{"id":101446,"date":"2026-09-06T21:02:30","date_gmt":"2026-09-06T13:02:30","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/101446.html"},"modified":"2026-09-06T21:02:30","modified_gmt":"2026-09-06T13:02:30","slug":"tim%e5%ae%9a%e6%97%b6%e4%b8%ad%e6%96%ad%ef%bc%88stm32%e6%a0%87%e5%87%86%e5%ba%93%e5%ad%a6%e4%b9%a0%e7%ac%94%e8%ae%b0%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/101446.html","title":{"rendered":"TIM\u5b9a\u65f6\u4e2d\u65ad\uff08STM32\u6807\u51c6\u5e93\u5b66\u4e60\u7b14\u8bb0\uff09"},"content":{"rendered":"

\u5728\u4e0a\u4e00\u7ae0\u4e2d，\u6211\u4eec\u5b66\u4e60\u4e86 EXTI \u5916\u90e8\u4e2d\u65ad，\u638c\u63e1\u4e86\u5982\u4f55\u901a\u8fc7\u5916\u90e8\u5f15\u811a\u7684\u7535\u5e73\u53d8\u5316\u6765\u89e6\u53d1\u4e2d\u65ad，\u4ece\u800c\u8ba9 CPU \u53ca\u65f6\u54cd\u5e94\u5916\u90e8\u4e8b\u4ef6\u3002\u7136\u800c\u5728\u5b9e\u9645\u7684\u5d4c\u5165\u5f0f\u5f00\u53d1\u4e2d，\u9664\u4e86\u9700\u8981\u54cd\u5e94\u5916\u90e8\u4e8b\u4ef6，\u6211\u4eec\u8fd8\u7ecf\u5e38\u9700\u8981\u7cbe\u786e\u5730\u63a7\u5236\u65f6\u95f4，\u6bd4\u5982\u5b9a\u65f6\u91c7\u96c6\u4f20\u611f\u5668\u6570\u636e\u3001\u5468\u671f\u6027\u5237\u65b0\u663e\u793a\u3001\u4ea7\u751f PWM \u6ce2\u5f62\u7b49\u3002\u5982\u679c\u5355\u7eaf\u4f9d\u9760\u4e3b\u5faa\u73af\u7684\u5ef6\u65f6\u51fd\u6570，\u4e0d\u4ec5\u4f1a\u963b\u585e CPU \u7684\u6267\u884c，\u800c\u4e14\u96be\u4ee5\u4fdd\u8bc1\u65f6\u95f4\u7684\u51c6\u786e\u6027\u3002\u8fd9\u65f6，STM32 \u5185\u7f6e\u7684\u5b9a\u65f6\u5668（TIM）\u5c31\u6d3e\u4e0a\u4e86\u7528\u573a\u3002<\/p>\n

\u5b9a\u65f6\u5668\u662f STM32 \u4e2d\u975e\u5e38\u91cd\u8981\u4e14\u5e38\u7528\u7684\u5916\u8bbe，\u5b83\u901a\u8fc7\u5bf9\u5185\u90e8\u6216\u5916\u90e8\u65f6\u949f\u8fdb\u884c\u8ba1\u6570，\u5728\u8ba1\u6570\u503c\u8fbe\u5230\u8bbe\u5b9a\u503c\u65f6\u89e6\u53d1\u4e2d\u65ad，\u4ece\u800c\u5b9e\u73b0\u7cbe\u786e\u7684\u5b9a\u65f6\u529f\u80fd\u3002\u4e0e EXTI \u5916\u90e8\u4e2d\u65ad\u4e0d\u540c，\u5b9a\u65f6\u5668\u4e2d\u65ad\u662f\u7531\u5185\u90e8\u65f6\u949f\u9a71\u52a8\u3001\u81ea\u4e3b\u4ea7\u751f\u7684，\u65e0\u9700\u5916\u90e8\u4fe1\u53f7\u7684\u53c2\u4e0e，\u56e0\u6b64\u975e\u5e38\u9002\u5408\u7528\u4e8e\u5468\u671f\u6027\u4efb\u52a1\u7684\u8c03\u5ea6\u3002\u672c\u7ae0\u5c06\u56f4\u7ed5 TIM \u5b9a\u65f6\u4e2d\u65ad\u5c55\u5f00，\u4ece\u5b9a\u65f6\u5668\u7684\u57fa\u672c\u6982\u5ff5\u3001\u4e09\u79cd\u7c7b\u578b（\u57fa\u672c\u3001\u901a\u7528\u3001\u9ad8\u7ea7）\u7684\u5dee\u5f02，\u5230\u65f6\u57fa\u5355\u5143\u4e2d\u9884\u5206\u9891\u5668\u3001\u8ba1\u6570\u5668\u4e0e\u81ea\u52a8\u91cd\u88c5\u5bc4\u5b58\u5668\u7684\u5de5\u4f5c\u539f\u7406，\u518d\u5230\u9884\u5206\u9891\u5668\u65f6\u5e8f\u3001\u8ba1\u6570\u5668\u65f6\u5e8f\u4ee5\u53ca\u7f13\u51b2\u5bc4\u5b58\u5668\u7684\u4f7f\u7528，\u6700\u540e\u901a\u8fc7\u4e24\u4e2a\u5b9e\u6218\u5b9e\u4f8b\u2014\u2014\u5b9a\u65f6\u5668\u5b9a\u65f6\u4e2d\u65ad\u4e0e\u5b9a\u65f6\u5668\u5916\u90e8\u65f6\u949f，\u5e26\u9886\u5927\u5bb6\u5b8c\u6574\u638c\u63e1 STM32 \u5b9a\u65f6\u4e2d\u65ad\u7684\u5f00\u53d1\u6d41\u7a0b\u3002<\/p>\n

