{"id":77042,"date":"2026-02-23T22:10:48","date_gmt":"2026-02-23T14:10:48","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/77042.html"},"modified":"2026-02-23T22:10:48","modified_gmt":"2026-02-23T14:10:48","slug":"spi-%e5%b7%a5%e4%bd%9c%e6%a8%a1%e5%bc%8f%e8%af%a6%e8%a7%a3%ef%bc%9a%e4%bb%8e%e6%97%b6%e5%ba%8f%e5%88%b0%e5%ae%9e%e6%88%98%e9%85%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/77042.html","title":{"rendered":"SPI \u5de5\u4f5c\u6a21\u5f0f\u8be6\u89e3\uff1a\u4ece\u65f6\u5e8f\u5230\u5b9e\u6218\u914d\u7f6e"},"content":{"rendered":"<h3>1. SPI\u5de5\u4f5c\u6a21\u5f0f\u7684\u6838\u5fc3\u6982\u5ff5<\/h3>\n<p>SPI\u901a\u4fe1\u534f\u8bae\u4e2d\u6709\u4e2a\u7279\u522b\u91cd\u8981\u7684\u6982\u5ff5\u53eb\u505a\u5de5\u4f5c\u6a21\u5f0f&#xff0c;\u8fd9\u76f4\u63a5\u51b3\u5b9a\u4e86\u6570\u636e\u901a\u4fe1\u80fd\u5426\u6210\u529f\u3002\u5f88\u591a\u521d\u5b66\u8005\u5728\u914d\u7f6eSPI\u65f6\u7ecf\u5e38\u4f1a\u9047\u5230\u901a\u4fe1\u5931\u8d25\u7684\u60c5\u51b5&#xff0c;\u5f80\u5f80\u5c31\u662f\u56e0\u4e3a\u5de5\u4f5c\u6a21\u5f0f\u6ca1\u914d\u7f6e\u5bf9\u3002\u6211\u81ea\u5df1\u521a\u5f00\u59cb\u63a5\u89e6SPI\u65f6\u4e5f\u8e29\u8fc7\u4e0d\u5c11\u5751&#xff0c;\u6709\u4e00\u6b21\u8c03\u8bd5\u4e00\u4e2a\u4f20\u611f\u5668\u82b1\u4e86\u6574\u6574\u4e24\u5929\u65f6\u95f4&#xff0c;\u6700\u540e\u53d1\u73b0\u5c31\u662f\u6a21\u5f0f\u8bbe\u7f6e\u9519\u4e86\u3002<\/p>\n<p>SPI\u7684\u56db\u79cd\u5de5\u4f5c\u6a21\u5f0f\u662f\u7531\u4e24\u4e2a\u5173\u952e\u53c2\u6570\u7ec4\u5408\u51b3\u5b9a\u7684&#xff1a;CPOL&#xff08;Clock Polarity&#xff0c;\u65f6\u949f\u6781\u6027&#xff09;\u548cCPHA&#xff08;Clock Phase&#xff0c;\u65f6\u949f\u76f8\u4f4d&#xff09;\u3002\u8fd9\u4e24\u4e2a\u53c2\u6570\u542c\u8d77\u6765\u5f88\u6280\u672f\u5316&#xff0c;\u4f46\u5176\u5b9e\u7406\u89e3\u8d77\u6765\u5e76\u4e0d\u96be\u3002<\/p>\n<p>CPOL\u51b3\u5b9a\u7684\u662f\u65f6\u949f\u7ebf\u5728\u7a7a\u95f2\u72b6\u6001\u65f6\u7684\u7535\u5e73\u3002\u7b80\u5355\u6765\u8bf4&#xff0c;\u5c31\u662f\u5f53SPI\u4e0d\u4f20\u8f93\u6570\u636e\u65f6&#xff0c;SCLK\u5f15\u811a\u4e0a\u662f\u9ad8\u7535\u5e73\u8fd8\u662f\u4f4e\u7535\u5e73\u3002\u5982\u679cCPOL&#061;0&#xff0c;\u7a7a\u95f2\u65f6\u5c31\u662f\u4f4e\u7535\u5e73&#xff1b;\u5982\u679cCPOL&#061;1&#xff0c;\u7a7a\u95f2\u65f6\u5c31\u662f\u9ad8\u7535\u5e73\u3002\u8fd9\u4e2a\u5f88\u597d\u8bb0&#xff0c;0\u5c31\u662f\u4f4e&#xff0c;1\u5c31\u662f\u9ad8\u3002<\/p>\n<p>CPHA\u51b3\u5b9a\u7684\u662f\u6570\u636e\u5728\u65f6\u949f\u7684\u54ea\u4e2a\u8fb9\u6cbf\u88ab\u91c7\u6837\u3002CPHA&#061;0\u8868\u793a\u5728\u7b2c\u4e00\u4e2a\u8fb9\u6cbf\u91c7\u6837&#xff0c;CPHA&#061;1\u8868\u793a\u5728\u7b2c\u4e8c\u4e2a\u8fb9\u6cbf\u91c7\u6837\u3002\u8fd9\u91cc\u7684\u7b2c\u4e00\u4e2a\u548c\u7b2c\u4e8c\u4e2a\u8fb9\u6cbf\u662f\u76f8\u5bf9\u4e8e\u65f6\u949f\u4fe1\u53f7\u7684\u53d8\u5316\u800c\u8a00\u7684\u3002<\/p>\n<p>\u5c06CPOL\u548cCPHA\u7ec4\u5408\u8d77\u6765&#xff0c;\u5c31\u5f97\u5230\u4e86SPI\u7684\u56db\u79cd\u5de5\u4f5c\u6a21\u5f0f&#xff1a;<\/p>\n<ul>\n<li>\u6a21\u5f0f0&#xff1a;CPOL&#061;0, CPHA&#061;0<\/li>\n<li>\u6a21\u5f0f1&#xff1a;CPOL&#061;0, CPHA&#061;1<\/li>\n<li>\u6a21\u5f0f2&#xff1a;CPOL&#061;1, CPHA&#061;0<\/li>\n<li>\u6a21\u5f0f3&#xff1a;CPOL&#061;1, CPHA&#061;1<\/li>\n<\/ul>\n<p>\u4e0d\u540c\u7684\u5916\u8bbe\u5668\u4ef6\u53ef\u80fd\u652f\u6301\u4e0d\u540c\u7684\u5de5\u4f5c\u6a21\u5f0f&#xff0c;\u6240\u4ee5\u5728\u914d\u7f6eSPI\u65f6&#xff0c;\u5fc5\u987b\u6839\u636e\u6570\u636e\u624b\u518c\u9009\u62e9\u6b