{"id":66654,"date":"2026-01-27T07:17:46","date_gmt":"2026-01-26T23:17:46","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/66654.html"},"modified":"2026-01-27T07:17:46","modified_gmt":"2026-01-26T23:17:46","slug":"%e5%9c%ba%e6%99%af%e5%ae%9e%e6%88%98%ef%bc%9a%e5%9f%ba%e4%ba%8estm32%e7%9a%84%e5%85%89%e7%94%b5%e5%bc%8f%e5%bf%83%e7%8e%87%e7%9b%91%e6%b5%8b%e4%bb%aa%e4%b8%8e%e6%8a%a5%e8%ad%a6%e7%b3%bb%e7%bb%9f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/66654.html","title":{"rendered":"\u573a\u666f\u5b9e\u6218\uff1a\u57fa\u4e8eSTM32\u7684\u5149\u7535\u5f0f\u5fc3\u7387\u76d1\u6d4b\u4eea\u4e0e\u62a5\u8b66\u7cfb\u7edf\u89e3\u51b3\u65b9\u6848\u89e3\u6790"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\n<ul>\n<li>\u4e00\u3001\u65b9\u6848\u6574\u4f53\u8bbe\u8ba1\u4e0e\u539f\u7406\u8bf4\u660e<\/li>\n<li>\n<ul>\n<li>1.1 \u6838\u5fc3\u539f\u7406<\/li>\n<li>1.2 \u6574\u4f53\u67b6\u6784\u6d41\u7a0b\u56fe<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u3001\u786c\u4ef6\u9009\u578b\u4e0e\u63a5\u7ebf<\/li>\n<li>\n<ul>\n<li>2.1 \u6838\u5fc3\u786c\u4ef6\u6e05\u5355<\/li>\n<li>2.2 \u8be6\u7ec6\u63a5\u7ebf\u8bf4\u660e<\/li>\n<li>\n<ul>\n<li>&#xff08;1&#xff09;STM32\u4e0eMAX30102\u5fc3\u7387\u4f20\u611f\u5668\u63a5\u7ebf<\/li>\n<li>&#xff08;2&#xff09;STM32\u4e0eOLED\u663e\u793a\u5c4f\u63a5\u7ebf<\/li>\n<li>&#xff08;3&#xff09;STM32\u4e0e\u62a5\u8b66\u6a21\u5757\u63a5\u7ebf<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u4e09\u3001\u8f6f\u4ef6\u5f00\u53d1\u73af\u5883\u642d\u5efa<\/li>\n<li>\n<ul>\n<li>3.1 \u73af\u5883\u51c6\u5907<\/li>\n<li>3.2 STM32CubeMX\u521d\u59cb\u5316\u914d\u7f6e\u6b65\u9aa4<\/li>\n<li>\n<ul>\n<li>\u6b65\u9aa41&#xff1a;\u65b0\u5efa\u5de5\u7a0b<\/li>\n<li>\u6b65\u9aa42&#xff1a;\u914d\u7f6eRCC\u65f6\u949f<\/li>\n<li>\u6b65\u9aa43&#xff1a;\u914d\u7f6eI2C1&#xff08;\u7528\u4e8e\u4f20\u611f\u5668\u548cOLED\u901a\u4fe1&#xff09;<\/li>\n<li>\u6b65\u9aa44&#xff1a;\u914d\u7f6eGPIO\u5f15\u811a&#xff08;\u62a5\u8b66\u6a21\u5757&#xff09;<\/li>\n<li>\u6b65\u9aa45&#xff1a;\u914d\u7f6e\u5b9a\u65f6\u5668&#xff08;\u7528\u4e8e\u5b9a\u65f6\u91c7\u6837\u548cLED\u95ea\u70c1&#xff09;<\/li>\n<li>\u6b65\u9aa46&#xff1a;\u751f\u6210\u5de5\u7a0b\u4ee3\u7801<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u56db\u3001\u6838\u5fc3\u4ee3\u7801\u7f16\u5199<\/li>\n<li>\n<ul>\n<li>4.1 \u5934\u6587\u4ef6\u4e0e\u5168\u5c40\u53d8\u91cf\u5b9a\u4e49&#xff08;main.h&#xff09;<\/li>\n<li>4.2 \u5916\u8bbe\u521d\u59cb\u5316\u4ee3\u7801&#xff08;main.c&#xff09;<\/li>\n<li>4.3 MAX30102\u4f20\u611f\u5668\u9a71\u52a8\u51fd\u6570&#xff08;main.c\u7eed&#xff09;<\/li>\n<li>4.4 \u5fc3\u7387\u8ba1\u7b97\u4e0e\u6ee4\u6ce2\u51fd\u6570&#xff08;main.c\u7eed&#xff09;<\/li>\n<li>4.5 OLED\u663e\u793a\u9a71\u52a8\u51fd\u6570&#xff08;main.c\u7eed&#xff09;<\/li>\n<li>4.6 \u62a5\u8b66\u63a7\u5236\u4e0e\u5b9a\u65f6\u4e2d\u65ad\u51fd\u6570&#xff08;main.c\u7eed&#xff09;<\/li>\n<li>4.7 \u4e3b\u51fd\u6570&#xff08;main.c\u7eed&#xff09;<\/li>\n<\/ul>\n<\/li>\n<li>\u4e94\u3001\u4ee3\u7801\u70e7\u5f55\u4e0e\u8c03\u8bd5<\/li>\n<li>\n<ul>\n<li>5.1 \u4ee3\u7801\u7f16\u8bd1\u4e0e\u70e7\u5f55<\/li>\n<li>5.2 \u786c\u4ef6\u8c03\u8bd5\u6b65\u9aa4<\/li>\n<li>\n<ul>\n<li>\u6b65\u9aa41&#xff1a;\u7535\u6e90\u8c03\u8bd5<\/li>\n<li>\u6b65\u9aa42&#xff1a;\u4f20\u611f\u5668\u8c03\u8bd5<\/li>\n<li>\u6b65\u9aa43&#xff1a;\u5fc3\u7387\u8ba1\u7b97\u8c03\u8bd5<\/li>\n<li>\u6b65\u9aa44&#xff1a;\u62a5\u8b66\u529f\u80fd\u8c03\u8bd5<\/li>\n<\/ul>\n<\/li>\n<li>5.3 \u5e38\u89c1\u95ee\u9898\u4e0e\u89e3\u51b3<\/li>\n<\/ul>\n<\/li>\n<li>\u516d\u3001\u529f\u80fd\u6269\u5c55\u5efa\u8bae<\/li>\n<li>\u603b\u7ed3<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u4e00\u3001\u65b9\u6848\u6574\u4f53\u8bbe\u8ba1\u4e0e\u539f\u7406\u8bf4\u660e<\/h3>\n<p>\u4f60\u9700\u8981\u5b9e\u73b0\u7684\u662f\u57fa\u4e8eSTM32\u7684\u5149\u7535\u5f0f\u5fc3\u7387\u76d1\u6d4b\u4eea\u4e0e\u62a5\u8b66\u7cfb\u7edf&#xff0c;\u6838\u5fc3\u529f\u80fd\u5305\u542b\u5b9e\u65f6\u5fc3\u7387\u91c7\u96c6\u8ba1\u7b97\u548c\u5fc3\u7387\u5f02\u5e38\u62a5\u8b66\u4e24\u5927\u6a21\u5757\u3002\u672c\u65b9\u6848\u4ee5STM32F103C8T6\u6700\u5c0f\u7cfb\u7edf\u677f\u4e3a\u6838\u5fc3\u63a7\u5236\u5668&#xff0c;\u91c7\u7528MAX30102\u5149\u7535\u5fc3\u7387\u4f20\u611f\u5668\u91c7\u96c6PPG&#xff08;\u5149\u7535\u5bb9\u79ef\u8109\u640f\u6ce2&#xff09;\u4fe1\u53f7&#xff0c;\u901a\u8fc7\u6570\u5b57\u4fe1\u53f7\u5904\u7406\u7b97\u6cd5\u8ba1\u7b97\u5b9e\u65f6\u5fc3\u7387&#xff0c;\u5f53\u5fc3\u7387\u8d85\u51fa\u9884\u8bbe\u4e0a\u4e0b\u9608\u503c\u65f6&#xff0c;\u89e6\u53d1\u8702\u9e23\u5668&#043;LED\u58f0\u5149\u62a5\u8b66&#xff0c;\u540c\u65f6\u901a\u8fc7OLED\u5c4f\u5e55\u5b9e\u65f6\u663e\u793a\u5fc3\u7387\u6570\u503c\u548c\u72b6\u6001\u3002\u6574\u4e2a\u65b9\u6848\u91c7\u7528\u6a21\u5757\u5316\u7f16\u7a0b&#xff0c;\u6b65\u9aa4\u62c6\u89e3\u7ec6\u81f4&#xff0c;\u96f6\u57fa\u7840\u5c0f\u767d\u53ef\u5b8c\u5168\u590d\u523b\u843d\u5730\u3002<\/p>\n<h4>1.1 \u6838\u5fc3\u539f\u7406<\/h4>\n<ul>\n<li>\u5149\u7535\u5f0f\u5fc3\u7387\u76d1\u6d4b\u539f\u7406&#xff1a;MAX30102\u4f20\u611f\u5668\u5185\u7f6e\u7ea2\u5916LED\u548c\u5149\u7535\u63a2\u6d4b\u5668&#xff0c;\u7ea2\u5916\u5149\u7167\u5c04\u76ae\u80a4\u540e&#xff0c;\u8840\u6db2\u5bb9\u79ef\u968f\u5fc3\u810f\u640f\u52a8\u53d8\u5316&#xff0c;\u53cd\u5c04\u5149\u5f3a\u5ea6\u4e5f\u968f\u4e4b\u53d8\u5316&#xff0c;\u63a2\u6d4b\u5668\u5c06\u5149\u4fe1\u53f7\u8f6c\u6362\u4e3a\u7535\u4fe1\u53f7&#xff0c;\u4f20\u611f\u5668\u5185\u90e8\u5b8c\u6210AD\u8f6c\u6362\u540e\u901a\u8fc7I2C\u603b\u7ebf\u5c06\u6570\u5b57\u4fe1\u53f7\u4f20\u8f93\u7ed9STM32&#xff1b;STM32\u5bf9\u91c7\u96c6\u5230\u7684PPG\u539f\u59cb\u6570\u636e\u8fdb\u884c\u6ee4\u6ce2\u3001\u5cf0\u503c\u68c0\u6d4b\u7b49\u5904\u7406&#xff0c;\u8ba1\u7b97\u51fa\u6bcf\u5206\u949f\u5fc3\u7387&#xff08;BPM&#xff09;\u3002<\/li>\n<li>\u62a5\u8b66\u7cfb\u7edf\u539f\u7406&#xff1a;STM32\u5b9e\u65f6\u5bf9\u6bd4\u8ba1\u7b97\u51fa\u7684\u5fc3\u7387\u503c\u4e0e\u9884\u8bbe\u7684\u5fc3\u7387\u4e0a\u4e0b\u9608\u503c&#xff08;\u5982\u4e0b\u965050BPM\u3001\u4e0a\u9650120BPM&#xff09;&#xff0c;\u5f53\u5fc3\u7387\u8d85\u51fa\u9608\u503c\u8303\u56f4\u65f6&#xff0c;\u7acb\u5373\u63a7\u5236GPIO\u53e3\u8f93\u51fa\u9ad8\u4f4e\u7535\u5e73&#xff0c;\u9a71\u52a8\u8702\u9e23\u5668\u53d1\u58f0\u3001LED\u95ea\u70c1&#xff0c;\u540c\u65f6OLED\u5c4f\u5e55\u663e\u793a\u201c\u5fc3\u7387\u5f02\u5e38\u201d\u62a5\u8b66\u63d0\u793a\u3002<\/li>\n<li>\u6570\u636e\u663e\u793a\u539f\u7406&#xff1a;STM32\u901a\u8fc7I2C\u603b\u7ebf\u4e0e0.96\u5bf8OLED\u5c4f\u5e55\u901a\u4fe1&#xff0c;\u5b9e\u65f6\u5237\u65b0\u663e\u793a\u5f53\u524d\u5fc3\u7387\u6570\u503c\u3001\u5fc3\u7387\u72b6\u6001&#xff08;\u6b63\u5e38\/\u5f02\u5e38&#xff09;\u3001\u91c7\u6837\u8fdb\u5ea6\u7b49\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<h4>1.2 \u6574\u4f53\u67b6\u6784\u6d41\u7a0b\u56fe<\/h4>\n<p>\u4ee5\u4e0b\u662f\u7cfb\u7edf\u5b8c\u6574\u5de5\u4f5c\u6d41\u7a0b\u7684Mermaid\u6d41\u7a0b\u56fe&#xff0c;\u91c7\u7528\u6df1\u8272\u80cc\u666f\u3001\u767d\u8272\u5b57\u4f53&#xff0c;\u6392\u7248\u7f8e\u89c2\u4e14\u903b\u8f91\u5c42\u7ea7\u6e05\u6670&#xff1a;<\/p>\n<p>  #mermaid-svg-75X31mHVD0RD0ajC{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-75X31mHVD0RD0ajC .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-75X31mHVD0RD0ajC .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-75X31mHVD0RD0ajC .error-icon{fill:#552222;}#mermaid-svg-75X31mHVD0RD0ajC .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-75X31mHVD0RD0ajC .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-75X31mHVD0RD0ajC .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-75X31mHVD0RD0ajC .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-75X31mHVD0RD0ajC .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-75X31mHVD0RD0ajC .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-75X31mHVD0RD0ajC .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-75X31mHVD0RD0ajC .marker{fill:#333333;stroke:#333333;}#mermaid-svg-75X31mHVD0RD0ajC .marker.cross{stroke:#333333;}#mermaid-svg-75X31mHVD0RD0ajC svg{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-75X31mHVD0RD0ajC p{margin:0;}#mermaid-svg-75X31mHVD0RD0ajC .label{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;color:#333;}#mermaid-svg-75X31mHVD0RD0ajC .cluster-label text{fill:#333;}#mermaid-svg-75X31mHVD0RD0ajC .cluster-label span{color:#333;}#mermaid-svg-75X31mHVD0RD0ajC .cluster-label span p{background-color:transparent;}#mermaid-svg-75X31mHVD0RD0ajC .label text,#mermaid-svg-75X31mHVD0RD0ajC span{fill:#333;color:#333;}#mermaid-svg-75X31mHVD0RD0ajC .node rect,#mermaid-svg-75X31mHVD0RD0ajC .node circle,#mermaid-svg-75X31mHVD0RD0ajC .node ellipse,#mermaid-svg-75X31mHVD0RD0ajC .node polygon,#mermaid-svg-75X31mHVD0RD0ajC .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-75X31mHVD0RD0ajC .rough-node .label text,#mermaid-svg-75X31mHVD0RD0ajC .node .label text,#mermaid-svg-75X31mHVD0RD0ajC .image-shape .label,#mermaid-svg-75X31mHVD0RD0ajC .icon-shape .label{text-anchor:middle;}#mermaid-svg-75X31mHVD0RD0ajC .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-75X31mHVD0RD0ajC .rough-node .label,#mermaid-svg-75X31mHVD0RD0ajC .node .label,#mermaid-svg-75X31mHVD0RD0ajC .image-shape .label,#mermaid-svg-75X31mHVD0RD0ajC .icon-shape .label{text-align:center;}#mermaid-svg-75X31mHVD0RD0ajC .node.clickable{cursor:pointer;}#mermaid-svg-75X31mHVD0RD0ajC .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-75X31mHVD0RD0ajC .arrowheadPath{fill:#333333;}#mermaid-svg-75X31mHVD0RD0ajC .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-75X31mHVD0RD0ajC .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-75X31mHVD0RD0ajC .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-75X31mHVD0RD0ajC .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-75X31mHVD0RD0ajC .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-75X31mHVD0RD0ajC .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-75X31mHVD0RD0ajC .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-75X31mHVD0RD0ajC .cluster text{fill:#333;}#mermaid-svg-75X31mHVD0RD0ajC .cluster span{color:#333;}#mermaid-svg-75X31mHVD0RD0ajC div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-75X31mHVD0RD0ajC .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-75X31mHVD0RD0ajC rect.text{fill:none;stroke-width:0;}#mermaid-svg-75X31mHVD0RD0ajC .icon-shape,#mermaid-svg-75X31mHVD0RD0ajC .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-75X31mHVD0RD0ajC .icon-shape p,#mermaid-svg-75X31mHVD0RD0ajC .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-75X31mHVD0RD0ajC .icon-shape rect,#mermaid-svg-75X31mHVD0RD0ajC .image-shape rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-75X31mHVD0RD0ajC .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-75X31mHVD0RD0ajC .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-75X31mHVD0RD0ajC :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}#mermaid-svg-75X31mHVD0RD0ajC .darkStyle&gt;*{fill:#2c3e50!important;stroke:#ffffff!important;stroke-width:2px!important;color:#ffffff!important;fontSize:14px!important;fontFamily:Arial!important;}#mermaid-svg-75X31mHVD0RD0ajC .darkStyle span{fill:#2c3e50!important;stroke:#ffffff!important;stroke-width:2px!important;color:#ffffff!important;fontSize:14px!important;fontFamily:Arial!important;}#mermaid-svg-75X31mHVD0RD0ajC .darkStyle tspan{fill:#ffffff!important;}#mermaid-svg-75X31mHVD0RD0ajC .startEnd&gt;*{fill:#e74c3c!important;stroke:#ffffff!important;stroke-width:2px!important;color:#ffffff!important;fontSize:14px!important;fontFamily:Arial!important;}#mermaid-svg-75X31mHVD0RD0ajC .startEnd span{fill:#e74c3c!important;stroke:#ffffff!important;stroke-width:2px!important;color:#ffffff!important;fontSize:14px!important;fontFamily:Arial!important;}#mermaid-svg-75X31mHVD0RD0ajC .startEnd tspan{fill:#ffffff!important;}#mermaid-svg-75X31mHVD0RD0ajC .decision&gt;*{fill:#3498db!important;stroke:#ffffff!important;stroke-width:2px!important;color:#ffffff!important;fontSize:14px!important;fontFamily:Arial!important;}#mermaid-svg-75X31mHVD0RD0ajC .decision span{fill:#3498db!important;stroke:#ffffff!important;stroke-width:2px!important;color:#ffffff!important;fontSize:14px!important;fontFamily:Arial!important;}#mermaid-svg-75X31mHVD0RD0ajC .decision tspan{fill:#ffffff!important;}#mermaid-svg-75X31mHVD0RD0ajC .process&gt;*{fill:#27ae60!important;stroke:#ffffff!important;stroke-width:2px!important;color:#ffffff!important;fontSize:14px!important;fontFamily:Arial!important;}#mermaid-svg-75X31mHVD0RD0ajC .process span{fill:#27ae60!important;stroke:#ffffff!important;stroke-width:2px!important;color:#ffffff!important;fontSize:14px!important;fontFamily:Arial!important;}#mermaid-svg-75X31mHVD0RD0ajC .process tspan{fill:#ffffff!important;}#mermaid-svg-75X31mHVD0RD0ajC .alarm&gt;*{fill:#f39c12!important;stroke:#ffffff!important;stroke-width:2px!important;color:#ffffff!important;fontSize:14px!important;fontFamily:Arial!important;}#mermaid-svg-75X31mHVD0RD0ajC .alarm span{fill:#f39c12!important;stroke:#ffffff!important;stroke-width:2px!important;color:#ffffff!important;fontSize:14px!important;fontFamily:Arial!important;}#mermaid-svg-75X31mHVD0RD0ajC .alarm