\u5982\u679c\u89c9\u5f97\u6709\u6536\u83b7\u53ef\u4ee5\u4e3a\u6211\u7684\u6587\u7ae0\u70b9\u70b9\u5c0f\u8d5e，\u8fd9\u5c06\u6fc0\u52b1\u6211\u521b\u4f5c\u66f4\u597d\u7684\u5185\u5bb9！\u8c22\u8c22！<\/p>\n

\u4e00\u3001TIM\u5b9a\u65f6\u4e2d\u65ad<\/h2>\n

\n

1.1 TIM\u7b80\u4ecb<\/h3>\n

TIM（Timer）\u5b9a\u65f6\u5668<\/p>\n

\u5b9a\u65f6\u5668\u53ef\u4ee5\u5bf9\u8f93\u5165\u7684\u65f6\u949f\u8fdb\u884c\u8ba1\u6570，\u5e76\u5728\u8ba1\u6570\u503c\u8fbe\u5230\u8bbe\u5b9a\u503c\u65f6\u89e6\u53d1\u4e2d\u65ad<\/p>\n

16\u4f4d\u8ba1\u6570\u5668\u3001\u9884\u5206\u9891\u5668\u3001\u81ea\u52a8\u91cd\u88c5\u5bc4\u5b58\u5668\u7684\u65f6\u57fa\u5355\u5143，\u572872MHz\u8ba1\u6570\u65f6\u949f\u4e0b\u53ef\u4ee5\u5b9e\u73b0\u6700\u592759.65s\u7684\u5b9a\u65f6<\/p>\n

\u4e0d\u4ec5\u5177\u5907\u57fa\u672c\u7684\u5b9a\u65f6\u4e2d\u65ad\u529f\u80fd，\u800c\u4e14\u8fd8\u5305\u542b\u5185\u5916\u65f6\u949f\u6e90\u9009\u62e9\u3001\u8f93\u5165\u6355\u83b7\u3001\u8f93\u51fa\u6bd4\u8f83\u3001\u7f16\u7801\u5668\u63a5\u53e3\u3001\u4e3b\u4ece\u89e6\u53d1\u6a21\u5f0f\u7b49\u591a\u79cd\u529f\u80fd<\/p>\n

\u6839\u636e\u590d\u6742\u5ea6\u548c\u5e94\u7528\u573a\u666f\u5206\u4e3a\u4e86\u9ad8\u7ea7\u5b9a\u65f6\u5668\u3001\u901a\u7528\u5b9a\u65f6\u5668\u3001\u57fa\u672c\u5b9a\u65f6\u5668\u4e09\u79cd\u7c7b\u578b<\/p>\n

\n

1.2 \u5b9a\u65f6\u5668\u7c7b\u578b<\/h3>\n

\"\"<\/p>\n

STM32F103C8T6\u5b9a\u65f6\u5668\u8d44\u6e90：TIM1\u3001TIM2\u3001TIM3\u3001TIM4<\/p>\n

\n

1.3 \u57fa\u672c\u5b9a\u65f6\u5668<\/h3>\n

\"\"<\/p>\n

\u4e0b\u9762\u8fd9\u4e00\u90e8\u5206，\u6709\u4e09\u4e2a\u6700\u91cd\u8981\u7684\u5bc4\u5b58\u5668，\u5206\u522b\u662f\u9884\u5206\u9891\u5668\u3001\u8ba1\u6570\u5668\u548c\u81ea\u52a8\u91cd\u88c5\u5bc4\u5b58\u5668，\u5b83\u4eec\u6784\u6210\u4e86\u6700\u57fa\u672c\u7684\u8ba1\u6570\u8ba1\u65f6\u7535\u8def，\u6240\u4ee5\u8fd9\u4e00\u5757\u7535\u8def\u5c31\u53eb\u505a\u65f6\u57fa\u5355\u5143\u3002\u9884\u5206\u9891\u5668\u4e4b\u524d，\u8fde\u63a5\u7684\u5c31\u662f\u57fa\u51c6\u8ba1\u6570\u65f6\u949f\u7684\u8f93\u5165，\u7531\u4e8e\u57fa\u672c\u5b9a\u65f6\u5668\u53ea\u80fd\u9009\u62e9\u5185\u90e8\u65f6\u949f，\u6240\u4ee5\u4f60\u53ef\u4ee5\u76f4\u63a5\u8ba4\u4e3a，\u9884\u5206\u9891\u5668\u76f4\u63a5\u8fde\u5230\u4e86\u8f93\u5165\u7aef\u7684\u5185\u90e8\u65f6\u949fCK INT，\u5185\u90e8\u65f6\u949f\u7684\u6765\u6e90\u662fRCC_TIMxCLK,\u8fd9\u91cc\u7684\u9891\u7387\u503c\u4e00\u822c\u90fd\u662f\u7cfb\u7edf\u7684\u4e3b\u989172MHz，\u6240\u4ee5\u901a\u5411\u65f6\u57fa\u5355\u5143\u7684\u8ba1\u6570\u57fa\u51c6\u9891\u7387\u5c31\u662f72M<\/p>\n