63\u786e\u7684\u5de5\u4f5c\u6a21\u5f0f&#xff0c;\u5426\u5219\u901a\u4fe1\u5c31\u4f1a\u5931\u8d25\u3002<\/p>\n<h3>2. \u6df1\u5165\u7406\u89e3\u65f6\u5e8f\u7279\u5f81<\/h3>\n<p>\u8981\u771f\u6b63\u638c\u63e1SPI\u7684\u5de5\u4f5c\u6a21\u5f0f&#xff0c;\u5fc5\u987b\u7406\u89e3\u6bcf\u79cd\u6a21\u5f0f\u4e0b\u7684\u65f6\u5e8f\u7279\u5f81\u3002\u65f6\u5e8f\u5c31\u50cf\u662fSPI\u901a\u4fe1\u7684\u8bed\u8a00\u89c4\u5219&#xff0c;\u5982\u679c\u4e3b\u4ece\u8bbe\u5907\u8bf4\u7684\u4e0d\u662f\u540c\u4e00\u79cd&#034;\u8bed\u8a00&#034;&#xff0c;\u81ea\u7136\u5c31\u65e0\u6cd5\u6c9f\u901a\u4e86\u3002<\/p>\n<p>**\u6a21\u5f0f0&#xff08;CPOL&#061;0, CPHA&#061;0&#xff09;**\u662f\u6700\u5e38\u7528\u7684\u6a21\u5f0f\u3002\u5728\u8fd9\u79cd\u6a21\u5f0f\u4e0b&#xff0c;\u65f6\u949f\u7a7a\u95f2\u65f6\u4e3a\u4f4e\u7535\u5e73&#xff0c;\u6570\u636e\u5728\u65f6\u949f\u7684\u4e0a\u5347\u6cbf\u88ab\u91c7\u6837\u3002\u4e5f\u5c31\u662f\u8bf4&#xff0c;\u5f53\u65f6\u949f\u4ece\u4f4e\u7535\u5e73\u8df3\u53d8\u5230\u9ad8\u7535\u5e73\u65f6&#xff0c;\u63a5\u6536\u7aef\u4f1a\u8bfb\u53d6\u6570\u636e\u7ebf\u4e0a\u7684\u503c\u3002\u6570\u636e\u5728\u65f6\u949f\u7684\u4e0b\u964d\u6cbf\u53d1\u751f\u53d8\u5316&#xff0c;\u4e3a\u4e0b\u4e00\u6b21\u91c7\u6837\u505a\u51c6\u5907\u3002<\/p>\n<p>**\u6a21\u5f0f1&#xff08;CPOL&#061;0, CPHA&#061;1&#xff09;**\u4e0b&#xff0c;\u65f6\u949f\u7a7a\u95f2\u65f6\u4e5f\u662f\u4f4e\u7535\u5e73&#xff0c;\u4f46\u6570\u636e\u91c7\u6837\u65f6\u523b\u53d8\u6210\u4e86\u65f6\u949f\u7684\u4e0b\u964d\u6cbf\u3002\u8fd9\u65f6\u5019&#xff0c;\u6570\u636e\u5728\u4e0a\u5347\u6cbf\u53d1\u751f\u53d8\u5316&#xff0c;\u5728\u4e0b\u964d\u6cbf\u88ab\u91c7\u6837\u3002<\/p>\n<p>**\u6a21\u5f0f2&#xff08;CPOL&#061;1, CPHA&#061;0&#xff09;**\u4e0e\u6a21\u5f0f0\u7c7b\u4f3c&#xff0c;\u4f46\u65f6\u949f\u6781\u6027\u53cd\u4e86\u8fc7\u6765\u3002\u65f6\u949f\u7a7a\u95f2\u65f6\u4e3a\u9ad8\u7535\u5e73&#xff0c;\u6570\u636e\u5728\u65f6\u949f\u7684\u4e0b\u964d\u6cbf\u88ab\u91c7\u6837&#xff0c;\u5728\u4e0a\u5347\u6cbf\u53d1\u751f\u53d8\u5316\u3002<\/p>\n<p>**\u6a21\u5f0f3&#xff08;CPOL&#061;1, CPHA&#061;1&#xff09;**\u4e0b&#xff0c;\u65f6\u949f\u7a7a\u95f2\u65f6\u4e3a\u9ad8\u7535\u5e73&#xff0c;\u6570\u636e\u5728\u65f6\u949f\u7684\u4e0a\u5347\u6cbf\u88ab\u91c7\u6837&#xff0c;\u5728\u4e0b\u964d\u6cbf\u53d1\u751f\u53d8\u5316\u3002<\/p>\n<p>\u7406\u89e3\u8fd9\u4e9b\u65f6\u5e8f\u7279\u5f81\u6709\u4e2a\u5c0f\u6280\u5de7&#xff1a;\u4f60\u53ef\u4ee5\u628a\u65f6\u949f\u4fe1\u53f7\u60f3\u8c61\u6210\u4e00\u4e2a\u4eba\u7684\u5fc3\u8df3&#xff0c;\u6570\u636e\u4fe1\u53f7\u5c31\u662f\u968f\u7740\u5fc3\u8df3\u8282\u594f\u4f20\u9012\u7684\u4fe1\u606f\u3002\u4e0d\u540c\u7684\u5de5\u4f5c\u6a21\u5f0f\u5c31\u50cf\u662f\u4e0d\u540c\u7684\u821e\u8e48\u8282\u594f&#xff0c;\u6709\u7684\u5728\u5fc3\u8df3\u65f6\u4f20\u9012\u4fe1\u606f&#xff0c;\u6709\u7684\u5728\u5fc3\u8df3\u95f4\u9694\u65f6\u4f20\u9012\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u8c03\u8bd5\u4e2d&#xff0c;\u5982\u679c\u9047\u5230\u901a\u4fe1\u95ee\u9898&#xff0c;\u6211\u901a\u5e38\u4f1a\u5148\u7528\u903b\u8f91\u5206\u6790\u4eea\u6293\u53d6\u65f6\u5e8f\u6ce2\u5f62&#xff0c;\u770b\u770b\u65f6\u949f\u548c\u6570\u636e\u7684\u53d8\u5316\u662f\u5426\u7b26\u5408\u9884\u671f\u3002\u5f88\u591a\u65f6\u5019&#xff0c;\u65f6\u5e8f\u6ce2\u5f62\u4e00\u773c\u5c31\u80fd\u770b\u51fa\u95ee\u9898\u6240\u5728\u3002<\/p>\n<h3>3. \u5b9e\u9645\u914d\u7f6e\u65b9\u6cd5\u4e0e\u6280\u5de7<\/h3>\n<p>\u73b0\u5728\u6211\u4eec\u6765\u804a\u804a\u5728\u5b9e\u9645\u5d4c\u5165\u5f0f\u5f00\u53d1\u4e2d\u5982\u4f55\u914d\u7f6eSPI\u7684\u5de5\u4f5c\u6a21\u5f0f\u3002\u4ee5STM32\u4e3a\u4f8b&#xff0c;\u4f7f\u7528HAL\u5e93\u8fdb\u884c\u914d\u7f6e\u76f8\u5bf9\u7b80\u5355&#xff0c;\u4f46\u6709\u4e9b\u7ec6\u8282\u9700\u8981\u6ce8\u610f\u3002<\/p>\n<p>\u9996\u5148\u9700\u8981\u521d\u59cb\u5316SPI\u7684\u53c2\u6570\u7ed3\u6784\u4f53&#xff1a;<\/p>\n<p>SPI_HandleTypeDef