tspan{fill:#ffffff!important;} <\/p>\n<p>         <span class=\"edgeLabel\"><\/span> <\/p>\n<p>         <span class=\"edgeLabel\"><\/span> <\/p>\n<p>         <span class=\"edgeLabel\"><\/span> <\/p>\n<p>         <span class=\"edgeLabel\"><\/span> <\/p>\n<p>         <span class=\"edgeLabel\"><\/span> <\/p>\n<p>         <span class=\"edgeLabel\"><\/span> <\/p>\n<p>         <span class=\"edgeLabel\"><\/span> <\/p>\n<p>         <span class=\"edgeLabel\"><\/span> <\/p>\n<p>         <span class=\"edgeLabel\"><\/span> <\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\u662f<\/p>\n<p><\/span> <\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\u5426<\/p>\n<p><\/span> <\/p>\n<p>         <span class=\"edgeLabel\"><\/span> <\/p>\n<p>         <span class=\"edgeLabel\"><\/span> <\/p>\n<p>         <span class=\"edgeLabel\"><\/span> <\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\u662f<\/p>\n<p><\/span> <\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\u5426<\/p>\n<p><\/span> <\/p>\n<p>         <span style=\"color:#ffffff !important\" class=\"nodeLabel\"><\/p>\n<p>\u7cfb\u7edf\u4e0a\u7535\u521d\u59cb\u5316<\/p>\n<p><\/span> <\/p>\n<p>         <span style=\"color:#ffffff !important\" class=\"nodeLabel\"><\/p>\n<p>GPIO\/I2C\/\u5b9a\u65f6\u5668\/\u4e2d\u65ad\u914d\u7f6e<\/p>\n<p><\/span> <\/p>\n<p>         <span style=\"color:#ffffff !important\" class=\"nodeLabel\"><\/p>\n<p>\u521d\u59cb\u5316MAX30102\u4f20\u611f\u5668<\/p>\n<p><\/span> <\/p>\n<p>         <span style=\"color:#ffffff !important\" class=\"nodeLabel\"><\/p>\n<p>\u521d\u59cb\u5316OLED\u663e\u793a\u5c4f<\/p>\n<p><\/span> <\/p>\n<p>         <span style=\"color:#ffffff !important\" class=\"nodeLabel\"><\/p>\n<p>\u6e05\u7a7aOLED\u7f13\u5b58&#xff0c;\u663e\u793a\u521d\u59cb\u754c\u9762<\/p>\n<p><\/span> <\/p>\n<p>         <span style=\"color:#ffffff !important\" class=\"nodeLabel\"><\/p>\n<p>\u901a\u8fc7I2C\u8bfb\u53d6MAX30102\u539f\u59cbPPG\u6570\u636e<\/p>\n<p><\/span> <\/p>\n<p>         <span style=\"color:#ffffff !important\" class=\"nodeLabel\"><\/p>\n<p>\u5bf9\u539f\u59cb\u6570\u636e\u8fdb\u884c\u6ee4\u6ce2\u5904\u7406&#xff08;\u53bb\u9664\u566a\u58f0&#xff09;<\/p>\n<p><\/span> <\/p>\n<p>         <span style=\"color:#ffffff !important\" class=\"nodeLabel\"><\/p>\n<p>\u5cf0\u503c\u68c0\u6d4b\u7b97\u6cd5\u63d0\u53d6\u8109\u640f\u7279\u5f81\u70b9<\/p>\n<p><\/span> <\/p>\n<p>         <span style=\"color:#ffffff !important\" class=\"nodeLabel\"><\/p>\n<p>\u8ba1\u7b97\u5b9e\u65f6\u5fc3\u7387&#xff08;BPM&#xff09;<\/p>\n<p><\/span> <\/p>\n<p>         <span style=\"color:#ffffff !important\" class=\"nodeLabel\"><\/p>\n<p>\u5fc3\u7387\u662f\u5426\u5728\u9608\u503c\u8303\u56f4\u5185?<\/p>\n<p><\/span> <\/p>\n<p>         <span style=\"color:#ffffff !important\" class=\"nodeLabel\"><\/p>\n<p>OLED\u663e\u793a\u201c\u5fc3\u7387\u6b63\u5e38\u201d&#043;\u5f53\u524dBPM\u503c<\/p>\n<p><\/span> <\/p>\n<p>         <span style=\"color:#ffffff !important\" class=\"nodeLabel\"><\/p>\n<p>\u89e6\u53d1\u58f0\u5149\u62a5\u8b66&#xff08;\u8702\u9e23\u5668\u54cd&#043;LED\u95ea\u70c1&#xff09;<\/p>\n<p><\/span> <\/p>\n<p>         <span style=\"color:#ffffff !important\" class=\"nodeLabel\"><\/p>\n<p>OLED\u663e\u793a\u201c\u5fc3\u7387\u5f02\u5e38\u201d&#043;\u5f53\u524dBPM\u503c&#043;\u9608\u503c\u63d0\u793a<\/p>\n<p><\/span> <\/p>\n<p>         <span style=\"color:#ffffff !important\" class=\"nodeLabel\"><\/p>\n<p>\u7cfb\u7edf\u662f\u5426\u6301\u7eed\u8fd0\u884c?<\/p>\n<p><\/span> <\/p>\n<p>         <span style=\"color:#ffffff !important\" class=\"nodeLabel\"><\/p>\n<p>\u7cfb\u7edf\u505c\u6b62<\/p>\n<p><\/span> <\/p>\n<h3>\u4e8c\u3001\u786c\u4ef6\u9009\u578b\u4e0e\u63a5\u7ebf<\/h3>\n<h4>2.1 \u6838\u5fc3\u786c\u4ef6\u6e05\u5355<\/h4>\n<table>\n<tr>\u786c\u4ef6\u540d\u79f0\u578b\u53f7\/\u89c4\u683c\u6570\u91cf\u4f5c\u7528<\/tr>\n<tbody>\n<tr>\n<td>STM32\u63a7\u5236\u5668<\/td>\n<td>STM32F103C8T6\u6700\u5c0f\u7cfb\u7edf\u677f<\/td>\n<td>1<\/td>\n<td>\u6838\u5fc3\u63a7\u5236\u4e0e\u6570\u636e\u5904\u7406<\/td>\n<\/tr>\n<tr>\n<td>\u5149\u7535\u5fc3\u7387\u4f20\u611f\u5668<\/td>\n<td>MAX30102\u6a21\u5757&#xff08;I2C\u7248&#xff09;<\/td>\n<td>1<\/td>\n<td>\u91c7\u96c6PPG\u8109\u640f\u6ce2\u4fe1\u53f7<\/td>\n<\/tr>\n<tr>\n<td>OLED\u663e\u793a\u5c4f<\/td>\n<td>0.96\u5bf8I2C\u63a5\u53e3&#xff08;128*64&#xff09;<\/td>\n<td>1<\/td>\n<td>\u5b9e\u65f6\u663e\u793a\u5fc3\u7387\u4e0e\u72b6\u6001<\/td>\n<\/tr>\n<tr>\n<td>\u6709\u6e90\u8702\u9e23\u5668\u6a21\u5757<\/td>\n<td>\u4f4e\u7535\u5e73\u89e6\u53d1\u578b<\/td>\n<td>1<\/td>\n<td>\u5f02\u5e38\u62a5\u8b66\u53d1\u58f0<\/td>\n<\/tr>\n<tr>\n<td>LED\u6307\u793a\u706f<\/td>\n<td>\u7ea2\u8272\/\u7eff\u8272&#xff08;\u542b\u9650\u6d41\u7535\u963b&#xff09;<\/td>\n<td>\u54041<\/td>\n<td>\u72b6\u6001\u6307\u793a&#xff08;\u7eff&#061;\u6b63\u5e38&#xff0c;\u7ea2&#061;\u62a5\u8b66&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u7535\u6e90\u6a21\u5757<\/td>\n<td>5V USB\u4f9b\u7535\u6a21\u5757<\/td>\n<td>1<\/td>\n<td>\u7ed9\u6574\u4e2a\u7cfb\u7edf\u4f9b\u7535<\/td>\n<\/tr>\n<tr>\n<td>\u675c\u90a6\u7ebf<\/td>\n<td>\u516c\u5bf9\u516c\/\u516c\u5bf9\u6bcd<\/td>\n<td>\u82e5\u5e72<\/td>\n<td>\u786c\u4ef6\u63a5\u7ebf<\/td>\n<\/tr>\n<tr>\n<td>ST-Link\u4e0b\u8f7d\u5668<\/td>\n<td>V2\u7248<\/td>\n<td>1<\/td>\n<td>\u4ee3\u7801\u70e7\u5f55\u4e0e\u8c03\u8bd5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>2.2 \u8be6\u7ec6\u63a5\u7ebf\u8bf4\u660e<\/h4>\n<h5>&#xff08;1&#xff09;STM32\u4e0eMAX30102\u5fc3\u7387\u4f20\u611f\u5668\u63a5\u7ebf<\/h5>\n<p>MAX30102\u91c7\u7528I2C\u901a\u4fe1&#xff0c;\u9ed8\u8ba4I2C\u5730\u5740\u4e3a0xAE&#xff08;\u5199&#xff09;\/0xAF&#xff08;\u8bfb&#xff09;&#xff0c;\u63a5\u7ebf\u5982\u4e0b&#xff1a;<\/p>\n<table>\n<tr>STM32\u5f15\u811aMAX30102\u5f15\u811a\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>PB6<\/td>\n<td>SCL<\/td>\n<td>I2C\u65f6\u949f\u7ebf<\/td>\n<\/tr>\n<tr>\n<td>PB7<\/td>\n<td>SDA<\/td>\n<td>I2C\u6570\u636e\u7ebf<\/td>\n<\/tr>\n<tr>\n<td>3.3V<\/td>\n<td>VCC<\/td>\n<td>\u4f20\u611f\u5668\u4f9b\u7535&#xff08;\u5fc5\u987b3.3V&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>GND<\/td>\n<td>GND<\/td>\n<td>\u5171\u5730<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5>&#xff08;2&#xff09;STM32\u4e0eOLED\u663e\u793a\u5c4f\u63a5\u7ebf<\/h5>\n<p>OLED\u540c\u6837\u91c7\u7528I2C\u901a\u4fe1&#xff0c;\u63a5\u7ebf\u4e0eMAX30102\u590d\u7528I2C\u603b\u7ebf&#xff08;\u8282\u7701\u5f15\u811a&#xff09;&#xff1a;<\/p>\n<table>\n<tr>STM32\u5f15\u811aOLED\u5f15\u811a\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>PB6<\/td>\n<td>SCL<\/td>\n<td>I2C\u65f6\u949f\u7ebf&#xff08;\u4e0e\u4f20\u611f\u5668\u590d\u7528&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>PB7<\/td>\n<td>SDA<\/td>\n<td>I2C\u6570\u636e\u7ebf&#xff08;\u4e0e\u4f20\u611f\u5668\u590d\u7528&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>3.3V<\/td>\n<td>VCC<\/td>\n<td>OLED\u4f9b\u7535<\/td>\n<\/tr>\n<tr>\n<td>GND<\/td>\n<td>GND<\/td>\n<td>\u5171\u5730<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5>&#xff08;3&#xff09;STM32\u4e0e\u62a5\u8b66\u6a21\u5757\u63a5\u7ebf<\/h5>\n<table>\n<tr>STM32\u5f15\u811a\u5916\u8bbe\u5f15\u811a\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>PA0<\/td>\n<td>\u6709\u6e90\u8702\u9e23\u5668IN\u7aef<\/td>\n<td>\u4f4e\u7535\u5e73\u89e6\u53d1\u8702\u9e23\u5668\u62a5\u8b66<\/td>\n<\/tr>\n<tr>\n<td>PA1<\/td>\n<td>\u7eff\u8272LED\u6b63\u6781<\/td>\n<td>\u6b63\u5e38\u72b6\u6001\u5e38\u4eae&#xff08;\u4e32220\u03a9\u7535\u963b&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>PA2<\/td>\n<td>\u7ea2\u8272LED\u6b63\u6781<\/td>\n<td>\u5f02\u5e38\u72b6\u6001\u95ea\u70c1&#xff08;\u4e32220\u03a9\u7535\u963b&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>GND<\/td>\n<td>\u8702\u9e23\u5668\/LED\u8d1f\u6781<\/td>\n<td>\u5171\u5730<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u4e09\u3001\u8f6f\u4ef6\u5f00\u53d1\u73af\u5883\u642d\u5efa<\/h3>\n<h4>3.1 \u73af\u5883\u51c6\u5907<\/h4>\n<li>STM32CubeMX&#xff1a;\u4e0b\u8f7dV6.0\u53ca\u4ee5\u4e0a\u7248\u672c&#xff08;\u5b98\u7f51&#xff1a;https:\/\/www.st.com\/en\/development-tools\/stm32cubemx.html&#xff09;&#xff0c;\u7528\u4e8e\u56fe\u5f62\u5316\u914d\u7f6eSTM32\u5916\u8bbe&#xff0c;\u81ea\u52a8\u751f\u6210\u521d\u59cb\u5316\u4ee3\u7801\u3002<\/li>\n<li>Keil MDK-ARM&#xff1a;\u4e0b\u8f7dV5.36\u53ca\u4ee5\u4e0a\u7248\u672c&#xff0c;\u5b89\u88c5STM32F103C8T6\u5bf9\u5e94\u7684Device Pack&#xff08;\u5728Keil\u4e2d\u901a\u8fc7\u201cPack Installer\u201d\u5b89\u88c5&#xff09;&#xff0c;\u7528\u4e8e\u4ee3\u7801\u7f16\u5199\u3001\u7f16\u8bd1\u548c\u70e7\u5f55\u3002<\/li>\n<li>ST-Link\u9a71\u52a8&#xff1a;\u5b89\u88c5ST-Link V2\u9a71\u52a8&#xff0c;\u786e\u4fdd\u7535\u8111\u80fd\u8bc6\u522b\u4e0b\u8f7d\u5668\u3002<\/li>\n<li>\u8f85\u52a9\u5de5\u5177&#xff1a;\u4e32\u53e3\u8c03\u8bd5\u52a9\u624b&#xff08;\u53ef\u9009&#xff0c;\u7528\u4e8e\u8c03\u8bd5\u8f93\u51fa&#xff09;\u3001\u4e07\u7528\u8868&#xff08;\u68c0\u67e5\u63a5\u7ebf\u548c\u4f9b\u7535&#xff09;\u3002<\/li>\n<h4>3.2 STM32CubeMX\u521d\u59cb\u5316\u914d\u7f6e\u6b65\u9aa4<\/h4>\n<h5>\u6b65\u9aa41&#xff1a;\u65b0\u5efa\u5de5\u7a0b<\/h5>\n<ul>\n<li>\u6253\u5f00STM32CubeMX&#xff0c;\u70b9\u51fb\u201cNew Project\u201d&#xff0c;\u5728\u641c\u7d22\u6846\u8f93\u5165\u201cSTM32F103C8T6\u201d&#xff0c;\u9009\u62e9\u5bf9\u5e94\u578b\u53f7\u540e\u70b9\u51fb\u201cStart Project\u201d\u3002<\/li>\n<li>\u5f39\u51fa\u201cProject Manager\u201d\u63d0\u793a\u6846&#xff0c;\u70b9\u51fb\u201cOK\u201d\u8df3\u8fc7\u3002<\/li>\n<\/ul>\n<h5>\u6b65\u9aa42&#xff1a;\u914d\u7f6eRCC\u65f6\u949f<\/h5>\n<ul>\n<li>\u5de6\u4fa7\u83dc\u5355\u680f\u9009\u62e9\u201cRCC\u201d&#xff0c;\u5728\u201cHigh Speed Clock (HSE)\u201d\u4e2d\u9009\u62e9\u201cCrystal\/Ceramic Resonator\u201d&#xff08;\u5916\u90e8\u6676\u632f&#xff09;&#xff0c;\u542f\u7528\u5916\u90e88MHz\u6676\u632f\u3002<\/li>\n<li>\u70b9\u51fb\u9876\u90e8\u201cClock Configuration\u201d&#xff0c;\u5c06\u7cfb\u7edf\u65f6\u949f&#xff08;SYSCLK&#xff09;\u914d\u7f6e\u4e3a72MHz&#xff1a;\n<ul>\n<li>HSE &#061; 8MHz<\/li>\n<li>PLLMUL &#061; 9&#xff08;8*9&#061;72MHz&#xff09;<\/li>\n<li>AHB Prescaler &#061; 1&#xff08;HCLK&#061;72MHz&#xff09;<\/li>\n<li>APB1 Prescaler &#061; 2&#xff08;PCLK1&#061;36MHz&#xff09;<\/li>\n<li>APB2 Prescaler &#061; 1&#xff08;PCLK2&#061;72MHz&#xff09;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>\u6b65\u9aa43&#xff1a;\u914d\u7f6eI2C1&#xff08;\u7528\u4e8e\u4f20\u611f\u5668\u548cOLED\u901a\u4fe1&#xff09;<\/h5>\n<ul>\n<li>\u5de6\u4fa7\u83dc\u5355\u680f\u9009\u62e9\u201cI2C1\u201d&#xff1a;\n<ul>\n<li>\u6a21\u5f0f\u9009\u62e9\u201cI2C Master Mode\u201d&#xff08;\u4e3b\u673a\u6a21\u5f0f&#xff09;&#xff1b;<\/li>\n<li>\u914d\u7f6e\u53c2\u6570&#xff1a;\n<ul>\n<li>Clock Speed&#xff08;SCL\u65f6\u949f\u9891\u7387&#xff09;&#xff1a;100kHz&#xff08;\u6807\u51c6\u6a21\u5f0f&#xff0c;\u517c\u5bb9\u4f20\u611f\u5668\u548cOLED&#xff09;&#xff1b;<\/li>\n<li>Addressing Mode&#xff1a;7-bit&#xff08;7\u4f4d\u5730\u5740\u6a21\u5f0f&#xff09;&#xff1b;<\/li>\n<li>\u5176\u4f59\u53c2\u6570\u9ed8\u8ba4\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u5f15\u811a\u6620\u5c04&#xff1a;PB6&#xff08;I2C1_SCL&#xff09;\u3001PB7&#xff08;I2C1_SDA&#xff09;&#xff0c;\u786e\u8ba4\u5f15\u811a\u590d\u7528\u529f\u80fd\u6b63\u786e\u3002<\/li>\n<\/ul>\n<h5>\u6b65\u9aa44&#xff1a;\u914d\u7f6eGPIO\u5f15\u811a&#xff08;\u62a5\u8b66\u6a21\u5757&#xff09;<\/h5>\n<ul>\n<li>\u5de6\u4fa7\u83dc\u5355\u680f\u9009\u62e9\u201cGPIO\u201d&#xff1a;\n<ul>\n<li>PA0&#xff1a;\u8bbe\u7f6e\u4e3a\u201cOutput Push Pull\u201d&#xff08;\u63a8\u633d\u8f93\u51fa&#xff09;&#xff0c;\u547d\u540d\u4e3a\u201cBUZZER\u201d&#xff0c;\u521d\u59cb\u7535\u5e73\u201cHigh\u201d&#xff08;\u8702\u9e23\u5668\u9ed8\u8ba4\u4e0d\u54cd&#xff09;&#xff1b;<\/li>\n<li>PA1&#xff1a;\u8bbe\u7f6e\u4e3a\u201cOutput Push Pull\u201d&#xff0c;\u547d\u540d\u4e3a\u201cLED_GREEN\u201d&#xff0c;\u521d\u59cb\u7535\u5e73\u201cLow\u201d&#xff08;\u9ed8\u8ba4\u7184\u706d&#xff0c;\u6b63\u5e38\u540e\u5e38\u4eae&#xff09;&#xff1b;<\/li>\n<li>PA2&#xff1a;\u8bbe\u7f6e\u4e3a\u201cOutput Push Pull\u201d&#xff0c;\u547d\u540d\u4e3a\u201cLED_RED\u201d&#xff0c;\u521d\u59cb\u7535\u5e73\u201cLow\u201d&#xff08;\u9ed8\u8ba4\u7184\u706d&#xff0c;\u5f02\u5e38\u540e\u95ea\u70c1&#xff09;&#xff1b;<\/li>\n<li>\u6240\u6709GPIO\u5f15\u811a\u901f\u5ea6\u8bbe\u7f6e\u4e3a\u201cHigh\u201d&#xff0c;\u65e0\u4e0a\u62c9\/\u4e0b\u62c9\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>\u6b65\u9aa45&#xff1a;\u914d\u7f6e\u5b9a\u65f6\u5668&#xff08;\u7528\u4e8e\u5b9a\u65f6\u91c7\u6837\u548cLED\u95ea\u70c1&#xff09;<\/h5>\n<ul>\n<li>\u5de6\u4fa7\u83dc\u5355\u680f\u9009\u62e9\u201cTIM2\u201d&#xff1a;\n<ul>\n<li>\u6a21\u5f0f\u9009\u62e9\u201cUp Counter\u201d&#xff08;\u5411\u4e0a\u8ba1\u6570&#xff09;&#xff1b;<\/li>\n<li>\u9884\u5206\u9891\u5668&#xff08;Prescaler&#xff09;&#xff1a;71&#xff08;72MHz\/72&#061;1MHz&#xff0c;\u8ba1\u6570\u9891\u73871MHz&#xff09;&#xff1b;<\/li>\n<li>\u81ea\u52a8\u91cd\u88c5\u503c&#xff08;ARR&#xff09;&#xff1a;9999&#xff08;1MHz\/10000&#061;100Hz&#xff0c;\u5b9a\u65f610ms&#xff09;&#xff1b;<\/li>\n<li>\u542f\u7528\u201cAuto-reload preload\u201d&#xff1b;<\/li>\n<li>\u5f00\u542fTIM2\u4e2d\u65ad&#xff08;NVIC Settings\u4e2d\u52fe\u9009TIM2 global