\u65f6\u57fa\u5355\u5143，\u9996\u5148\u662f\u9884\u5206\u9891\u5668，\u5b83\u53ef\u4ee5\u5bf9\u8fd9\u4e2a72MHz\u7684\u8ba1\u6570\u65f6\u949f\u8fdb\u884c\u9884\u5206\u9891，\u6bd4\u5982\u8fd9\u4e2a\u5bc4\u5b58\u5668\u51990，\u90a3\u5c31\u662f\u4e0d\u5206\u9891，\u6216\u8005\u8bf4\u662f1\u5206\u9891，\u8fd9\u65f6\u5019\u8f93\u51fa\u9891\u7387=\u8f93\u5165\u9891\u7387=72MHz；\u5982\u679c\u9884\u5206\u9891\u5668\u51991，\u90a3\u5c31\u662f2\u5206\u9891，\u8f93\u51fa\u9891\u7387=\u8f93\u5165\u9891\u7387\/2=36MHz；\u5982\u679c\u51992，\u5c31\u662f3\u5206\u9891，\u8f93\u51fa=\u8f93\u5165\/3，\u4ee5\u6b64\u5185\u63a8；\u6240\u4ee5\u9884\u5206\u9891\u5668\u7684\u503c\u548c\u5b9e\u9645\u7684\u5206\u9891\u7cfb\u6570\u76f8\u5dee\u4e861，\u5373\u5b9e\u9645\u5206\u9891\u7cfb\u6570=\u9884\u5206\u9891\u5668\u7684\u503c+1，\u8fd9\u4e2a\u9884\u5206\u9891\u5668\u662f16\u4f4d\u7684,\u6240\u4ee5\u6700\u5927\u503c\u53ef\u4ee5\u519965535，\u4e5f\u5c31\u662f65536\u5206\u9891，\u8fd9\u5c31\u662f\u9884\u5206\u9891\u5668，\u5c31\u662f\u5bf9\u8f93\u5165\u7684\u57fa\u51c6\u9891\u7387\u63d0\u524d\u8fdb\u884c\u4e00\u4e2a\u5206\u9891\u7684\u64cd\u4f5c，<\/p>\n

\u8ba1\u6570\u5668，\u8fd9\u4e2a\u8ba1\u6570\u5668\u53ef\u4ee5\u5bf9\u9884\u5206\u9891\u540e\u7684\u8ba1\u6570\u65f6\u949f\u8fdb\u884c\u8ba1\u6570，\u8ba1\u6570\u65f6\u949f\u6bcf\u6765\u4e00\u4e2a\u4e0a\u5347\u6cbf，\u8ba1\u6570\u5668\u7684\u503c\u5c31\u52a01，\u8fd9\u4e2a\u8ba1\u6570\u5668\u4e5f\u662f16\u4f4d\u7684，\u6240\u4ee5\u91cc\u9762\u7684\u503c\u53ef\u4ee5\u4ece0\u4e00\u76f4\u52a0\u523065535，\u5982\u679c\u518d\u52a0\u7684\u8bdd，\u8ba1\u6570\u5668\u5c31\u4f1a\u56de\u52300\u91cd\u65b0\u5f00\u59cb，\u6240\u4ee5\u8ba1\u6570\u5668\u7684\u503c\u5728\u8ba1\u65f6\u8fc7\u7a0b\u4e2d\u4f1a\u4e0d\u65ad\u5730\u81ea\u589e\u8fd0\u884c，\u5f53\u81ea\u589e\u8fd0\u884c\u5230\u76ee\u6807\u503c\u65f6，\u4ea7\u751f\u4e2d\u65ad，\u90a3\u5c31\u5b8c\u6210\u4e86\u5b9a\u65f6\u7684\u4efb\u52a1，\u6240\u4ee5\u73b0\u5728\u8fd8\u9700\u8981\u4e00\u4e2a\u5b58\u50a8\u76ee\u6807\u503c\u7684\u5bc4\u5b58\u5668，\u90a3\u5c31\u662f\u81ea\u52a8\u91cd\u88c5\u5bc4\u5b58\u5668\u4e86，\u81ea\u52a8\u91cd\u88c5\u5bc4\u5b58\u5668\u4e5f\u662f16\u4f4d\u7684，\u5b83\u5b58\u7684\u5c31\u662f\u6211\u4eec\u5199\u5165\u7684\u8ba1\u6570\u76ee\u6807，\u5728\u8fd0\u884c\u7684\u8fc7\u7a0b\u4e2d，\u8ba1\u6570\u503c\u4e0d\u65ad\u81ea\u589e，\u81ea\u52a8\u91cd\u88c5\u503c\u662f\u56fa\u5b9a\u7684\u76ee\u6807，\u5f53\u8ba1\u6570\u503c\u7b49\u4e8e\u81ea\u52a8\u91cd\u88c5\u503c\u65f6，\u4e5f\u5c31\u662f\u8ba1\u65f6\u65f6\u95f4\u5230\u4e86，\u90a3\u5b83\u5c31\u4f1a\u4ea7\u751f\u4e00\u4e2a\u4e2d\u65ad\u4fe1\u53f7，\u5e76\u4e14\u6e05\u96f6\u8ba1\u6570\u5668，\u8ba1\u6570\u5668\u81ea\u52a8\u5f00\u59cb\u4e0b\u4e00\u6b21\u7684\u8ba1\u6570\u8ba1\u65f6，\u50cf\u8fd9\u79cd\u8ba1\u6570\u503c\u7b49\u4e8e\u81ea\u52a8\u91cd\u88c5\u503c\u4ea7\u751f\u7684\u4e2d\u65ad\u5462，\u6211\u4eec\u4e00\u822c\u628a\u5b83\u53eb\u505a\u201c\u66f4\u65b0\u4e2d\u65ad\u201d，\u8fd9\u4e2a\u66f4\u65b0\u4e2d\u65ad\u4e4b\u540e\u5c31\u4f1a\u901a\u5f80NVIC,\u6211\u4eec\u518d\u914d\u7f6e\u597dNVIC\u7684\u5b9a\u65f6\u5668\u901a\u9053，\u90a3\u5b9a\u65f6\u5668\u7684\u66f4\u65b0\u4e2d\u65ad\u5c31\u80fd\u591f\u5f97\u5230CPU\u7684\u54cd\u5e94\u4e86，<\/p>\n