hspi;<\/p>\n<p>hspi.Instance &#061; SPI1;<br \/>\nhspi.Init.Mode &#061; SPI_MODE_MASTER;<br \/>\nhspi.Init.Direction &#061; SPI_DIRECTION_2LINES;<br \/>\nhspi.Init.DataSize &#061; SPI_DATASIZE_8BIT;<br \/>\nhspi.Init.CLKPolarity &#061; SPI_POLARITY_LOW;<br \/>\nhspi.Init.CLKPhase &#061; SPI_PHASE_1EDGE;<br \/>\nhspi.Init.NSS &#061; SPI_NSS_SOFT;<br \/>\nhspi.Init.BaudRatePrescaler &#061; SPI_BAUDRATEPRESCALER_256;<br \/>\nhspi.Init.FirstBit &#061; SPI_FIRSTBIT_MSB;<br \/>\nhspi.Init.TIMode &#061; SPI_TIMODE_DISABLE;<br \/>\nhspi.Init.CRCCalculation &#061; SPI_CRCCALCULATION_DISABLE;<br \/>\nhspi.Init.CRCPolynomial &#061; 10;<\/p>\n<p>HAL_SPI_Init(&amp;hspi);<\/p>\n<p>\u5728\u8fd9\u4e2a\u914d\u7f6e\u4e2d&#xff0c;CLKPolarity\u548cCLKPhase\u5c31\u662f\u8bbe\u7f6e\u5de5\u4f5c\u6a21\u5f0f\u7684\u5173\u952e\u53c2\u6570\u3002SPI_POLARITY_LOW\u5bf9\u5e94CPOL&#061;0&#xff0c;SPI_POLARITY_HIGH\u5bf9\u5e94CPOL&#061;1\u3002SPI_PHASE_1EDGE\u5bf9\u5e94CPHA&#061;0&#xff0c;SPI_PHASE_2EDGE\u5bf9\u5e94CPHA&#061;1\u3002<\/p>\n<p>\u5bf9\u4e8e\u4e0d\u540c\u7684\u5de5\u4f5c\u6a21\u5f0f&#xff0c;\u914d\u7f6e\u7ec4\u5408\u5982\u4e0b&#xff1a;<\/p>\n<ul>\n<li>\u6a21\u5f0f0&#xff1a;SPI_POLARITY_LOW &#043; SPI_PHASE_1EDGE<\/li>\n<li>\u6a21\u5f0f1&#xff1a;SPI_POLARITY_LOW &#043; SPI_PHASE_2EDGE<\/li>\n<li>\u6a21\u5f0f2&#xff1a;SPI_POLARITY_HIGH &#043; SPI_PHASE_1EDGE<\/li>\n<li>\u6a21\u5f0f3&#xff1a;SPI_POLARITY_HIGH &#043; SPI_PHASE_2EDGE<\/li>\n<\/ul>\n<p>\u5728\u5b9e\u9645\u9879\u76ee\u4e2d&#xff0c;\u6211\u5efa\u8bae\u521b\u5efa\u4e00\u4e2a\u914d\u7f6e\u51fd\u6570\u6765\u7075\u6d3b\u8bbe\u7f6e\u5de5\u4f5c\u6a21\u5f0f&#xff1a;<\/p>\n<p>void SPI_Config_Mode(SPI_HandleTypeDef *hspi, uint8_t mode)<br \/>\n{<br \/>\n    switch(mode) {<br \/>\n        case 0:<br \/>\n            hspi-&gt;Init.CLKPolarity &#061; SPI_POLARITY_LOW;<br \/>\n            hspi-&gt;Init.CLKPhase &#061; SPI_PHASE_1EDGE;<br \/>\n            break;<br \/>\n        case 1:<br \/>\n            hspi-&gt;Init.CLKPolarity &#061; SPI_POLARITY_LOW;<br \/>\n            hspi-&gt;Init.CLKPhase &#061; SPI_PHASE_2EDGE;<br \/>\n            break;<br \/>\n        case 2:<br \/>\n            hspi-&gt;Init.CLKPolarity &#061; SPI_POLARITY_HIGH;<br \/>\n            hspi-&gt;Init.CLKPhase &#061; SPI_PHASE_1EDGE;<br \/>\n            break;<br \/>\n        case 3:<br \/>\n            hspi-&gt;Init.CLKPolarity &#061; SPI_POLARITY_HIGH;<br \/>\n            hspi-&gt;Init.CLKPhase &#061; SPI_PHASE_2EDGE;<br \/>\n            break;<br \/>\n    }<br \/>\n    HAL_SPI_Init(hspi);<br \/>\n}<\/p>\n<p>\u8fd9\u6837\u5728\u5207\u6362\u4e0d\u540c\u5916\u8bbe\u65f6&#xff0c;\u53ea\u9700\u8981\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\u5e76\u4f20\u5165\u5bf9\u5e94\u7684\u5de5\u4f5c\u6a21\u5f0f\u5373\u53ef&#xff0c;\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n<h3>4. \u5e38\u89c1\u5916\u8bbe\u9002\u914d\u5b9e\u6218<\/h3>\n<p>\u4e0d\u540c\u7684SPI\u5916\u8bbe\u5bf9\u5de5\u4f5c\u6a21\u5f0f\u7684\u8981\u6c42\u5404\u4e0d\u76f8\u540c&#xff0c;\u8fd9\u4e5f\u662f\u5f88\u591a\u5f00\u53d1\u8005\u5bb9\u6613\u51fa\u9519\u7684\u5730\u65b9\u3002\u4e0b\u9762\u6211\u7ed3\u5408\u51e0\u4e2a\u5e38\u89c1\u7684\u5916\u8bbe\u7c7b\u578b&#xff0c;\u5206\u4eab\u4e00\u4e9b\u5b9e\u6218\u7ecf\u9a8c\u3002<\/p>\n<p>\u5b58\u50a8\u5668\u7c7b\u5916\u8bbe\u5982SPI