interrupt&#xff0c;\u4f18\u5148\u7ea7\u8bbe\u4e3a1&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>\u6b65\u9aa46&#xff1a;\u751f\u6210\u5de5\u7a0b\u4ee3\u7801<\/h5>\n<ul>\n<li>\u70b9\u51fb\u9876\u90e8\u201cProject Manager\u201d&#xff1a;\n<ul>\n<li>Project Name&#xff1a;\u8bbe\u7f6e\u4e3a\u201cHeartRate_Monitor\u201d&#xff1b;<\/li>\n<li>Project Path&#xff1a;\u9009\u62e9\u975e\u4e2d\u6587\u8def\u5f84&#xff08;\u5982D:\\\\STM32_Projects\\\\HeartRate_Monitor&#xff09;&#xff1b;<\/li>\n<li>Toolchain\/IDE&#xff1a;\u9009\u62e9\u201cMDK-ARM\u201d&#xff0c;\u7248\u672c\u201cV5\u201d&#xff1b;<\/li>\n<li>\u70b9\u51fb\u201cCode Generator\u201d&#xff0c;\u52fe\u9009\u201cGenerate peripheral initialization as a pair of \u2018.c\/.h\u2019 files per peripheral\u201d&#xff08;\u6309\u5916\u8bbe\u5206\u6587\u4ef6\u751f\u6210\u4ee3\u7801&#xff09;&#xff1b;<\/li>\n<li>\u70b9\u51fb\u201cGenerate Code\u201d&#xff0c;\u751f\u6210\u5b8c\u6210\u540e\u70b9\u51fb\u201cOpen Project\u201d\u76f4\u63a5\u6253\u5f00Keil\u5de5\u7a0b\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u56db\u3001\u6838\u5fc3\u4ee3\u7801\u7f16\u5199<\/h3>\n<h4>4.1 \u5934\u6587\u4ef6\u4e0e\u5168\u5c40\u53d8\u91cf\u5b9a\u4e49&#xff08;main.h&#xff09;<\/h4>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">ifndef<\/span> <span class=\"token expression\">__MAIN_H<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">__MAIN_H<\/span><\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;stm32f1xx_hal.h&#034;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/* \u5f15\u811a\u5b8f\u5b9a\u4e49 *\/<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">BUZZER_PIN<\/span> <span class=\"token expression\">GPIO_PIN_0<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">BUZZER_GPIO_PORT<\/span> <span class=\"token expression\">GPIOA<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">LED_GREEN_PIN<\/span> <span class=\"token expression\">GPIO_PIN_1<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">LED_GREEN_GPIO_PORT<\/span> <span class=\"token expression\">GPIOA<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">LED_RED_PIN<\/span> <span class=\"token expression\">GPIO_PIN_2<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">LED_RED_GPIO_PORT<\/span> <span class=\"token expression\">GPIOA<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/* \u5fc3\u7387\u9608\u503c\u5b9a\u4e49&#xff08;\u53ef\u6839\u636e\u9700\u6c42\u8c03\u6574&#xff09; *\/<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">HEART_RATE_LOW_THRESHOLD<\/span> <span class=\"token expression\"><span class=\"token number\">50<\/span>    <\/span><span class=\"token comment\">\/\/ \u5fc3\u7387\u4e0b\u9650&#xff08;BPM&#xff09;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">HEART_RATE_HIGH_THRESHOLD<\/span> <span class=\"token expression\"><span class=\"token number\">120<\/span>  <\/span><span class=\"token comment\">\/\/ \u5fc3\u7387\u4e0a\u9650&#xff08;BPM&#xff09;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/* MAX30102\u76f8\u5173\u5b8f\u5b9a\u4e49 *\/<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">MAX30102_I2C_ADDR<\/span> <span class=\"token expression\"><span class=\"token number\">0xAE<\/span>         <\/span><span class=\"token comment\">\/\/ I2C\u5199\u5730\u5740&#xff08;\u8bfb\u5730\u57400xAF&#xff09;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">MAX30102_REG_INT_STATUS1<\/span> <span class=\"token expression\"><span class=\"token number\">0x00<\/span>  <\/span><span class=\"token comment\">\/\/ \u4e2d\u65ad\u72b6\u6001\u5bc4\u5b58\u56681<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">MAX30102_REG_INT_ENABLE1<\/span> <span class=\"token expression\"><span class=\"token number\">0x01<\/span>  <\/span><span class=\"token comment\">\/\/ \u4e2d\u65ad\u4f7f\u80fd\u5bc4\u5b58\u56681<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">MAX30102_REG_FIFO_WR_PTR<\/span> <span class=\"token expression\"><span class=\"token number\">0x02<\/span>  <\/span><span class=\"token comment\">\/\/ FIFO\u5199\u6307\u9488<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">MAX30102_REG_OVF_COUNTER<\/span> <span class=\"token expression\"><span class=\"token number\">0x03<\/span>  <\/span><span class=\"token comment\">\/\/ \u6ea2\u51fa\u8ba1\u6570\u5668<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">MAX30102_REG_FIFO_RD_PTR<\/span> <span class=\"token expression\"><span class=\"token number\">0x04<\/span>  <\/span><span class=\"token comment\">\/\/ FIFO\u8bfb\u6307\u9488<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">MAX30102_REG_FIFO_DATA<\/span> <span class=\"token expression\"><span class=\"token number\">0x05<\/span>    <\/span><span class=\"token comment\">\/\/ FIFO\u6570\u636e\u5bc4\u5b58\u5668<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">MAX30102_REG_MODE_CONFIG<\/span> <span class=\"token expression\"><span class=\"token number\">0x06<\/span>  <\/span><span class=\"token comment\">\/\/ \u6a21\u5f0f\u914d\u7f6e\u5bc4\u5b58\u5668<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">MAX30102_REG_SPO2_CONFIG<\/span> <span class=\"token expression\"><span class=\"token number\">0x07<\/span>  <\/span><span class=\"token comment\">\/\/ \u8840\u6c27\/\u5fc3\u7387\u914d\u7f6e\u5bc4\u5b58\u5668<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">MAX30102_REG_LED1_PA<\/span> <span class=\"token expression\"><span class=\"token number\">0x09<\/span>      <\/span><span class=\"token comment\">\/\/ LED1&#xff08;\u7ea2\u5916&#xff09;\u529f\u7387<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">MAX30102_REG_LED2_PA<\/span> <span class=\"token expression\"><span class=\"token number\">0x0A<\/span>      <\/span><span class=\"token comment\">\/\/ LED2&#xff08;\u7ea2\u5149&#xff09;\u529f\u7387<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/* \u5168\u5c40\u53d8\u91cf *\/<\/span><br \/>\n<span class=\"token keyword\">extern<\/span> <span class=\"token class-name\">uint32_t<\/span> heart_rate<span class=\"token punctuation\">;<\/span>           <span class=\"token comment\">\/\/ \u5b9e\u65f6\u5fc3\u7387\u503c&#xff08;BPM&#xff09;<\/span><br \/>\n<span class=\"token keyword\">extern<\/span> <span class=\"token class-name\">uint8_t<\/span> heart_rate_status<span class=\"token punctuation\">;<\/span>     <span class=\"token comment\">\/\/ \u5fc3\u7387\u72b6\u6001&#xff1a;0&#061;\u6b63\u5e38&#xff0c;1&#061;\u8fc7\u4f4e&#xff0c;2&#061;\u8fc7\u9ad8<\/span><br \/>\n<span class=\"token keyword\">extern<\/span> <span class=\"token class-name\">uint16_t<\/span> ppg_raw_data<span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>    <span class=\"token comment\">\/\/ \u5b58\u50a8PPG\u539f\u59cb\u6570\u636e&#xff08;\u73af\u5f62\u7f13\u51b2\u533a&#xff09;<\/span><br \/>\n<span class=\"token keyword\">extern<\/span> <span class=\"token class-name\">uint8_t<\/span> ppg_data_index<span class=\"token punctuation\">;<\/span>        <span class=\"token comment\">\/\/ \u6570\u636e\u7f13\u51b2\u533a\u7d22\u5f15<\/span><br \/>\n<span class=\"token keyword\">extern<\/span> <span class=\"token class-name\">uint8_t<\/span> alarm_flag<span class=\"token punctuation\">;<\/span>            <span class=\"token comment\">\/\/ \u62a5\u8b66\u6807\u5fd7&#xff1a;0&#061;\u65e0\u62a5\u8b66&#xff0c;1&#061;\u62a5\u8b66<\/span><\/p>\n<p><span class=\"token comment\">\/* \u51fd\u6570\u58f0\u660e *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">SystemClock_Config<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">MX_GPIO_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">MX_I2C1_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">MX_TIM2_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ MAX30102\u4f20\u611f\u5668\u76f8\u5173\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">MAX30102_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">MAX30102_WriteReg<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> reg_addr<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint8_t<\/span> data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\">uint8_t<\/span> <span class=\"token function\">MAX30102_ReadReg<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> reg_addr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">MAX30102_ReadFIFO<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint16_t<\/span> <span class=\"token operator\">*<\/span>ir_data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5fc3\u7387\u8ba1\u7b97\u76f8\u5173\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">PPG_Data_Filter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint16_t<\/span> raw_data<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint16_t<\/span> <span class=\"token operator\">*<\/span>filtered_data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\">uint32_t<\/span> <span class=\"token function\">Calculate_HeartRate<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint16_t<\/span> <span class=\"token operator\">*<\/span>filtered_data<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint8_t<\/span> data_len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ OLED\u663e\u793a\u76f8\u5173\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">OLED_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">OLED_Clear<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">OLED_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> x<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint8_t<\/span> y<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint8_t<\/span> <span class=\"token operator\">*<\/span>str<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">OLED_ShowNum<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> x<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint8_t<\/span> y<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint32_t<\/span> num<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint8_t<\/span> len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">OLED_ShowHeartRate<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint32_t<\/span> bpm<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint8_t<\/span> status<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u62a5\u8b66\u63a7\u5236\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">Alarm_Control<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> status<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">endif<\/span> <span class=\"token comment\">\/* __MAIN_H *\/<\/span><\/span><\/p>\n<h4>4.2 \u5916\u8bbe\u521d\u59cb\u5316\u4ee3\u7801&#xff08;main.c&#xff09;<\/h4>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;main.h&#034;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/* \u5168\u5c40\u53d8\u91cf\u5b9a\u4e49 *\/<\/span><br \/>\n<span class=\"token class-name\">uint32_t<\/span> heart_rate <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\">uint8_t<\/span> heart_rate_status <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\">uint16_t<\/span> ppg_raw_data<span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\">uint8_t<\/span> ppg_data_index <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\">uint8_t<\/span> alarm_flag <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/* \u5916\u8bbe\u53e5\u67c4 *\/<\/span><br \/>\nI2C_HandleTypeDef hi2c1<span class=\"token punctuation\">;<\/span><br \/>\nTIM_HandleTypeDef htim2<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/* \u7cfb\u7edf\u65f6\u949f\u914d\u7f6e\u51fd\u6570 *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">SystemClock_Config<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  RCC_OscInitTypeDef RCC_OscInitStruct <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  RCC_ClkInitTypeDef RCC_ClkInitStruct <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/* \u914d\u7f6e\u5916\u90e8\u6676\u632fHSE *\/<\/span><br \/>\n  RCC_OscInitStruct<span class=\"token punctuation\">.<\/span>OscillatorType <span class=\"token operator\">&#061;<\/span> RCC_OSCILLATORTYPE_HSE<span class=\"token punctuation\">;<\/span><br \/>\n  RCC_OscInitStruct<span class=\"token punctuation\">.<\/span>HSEState <span class=\"token operator\">&#061;<\/span> RCC_HSE_ON<span class=\"token punctuation\">;<\/span><br \/>\n  RCC_OscInitStruct<span class=\"token punctuation\">.<\/span>HSEPredivValue <span class=\"token operator\">&#061;<\/span> RCC_HSE_PREDIV_DIV1<span class=\"token punctuation\">;<\/span><br \/>\n  RCC_OscInitStruct<span class=\"token punctuation\">.<\/span>PLL<span class=\"token punctuation\">.<\/span>PLLState <span class=\"token operator\">&#061;<\/span> RCC_PLL_ON<span class=\"token punctuation\">;<\/span><br \/>\n  RCC_OscInitStruct<span class=\"token punctuation\">.<\/span>PLL<span class=\"token punctuation\">.<\/span>PLLSource <span class=\"token operator\">&#061;<\/span> RCC_PLLSOURCE_HSE<span class=\"token punctuation\">;<\/span><br \/>\n  RCC_OscInitStruct<span class=\"token punctuation\">.<\/span>PLL<span class=\"token punctuation\">.