\u5411\u4e0b\u7684\u7bad\u5934，\u4ee3\u8868\u7684\u662f\u4f1a\u4ea7\u751f\u4e00\u4e2a\u4e8b\u4ef6，\u8fd9\u91cc\u5bf9\u5e94\u7684\u4e8b\u4ef6\u5c31\u53eb\u505a\u201c\u66f4\u65b0\u4e8b\u4ef6\u201d，\u66f4\u65b0\u4e8b\u4ef6\u4e0d\u4f1a\u89e6\u53d1\u4e2d\u65ad，\u4f46\u53ef\u4ee5\u89e6\u53d1\u5185\u90e8\u5176\u4ed6\u7535\u8def\u7684\u5de5\u4f5c\u3002<\/p>\n

\u57fa\u672c\u5b9a\u65f6\u5668\u4ec5\u652f\u6301\u5411\u4e0a\u8ba1\u6570\u8fd9\u4e00\u79cd\u6a21\u5f0f<\/p>\n

\n

1.4 \u901a\u7528\u5b9a\u65f6\u5668<\/h3>\n

\"\"<\/p>\n

\u901a\u7528\u5b9a\u65f6\u5668\u548c\u9ad8\u7ea7\u5b9a\u65f6\u5668\u652f\u6301\u5411\u4e0a\u8ba1\u6570\u3001\u5411\u4e0b\u8ba1\u6570\u3001\u4e2d\u592e\u5bf9\u9f50\u8fd9\u4e09\u79cd\u6a21\u5f0f<\/p>\n

\n

\"\"<\/p>\n

\u5916\u90e8\u65f6\u949f\u6a21\u5f0f1\u7684\u8f93\u5165\u53ef\u4ee5\u662fETR\u5f15\u811a\u3001\u5176\u4ed6\u5b9a\u65f6\u5668，CH1\u5f15\u811a\u7684\u8fb9\u6cbf\u3001CH1\u5f15\u811a\u548cCH2\u5f15\u811a，\u4e00\u822c\u60c5\u51b5\u4e0b\u5916\u90e8\u65f6\u949f\u901a\u8fc7ETR\u5f15\u811a\u5c31\u53ef\u4ee5\u4e86<\/p>\n

\n

1.5 \u9ad8\u7ea7\u5b9a\u65f6\u5668<\/h3>\n

\n

\"\"<\/p>\n

1.6 \u5b9a\u65f6\u4e2d\u65ad\u57fa\u672c\u7ed3\u6784<\/h3>\n

\"\"<\/p>\n

\n

1.7 \u9884\u5206\u9891\u5668\u65f6\u5e8f<\/span><\/h3>\n

\"\"<\/p>\n

\u8ba1\u6570\u5668\u8ba1\u6570\u9891\u7387：CK_CNT = CK_PSC \/ (PSC + 1)<\/p>\n

\n

\u7b2c\u4e00\u884c\u662fCK PSC,\u9884\u5206\u9891\u5668\u7684\u8f93\u5165\u65f6\u949f，\u9009\u5185\u90e8\u65f6\u949f\u7684\u8bdd\u4e00\u822c\u662f72MHz;<\/p>\n

\"\"<\/p>\n

\n

\u7b2c\u4e8c\u884c\u662fCNT_EN,\u8ba1\u6570\u5668\u4f7f\u80fd，\u9ad8\u7535\u5e73\u8ba1\u6570\u5668\u6b63\u5e38\u8fd0\u884c，\u4f4e\u7535\u5e73\u8ba1\u6570\u5668\u505c\u6b62;<\/p>\n

\u7b2c\u4e09\u884c\u662fCK_CNT,\u8ba1\u6570\u5668\u65f6\u949f,\u65e2\u662f\u9884\u5206\u9891\u5668\u7684\u65f6\u949f\u8f93\u51fa,\u4e5f\u662f\u8ba1\u6570\u5668\u7684\u65f6\u949f\u8f93\u5165;<\/p>\n

\n

\"\"<\/p>\n

\u7b2c\u56db\u884c\u662f\u8ba1\u6570\u5668\u5bc4\u5b58\u5668,\u6570\u503c\u8ddf\u968f\u65f6\u949f\u7684\u4e0a\u5347\u6cbf\u4e0d\u65ad\u81ea\u589e,\u8fbe\u5230\u81ea\u52a8\u91cd\u88c5\u503c\u65f6,\u4e0b\u4e00\u4e2a\u8ba1\u6570\u53d8\u4e3a0;<\/p>\n