Flash\u82af\u7247&#xff0c;\u901a\u5e38\u4f7f\u7528\u6a21\u5f0f0\u6216\u6a21\u5f0f3\u3002\u6bd4\u5982Winbond\u7684W25Q\u7cfb\u5217Flash\u82af\u7247\u5c31\u652f\u6301\u6a21\u5f0f0\u548c\u6a21\u5f0f3\u3002\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d&#xff0c;\u6211\u53d1\u73b0\u6a21\u5f0f0\u7684\u517c\u5bb9\u6027\u66f4\u597d\u4e00\u4e9b\u3002\u914d\u7f6e\u65f6\u9700\u8981\u6ce8\u610f&#xff0c;\u6709\u4e9bFlash\u82af\u7247\u5728\u521d\u59cb\u5316\u540e\u53ef\u80fd\u9700\u8981\u53d1\u9001\u7279\u5b9a\u7684\u547d\u4ee4\u6765\u4f7f\u80fdSPI\u63a5\u53e3\u3002<\/p>\n<p>\u4f20\u611f\u5668\u7c7b\u5916\u8bbe\u7684\u5de5\u4f5c\u6a21\u5f0f\u5c31\u6bd4\u8f83\u591a\u6837\u4e86\u3002\u6bd4\u5982MPU-6050\u9640\u87ba\u4eea\u4f7f\u7528\u6a21\u5f0f3&#xff0c;\u800cBME280\u6e29\u6e7f\u5ea6\u4f20\u611f\u5668\u4f7f\u7528\u6a21\u5f0f0\u3002\u6211\u5728\u4e00\u6b21\u9879\u76ee\u4e2d\u4f7f\u7528BME280\u65f6&#xff0c;\u4e00\u5f00\u59cb\u8bef\u7528\u4e86\u6a21\u5f0f3&#xff0c;\u7ed3\u679c\u8bfb\u56de\u6765\u7684\u6570\u636e\u5168\u662f\u4e71\u7684\u3002\u540e\u6765\u4ed4\u7ec6\u67e5\u770b\u6570\u636e\u624b\u518c\u624d\u53d1\u73b0\u95ee\u9898\u6240\u5728\u3002<\/p>\n<p>\u663e\u793a\u7c7b\u5916\u8bbe\u5982OLED\u5c4f\u5e55&#xff0c;\u5927\u591a\u4f7f\u7528\u6a21\u5f0f0\u3002\u6bd4\u5982SSD1306\u9a71\u52a8\u7684OLED\u5c4f\u5c31\u662f\u5178\u578b\u7684\u4f8b\u5b50\u3002\u914d\u7f6e\u65f6\u9700\u8981\u6ce8\u610f\u6570\u636e\u4f4d\u7684\u987a\u5e8f&#xff0c;\u6709\u4e9b\u5c4f\u5e55\u8981\u6c42MSB&#xff08;\u6700\u9ad8\u4f4d\u4f18\u5148&#xff09;&#xff0c;\u6709\u4e9b\u5219\u8981\u6c42LSB&#xff08;\u6700\u4f4e\u4f4d\u4f18\u5148&#xff09;\u3002<\/p>\n<p>\u65e0\u7ebf\u6a21\u5757\u5982nRF24L01&#xff0c;\u4f7f\u7528\u6a21\u5f0f0\u3002\u8fd9\u7c7b\u6a21\u5757\u5bf9\u65f6\u5e8f\u8981\u6c42\u6bd4\u8f83\u4e25\u683c&#xff0c;\u914d\u7f6e\u65f6\u9700\u8981\u7279\u522b\u6ce8\u610f\u65f6\u949f\u9891\u7387\u7684\u8bbe\u7f6e&#xff0c;\u8fc7\u9ad8\u7684\u9891\u7387\u53ef\u80fd\u5bfc\u81f4\u901a\u4fe1\u4e0d\u7a33\u5b9a\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d&#xff0c;\u6211\u517b\u6210\u4e86\u4e00\u4e2a\u597d\u4e60\u60ef&#xff1a;\u5728\u8fde\u63a5\u65b0\u5916\u8bbe\u65f6&#xff0c;\u9996\u5148\u4ed4\u7ec6\u9605\u8bfb\u5176\u6570\u636e\u624b\u518c\u4e2d\u5173\u4e8eSPI\u63a5\u53e3\u7684\u90e8\u5206&#xff0c;\u7279\u522b\u662f\u65f6\u5e8f\u56fe\u548c\u5de5\u4f5c\u6a21\u5f0f\u8981\u6c42\u3002\u7136\u540e\u6211\u4f1a\u5199\u4e00\u4e2a\u7b80\u5355\u7684\u6d4b\u8bd5\u7a0b\u5e8f&#xff0c;\u5c1d\u8bd5\u4e0d\u540c\u7684\u5de5\u4f5c\u6a21\u5f0f&#xff0c;\u76f4\u5230\u901a\u4fe1\u6210\u529f\u4e3a\u6b62\u3002<\/p>\n<p>\u8fd8\u6709\u4e00\u4e2a\u5b9e\u7528\u7684\u6280\u5de7&#xff1a;\u5f88\u591a\u73b0\u4ee3\u5fae\u63a7\u5236\u5668\u90fd\u652f\u6301SPI\u7684\u81ea\u52a8\u6a21\u5f0f\u68c0\u6d4b\u529f\u80fd\u3002\u6bd4\u5982STM32\u7684SPI\u63a5\u53e3\u53ef\u4ee5\u901a\u8fc7\u68c0\u67e5MISO\u7ebf\u4e0a\u7684\u6570\u636e\u6765\u81ea\u52a8\u786e\u5b9a\u6700\u4f73\u7684\u5de5\u4f5c\u6a21\u5f0f\u3002\u867d\u7136\u8fd9\u4e2a\u529f\u80fd\u5f88\u5f3a\u5927&#xff0c;\u4f46\u6211\u5efa\u8bae\u521d\u5b66\u8005\u8fd8\u662f\u5148\u624b\u52a8\u914d\u7f6e&#xff0c;\u4ee5\u4fbf\u66f4\u597d