<\/span>PLLMUL <span class=\"token operator\">&#061;<\/span> RCC_PLL_MUL9<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">HAL_RCC_OscConfig<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>RCC_OscInitStruct<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> HAL_OK<span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">Error_Handler<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token comment\">\/* \u914d\u7f6e\u7cfb\u7edf\u65f6\u949f\u603b\u7ebf *\/<\/span><br \/>\n  RCC_ClkInitStruct<span class=\"token punctuation\">.<\/span>ClockType <span class=\"token operator\">&#061;<\/span> RCC_CLOCKTYPE_HCLK<span class=\"token operator\">|<\/span>RCC_CLOCKTYPE_SYSCLK<br \/>\n                              <span class=\"token operator\">|<\/span>RCC_CLOCKTYPE_PCLK1<span class=\"token operator\">|<\/span>RCC_CLOCKTYPE_PCLK2<span class=\"token punctuation\">;<\/span><br \/>\n  RCC_ClkInitStruct<span class=\"token punctuation\">.<\/span>SYSCLKSource <span class=\"token operator\">&#061;<\/span> RCC_SYSCLKSOURCE_PLLCLK<span class=\"token punctuation\">;<\/span><br \/>\n  RCC_ClkInitStruct<span class=\"token punctuation\">.<\/span>AHBCLKDivider <span class=\"token operator\">&#061;<\/span> RCC_SYSCLK_DIV1<span class=\"token punctuation\">;<\/span><br \/>\n  RCC_ClkInitStruct<span class=\"token punctuation\">.<\/span>APB1CLKDivider <span class=\"token operator\">&#061;<\/span> RCC_HCLK_DIV2<span class=\"token punctuation\">;<\/span><br \/>\n  RCC_ClkInitStruct<span class=\"token punctuation\">.<\/span>APB2CLKDivider <span class=\"token operator\">&#061;<\/span> RCC_HCLK_DIV1<span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">HAL_RCC_ClockConfig<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>RCC_ClkInitStruct<span class=\"token punctuation\">,<\/span> FLASH_LATENCY_2<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> HAL_OK<span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">Error_Handler<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/* I2C1\u521d\u59cb\u5316\u51fd\u6570 *\/<\/span><br \/>\n<span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">MX_I2C1_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  hi2c1<span class=\"token punctuation\">.<\/span>Instance <span class=\"token operator\">&#061;<\/span> I2C1<span class=\"token punctuation\">;<\/span><br \/>\n  hi2c1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>ClockSpeed <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">100000<\/span><span class=\"token punctuation\">;<\/span>        <span class=\"token comment\">\/\/ 100kHz\u6807\u51c6\u6a21\u5f0f<\/span><br \/>\n  hi2c1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>DutyCycle <span class=\"token operator\">&#061;<\/span> I2C_DUTYCYCLE_2<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ 50%\u5360\u7a7a\u6bd4<\/span><br \/>\n  hi2c1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>OwnAddress1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  hi2c1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>AddressingMode <span class=\"token operator\">&#061;<\/span> I2C_ADDRESSINGMODE_7BIT<span class=\"token punctuation\">;<\/span><br \/>\n  hi2c1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>DualAddressMode <span class=\"token operator\">&#061;<\/span> I2C_DUALADDRESS_DISABLE<span class=\"token punctuation\">;<\/span><br \/>\n  hi2c1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>OwnAddress2 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  hi2c1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>GeneralCallMode <span class=\"token operator\">&#061;<\/span> I2C_GENERALCALL_DISABLE<span class=\"token punctuation\">;<\/span><br \/>\n  hi2c1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>NoStretchMode <span class=\"token operator\">&#061;<\/span> I2C_NOSTRETCH_DISABLE<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">HAL_I2C_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>hi2c1<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> HAL_OK<span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">Error_Handler<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/* TIM2\u521d\u59cb\u5316\u51fd\u6570&#xff08;10ms\u5b9a\u65f6\u4e2d\u65ad&#xff09; *\/<\/span><br \/>\n<span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">MX_TIM2_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  TIM_ClockConfigTypeDef sClockSourceConfig <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  TIM_MasterConfigTypeDef sMasterConfig <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  htim2<span class=\"token punctuation\">.<\/span>Instance <span class=\"token operator\">&#061;<\/span> TIM2<span class=\"token punctuation\">;<\/span><br \/>\n  htim2<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>Prescaler <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">71<\/span><span class=\"token punctuation\">;<\/span>            <span class=\"token comment\">\/\/ \u9884\u5206\u9891\u566871&#xff0c;\u8ba1\u6570\u9891\u73871MHz<\/span><br \/>\n  htim2<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>CounterMode <span class=\"token operator\">&#061;<\/span> TIM_COUNTERMODE_UP<span class=\"token punctuation\">;<\/span><br \/>\n  htim2<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>Period <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">9999<\/span><span class=\"token punctuation\">;<\/span>             <span class=\"token comment\">\/\/ \u81ea\u52a8\u91cd\u88c5\u503c9999&#xff0c;\u5b9a\u65f610ms<\/span><br \/>\n  htim2<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>ClockDivision <span class=\"token operator\">&#061;<\/span> TIM_CLOCKDIVISION_DIV1<span class=\"token punctuation\">;<\/span><br \/>\n  htim2<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>AutoReloadPreload <span class=\"token operator\">&#061;<\/span> TIM_AUTORELOAD_PRELOAD_ENABLE<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">HAL_TIM_Base_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>htim2<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> HAL_OK<span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">Error_Handler<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  sClockSourceConfig<span class=\"token punctuation\">.<\/span>ClockSource <span class=\"token operator\">&#061;<\/span> TIM_CLOCKSOURCE_INTERNAL<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">HAL_TIM_ConfigClockSource<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>htim2<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>sClockSourceConfig<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> HAL_OK<span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">Error_Handler<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  sMasterConfig<span class=\"token punctuation\">.<\/span>MasterOutputTrigger <span class=\"token operator\">&#061;<\/span> TIM_TRGO_RESET<span class=\"token punctuation\">;<\/span><br \/>\n  sMasterConfig<span class=\"token punctuation\">.<\/span>MasterSlaveMode <span class=\"token operator\">&#061;<\/span> TIM_MASTERSLAVEMODE_DISABLE<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">HAL_TIMEx_MasterConfigSynchronization<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>htim2<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>sMasterConfig<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> HAL_OK<span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">Error_Handler<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ \u542f\u52a8TIM2\u4e2d\u65ad<\/span><br \/>\n  <span class=\"token function\">HAL_TIM_Base_Start_IT<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>htim2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/* GPIO\u521d\u59cb\u5316\u51fd\u6570 *\/<\/span><br \/>\n<span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">MX_GPIO_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  GPIO_InitTypeDef GPIO_InitStruct <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/* \u4f7f\u80fdGPIOA\u65f6\u949f *\/<\/span><br \/>\n  <span class=\"token function\">__HAL_RCC_GPIOA_CLK_ENABLE<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token comment\">\/* \u4f7f\u80fdGPIOB\u65f6\u949f&#xff08;I2C\u5f15\u811a&#xff09; *\/<\/span><br \/>\n  <span class=\"token function\">__HAL_RCC_GPIOB_CLK_ENABLE<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/* \u914d\u7f6e\u62a5\u8b66\u6a21\u5757\u5f15\u811a *\/<\/span><br \/>\n  GPIO_InitStruct<span class=\"token punctuation\">.<\/span>Pin <span class=\"token operator\">&#061;<\/span> BUZZER_PIN<span class=\"token operator\">|<\/span>LED_GREEN_PIN<span class=\"token operator\">|<\/span>LED_RED_PIN<span class=\"token punctuation\">;<\/span><br \/>\n  GPIO_InitStruct<span class=\"token punctuation\">.<\/span>Mode <span class=\"token operator\">&#061;<\/span> GPIO_MODE_OUTPUT_PP<span class=\"token punctuation\">;<\/span><br \/>\n  GPIO_InitStruct<span class=\"token punctuation\">.<\/span>Pull <span class=\"token operator\">&#061;<\/span> GPIO_NOPULL<span class=\"token punctuation\">;<\/span><br \/>\n  GPIO_InitStruct<span class=\"token punctuation\">.<\/span>Speed <span class=\"token operator\">&#061;<\/span> GPIO_SPEED_FREQ_HIGH<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">HAL_GPIO_Init<\/span><span class=\"token punctuation\">(<\/span>GPIOA<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>GPIO_InitStruct<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/* \u521d\u59cb\u72b6\u6001&#xff1a;\u8702\u9e23\u5668\u5173\u95ed&#xff0c;LED\u7184\u706d *\/<\/span><br \/>\n  <span class=\"token function\">HAL_GPIO_WritePin<\/span><span class=\"token punctuation\">(<\/span>BUZZER_GPIO_PORT<span class=\"token punctuation\">,<\/span> BUZZER_PIN<span class=\"token punctuation\">,<\/span> GPIO_PIN_SET<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">HAL_GPIO_WritePin<\/span><span class=\"token punctuation\">(<\/span>LED_GREEN_GPIO_PORT<span class=\"token punctuation\">,<\/span> LED_GREEN_PIN<span class=\"token punctuation\">,<\/span> GPIO_PIN_RESET<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">HAL_GPIO_WritePin<\/span><span class=\"token punctuation\">(<\/span>LED_RED_GPIO_PORT<span class=\"token punctuation\">,<\/span> LED_RED_PIN<span class=\"token punctuation\">,<\/span> GPIO_PIN_RESET<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/* \u9519\u8bef\u5904\u7406\u51fd\u6570&#xff08;\u6b7b\u5faa\u73af&#xff09; *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">Error_Handler<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">__disable_irq<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u51fa\u9519\u65f6\u7ea2\u8272LED\u5feb\u901f\u95ea\u70c1&#xff08;100ms\u4e00\u6b21&#xff09;<\/span><br \/>\n    <span class=\"token function\">HAL_GPIO_TogglePin<\/span><span class=\"token punctuation\">(<\/span>LED_RED_GPIO_PORT<span class=\"token punctuation\">,<\/span> LED_RED_PIN<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">HAL_Delay<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">ifdef<\/span> <span class=\"token expression\">USE_FULL_ASSERT<\/span><\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">assert_failed<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> <span class=\"token operator\">*<\/span>file<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint32_t<\/span> line<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token comment\">\/\/ \u65ad\u8a00\u5931\u8d25\u5904\u7406&#xff08;\u53ef\u9009\u6dfb\u52a0\u4e32\u53e3\u6253\u5370&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">endif<\/span> <span class=\"token comment\">\/* USE_FULL_ASSERT *\/<\/span><\/span><\/p>\n<h4>4.3 MAX30102\u4f20\u611f\u5668\u9a71\u52a8\u51fd\u6570&#xff08;main.c\u7eed&#xff09;<\/h4>\n<p><span class=\"token comment\">\/* MAX30102\u5199\u5bc4\u5b58\u5668\u51fd\u6570 *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">MAX30102_WriteReg<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> reg_addr<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint8_t<\/span> data<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> tx_data<span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span>reg_addr<span class=\"token punctuation\">,<\/span> data<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token comment\">\/\/ I2C\u5199\u64cd\u4f5c&#xff1a;\u5730\u5740&#043;\u5bc4\u5b58\u5668&#043;\u6570\u636e<\/span><br \/>\n  <span class=\"token function\">HAL_I2C_Master_Transmit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>hi2c1<span class=\"token punctuation\">,<\/span> MAX30102_I2C_ADDR<span class=\"token punctuation\">,<\/span> tx_data<span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/* MAX30102\u8bfb\u5bc4\u5b58\u5668\u51fd\u6570 *\/<\/span><br \/>\n<span class=\"token class-name\">uint8_t<\/span> <span class=\"token function\">MAX30102_ReadReg<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> reg_addr<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> rx_data <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token comment\">\/\/ \u5148\u53d1\u9001\u5bc4\u5b58\u5668\u5730\u5740<\/span><br \/>\n  <span class=\"token function\">HAL_I2C_Master_Transmit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>hi2c1<span class=\"token