\u7b2c\u4e94\u884c\u662f\u66f4\u65b0\u4e8b\u4ef6(UEV),\u5f53\u8ba1\u6570\u5668\u5bc4\u5b58\u5668\u8fbe\u5230\u81ea\u52a8\u91cd\u88c5\u503c\u65f6,\u66f4\u65b0\u4e8b\u4ef6(UEV),\u4ea7\u751f\u4e00\u4e2a\u4f4e\u5230\u9ad8\u7684\u7535\u5e73\u8109\u51b2;<\/p>\n

\u7f13\u51b2\u5bc4\u5b58\u5668:<\/span><\/p>\n

\"\"<\/p>\n

\u8ba1\u6570\u5668\u8ba1\u6570\u9891\u7387：CK_CNT = CK_PSC \/ (PSC + 1)<\/p>\n

\n

\u5f53\u8ba1\u6570\u5bc4\u5b58\u5668（\u7b2c\u56db\u884c）\u8ba1\u6570\u8ba1\u5230\u4e00\u534a\u7684\u65f6\u5019\u6539\u53d8\u4e86\u5206\u9891\u503c，\u8fd9\u4e2a\u53d8\u5316\u5e76\u4e0d\u4f1a\u7acb\u523b\u751f\u6548，\u800c\u662f\u4f1a\u7b49\u5230\u672c\u6b21\u8ba1\u6570\u5468\u671f\u7ed3\u675f\u65f6，\u4ea7\u751f\u4e86\u66f4\u65b0\u4e8b\u4ef6，\u9884\u5206\u9891\u5bc4\u5b58\u5668\u7684\u503c\u624d\u4f1a\u88ab\u4f20\u9012\u5230\u7f13\u51b2\u5bc4\u5b58\u5668\u91cc\u9762\u53bb，\u624d\u4f1a\u751f\u6548<\/span><\/p>\n

\u9884\u5206\u9891\u5668\u5185\u90e8\u5b9e\u9645\u4e0a\u4e5f\u662f\u9760\u8ba1\u6570\u6765\u5206\u9891\u7684，\u5f53\u9884\u5206\u9891\u503c\u4e3a0\u65f6，\u8ba1\u6570\u5668\u5c31\u4e00\u76f4\u4e3a0，\u76f4\u63a5\u8f93\u51fa\u539f\u9891\u7387，\u5f53\u9884\u5206\u9891\u503c\u4e3a1\u65f6，\u8ba1\u6570\u5668\u5c310\u30011\u30010\u30011\u30010\u30011\u30010\u30011\u8fd9\u6837\u8ba1\u6570，\u5728\u56de\u52300\u7684\u65f6\u5019，\u8f93\u51fa\u4e00\u4e2a\u8109\u51b2，<\/p>\n

\n

1.8 \u8ba1\u6570\u5668\u65f6\u5e8f<\/span><\/h3>\n

\"\"<\/p>\n

\u8ba1\u6570\u5668\u6ea2\u51fa\u9891\u7387：CK_CNT_OV = CK_CNT \/ (ARR + 1)<\/span><\/p>\n

= CK_PSC \/ (PSC + 1) \/ (ARR + 1)<\/span>（<\/span>CK_PSC<\/span>\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u662f72M）<\/span><\/p>\n

\n

\u66f4\u65b0\u4e2d\u65ad\u6807\u5fd7\u4f4dUIF：\u6b64\u6807\u5fd7\u4f4d\u53ea\u8981\u7f6e1\u4e86，\u5c31\u4f1a\u4e0d\u65ad\u7533\u8bf7\u4e2d\u65ad，\u7136\u540e\u4e2d\u65ad\u54cd\u5e94\u540e，\u9700\u8981\u5728\u4e2d\u65ad\u7a0b\u5e8f\u4e2d\u624b\u52a8\u6e05\u96f6<\/p>\n

\n

1.9 \u8ba1\u6570\u5668\u65e0\u9884\u88c5\u65f6\u5e8f（\u4e0d\u4f7f\u7528\u7f13\u51b2\u5bc4\u5b58\u5668）<\/h3>\n

\u901a\u8fc7\u8bbe\u7f6eARPE\u4f4d\u6765\u914d\u7f6e\u7f13\u51b2\u5bc4\u5b58\u5668\u7684\u4f7f\u7528\u4e0e\u5426<\/p>\n

\"\"<\/p>\n

\n

1.10 \u8ba1\u6570\u5668\u6709\u9884\u88c5\u65f6\u5e8f（\u4f7f\u7528\u7f13\u51b2\u5bc4\u5b58\u5668）<\/h3>\n

\u901a\u8fc7\u8bbe\u7f6eARPE\u4f4d\u6765\u914d\u7f6e\u7f13\u51b2\u5bc4\u5b58\u5668\u7684\u4f7f\u7528\u4e0e\u5426<\/p>\n

\"\"<\/p>\n

\u53ea\u6709\u5728\u5f53\u524d\u8ba1\u6570\u5668\u5bc4\u5b58\u5668\u7684\u503c\u5728\u66f4\u6539\u91cd\u88c5\u503c\u540e\u5b8c\u6210\u6700\u540e\u7684\u6ea2\u51fa\u65f6（\u7b49\u5bc4\u5b58\u5668\u8d70\u5b8c\u66f4\u6539\u524d\u7684\u503c，\u4e0a\u56fe\u4e3aF5）<\/span>，\u8981\u66f4\u6539\u7684\u91cd\u88c5\u503c\u624d\u88ab\u4f20\u9012\u5230\u5f71\u5b50\u5bc4\u5b58\u5668，<\/span>\u5728\u4e0b\u4e00\u4e2a\u8ba1\u6570\u5468\u671f\u8fd9\u4e2a\u66f4\u6539<\/span>\u503c（\u4e0a\u56fe\u4e3a36）<\/span>\u624d\u6709\u6548<\/span><\/p>\n