\u5730\u7406\u89e3\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n<h3>5. \u8c03\u8bd5\u6280\u5de7\u4e0e\u6545\u969c\u6392\u9664<\/h3>\n<p>SPI\u901a\u4fe1\u8c03\u8bd5\u662f\u6bcf\u4e2a\u5d4c\u5165\u5f0f\u5f00\u53d1\u8005\u5fc5\u987b\u638c\u63e1\u7684\u6280\u80fd\u3002\u6839\u636e\u6211\u7684\u7ecf\u9a8c&#xff0c;\u5927\u90e8\u5206SPI\u901a\u4fe1\u95ee\u9898\u90fd\u51fa\u5728\u5de5\u4f5c\u6a21\u5f0f\u914d\u7f6e\u4e0a\u3002\u4e0b\u9762\u5206\u4eab\u4e00\u4e9b\u5b9e\u7528\u7684\u8c03\u8bd5\u6280\u5de7\u3002<\/p>\n<p>\u9996\u5148\u662f\u6700\u57fa\u672c\u7684\u68c0\u67e5\u6e05\u5355&#xff1a;<\/p>\n<ul>\n<li>\u786e\u8ba4\u7535\u6e90\u4f9b\u7535\u6b63\u5e38&#xff0c;\u7535\u538b\u7b26\u5408\u8981\u6c42<\/li>\n<li>\u68c0\u67e5\u6240\u6709\u8fde\u63a5\u7ebf\u662f\u5426\u7262\u56fa&#xff0c;\u7279\u522b\u662f\u65f6\u949f\u548c\u6570\u636e\u7ebf<\/li>\n<li>\u786e\u8ba4\u7247\u9009\u4fe1\u53f7\u662f\u5426\u6b63\u786e\u63a7\u5236<\/li>\n<li>\u9a8c\u8bc1\u5de5\u4f5c\u6a21\u5f0f\u8bbe\u7f6e\u662f\u5426\u4e0e\u5916\u8bbe\u8981\u6c42\u4e00\u81f4<\/li>\n<\/ul>\n<p>\u5f53\u901a\u4fe1\u51fa\u73b0\u95ee\u9898\u65f6&#xff0c;\u903b\u8f91\u5206\u6790\u4eea\u662f\u4f60\u6700\u597d\u7684\u670b\u53cb\u3002\u901a\u8fc7\u6293\u53d6SPI\u603b\u7ebf\u4e0a\u7684\u5b9e\u9645\u6ce2\u5f62&#xff0c;\u53ef\u4ee5\u76f4\u89c2\u5730\u770b\u5230\u65f6\u949f\u6781\u6027\u548c\u76f8\u4f4d\u7684\u5b9e\u9645\u60c5\u51b5\u3002\u6211\u4e60\u60ef\u5148\u6293\u53d6\u4e00\u4e2a\u7b80\u5355\u7684\u6570\u636e\u4f20\u8f93\u6ce2\u5f62&#xff0c;\u7136\u540e\u5bf9\u7167\u6570\u636e\u624b\u518c\u7684\u65f6\u5e8f\u56fe\u9010\u4e00\u6bd4\u5bf9\u3002<\/p>\n<p>\u5982\u679c\u53d1\u73b0\u6ce2\u5f62\u5f02\u5e38&#xff0c;\u53ef\u80fd\u662f\u786c\u4ef6\u95ee\u9898\u3002\u6bd4\u5982\u4e0a\u62c9\u7535\u963b\u4e0d\u5408\u9002\u4f1a\u5bfc\u81f4\u4fe1\u53f7\u8fb9\u6cbf\u4e0d\u9661\u5ced&#xff0c;\u65f6\u949f\u9891\u7387\u8fc7\u9ad8\u4f1a\u4ea7\u751f\u632f\u94c3\u73b0\u8c61\u3002\u8fd9\u65f6\u5019\u53ef\u4ee5\u5c1d\u8bd5\u964d\u4f4e\u65f6\u949f\u9891\u7387\u770b\u770b\u662f\u5426\u6539\u5584\u3002<\/p>\n<p>\u8f6f\u4ef6\u5c42\u9762\u7684\u5e38\u89c1\u95ee\u9898\u5305\u62ec&#xff1a;<\/p>\n<ul>\n<li>\u5fd8\u8bb0\u5728\u4f20\u8f93\u524d\u62c9\u4f4e\u7247\u9009\u4fe1\u53f7<\/li>\n<li>\u4f20\u8f93\u540e\u6ca1\u6709\u53ca\u65f6\u62c9\u9ad8\u7247\u9009\u4fe1\u53f7<\/li>\n<li>\u7f13\u51b2\u533a\u5927\u5c0f\u8bbe\u7f6e\u4e0d\u5f53<\/li>\n<li>DMA\u4f20\u8f93\u914d\u7f6e\u9519\u8bef<\/li>\n<\/ul>\n<p>\u6709\u4e00\u6b21\u6211\u9047\u5230\u4e00\u4e2a\u7279\u522b\u9690\u853d\u7684\u95ee\u9898&#xff1a;SPI\u901a\u4fe1\u5728\u4f4e\u6e29\u73af\u5883\u4e0b\u4e0d\u7a33\u5b9a\u3002\u540e\u6765\u53d1\u73b0\u662f\u65f6\u949f\u7ebf\u592a\u957f\u5bfc\u81f4\u7684\u4fe1\u53f7\u5b8c\u6574\u6027\u95ee\u9898\u3002\u901a\u8fc7\u7f29\u77ed\u8d70\u7ebf\u957f\u5ea6\u5e76\u52a0\u4e0a\u9002\u5f53\u7684\u7ec8\u7aef\u7535\u963b&#xff0c;\u95ee\u9898\u5f97\u5230\u4e86\u89e3\u51b3\u3002<\/p>\n<p>\u5bf9\u4e8e\u95f4\u6b47\u6027\u901a\u4fe1\u6545\u969c&#xff0c;\u6211\u5efa\u8bae\u589e\u52a0\u9519\u8bef\u91cd\u8bd5\u673a\u5236\u3002\u53ef\u4ee5\u5728\u4f20\u8f93\u51fd\u6570\u4e2d\u52a0\u5165\u91cd\u8bd5\u903b\u8f91&#xff0c;\u5f53\u68c0\u6d4b\u5230\u901a\u4fe1\u9519\u8bef\u65f6\u81ea\u52a8\u91cd\u8bd5\u51e0\u6b21&#xff1a;<\/p>\n<p>uint8_t SPI_TransmitWithRetry(SPI_HandleTypeDef *hspi, uint8_t *data, uint16_t size, uint8_t retries)<br \/>\n{<br \/>\n    HAL_StatusTypeDef status;<br \/>\n    uint8_t attempt &#061; 0;<\/p>\n<p>    while(attempt &lt; retries) {<br \/>\n        status &#061; HAL_SPI_Transmit(hspi, data, size, 1000);<br \/>\n        if(status &#061;&#061; HAL_OK) {<br \/>\n            return 0; \/\/ \u6210\u529f<br \/>\n        }<br \/>\n        attempt&#043;&#043;;<br \/>\n        HAL_Delay(1);<br \/>\n    }<br \/>\n    return 1; \/\/ \u5931\u8d25<br \/>\n}<\/p>\n<p>\u8fd9\u6837\u7684\u91cd\u8bd5\u673a\u5236\u5728\u5b9e\u9645\u4ea7\u54c1\u4e2d\u5f88\u6709\u7528&#xff0c;\u80fd\u591f\u63d0\u9ad8\u7cfb\u7edf\u7684\u9c81\u68d2\u6027\u3002<\/p>\n<h3>6. \u9ad8\u7ea7\u5e94\u7528\u4e0e\u4f18\u5316\u5efa\u8bae<\/h3>\n<p>\u5f53\u4f60\u638c\u63e1\u4e86SPI\u5de5\u4f5c\u6a21\u5f0f\u7684\u57fa\u7840\u77e5\u8bc6\u540e&#xff0c;\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63a2\u7d22\u4e00\u4e9b\u9ad8\u7ea7\u5e94\u7528\u548c\u4f18\u5316\u6280\u5de7\u3002\u8fd9\u4e9b\u7ecf\u9a8c\u5927\u591a\u6765\u81ea\u5b9e\u9645\u9879\u76ee\u4e2d\u7684\u79ef\u7d2f&#xff0c;\u5e0c\u671b\u80fd\u5e2e\u4f60\u5c11\u8d70\u5f2f\u8def\u3002<\/p>\n<p>\u65f6\u949f\u9891\u7387\u4f18\u5316\u662f\u5f88\u91cd\u8981\u7684\u4e00\u73af\u3002\u867d\u7136SPI\u652f\u6301\u5f88\u9ad8\u7684\u65f6\u949f\u9891\u7387&#xff08;\u901a\u5e38\u53ef\u8fbe\u51e0\u5341MHz&#xff09;&#xff0c;\u4f46\u5e76\u4e0d\u662f\u9891\u7387\u8d8a\u9ad8\u8d8a\u597d\u3002\u8fc7\u9ad8\u7684\u65f6\u949f\u9891\u7387\u4f1a\u5bfc\u81f4\u4fe1\u53f7\u5b8c\u6574\u6027\u95ee\u9898&#xff0c;\u7279\u522b\u662f\u5f53PCB\u5e03\u7ebf\u4e0d\u591f\u7406\u60f3\u65f6\u3002\u6211\u4e00\u822c\u4f1a\u4ece\u8f83\u4f4e\u9891\u7387\u5f00\u59cb\u6d4b\u8bd5&#xff0c;\u9010\u6b65\u63d0\u9ad8\u76f4\u5230\u627e\u5230\u7a33\u5b9a\u5de5\u4f5c\u7684\u6700\u9ad8\u9891\u7387\u3002<\/p>\n<p>DMA\u4f20\u8f93\u53ef\u4ee5\u5927\u5e45\u63d0\u5347SPI\u901a\u4fe1\u6548\u7387&#xff0c;\u7279\u522b\u662f\u5728\u9700\u8981\u4f20\u8f93\u5927\u91cf\u6570\u636e\u65f6\u3002\u6bd4\u5982\u5728\u9a71\u52a8SPI Flash\u5b58\u50a8\u5668\u6216\u8005LCD\u5c4f\u5e55\u65f6&#xff0c;\u4f7f\u7528DMA\u53ef\u4ee5\u89e3\u653eCPU&#xff0c;\u8ba9\u5b83\u5904\u7406\u5176\u4ed6\u4efb\u52a1\u3002\u914d\u7f6eDMA\u65f6\u9700\u8981\u6ce8\u610f\u6570\u636e\u5bf9\u9f50\u95ee\u9898\u548c\u7f13\u51b2\u533a\u7ba1\u7406\u3002<\/p>\n<p>\/\/ \u914d\u7f6eSPI\u7684DMA\u4f20\u8f93<br \/>\nvoid SPI_Config_DMA(SPI_HandleTypeDef *hspi)<br \/>\n{<br \/>\n    \/\/ \u914d\u7f6eTX DMA<br \/>\n    hdma_tx.Instance &#061; DMA1_Channel3;<br \/>\n    hdma_tx.Init.Direction &#061; DMA_MEMORY_TO_PERIPH;<br \/>\n    hdma_tx.Init.PeriphInc &#061; DMA_PINC_DISABLE;<br \/>\n    hdma_tx.Init.MemInc &#061; DMA_MINC_ENABLE;<br \/>\n    hdma_tx.Init.PeriphDataAlignment &#061; DMA_PDATAALIGN_BYTE;<br \/>\n    hdma_tx.Init.MemDataAlignment &#061; DMA_MDATAALIGN_BYTE;<br \/>\n    hdma_tx.Init.Mode &#061; DMA_NORMAL;<br \/>\n    hdma_tx.Init.Priority &#061; DMA_PRIORITY_HIGH;<br \/>\n    HAL_DMA_Init(&amp;hdma_tx);<\/p>\n<p>    __HAL_LINKDMA(hspi, hdmatx, hdma_tx);<br \/>\n}<\/p>\n<p>\u591a\u4ece\u8bbe\u5907\u7ba1\u7406\u662f\u53e6\u4e00\u4e2a\u9700\u8981\u5173\u6ce8\u7684\u9886\u57df\u3002\u5f53\u7cfb\u7edf\u4e2d\u6709\u591a\u4e2aSPI\u4ece\u8bbe\u5907\u65f6&#xff0c;\u9700\u8981\u4ed4\u7ec6\u8bbe\u8ba1\u7247\u9009\u4fe1\u53f7\u7684\u63a7\u5236\u903b\u8f91\u3002\u6211\u5efa\u8bae\u4e3a\u6bcf\u4e2a\u4ece\u8bbe\u5907\u7f16\u5199\u72ec\u7acb\u7684\u9a71\u52a8\u51fd\u6570&#xff0c;\u5e76\u5728\u51fd\u6570\u5185\u90e8\u5904\u7406\u7247\u9009\u4fe1\u53f7\u7684\u63a7\u5236&#xff0c;\u8fd9\u6837\u80fd\u907f\u514d\u5728\u5e94\u7528\u5c42\u5fd8\u8bb0\u63a7\u5236\u7247\u9009\u4fe1\u53f7\u3002<\/p>\n<p>\u4f4e\u529f\u8017\u4f18\u5316\u5bf9\u4e8e\u7535\u6c60\u4f9b\u7535\u7684\u8bbe\u5907\u7279\u522b\u91cd\u8981\u3002SPI\u603b\u7ebf\u5728\u4e0d\u4f7f\u7528\u65f6\u5e94\u8be5\u88ab\u6b63\u786e\u5173\u95ed\u4ee5\u8282\u7701\u529f\u8017\u3002\u6709\u4e9b\u5fae\u63a7\u5236\u5668\u652f\u6301SPI\u7684\u7761\u7720\u6a21\u5f0f&#xff0c;\u53ef\u4ee5\u5728\u4fdd\u6301\u914d\u7f6e\u7684\u60c5\u51b5\u4e0b\u964d\u4f4e\u529f\u8017\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. SPI\u5de5\u4f5c\u6a21\u5f0f\u7684\u6838\u5fc3\u6982\u5ff5<br \/>\nSPI\u901a\u4fe1\u534f\u8bae\u4e2d\u6709\u4e2a\u7279\u522b\u91cd\u8981\u7684\u6982\u5ff5\u53eb\u505a\u5de5\u4f5c\u6a21\u5f0f&#xff0c;\u8fd9\u76f4\u63a5\u51b3\u5b9a\u4e86\u6570\u636e\u901a\u4fe1\u80fd\u5426\u6210\u529f\u3002\u5f88\u591a\u521d\u5b66\u8005\u5728\u914d\u7f6eSPI\u65f6\u7ecf\u5e38\u4f1a\u9047\u5230\u901a\u4fe1\u5931\u8d25\u7684\u60c5\u51b5&#xff0c;\u5f80\u5f80\u5c31\u662f\u56e0\u4e3a\u5de5\u4f5c\u6a21\u5f0f\u6ca1\u914d\u7f6e\u5bf9\u3002\u6211\u81ea\u5df1\u521a\u5f00\u59cb\u63a5\u89e6SPI\u65f6\u4e5f\u8e29\u8fc7\u4e0d\u5c11\u5751&#xff0c;\u6709\u4e00\u6b21\u8c03\u8bd5\u4e00\u4e2a\u4f20\u611f\u5668\u82b1\u4e86\u6574\u6574\u4e24\u5929\u65f6\u95f4&#xff0c;\u6700\u540e\u53d1\u73b0\u5c31\u662f\u6a21\u5f0f\u8bbe\u7f6e\u9519\u4e86\u3002<br \/>\nSPI\u7684\u56db\u79cd\u5de5\u4f5c\u6a21\u5f0f\u662f\u7531\u4e24\u4e2a\u5173\u952e\u53c2\u6570\u7ec4\u5408\u51b3\u5b9a\u7684&#xff1a;CPOL&#xff08;Clock Polarity&#xff0c;<\/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":[7676,2896,996],"topic":[],"class_list":["post-77042","post","type-post","status-publish","format-standard","hentry","category-server","tag-spi","tag-2896","tag-996"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>SPI \u5de5\u4f5c\u6a21\u5f0f\u8be6\u89e3\uff1a\u4ece\u65f6\u5e8f\u5230\u5b9e\u6218\u914d\u7f6e - \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\/77042.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SPI \u5de5\u4f5c\u6a21\u5f0f\u8be6\u89e3\uff1a\u4ece\u65f6\u5e8f\u5230\u5b9e\u6218\u914d\u7f6e - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"1. SPI\u5de5\u4f5c\u6a21\u5f0f\u7684\u6838\u5fc3\u6982\u5ff5 SPI\u901a\u4fe1\u534f\u8bae\u4e2d\u6709\u4e2a\u7279\u522b\u91cd\u8981\u7684\u6982\u5ff5\u53eb\u505a\u5de5\u4f5c\u6a21\u5f0f&#xff0c;\u8fd9\u76f4\u63a5\u51b3\u5b9a\u4e86\u6570\u636e\u901a\u4fe1\u80fd\u5426\u6210\u529f\u3002\u5f88\u591a\u521d\u5b66\u8005\u5728\u914d\u7f6eSPI\u65f6\u7ecf\u5e38\u4f1a\u9047\u5230\u901a\u4fe1\u5931\u8d25\u7684\u60c5\u51b5&#xff0c;\u5f80\u5f80\u5c31\u662f\u56e0\u4e3a\u5de5\u4f5c\u6a21\u5f0f\u6ca1\u914d\u7f6e\u5bf9\u3002\u6211\u81ea\u5df1\u521a\u5f00\u59cb\u63a5\u89e6SPI\u65f6\u4e5f\u8e29\u8fc7\u4e0d\u5c11\u5751&#xff0c;\u6709\u4e00\u6b21\u8c03\u8bd5\u4e00\u4e2a\u4f20\u611f\u5668\u82b1\u4e86\u6574\u6574\u4e24\u5929\u65f6\u95f4&#xff0c;\u6700\u540e\u53d1\u73b0\u5c31\u662f\u6a21\u5f0f\u8bbe\u7f6e\u9519\u4e86\u3002 SPI\u7684\u56db\u79cd\u5de5\u4f5c\u6a21\u5f0f\u662f\u7531\u4e24\u4e2a\u5173\u952e\u53c2\u6570\u7ec4\u5408\u51b3\u5b9a\u7684&#xff1a;CPOL&#xff08;Clock Polarity&#xff0c;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/77042.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-02-23T14:10:48+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=\"3 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/77042.