punctuation\">,<\/span> MAX30102_I2C_ADDR<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>reg_addr<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token comment\">\/\/ \u518d\u8bfb\u53d6\u5bc4\u5b58\u5668\u6570\u636e<\/span><br \/>\n  <span class=\"token function\">HAL_I2C_Master_Receive<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>hi2c1<span class=\"token punctuation\">,<\/span> MAX30102_I2C_ADDR<span class=\"token operator\">&#043;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>rx_data<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">return<\/span> rx_data<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/* MAX30102\u521d\u59cb\u5316\u51fd\u6570&#xff08;\u914d\u7f6e\u4e3a\u5fc3\u7387\u76d1\u6d4b\u6a21\u5f0f&#xff09; *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">MAX30102_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token comment\">\/\/ 1. \u8f6f\u590d\u4f4d\u4f20\u611f\u5668<\/span><br \/>\n  <span class=\"token function\">MAX30102_WriteReg<\/span><span class=\"token punctuation\">(<\/span>MAX30102_REG_MODE_CONFIG<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0x40<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">HAL_Delay<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ 2. \u5173\u95ed\u6240\u6709\u4e2d\u65ad<\/span><br \/>\n  <span class=\"token function\">MAX30102_WriteReg<\/span><span class=\"token punctuation\">(<\/span>MAX30102_REG_INT_ENABLE1<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0x00<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ 3. \u914d\u7f6eFIFO\u6307\u9488&#xff08;\u5199\u6307\u9488\u3001\u8bfb\u6307\u9488\u3001\u6ea2\u51fa\u8ba1\u6570\u5668\u6e05\u96f6&#xff09;<\/span><br \/>\n  <span class=\"token function\">MAX30102_WriteReg<\/span><span class=\"token punctuation\">(<\/span>MAX30102_REG_FIFO_WR_PTR<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0x00<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">MAX30102_WriteReg<\/span><span class=\"token punctuation\">(<\/span>MAX30102_REG_OVF_COUNTER<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0x00<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">MAX30102_WriteReg<\/span><span class=\"token punctuation\">(<\/span>MAX30102_REG_FIFO_RD_PTR<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0x00<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ 4. \u914d\u7f6e\u6a21\u5f0f&#xff1a;\u5fc3\u7387\u76d1\u6d4b\u6a21\u5f0f&#xff08;\u4ec5\u542f\u7528\u7ea2\u5916LED&#xff09;<\/span><br \/>\n  <span class=\"token function\">MAX30102_WriteReg<\/span><span class=\"token punctuation\">(<\/span>MAX30102_REG_MODE_CONFIG<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0x02<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ 5. \u914d\u7f6e\u91c7\u6837\u7387\u548c\u5206\u8fa8\u7387&#xff1a;100Hz\u91c7\u6837\u7387&#xff0c;18\u4f4d\u5206\u8fa8\u7387<\/span><br \/>\n  <span class=\"token function\">MAX30102_WriteReg<\/span><span class=\"token punctuation\">(<\/span>MAX30102_REG_SPO2_CONFIG<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0x27<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ 6. \u8bbe\u7f6e\u7ea2\u5916LED\u529f\u7387&#xff08;\u4e2d\u7b49\u529f\u7387&#xff0c;\u907f\u514d\u8fc7\u4eae&#xff09;<\/span><br \/>\n  <span class=\"token function\">MAX30102_WriteReg<\/span><span class=\"token punctuation\">(<\/span>MAX30102_REG_LED1_PA<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0x1F<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">MAX30102_WriteReg<\/span><span class=\"token punctuation\">(<\/span>MAX30102_REG_LED2_PA<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0x00<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5173\u95ed\u7ea2\u5149LED<\/span><\/p>\n<p>  <span class=\"token function\">HAL_Delay<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">200<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u7b49\u5f85\u4f20\u611f\u5668\u7a33\u5b9a<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/* \u8bfb\u53d6MAX30102 FIFO\u4e2d\u7684PPG\u6570\u636e&#xff08;\u4ec5\u7ea2\u5916\u901a\u9053&#xff09; *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">MAX30102_ReadFIFO<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint16_t<\/span> <span class=\"token operator\">*<\/span>ir_data<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> fifo_data<span class=\"token punctuation\">[<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> rd_ptr <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">MAX30102_ReadReg<\/span><span class=\"token punctuation\">(<\/span>MAX30102_REG_FIFO_RD_PTR<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> wr_ptr <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">MAX30102_ReadReg<\/span><span class=\"token punctuation\">(<\/span>MAX30102_REG_FIFO_WR_PTR<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ \u4ec5\u5f53FIFO\u6709\u6570\u636e\u65f6\u8bfb\u53d6<\/span><br \/>\n  <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>wr_ptr <span class=\"token operator\">!&#061;<\/span> rd_ptr<span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8bfb\u53d6FIFO\u6570\u636e\u5bc4\u5b58\u5668&#xff08;3\u5b57\u8282&#xff0c;18\u4f4d\u6570\u636e&#xff09;<\/span><br \/>\n    <span class=\"token function\">HAL_I2C_Master_Transmit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>hi2c1<span class=\"token punctuation\">,<\/span> MAX30102_I2C_ADDR<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>MAX30102_REG_FIFO_DATA<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">HAL_I2C_Master_Receive<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>hi2c1<span class=\"token punctuation\">,<\/span> MAX30102_I2C_ADDR<span class=\"token operator\">&#043;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> fifo_data<span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u89e3\u679018\u4f4d\u6570\u636e&#xff08;\u4ec5\u53d6\u9ad816\u4f4d&#xff0c;\u4f4e2\u4f4d\u820d\u53bb&#xff09;<\/span><br \/>\n    <span class=\"token operator\">*<\/span>ir_data <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint16_t<\/span><span class=\"token punctuation\">)<\/span>fifo_data<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token number\">8<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">|<\/span> fifo_data<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u79fb\u52a8\u8bfb\u6307\u9488<\/span><br \/>\n    <span class=\"token function\">MAX30102_WriteReg<\/span><span class=\"token punctuation\">(<\/span>MAX30102_REG_FIFO_RD_PTR<span class=\"token punctuation\">,<\/span> rd_ptr<span class=\"token operator\">&#043;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token keyword\">else<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token operator\">*<\/span>ir_data <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>4.4 \u5fc3\u7387\u8ba1\u7b97\u4e0e\u6ee4\u6ce2\u51fd\u6570&#xff08;main.c\u7eed&#xff09;<\/h4>\n<p><span class=\"token comment\">\/* PPG\u539f\u59cb\u6570\u636e\u6ee4\u6ce2&#xff08;\u6ed1\u52a8\u5e73\u5747\u6ee4\u6ce2&#xff0c;\u53bb\u9664\u9ad8\u9891\u566a\u58f0&#xff09; *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">PPG_Data_Filter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint16_t<\/span> raw_data<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint16_t<\/span> <span class=\"token operator\">*<\/span>filtered_data<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">uint16_t<\/span> filter_buf<span class=\"token punctuation\">[<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ 5\u70b9\u6ed1\u52a8\u7a97\u53e3<\/span><br \/>\n  <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">uint8_t<\/span> filter_index <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token class-name\">uint32_t<\/span> sum <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ \u5c06\u65b0\u6570\u636e\u5b58\u5165\u6ee4\u6ce2\u7f13\u51b2\u533a<\/span><br \/>\n  filter_buf<span class=\"token punctuation\">[<\/span>filter_index<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> raw_data<span class=\"token punctuation\">;<\/span><br \/>\n  filter_index <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>filter_index <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">%<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ \u8ba1\u7b97\u5e73\u5747\u503c<\/span><br \/>\n  <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> i<span class=\"token operator\">&#061;<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&lt;<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    sum <span class=\"token operator\">&#043;&#061;<\/span> filter_buf<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token operator\">*<\/span>filtered_data <span class=\"token operator\">&#061;<\/span> sum <span class=\"token operator\">\/<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/* \u5fc3\u7387\u8ba1\u7b97\u51fd\u6570&#xff08;\u5cf0\u503c\u68c0\u6d4b\u6cd5&#xff09; *\/<\/span><br \/>\n<span class=\"token class-name\">uint32_t<\/span> <span class=\"token function\">Calculate_HeartRate<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint16_t<\/span> <span class=\"token operator\">*<\/span>filtered_data<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint8_t<\/span> data_len<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> peak_count <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>        <span class=\"token comment\">\/\/ \u5cf0\u503c\u6570\u91cf<\/span><br \/>\n  <span class=\"token class-name\">uint16_t<\/span> threshold <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>        <span class=\"token comment\">\/\/ \u5cf0\u503c\u68c0\u6d4b\u9608\u503c<\/span><br \/>\n  <span class=\"token class-name\">uint32_t<\/span> total_interval <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/ \u603b\u5cf0\u95f4\u95f4\u9694<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> last_peak_index <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/ \u4e0a\u4e00\u4e2a\u5cf0\u503c\u7d22\u5f15<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ 1. \u8ba1\u7b97\u6570\u636e\u5e73\u5747\u503c\u4f5c\u4e3a\u9608\u503c&#xff08;\u81ea\u9002\u5e94\u9608\u503c&#xff09;<\/span><br \/>\n  <span class=\"token class-name\">uint32_t<\/span> sum <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> i<span class=\"token operator\">&#061;<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&lt;<\/span>data_len<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    sum <span class=\"token operator\">&#043;&#061;<\/span> filtered_data<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n  threshold <span class=\"token operator\">&#061;<\/span> sum <span class=\"token operator\">\/<\/span> data_len <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">50<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u9608\u503c&#061;\u5e73\u5747\u503c&#043;50&#xff08;\u907f\u514d\u8bef\u68c0\u6d4b&#xff09;<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ 2. \u5cf0\u503c\u68c0\u6d4b&#xff08;\u5f53\u524d\u70b9&gt;\u9608\u503c&#xff0c;\u4e14\u5927\u4e8e\u524d\u540e\u70b9&#xff09;<\/span><br \/>\n  <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> i<span class=\"token operator\">&#061;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&lt;<\/span>data_len<span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>filtered_data<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&gt;<\/span> threshold<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;&amp;<\/span><br \/>\n       <span class=\"token punctuation\">(<\/span>filtered_data<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&gt;<\/span> filtered_data<span class=\"token punctuation\">[<\/span>i<span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;&amp;<\/span><br \/>\n       <span class=\"token punctuation\">(<\/span>filtered_data<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&gt;<\/span> filtered_data<span class=\"token punctuation\">[<\/span>i<span class=\"token operator\">&#043;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n      peak_count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>peak_count <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n      <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u8ba1\u7b97\u5cf0\u95f4\u95f4\u9694&#xff08;\u5355\u4f4d&#xff1a;10ms&#xff0c;\u56e0\u4e3a\u91c7\u6837\u95f4\u969410ms&#xff09;<\/span><br \/>\n        total_interval <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">&#8211;<\/span> last_peak_index<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><br \/>\n      last_peak_index <span class=\"token operator\">&#061;<\/span> i<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ 3. \u8ba1\u7b97\u5fc3\u7387&#xff08;BPM &#061; 60000 \/ \u5e73\u5747\u5cf0\u95f4\u95f4\u9694&#xff09;<\/span><br \/>\n  <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>peak_count <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">uint32_t<\/span> avg_interval <span class=\"token operator\">&#061;<\/span> total_interval <span class=\"token operator\">\/<\/span> <span class=\"token punctuation\">(<\/span>peak_count <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">60000<\/span> <span class=\"token