\n

1.11 <\/span>RCC\u65f6\u949f\u6811<\/span><\/h3>\n

\"\"<\/p>\n

\u5e93\u51fd\u6570Systemlnit\u51fd\u6570\u914d\u7f6e\u65f6\u949f\u6811\u7684\u64cd\u4f5c\u5982\u4e0b：<\/p>\n

1. \u542f\u52a8\u5185\u90e8\u65f6\u949f，\u9009\u62e9\u5185\u90e88MHz\u4e3a\u7cfb\u7edf\u65f6\u949f，\u6682\u65f6\u4ee5\u5185\u90e88MHz\u7684\u65f6\u949f\u8fd0\u884c；<\/p>\n

\"\"<\/p>\n

2. \u542f\u52a8\u5916\u90e8\u65f6\u949f，\u914d\u7f6e\u5916\u90e8\u65f6\u949f\u8fdb\u5165PLL\u9501\u76f8\u73af\u8fdb\u884c\u500d\u9891，8MHz\u500d\u98919\u500d，\u5f97\u523072MHz；<\/p>\n

\"\"<\/p>\n

3. \u7b49\u5230\u9501\u76f8\u73af\u8f93\u51fa\u7a33\u5b9a\u540e，\u9009\u62e9\u9501\u76f8\u73af\u8f93\u51fa\u4e3a\u7cfb\u7edf\u65f6\u949f，\u8fd9\u6837\u5c31\u628a\u7cfb\u7edf\u65f6\u949f\u75318MHz\u5207\u6362\u4e3a\u4e8672MHz；<\/p>\n

\"\"<\/p>\n

\u4ee5\u4e0a3\u6b65\u5c31\u662fST\u516c\u53f8\u7684\u5e93\u51fd\u6570\u5728\u65f6\u949f\u90e8\u5206\u7684\u914d\u7f6e\u7684\u6d41\u7a0b<\/p>\n

\u5982\u679c\u5916\u90e8\u6676\u632f\u51fa\u95ee\u9898\u4e86，\u7cfb\u7edf\u5c31\u65e0\u6cd5\u5207\u6362\u523072MHz，\u90a3\u5b83\u5c31\u4f1a\u4ee5\u5185\u90e8\u76848MHz\u8fd0\u884c，8M\u76f8\u6bd4\u8f8372M，\u5927\u6982\u5c31\u6162\u4e8610\u500d<\/p>\n

\n

\u65f6\u949f\u5b89\u5168\u7cfb\u7edfCSS：\u53ef\u4ee5\u76d1\u6d4b\u5916\u90e8\u65f6\u949f\u7684\u8fd0\u884c\u72b6\u6001，\u4e00\u4f46\u5916\u90e8\u65f6\u949f\u5931\u6548，\u5c31\u4f1a\u81ea\u52a8\u628a\u5916\u90e8\u65f6\u949f\u5207\u6362\u56de\u5185\u90e8\u65f6\u949f，\u4fdd\u8bc1\u7cfb\u7edf\u65f6\u949f\u7684\u8fd0\u884c，\u9632\u6b62\u7a0b\u5e8f\u5361\u6b7b\u9020\u6210\u4e8b\u6545<\/p>\n

\"\"<\/p>\n

AHB\u603b\u7ebf\u6709\u4e2a\u9884\u5206\u9891\u5668，\u5728Systemlnit\u91ccAHB\u9884\u5206\u9891\u5668\u914d\u7f6e\u7684\u5206\u914d\u7cfb\u6570\u4e3a1，\u6545AHB\u7684\u65f6\u949f\u5c31\u662f72MHz，\u7136\u540e\u8fdb\u5165APB1\u603b\u7ebf，APB1\u9884\u5206\u9891\u5668\u914d\u7f6e\u7684\u5206\u914d\u7cfb\u6570\u662f2，\u6240\u4ee5APB1\u603b\u7ebf\u7684\u65f6\u949f\u4e3a72MHz\/2=36MHz<\/p>\n

\"\"<\/p>\n

\u65e0\u8bba\u662f\u9ad8\u7ea7\u5b9a\u65f6\u5668，\u8fd8\u662f\u901a\u7528\u5b9a\u65f6\u5668，\u8fd8\u662f\u57fa\u672c\u5b9a\u65f6\u5668，\u5b83\u4eec\u7684\u5185\u90e8\u57fa\u51c6\u65f6\u949f\u90fd\u662f72MHz，\u56e0\u4e3a\u8fd8\u6709\u4e0b\u9762\u7684\u4e00\u6761\u5206\u652f：<\/p>\n

\"\"<\/p>\n

APB2\u5916\u8bbe\u4e0e\u5b9a\u65f6\u56681\u548c8\u4e5f\u662f72MHz<\/p>\n

\"\"<\/p>\n

\u6211\u4eec\u5728\u7a0b\u5e8f\u4e2d\u5199RCC APB2\/1PeriphClockCmd\u4f5c\u7528\u662f\u914d\u7f6e\u5916\u8bbe\u65f6\u949f\u4f7f\u80fd，\u51991\u6253\u5f00\u5b9a\u65f6\u5668<\/p>\n