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/77042.html\",\"name\":\"SPI \u5de5\u4f5c\u6a21\u5f0f\u8be6\u89e3\uff1a\u4ece\u65f6\u5e8f\u5230\u5b9e\u6218\u914d\u7f6e - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-02-23T14:10:48+00:00\",\"dateModified\":\"2026-02-23T14:10:48+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/77042.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/77042.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/77042.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"SPI \u5de5\u4f5c\u6a21\u5f0f\u8be6\u89e3\uff1a\u4ece\u65f6\u5e8f\u5230\u5b9e\u6218\u914d\u7f6e\"}]},{\"@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":"SPI \u5de5\u4f5c\u6a21\u5f0f\u8be6\u89e3\uff1a\u4ece\u65f6\u5e8f\u5230\u5b9e\u6218\u914d\u7f6e - \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\/77042.html","og_locale":"zh_CN","og_type":"article","og_title":"SPI \u5de5\u4f5c\u6a21\u5f0f\u8be6\u89e3\uff1a\u4ece\u65f6\u5e8f\u5230\u5b9e\u6218\u914d\u7f6e - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"1. SPI\u5de5\u4f5c\u6a21\u5f0f\u7684\u6838\u5fc3\u6982\u5ff5 SPI\u901a\u4fe1\u534f\u8bae\u4e2d\u6709\u4e2a\u7279\u522b\u91cd\u8981\u7684\u6982\u5ff5\u53eb\u505a\u5de5\u4f5c\u6a21\u5f0f&#xff0c;\u8fd9\u76f4\u63a5\u51b3\u5b9a\u4e86\u6570\u636e\u901a\u4fe1\u80fd\u5426\u6210\u529f\u3002\u5f88\u591a\u521d\u5b66\u8005\u5728\u914d\u7f6eSPI\u65f6\u7ecf\u5e38\u4f1a\u9047\u5230\u901a\u4fe1\u5931\u8d25\u7684\u60c5\u51b5&#xff0c;\u5f80\u5f80\u5c31\u662f\u56e0\u4e3a\u5de5\u4f5c\u6a21\u5f0f\u6ca1\u914d\u7f6e\u5bf9\u3002\u6211\u81ea\u5df1\u521a\u5f00\u59cb\u63a5\u89e6SPI\u65f6\u4e5f\u8e29\u8fc7\u4e0d\u5c11\u5751&#xff0c;\u6709\u4e00\u6b21\u8c03\u8bd5\u4e00\u4e2a\u4f20\u611f\u5668\u82b1\u4e86\u6574\u6574\u4e24\u5929\u65f6\u95f4&#xff0c;\u6700\u540e\u53d1\u73b0\u5c31\u662f\u6a21\u5f0f\u8bbe\u7f6e\u9519\u4e86\u3002 SPI\u7684\u56db\u79cd\u5de5\u4f5c\u6a21\u5f0f\u662f\u7531\u4e24\u4e2a\u5173\u952e\u53c2\u6570\u7ec4\u5408\u51b3\u5b9a\u7684&#xff1a;CPOL&#xff08;Clock Polarity&#xff0c;","og_url":"https:\/\/www.wsisp.com\/helps\/77042.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-02-23T14:10:48+00:00","author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"3 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/77042.html","url":"https:\/\/www.wsisp.com\/helps\/77042.html","name":"SPI \u5de5\u4f5c\u6a21\u5f0f\u8be6\u89e3\uff1a\u4ece\u65f6\u5e8f\u5230\u5b9e\u6218\u914d\u7f6e - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-02-23T14:10:48+00:00","dateModified":"2026-02-23T14:10:48+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/77042.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/77042.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/77042.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"SPI \u5de5\u4f5c\u6a21\u5f0f\u8be6\u89e3\uff1a\u4ece\u65f6\u5e8f\u5230\u5b9e\u6218\u914d\u7f6e"}]},{"@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\/77042","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=77042"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/77042\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=77042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=77042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=77042"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=77042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}