operator\">\/<\/span> avg_interval<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token keyword\">else<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5cf0\u503c\u4e0d\u8db3&#xff0c;\u65e0\u6cd5\u8ba1\u7b97<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>4.5 OLED\u663e\u793a\u9a71\u52a8\u51fd\u6570&#xff08;main.c\u7eed&#xff09;<\/h4>\n<p><span class=\"token comment\">\/* OLED\u5199\u547d\u4ee4\u51fd\u6570 *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> cmd<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> tx_data<span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0x00<\/span><span class=\"token punctuation\">,<\/span> cmd<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ 0x00&#061;\u547d\u4ee4\u6807\u5fd7<\/span><br \/>\n  <span class=\"token function\">HAL_I2C_Master_Transmit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>hi2c1<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0x78<\/span><span class=\"token punctuation\">,<\/span> tx_data<span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/* OLED\u5199\u6570\u636e\u51fd\u6570 *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">OLED_WriteData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> data<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> tx_data<span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0x40<\/span><span class=\"token punctuation\">,<\/span> data<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ 0x40&#061;\u6570\u636e\u6807\u5fd7<\/span><br \/>\n  <span class=\"token function\">HAL_I2C_Master_Transmit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>hi2c1<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0x78<\/span><span class=\"token punctuation\">,<\/span> tx_data<span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/* OLED\u521d\u59cb\u5316\u51fd\u6570 *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">OLED_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">HAL_Delay<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4e0a\u7535\u5ef6\u65f6<\/span><\/p>\n<p>  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xAE<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5173\u95ed\u663e\u793a<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0x00<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u5217\u8d77\u59cb\u5730\u5740\u4f4e4\u4f4d<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0x10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u5217\u8d77\u59cb\u5730\u5740\u9ad84\u4f4d<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0x40<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u884c\u8d77\u59cb\u5730\u5740<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xB0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u9875\u5730\u5740<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0x81<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5bf9\u6bd4\u5ea6\u8bbe\u7f6e<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xFF<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6700\u5927\u5bf9\u6bd4\u5ea6<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xA1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6bb5\u91cd\u6620\u5c04&#xff08;\u6b63\u5e38\u663e\u793a&#xff09;<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xA6<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6b63\u5e38\u663e\u793a&#xff08;\u975e\u53cd\u8272&#xff09;<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xA8<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u591a\u8def\u590d\u7528\u7387<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0x3F<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ 64\u884c<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xC8<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ COM\u626b\u63cf\u65b9\u5411&#xff08;\u53cd\u5411&#xff09;<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xD3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u663e\u793a\u504f\u79fb<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0x00<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u65e0\u504f\u79fb<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xD5<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u65f6\u949f\u5206\u9891<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0x80<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u9ed8\u8ba4\u503c<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xD9<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u9884\u5145\u7535\u5468\u671f<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xF1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u589e\u5f3a\u5bf9\u6bd4\u5ea6<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xDA<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ COM\u5f15\u811a\u914d\u7f6e<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0x12<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xDB<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ VCOMH\u7535\u538b<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0x40<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0x8D<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u7535\u8377\u6cf5\u4f7f\u80fd<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0x14<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4f7f\u80fd<\/span><br \/>\n  <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xAF<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5f00\u542f\u663e\u793a<\/span><\/p>\n<p>  <span class=\"token function\">OLED_Clear<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6e05\u5c4f<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/* OLED\u6e05\u5c4f\u51fd\u6570 *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">OLED_Clear<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> i<span class=\"token punctuation\">,<\/span> j<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token operator\">&#061;<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&lt;<\/span><span class=\"token number\">8<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xB0<\/span> <span class=\"token operator\">&#043;<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u9875\u5730\u5740<\/span><br \/>\n    <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0x00<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>     <span class=\"token comment\">\/\/ \u5217\u4f4e\u5730\u5740<\/span><br \/>\n    <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0x10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>     <span class=\"token comment\">\/\/ \u5217\u9ad8\u5730\u5740<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span>j<span class=\"token operator\">&#061;<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> j<span class=\"token operator\">&lt;<\/span><span class=\"token number\">128<\/span><span class=\"token punctuation\">;<\/span> j<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token function\">OLED_WriteData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0x00<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5199\u7a7a\u6570\u636e<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/* OLED\u663e\u793a\u5b57\u7b26\u4e32\u51fd\u6570&#xff08;8*16\u5b57\u4f53&#xff09; *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">OLED_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> x<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint8_t<\/span> y<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint8_t<\/span> <span class=\"token operator\">*<\/span>str<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span>str<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token char\">&#039;\\\\0&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5b57\u7b26\u504f\u79fb&#xff1a;ASCII\u7801-32&#xff08;\u9002\u914d8*16\u5b57\u5e93&#xff09;<\/span><br \/>\n    <span class=\"token class-name\">uint8_t<\/span> chr <span class=\"token operator\">&#061;<\/span> str<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">32<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> j<span class=\"token operator\">&#061;<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> j<span class=\"token operator\">&lt;<\/span><span class=\"token number\">8<\/span><span class=\"token punctuation\">;<\/span> j<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token comment\">\/\/ \u5b9a\u4f4d&#xff1a;x\u5217&#xff0c;y\u9875<\/span><br \/>\n      <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xB0<\/span> <span class=\"token operator\">&#043;<\/span> y<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>x <span class=\"token operator\">&amp;<\/span> <span class=\"token number\">0x0F<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token function\">OLED_WriteCmd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>x <span class=\"token operator\">&gt;&gt;<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;<\/span> <span class=\"token number\">0x0F<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">|<\/span> <span class=\"token number\">0x10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token comment\">\/\/ \u4ece\u5b57\u5e93\u53d6\u6570\u636e&#xff08;\u6b64\u5904\u7b80\u5316&#xff0c;\u4f7f\u7528\u9ed8\u8ba4\u5b57\u5e93\u6620\u5c04&#xff09;<\/span><br \/>\n      <span class=\"token comment\">\/\/ \u5b9e\u9645\u9700\u6dfb\u52a08*16\u5b57\u5e93\u6570\u7ec4&#xff0c;\u6b64\u5904\u7528\u6d4b\u8bd5\u6570\u636e\u6f14\u793a<\/span><br \/>\n      <span class=\"token function\">OLED_WriteData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0xFF<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      x <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token number\">8<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5b57\u7b26\u5bbd\u5ea68\u50cf\u7d20<\/span><br \/>\n      <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>x <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">128<\/span><span class=\"token punctuation\">)<\/span><br \/>\n      <span class=\"token punctuation\">{<\/span><br \/>\n        x <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        y<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/* OLED\u663e\u793a\u6570\u5b57\u51fd\u6570 *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">OLED_ShowNum<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> x<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint8_t<\/span> y<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint32_t<\/span> num<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint8_t<\/span> len<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> buf<span class=\"token punctuation\">[<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token comment\">\/\/ \u6570\u5b57\u8f6c\u5b57\u7b26\u4e32<\/span><br \/>\n  <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span>len<span class=\"token operator\">&#8212;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    buf<span class=\"token punctuation\">[<\/span>i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> num <span class=\"token operator\">%<\/span> <span class=\"token number\">10<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token char\">&#039;0&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    num <span class=\"token operator\">\/&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token comment\">\/\/ \u9006\u5e8f\u663e\u793a<\/span><br \/>\n  <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> j<span class=\"token operator\">&#061;<\/span>i<span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> j<span class=\"token operator\">&gt;&#061;<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> j<span class=\"token operator\">&#8212;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">OLED_ShowString<\/span><span class=\"token punctuation\">(<\/span>x<span class=\"token punctuation\">,<\/span> y<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>buf<span class=\"token punctuation\">[<\/span>j<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    x <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token number\">8<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/* OLED\u663e\u793a\u5fc3\u7387\u4fe1\u606f\u51fd\u6570 *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">OLED_ShowHeartRate<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint32_t<\/span> bpm<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">uint8_t<\/span> status<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">OLED_Clear<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6e05\u5c4f<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ \u663e\u793a\u6807\u9898<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> title<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Heart Rate Monitor&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">OLED_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> title<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ \u663e\u793a\u5fc3\u7387\u6570\u503c<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> bpm_str<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;BPM: &#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">OLED_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> bpm_str<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">OLED_ShowNum<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">32<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> bpm<span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ \u663e\u793a\u5fc3\u7387\u72b6\u6001<\/span><br \/>\n  <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>status <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">uint8_t<\/span> normal_str<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Status: Normal&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">OLED_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span> normal_str<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>status <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">uint8_t<\/span> low_str<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Status: Too Low&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">OLED_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span> low_str<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>status <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">uint8_t<\/span> high_str<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Status: Too High&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">OLED_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span> high_str<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ \u663e\u793a\u9608\u503c\u63d0\u793a<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> threshold_str<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Range: 50-120 BPM&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">OLED_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">6<\/span><span class=\"token punctuation\">,<\/span> threshold_str<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>4.6 \u62a5\u8b66\u63a7\u5236\u4e0e\u5b9a\u65f6\u4e2d\u65ad\u51fd\u6570&#xff08;main.c\u7eed&#xff09;<\/h4>\n<p><span class=\"token comment\">\/* \u62a5\u8b66\u63a7\u5236\u51fd\u6570 *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">Alarm_Control<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> status<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">switch<\/span><span class=\"token punctuation\">(<\/span>status<span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">case<\/span> <span class=\"token number\">0<\/span><span class=\"token operator\">:<\/span> <span class=\"token comment\">\/\/ \u6b63\u5e38&#xff1a;\u5173\u95ed\u8702\u9e23\u5668&#xff0c;\u7eff\u706f\u5e38\u4eae&#xff0c;\u7ea2\u706f\u7184\u706d<\/span><br \/>\n      <span class=\"token function\">HAL_GPIO_WritePin<\/span><span class=\"token punctuation\">(<\/span>BUZZER_GPIO_PORT<span class=\"token punctuation\">,<\/span> BUZZER_PIN<span class=\"token punctuation\">,<\/span> GPIO_PIN_SET<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token function\">HAL_GPIO_WritePin<\/span><span class=\"token punctuation\">(<\/span>LED_GREEN_GPIO_PORT<span class=\"token punctuation\">,<\/span> LED_GREEN_PIN<span class=\"token punctuation\">,<\/span> GPIO_PIN_SET<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token function\">HAL_GPIO_WritePin<\/span><span class=\"token punctuation\">(<\/span>LED_RED_GPIO_PORT<span class=\"token punctuation\">,<\/span> LED_RED_PIN<span class=\"token punctuation\">,<\/span> GPIO_PIN_RESET<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      alarm_flag <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">case<\/span> <span class=\"token number\">1<\/span><span class=\"token operator\">:<\/span> <span class=\"token comment\">\/\/ \u8fc7\u4f4e\/\u8fc7\u9ad8&#xff1a;\u5f00\u542f\u8702\u9e23\u5668&#xff0c;\u7ea2\u706f\u95ea\u70c1&#xff0c;\u7eff\u706f\u7184\u706d<\/span><br \/>\n      <span class=\"token function\">HAL_GPIO_WritePin<\/span><span class=\"token punctuation\">(<\/span>BUZZER_GPIO_PORT<span class=\"token punctuation\">,<\/span> BUZZER_PIN<span class=\"token punctuation\">,<\/span> GPIO_PIN_RESET<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token function\">HAL_GPIO_WritePin<\/span><span class=\"token punctuation\">(<\/span>LED_GREEN_GPIO_PORT<span class=\"token punctuation\">,<\/span> LED_GREEN_PIN<span class=\"token punctuation\">,<\/span> GPIO_PIN_RESET<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token comment\">\/\/ \u7ea2\u706f\u95ea\u70c1&#xff08;\u7531\u5b9a\u65f6\u4e2d\u65ad\u63a7\u5236&#xff09;<\/span><br \/>\n      alarm_flag <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">default<\/span><span class=\"token operator\">:<\/span><br \/>\n      <span class=\"token function\">Alarm_Control<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/* TIM2\u5b9a\u65f6\u4e2d\u65ad\u56de\u8c03\u51fd\u6570&#xff08;10ms\u4e00\u6b21&#xff09; *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">HAL_TIM_PeriodElapsedCallback<\/span><span class=\"token punctuation\">(<\/span>TIM_HandleTypeDef <span class=\"token operator\">*<\/span>htim<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">uint8_t<\/span> blink_count <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token class-name\">uint16_t<\/span> raw_data <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token class-name\">uint16_t<\/span> filtered_data <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>htim<span class=\"token operator\">-&gt;<\/span>Instance <span class=\"token operator\">&#061;&#061;<\/span> TIM2<span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ 1. \u8bfb\u53d6PPG\u539f\u59cb\u6570\u636e<\/span><br \/>\n    <span class=\"token function\">MAX30102_ReadFIFO<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>raw_data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 2. \u6ee4\u6ce2\u5904\u7406<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>raw_data <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token function\">PPG_Data_Filter<\/span><span class=\"token punctuation\">(<\/span>raw_data<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>filtered_data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token comment\">\/\/ \u5b58\u5165\u73af\u5f62\u7f13\u51b2\u533a<\/span><br \/>\n      ppg_raw_data<span class=\"token punctuation\">[<\/span>ppg_data_index<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> filtered_data<span class=\"token punctuation\">;<\/span><br \/>\n      ppg_data_index <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>ppg_data_index <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">%<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u6bcf1\u79d2\u8ba1\u7b97\u4e00\u6b21\u5fc3\u7387&#xff08;100\u4e2a\u91c7\u6837\u70b9&#xff0c;10ms*100&#061;1000ms&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">uint8_t<\/span> sample_count <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    sample_count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>sample_count <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n      heart_rate <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">Calculate_HeartRate<\/span><span class=\"token punctuation\">(<\/span>ppg_raw_data<span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      sample_count <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>      <span class=\"token comment\">\/\/ 4. \u5224\u65ad\u5fc3\u7387\u72b6\u6001<\/span><br \/>\n      <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>heart_rate <span class=\"token operator\">&lt;<\/span> HEART_RATE_LOW_THRESHOLD <span class=\"token operator\">&amp;&amp;<\/span> heart_rate <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n      <span class=\"token punctuation\">{<\/span><br \/>\n        heart_rate_status <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8fc7\u4f4e<\/span><br \/>\n        <span class=\"token function\">Alarm_Control<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><br \/>\n      <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>heart_rate <span class=\"token operator\">&gt;<\/span> HEART_RATE_HIGH_THRESHOLD<span class=\"token punctuation\">)<\/span><br \/>\n      <span class=\"token punctuation\">{<\/span><br \/>\n        heart_rate_status <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8fc7\u9ad8<\/span><br \/>\n        <span class=\"token function\">Alarm_Control<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><br \/>\n      <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>heart_rate <span class=\"token operator\">&gt;&#061;<\/span> HEART_RATE_LOW_THRESHOLD <span class=\"token operator\">&amp;&amp;<\/span> heart_rate <span class=\"token operator\">&lt;&#061;<\/span> HEART_RATE_HIGH_THRESHOLD<span class=\"token punctuation\">)<\/span><br \/>\n      <span class=\"token punctuation\">{<\/span><br \/>\n        heart_rate_status <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6b63\u5e38<\/span><br \/>\n        <span class=\"token function\">Alarm_Control<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><\/p>\n<p>      <span class=\"token comment\">\/\/ 5. OLED\u5237\u65b0\u663e\u793a<\/span><br \/>\n      <span class=\"token function\">OLED_ShowHeartRate<\/span><span class=\"token punctuation\">(<\/span>heart_rate<span class=\"token punctuation\">,<\/span> heart_rate_status<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 6. \u62a5\u8b66\u65f6\u7ea2\u706f\u95ea\u70c1&#xff08;500ms\u4e00\u6b21&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>alarm_flag <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n      blink_count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>blink_count <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">50<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ 10ms*50&#061;500ms<\/span><br \/>\n      <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">HAL_GPIO_TogglePin<\/span><span class=\"token punctuation\">(<\/span>LED_RED_GPIO_PORT<span class=\"token punctuation\">,<\/span> LED_RED_PIN<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        blink_count <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>4.7 \u4e3b\u51fd\u6570&#xff08;main.c\u7eed&#xff09;<\/h4>\n<p><span class=\"token comment\">\/* \u4e3b\u51fd\u6570 *\/<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token comment\">\/* \u521d\u59cb\u5316HAL\u5e93 *\/<\/span><br \/>\n  <span class=\"token function\">HAL_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/* \u914d\u7f6e\u7cfb\u7edf\u65f6\u949f *\/<\/span><br \/>\n  <span class=\"token function\">SystemClock_Config<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/* \u521d\u59cb\u5316\u5916\u8bbe *\/<\/span><br \/>\n  <span class=\"token function\">MX_GPIO_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">MX_I2C1_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">MX_TIM2_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/* \u521d\u59cb\u5316\u4f20\u611f\u5668\u548c\u663e\u793a *\/<\/span><br \/>\n  <span class=\"token function\">MAX30102_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">OLED_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/* \u521d\u59cb\u663e\u793a\u6b22\u8fce\u754c\u9762 *\/<\/span><br \/>\n  <span class=\"token class-name\">uint8_t<\/span> welcome_str<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Welcome!&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">OLED_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">40<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span> welcome_str<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">HAL_Delay<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/* \u4e3b\u5faa\u73af&#xff08;\u4ec5\u5904\u7406\u5f02\u5e38\u515c\u5e95&#xff0c;\u6838\u5fc3\u903b\u8f91\u5728\u5b9a\u65f6\u4e2d\u65ad&#xff09; *\/<\/span><br \/>\n  <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u7a7a\u5faa\u73af&#xff0c;\u6240\u6709\u91c7\u6837\u548c\u8ba1\u7b97\u7531TIM2\u4e2d\u65ad\u5904\u7406<\/span><br \/>\n    <span class=\"token function\">HAL_Delay<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u4e94\u3001\u4ee3\u7801\u70e7\u5f55\u4e0e\u8c03\u8bd5<\/h3>\n<h4>5.1 \u4ee3\u7801\u7f16\u8bd1\u4e0e\u70e7\u5f55<\/h4>\n<li>\u4ee3\u7801\u8865\u5145&#xff1a;\u5c06\u4e0a\u8ff0\u6240\u6709\u4ee3\u7801\u6309\u6a21\u5757\u8865\u5145\u5230Keil\u5de5\u7a0b\u7684main.c\u548cmain.h\u4e2d&#xff0c;\u786e\u4fdd\u65e0\u9057\u6f0f\u3002<\/li>\n<li>\u7f16\u8bd1\u4ee3\u7801&#xff1a;\u70b9\u51fbKeil\u5de5\u5177\u680f\u7684\u201cBuild\u201d\u6309\u94ae&#xff0c;\u68c0\u67e5\u662f\u5426\u6709\u9519\u8bef&#xff08;Error&#xff09;\u548c\u8b66\u544a&#xff08;Warning&#xff09;&#xff0c;\u786e\u4fdd0 Error\u30010 Warning\u3002\n<ul>\n<li>\u82e5\u51fa\u73b0\u201cI2C\u76f8\u5173\u672a\u5b9a\u4e49\u201d\u9519\u8bef&#xff1a;\u68c0\u67e5STM32CubeMX\u662f\u5426\u6b63\u786e\u751f\u6210I2C\u521d\u59cb\u5316\u4ee3\u7801&#xff1b;<\/li>\n<li>\u82e5\u51fa\u73b0\u201cOLED\u5b57\u5e93\u201d\u9519\u8bef&#xff1a;\u5ffd\u7565&#xff08;\u6f14\u793a\u4ee3\u7801\u7b80\u5316\u4e86\u5b57\u5e93&#xff0c;\u5b9e\u9645\u9700\u6dfb\u52a08*16\u5b57\u5e93\u6570\u7ec4&#xff0c;\u53ef\u7f51\u4e0a\u4e0b\u8f7d\u901a\u7528\u5b57\u5e93&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u786c\u4ef6\u8fde\u63a5&#xff1a;\u5c06ST-Link\u4e0b\u8f7d\u5668\u8fde\u63a5\u5230STM32\u6700\u5c0f\u7cfb\u7edf\u677f\u7684SWD\u63a5\u53e3&#xff08;SWDIO\u3001SWCLK\u3001GND&#xff09;&#xff0c;\u5e76\u8fde\u63a5\u7535\u8111USB\u3002<\/li>\n<li>\u4ee3\u7801\u70e7\u5f55&#xff1a;\u70b9\u51fbKeil\u5de5\u5177\u680f\u7684\u201cDownload\u201d\u6309\u94ae&#xff0c;\u7b49\u5f85\u70e7\u5f55\u5b8c\u6210&#xff08;\u5e95\u90e8\u63d0\u793a\u201cDownload completed\u201d&#xff09;\u3002<\/li>\n<h4>5.2 \u786c\u4ef6\u8c03\u8bd5\u6b65\u9aa4<\/h4>\n<h5>\u6b65\u9aa41&#xff1a;\u7535\u6e90\u8c03\u8bd5<\/h5>\n<ul>\n<li>\u7ed9STM32\u6700\u5c0f\u7cfb\u7edf\u677f\u4f9b\u7535&#xff08;5V USB&#xff09;&#xff0c;\u6d4b\u91cfMAX30102\u4f20\u611f\u5668VCC\u5f15\u811a\u7535\u538b\u4e3a3.3V&#xff08;\u4e0d\u53ef\u63a55V&#xff0c;\u5426\u5219\u70e7\u6bc1\u4f20\u611f\u5668&#xff09;\u3002<\/li>\n<li>\u89c2\u5bdfOLED\u5c4f\u5e55&#xff1a;\u4e0a\u7535\u540e\u5148\u663e\u793a\u201cWelcome!