<\/h3>\n

1.12 \u5b9e\u4f8b\u4e006.1.1 \u5b9a\u65f6\u5668\u5b9a\u65f6\u4e2d\u65ad<\/h3>\n

\u53ef\u80fd\u7528\u5230\u7684\u5e93\u51fd\u6570：<\/p>\n

\/\/<\/span>\u5c06\u6307\u5b9a\u5b9a\u65f6\u5668\u5916\u8bbe\u6062\u590d\u4e3a\u590d\u4f4d\u9ed8\u8ba4\u72b6\u6001，\u628a TIM \u6240\u6709\u5bc4\u5b58\u5668\u8fd8\u539f\u6210\u4e0a\u7535\u590d\u4f4d\u503c，\u76f8\u5f53\u4e8e\u628a\u5b9a\u65f6\u5668\u6574\u4e2a\u521d\u59cb\u5316\u914d\u7f6e\u5168\u90e8\u6e05\u7a7a<\/span><\/p>\n

void TIM_DeInit(TIM_TypeDef* TIMx);<\/p>\n

\/\/\u65f6\u57fa\u5355\u5143\u521d\u59cb\u5316<\/span><\/p>\n

void TIM_TimeBaseInit(TIM_TypeDef*TIMx,TIM_TimeBaseInitTypeDef*TIM_TimeBaseInitStruct);<\/p>\n

\u5176\u4e2d<\/span>TIM_TimeBaseInitTypeDef<\/span>\u5b9a\u4e49\u7684\u7ed3\u6784\u4f53TIM_TimeBaseInitStructure\u9700\u8981\u6ce8\u610f：<\/span><\/p>\n

TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;<\/span><\/p>\n

TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;<\/span><\/p>\n

TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;<\/span><\/p>\n

TIM_TimeBaseInitStructure.TIM_Period = 10000 – 1;\/\/\u91cd\u88c5\u503c（\u8bb0\u591a\u5c11\u6b21\u6570\u6ea2\u51fa\u4e00\u6b21）<\/span><\/p>\n

TIM_TimeBaseInitStructure.TIM_Prescaler = 7200 – 1;\/\/\u9884\u5206\u9891\u503c（\u5185\u90e8\u65f6\u949f\u7535\u5e73\u4e00\u4e0a\u4e00\u4e0b\u591a\u5c11\u6b21\u8ba1\u4e00\u4e2a\u6570）<\/span><\/p>\n

TIM_TimeBaseInitStructure.TIM_RepetitionCounter = 0;<\/span><\/p>\n

TIM_TimeBaseInit(TIM2,&TIM_TimeBaseInitStructure);<\/span><\/p>\n

\n

TIM_Period –> \u91cd\u88c5\u503c –> A<\/span>RR<\/span><\/p>\n

TIM_Prescaler –> \u9884\u5206\u9891\u503c –> <\/span>PSC<\/span><\/p>\n

\u4e0a\u9762\u4e24\u4e2a\u503c\u6ee1\u8db3<\/span><\/p>\n

\u8ba1\u6570\u5668\u6ea2\u51fa\u9891\u7387：CK_CNT_OV = CK_PSC \/ (PSC + 1) \/ (ARR + 1)<\/span><\/p>\n

（<\/span>CK_PSC<\/span>\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u662f72M）<\/span><\/p>\n

\u4f8b\u5982\u8981\u8ba1\u65f61s，1s\u5bf9\u5e94\u5c31\u662f1Hz\u9891\u7387，\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u914d\u6210 <\/span><\/p>\n

1 = 72M \/ <\/span>7200 – 1<\/span> + 1 \/<\/span> 10000 -1<\/span> +1<\/span><\/p>\n

\n

\u6ce8\u610f：\u8fd9\u4e2a\u51fd\u6570\u5728\u4f7f\u7528\u65f6\u4f1a\u5728\u6700\u5f00\u59cb<\/span>\u624b\u52a8\u751f\u6210\u4e00\u4e2a\u66f4\u65b0\u4e8b\u4ef6<\/span>\u7528\u6765\u8ba9\u6211\u4eec\u7ed9\u9884\u5206\u9891\u5668\u7684<\/span> \u503c\u751f\u6548\u3002\u4f46\u540c\u65f6，\u5b83\u7684\u526f\u4f5c\u7528\u5c31\u662f\u66f4\u65b0\u4e8b\u4ef6\u548c\u66f4\u65b0\u4e2d\u65ad\u662f\u540c\u65f6\u53d1\u751f\u7684，\u66f4\u65b0\u4e2d\u65ad<\/span> \u4f1a\u7f6e\u66f4\u65b0\u4e2d\u65ad\u6807\u5fd7\u4f4d，\u4e4b\u540e\u4e00\u4f46\u521d\u59cb\u5316\u5b8c\u6210，\u66f4\u65b0\u4e2d\u65ad\u5c31\u4f1a\u7acb\u523b\u8fdb\u5165<\/span><\/p>\n

\u89e3\u51b3\u65b9\u6848：\u5728TimeBaselnit\u7684\u540e\u9762，\u5f00\u542f\u4e2d\u65ad\u7684\u524d\u9762，\u518d\u624b\u52a8\u8c03\u7528\u4e00\u4e0bTIM_ClearFlag<\/span><\/p>\n

\u7528TIM_ClearFlag(TIM2,TIM_FLAG_Update);\u624b\u52a8\u628a\u66f4\u65b0\u4e2d\u65ad\u6807\u5fd7\u4f4d\u6e05\u9664\u4e00\u4e0b，\u5c31<\/span> \u80fd\u907f\u514d\u521a\u521d\u59cb\u5316\u5b8c\u5c31\u8fdb\u4e2d\u65ad\u7684\u95ee\u9898\u4e86<\/span><\/p>\n