\u201d&#xff0c;2\u79d2\u540e\u5207\u6362\u5230\u5fc3\u7387\u76d1\u6d4b\u754c\u9762&#xff0c;\u8bf4\u660e\u521d\u59cb\u5316\u6b63\u5e38\u3002<\/li>\n<\/ul>\n<h5>\u6b65\u9aa42&#xff1a;\u4f20\u611f\u5668\u8c03\u8bd5<\/h5>\n<ul>\n<li>\u5c06MAX30102\u4f20\u611f\u5668\u8d34\u5728\u624b\u6307\u4e0a&#xff08;\u6307\u5c16\u8d34\u5408\u4f20\u611f\u5668\u7684LED\u548c\u63a2\u6d4b\u5668\u533a\u57df&#xff09;&#xff0c;\u786e\u4fdd\u63a5\u89e6\u826f\u597d\u3002<\/li>\n<li>\u7528\u4e07\u7528\u8868\u6d4b\u91cfI2C\u603b\u7ebf&#xff08;PB6\u3001PB7&#xff09;\u7684\u7535\u5e73&#xff1a;\u5e94\u6709\u7a33\u5b9a\u76843.3V\u7535\u5e73&#xff0c;\u4e14\u6709\u6570\u636e\u4f20\u8f93\u65f6\u7535\u5e73\u6ce2\u52a8\u3002<\/li>\n<li>\u89c2\u5bdfPPG\u6570\u636e&#xff1a;\u901a\u8fc7Keil\u7684\u201cWatch &amp; Call Stack Window\u201d\u67e5\u770bppg_raw_data\u6570\u7ec4&#xff0c;\u5e94\u6709\u968f\u8109\u640f\u53d8\u5316\u7684\u6570\u503c&#xff08;\u8303\u56f4\u7ea61000-5000&#xff09;\u3002<\/li>\n<\/ul>\n<h5>\u6b65\u9aa43&#xff1a;\u5fc3\u7387\u8ba1\u7b97\u8c03\u8bd5<\/h5>\n<ul>\n<li>\u7b49\u5f851\u79d2\u540e&#xff0c;\u67e5\u770bheart_rate\u53d8\u91cf&#xff1a;\u6b63\u5e38\u9759\u606f\u5fc3\u7387\u5e94\u572860-100BPM\u4e4b\u95f4&#xff0c;\u6570\u503c\u968f\u5fc3\u8df3\u53d8\u5316\u3002<\/li>\n<li>\u82e5\u5fc3\u7387\u4e3a0&#xff1a;\u8c03\u6574Calculate_HeartRate\u51fd\u6570\u4e2d\u7684\u9608\u503c&#xff08;threshold &#061; sum \/ data_len &#043; 30&#xff09;&#xff0c;\u964d\u4f4e\u9608\u503c\u3002<\/li>\n<\/ul>\n<h5>\u6b65\u9aa44&#xff1a;\u62a5\u8b66\u529f\u80fd\u8c03\u8bd5<\/h5>\n<ul>\n<li>\u624b\u52a8\u4fee\u6539HEART_RATE_LOW_THRESHOLD\u4e3a80&#xff0c;\u4f7f\u5f53\u524d\u5fc3\u7387\u4f4e\u4e8e\u9608\u503c&#xff1a;\u89c2\u5bdf\u8702\u9e23\u5668\u53d1\u58f0\u3001\u7ea2\u8272LED\u95ea\u70c1\u3001\u7eff\u8272LED\u7184\u706d&#xff0c;OLED\u663e\u793a\u201cStatus: Too Low\u201d\u3002<\/li>\n<li>\u624b\u52a8\u4fee\u6539HEART_RATE_HIGH_THRESHOLD\u4e3a60&#xff0c;\u4f7f\u5f53\u524d\u5fc3\u7387\u9ad8\u4e8e\u9608\u503c&#xff1a;\u9a8c\u8bc1\u9ad8\u5fc3\u7387\u62a5\u8b66\u529f\u80fd\u3002<\/li>\n<li>\u6062\u590d\u9608\u503c\u540e&#xff0c;\u62a5\u8b66\u505c\u6b62&#xff0c;\u7eff\u8272LED\u5e38\u4eae&#xff0c;OLED\u663e\u793a\u201cStatus: Normal\u201d\u3002<\/li>\n<\/ul>\n<h4>5.3 \u5e38\u89c1\u95ee\u9898\u4e0e\u89e3\u51b3<\/h4>\n<table>\n<tr>\u95ee\u9898\u73b0\u8c61\u53ef\u80fd\u539f\u56e0\u89e3\u51b3\u65b9\u6cd5<\/tr>\n<tbody>\n<tr>\n<td>OLED\u5c4f\u5e55\u4e0d\u4eae<\/td>\n<td>I2C\u63a5\u7ebf\u9519\u8bef\u3001OLED\u672a\u4f9b\u7535<\/td>\n<td>\u68c0\u67e5PB6\/PB7\u63a5\u7ebf&#xff0c;\u6d4b\u91cfOLED VCC&#061;3.3V<\/td>\n<\/tr>\n<tr>\n<td>\u5fc3\u7387\u59cb\u7ec8\u4e3a0<\/td>\n<td>\u4f20\u611f\u5668\u672a\u8d34\u7d27\u624b\u6307\u3001\u9608\u503c\u8fc7\u9ad8<\/td>\n<td>\u7d27\u8d34\u624b\u6307&#xff0c;\u964d\u4f4e\u5cf0\u503c\u68c0\u6d4b\u9608\u503c<\/td>\n<\/tr>\n<tr>\n<td>\u8702\u9e23\u5668\u4e00\u76f4\u54cd<\/td>\n<td>\u62a5\u8b66\u6807\u5fd7\u672a\u6e05\u96f6\u3001GPIO\u7535\u5e73\u9519\u8bef<\/td>\n<td>\u68c0\u67e5Alarm_Control\u51fd\u6570&#xff0c;\u786e\u8ba4PB0\u521d\u59cb\u7535\u5e73\u4e3aHigh<\/td>\n<\/tr>\n<tr>\n<td>\u4f20\u611f\u5668\u65e0\u6570\u636e\u8f93\u51fa<\/td>\n<td>I2C\u5730\u5740\u9519\u8bef\u3001\u4f20\u611f\u5668\u672a\u521d\u59cb\u5316<\/td>\n<td>\u786e\u8ba4MAX30102 I2C\u5730\u5740\u4e3a0xAE&#xff0c;\u91cd\u65b0\u521d\u59cb\u5316\u4f20\u611f\u5668<\/td>\n<\/tr>\n<tr>\n<td>LED\u4e0d\u4eae<\/td>\n<td>GPIO\u63a5\u7ebf\u9519\u8bef\u3001\u9650\u6d41\u7535\u963b\u672a\u63a5<\/td>\n<td>\u68c0\u67e5PA1\/PA2\u63a5\u7ebf&#xff0c;\u6dfb\u52a0220\u03a9\u9650\u6d41\u7535\u963b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u516d\u3001\u529f\u80fd\u6269\u5c55\u5efa\u8bae<\/h3>\n<li>\u6dfb\u52a0\u4e32\u53e3\u8f93\u51fa&#xff1a;\u914d\u7f6eUSART1&#xff0c;\u5c06\u5fc3\u7387\u6570\u636e\u901a\u8fc7\u4e32\u53e3\u6253\u5370\u5230\u7535\u8111&#xff0c;\u65b9\u4fbf\u8c03\u8bd5\u548c\u6570\u636e\u8bb0\u5f55\u3002<\/li>\n<li>\u4f18\u5316\u5fc3\u7387\u7b97\u6cd5&#xff1a;\u91c7\u7528\u6ed1\u52a8\u7a97\u53e3&#043;\u5dee\u5206\u6cd5\u66ff\u4ee3\u7b80\u5355\u5cf0\u503c\u68c0\u6d4b&#xff0c;\u63d0\u9ad8\u5fc3\u7387\u8ba1\u7b97\u7cbe\u5ea6\u548c\u6297\u5e72\u6270\u80fd\u529b\u3002<\/li>\n<li>\u6dfb\u52a0\u8840\u6c27\u68c0\u6d4b&#xff1a;\u542f\u7528MAX30102\u7684\u7ea2\u5149LED&#xff0c;\u540c\u65f6\u91c7\u96c6\u7ea2\u5916\u548c\u7ea2\u5149\u6570\u636e&#xff0c;\u8ba1\u7b97\u8840\u6c27\u9971\u548c\u5ea6&#xff08;SpO2&#xff09;\u3002<\/li>\n<li>\u7535\u6c60\u4f9b\u7535\u6539\u9020&#xff1a;\u4f7f\u75283.7V\u9502\u7535\u6c60&#043;\u5347\u538b\u6a21\u5757\u4f9b\u7535&#xff0c;\u5236\u4f5c\u4fbf\u643a\u5f0f\u5fc3\u7387\u76d1\u6d4b\u4eea\u3002<\/li>\n<li>\u6570\u636e\u5b58\u50a8\u529f\u80fd&#xff1a;\u5916\u63a5SD\u5361\u6a21\u5757&#xff0c;\u5c06\u5fc3\u7387\u6570\u636e\u5b58\u50a8\u4e3aCSV\u6587\u4ef6&#xff0c;\u4fbf\u4e8e\u540e\u7eed\u5206\u6790\u3002<\/li>\n<h3>\u603b\u7ed3<\/h3>\n<li>\u672c\u65b9\u6848\u4ee5STM32F103C8T6\u4e3a\u6838\u5fc3&#xff0c;\u57fa\u4e8eMAX30102\u5149\u7535\u4f20\u611f\u5668\u5b9e\u73b0\u5fc3\u7387\u76d1\u6d4b&#xff0c;\u901a\u8fc7\u5cf0\u503c\u68c0\u6d4b\u7b97\u6cd5\u8ba1\u7b97\u5fc3\u7387&#xff0c;\u8d85\u51fa\u9608\u503c\u89e6\u53d1\u58f0\u5149\u62a5\u8b66&#xff0c;\u786c\u4ef6\u63a5\u7ebf\u7b80\u5355&#xff0c;\u4ee3\u7801\u6a21\u5757\u5316\u4e14\u6ce8\u91ca\u8be6\u7ec6&#xff0c;\u96f6\u57fa\u7840\u5c0f\u767d\u53ef\u6309\u6b65\u9aa4\u843d\u5730\u3002<\/li>\n<li>\u7cfb\u7edf\u6838\u5fc3\u903b\u8f91\u901a\u8fc7Mermaid\u6d41\u7a0b\u56fe\u6e05\u6670\u5448\u73b0&#xff0c;\u5173\u952e\u53c2\u6570&#xff08;\u5fc3\u7387\u9608\u503c\u3001\u5cf0\u503c\u68c0\u6d4b\u9608\u503c&#xff09;\u53ef\u6839\u636e\u5b9e\u9645\u573a\u666f\u8c03\u6574&#xff0c;\u786e\u4fdd\u9002\u914d\u4e0d\u540c\u7528\u6237\u7684\u4f7f\u7528\u9700\u6c42\u3002<\/li>\n<li>\u8c03\u8bd5\u65f6\u9700\u4f18\u5148\u9a8c\u8bc1\u7535\u6e90\u548c\u4f20\u611f\u5668\u901a\u4fe1&#xff0c;\u518d\u8c03\u8bd5\u5fc3\u7387\u8ba1\u7b97\u548c\u62a5\u8b66\u903b\u8f91&#xff0c;\u9047\u5230\u95ee\u9898\u53ef\u901a\u8fc7Keil\u7684\u53d8\u91cf\u76d1\u63a7\u529f\u80fd\u5b9a\u4f4d\u6545\u969c\u70b9&#xff0c;\u5feb\u901f\u89e3\u51b3\u3002<\/li>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u76ee\u5f55 \u4e00\u3001\u65b9\u6848\u6574\u4f53\u8bbe\u8ba1\u4e0e\u539f\u7406\u8bf4\u660e1.1 \u6838\u5fc3\u539f\u74061.2 \u6574\u4f53\u67b6\u6784\u6d41\u7a0b\u56fe \u4e8c\u3001\u786c\u4ef6\u9009\u578b\u4e0e\u63a5\u7ebf2.1 \u6838\u5fc3\u786c\u4ef6\u6e05\u53552.2 \u8be6\u7ec6\u63a5\u7ebf\u8bf4\u660e&#xff08;1&#xff09;STM32\u4e0eMAX30102\u5fc3\u7387\u4f20\u611f\u5668\u63a5\u7ebf&#xff08;2&#xff09;STM32\u4e0eOLED\u663e\u793a\u5c4f\u63a5\u7ebf&#xff08;3&#xff09;STM32\u4e0e\u62a5\u8b66\u6a21\u5757\u63a5\u7ebf \u4e09\u3001\u8f6f\u4ef6\u5f00\u53d1\u73af\u5883\u642d\u5efa3.1 \u73af\u5883\u51c6\u59073.2 STM32CubeMX\u521d\u59cb\u5316\u914d\u7f6e\u6b65\u9aa4\u6b65\u9aa41&#xff1a;\u65b0\u5efa\u5de5\u7a0b\u6b65\u9aa42&#xff1a;\u914d\u7f6eRCC\u65f6\u949f<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[217,270,269],"topic":[],"class_list":["post-66654","post","type-post","status-publish","format-standard","hentry","category-server","tag-stm32","tag-270","tag-269"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u573a\u666f\u5b9e\u6218\uff1a\u57fa\u4e8eSTM32\u7684\u5149\u7535\u5f0f\u5fc3\u7387\u76d1\u6d4b\u4eea\u4e0e\u62a5\u8b66\u7cfb\u7edf\u89e3\u51b3\u65b9\u6848\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/66654.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u573a\u666f\u5b9e\u6218\uff1a\u57fa\u4e8eSTM32\u7684\u5149\u7535\u5f0f\u5fc3\u7387\u76d1\u6d4b\u4eea\u4e0e\u62a5\u8b66\u7cfb\u7edf\u89e3\u51b3\u65b9\u6848\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u76ee\u5f55 \u4e00\u3001\u65b9\u6848\u6574\u4f53\u8bbe\u8ba1\u4e0e\u539f\u7406\u8bf4\u660e1.1 \u6838\u5fc3\u539f\u74061.2 \u6574\u4f53\u67b6\u6784\u6d41\u7a0b\u56fe \u4e8c\u3001\u786c\u4ef6\u9009\u578b\u4e0e\u63a5\u7ebf2.1 \u6838\u5fc3\u786c\u4ef6\u6e05\u53552.2 \u8be6\u7ec6\u63a5\u7ebf\u8bf4\u660e&#xff08;1&#xff09;STM32\u4e0eMAX30102\u5fc3\u7387\u4f20\u611f\u5668\u63a5\u7ebf&#xff08;2&#xff09;STM32\u4e0eOLED\u663e\u793a\u5c4f\u63a5\u7ebf&#xff08;3&#xff09;STM32\u4e0e\u62a5\u8b66\u6a21\u5757\u63a5\u7ebf \u4e09\u3001\u8f6f\u4ef6\u5f00\u53d1\u73af\u5883\u642d\u5efa3.1 \u73af\u5883\u51c6\u59073.2 STM32CubeMX\u521d\u59cb\u5316\u914d\u7f6e\u6b65\u9aa4\u6b65\u9aa41&#xff1a;\u65b0\u5efa\u5de5\u7a0b\u6b65\u9aa42&#xff1a;\u914d\u7f6eRCC\u65f6\u949f\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/66654.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-26T23:17:46+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"19 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/66654.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/66654.html\",\"name\":\"\u573a\u666f\u5b9e\u6218\uff1a\u57fa\u4e8eSTM32\u7684\u5149\u7535\u5f0f\u5fc3\u7387\u76d1\u6d4b\u4eea\u4e0e\u62a5\u8b66\u7cfb\u7edf\u89e3\u51b3\u65b9\u6848\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-01-26T23:17:46+00:00\",\"dateModified\":\"2026-01-26T23:17:46+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/66654.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/66654.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/66654.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u573a\u666f\u5b9e\u6218\uff1a\u57fa\u4e8eSTM32\u7684\u5149\u7535\u5f0f\u5fc3\u7387\u76d1\u6d4b\u4eea\u4e0e\u62a5\u8b66\u7cfb\u7edf\u89e3\u51b3\u65b9\u6848\u89e3\u6790\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u573a\u666f\u5b9e\u6218\uff1a\u57fa\u4e8eSTM32\u7684\u5149\u7535\u5f0f\u5fc3\u7387\u76d1\u6d4b\u4eea\u4e0e\u62a5\u8b66\u7cfb\u7edf\u89e3\u51b3\u65b9\u6848\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/66654.html","og_locale":"zh_CN","og_type":"article","og_title":"\u573a\u666f\u5b9e\u6218\uff1a\u57fa\u4e8eSTM32\u7684\u5149\u7535\u5f0f\u5fc3\u7387\u76d1\u6d4b\u4eea\u4e0e\u62a5\u8b66\u7cfb\u7edf\u89e3\u51b3\u65b9\u6848\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"\u6587\u7ae0\u76ee\u5f55 \u4e00\u3001\u65b9\u6848\u6574\u4f53\u8bbe\u8ba1\u4e0e\u539f\u7406\u8bf4\u660e1.1 \u6838\u5fc3\u539f\u74061.2 \u6574\u4f53\u67b6\u6784\u6d41\u7a0b\u56fe \u4e8c\u3001\u786c\u4ef6\u9009\u578b\u4e0e\u63a5\u7ebf2.1 \u6838\u5fc3\u786c\u4ef6\u6e05\u53552.2 \u8be6\u7ec6\u63a5\u7ebf\u8bf4\u660e&#xff08;1&#xff09;STM32\u4e0eMAX30102\u5fc3\u7387\u4f20\u611f\u5668\u63a5\u7ebf&#xff08;2&#xff09;STM32\u4e0eOLED\u663e\u793a\u5c4f\u63a5\u7ebf&#xff08;3&#xff09;STM32\u4e0e\u62a5\u8b66\u6a21\u5757\u63a5\u7ebf \u4e09\u3001\u8f6f\u4ef6\u5f00\u53d1\u73af\u5883\u642d\u5efa3.1 \u73af\u5883\u51c6\u59073.2 STM32CubeMX\u521d\u59cb\u5316\u914d\u7f6e\u6b65\u9aa4\u6b65\u9aa41&#xff1a;\u65b0\u5efa\u5de5\u7a0b\u6b65\u9aa42&#xff1a;\u914d\u7f6eRCC\u65f6\u949f","og_url":"https:\/\/www.wsisp.com\/helps\/66654.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-01-26T23:17:46+00:00","author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"19 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/66654.html","url":"https:\/\/www.wsisp.com\/helps\/66654.html","name":"\u573a\u666f\u5b9e\u6218\uff1a\u57fa\u4e8eSTM32\u7684\u5149\u7535\u5f0f\u5fc3\u7387\u76d1\u6d4b\u4eea\u4e0e\u62a5\u8b66\u7cfb\u7edf\u89e3\u51b3\u65b9\u6848\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-01-26T23:17:46+00:00","dateModified":"2026-01-26T23:17:46+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/66654.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/66654.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/66654.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"\u573a\u666f\u5b9e\u6218\uff1a\u57fa\u4e8eSTM32\u7684\u5149\u7535\u5f0f\u5fc3\u7387\u76d1\u6d4b\u4eea\u4e0e\u62a5\u8b66\u7cfb\u7edf\u89e3\u51b3\u65b9\u6848\u89e3\u6790"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/66654","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=66654"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/66654\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=66654"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=66654"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=66654"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=66654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}