\n

\/\/\u628a\u7ed3\u6784\u4f53\u53d8\u91cf\u8d4b\u4e00\u4e2a\u9ed8\u8ba4\u503c<\/span><\/p>\n

void TIM_TimeBaseStructInit(TIM_TimeBaseInitTypeDef* TIM_TimeBaseInitStruct);<\/p>\n

\n

\n

\"\"<\/p>\n

\/\/\u4f7f\u80fd\u8ba1\u6570\u5668<\/span><\/p>\n

void TIM_Cmd(TIM_TypeDef* TIMx, FunctionalState NewState);<\/p>\n

\n

\n

\"\"<\/p>\n

\/\/\u4f7f\u80fd\u4e2d\u65ad\u8f93\u51fa\u4fe1\u53f7（\u66f4\u65b0\u4e2d\u65ad）\u7684<\/span><\/p>\n

void TIM_ITConfig(TIM_TypeDef* TIMx, uint16_t TIM_IT, FunctionalState NewState);<\/p>\n

\n

\n

\"\"<\/p>\n

\/\/\u9009\u62e9\u5185\u90e8\u65f6\u949f<\/span><\/p>\n

void TIM_InternalClockConfig(TIM_TypeDef* TIMx);<\/p>\n

\n

\n

\/\/\u9009\u62e9ITRx\u5176\u4ed6\u5b9a\u65f6\u5668\u7684\u65f6\u949f<\/span><\/p>\n

void TIM_ITRxExternalClockConfig(TIM_TypeDef* TIMx, uint16_t TIM_InputTriggerSource);<\/p>\n

\n

\n

\"\"<\/p>\n

\/\/\u9009\u62e9TIx\u6355\u83b7\u901a\u9053\u7684\u65f6\u949f<\/span><\/p>\n

void TIM_TIxExternalClockConfig(TIM_TypeDef* TIMx,uint16_t TIM_TIxExternalCLKSource,uint16_t TIM_ICPolarity, uint16_t ICFilter);<\/p>\n

\n

\n

\"\"<\/p>\n

\/\/\u9009\u62e9ETR\u901a\u8fc7\u5916\u90e8\u65f6\u949f\u6a21\u5f0f1\u8f93\u5165\u7684\u65f6\u949f<\/span><\/p>\n

void TIM_ETRClockMode1Config(TIM_TypeDef* TIMx, uint16_t TIM_ExtTRGPrescaler, uint16_t TIM_ExtTRGPolarity,uint16_t ExtTRGFilter);<\/p>\n

\u5176\u4e2d\u53c2\u6570ExtTRGPrescaler,\u5916\u90e8\u89e6\u53d1\u9884\u5206\u9891\u5668，\u53ef\u4ee5\u5bf9ETR\u7684\u5916\u90e8\u65f6\u949f\u518d\u63d0\u524d\u505a\u4e00\u4e2a\u5206\u9891<\/p>\n

\n

\n

\"\"<\/p>\n

\/\/\u9009\u62e9ETR\u901a\u8fc7\u5916\u90e8\u65f6\u949f\u6a21\u5f0f2\u8f93\u5165\u7684\u65f6\u949f<\/span><\/p>\n

void TIM_ETRClockMode2Config(TIM_TypeDef* TIMx, uint16_t TIM_ExtTRGPrescaler, <\/p>\n

uint16_t TIM_ExtTRGPolarity, uint16_t ExtTRGFilter);<\/p>\n

\/\/\u5355\u72ec\u914d\u7f6eETR\u5f15\u811a\u7684\u9884\u5206\u9891\u5668\u3001\u6781\u6027\u3001\u6ee4\u6ce2\u5668\u53c2\u6570<\/span><\/p>\n

void TIM_ETRConfig(TIM_TypeDef* TIMx, uint16_t TIM_ExtTRGPrescaler, uint16_t TIM_ExtTRGPolarity,<\/p>\n

uint16_t ExtTRGFilter);<\/p>\n

\n

\u521d\u59cb\u540e\u8fd8\u8981\u4fee\u6539\u53c2\u6570：<\/span><\/p>\n

\/\/\u5355\u72ec\u5199\u9884\u5206\u9891\u503c\u7684<\/span><\/p>\n

void TIM_PrescalerConfig(TIM_TypeDef* TIMx, uint16_t Prescaler, uint16_t TIM_PSCReloadMode);<\/p>\n

\n

\/\/\u6539\u53d8\u8ba1\u6570\u5668\u7684\u8ba1\u6570\u6a21\u5f0f<\/span><\/p>\n

void TIM_CounterModeConfig(TIM_TypeDef* TIMx, uint16_t TIM_CounterMode);<\/p>\n

\/\/\u81ea\u52a8\u91cd\u88c5\u5668\u9884\u88c5\u529f\u80fd\u914d\u7f6e<\/span><\/p>\n

void TIM_ARRPreloadConfig(TIM_TypeDef* TIMx, FunctionalState NewState);<\/p>\n

\/\/\u624b\u52a8\u7ed9\u8ba1\u6570\u5668\u4e00\u4e2a\u8ba1\u6570\u503c<\/span><\/p>\n

void TIM_SetCounter(TIM_TypeDef* TIMx, uint16_t Counter);<\/p>\n

\/\/\u624b\u52a8\u7ed9\u81ea\u52a8\u91cd\u88c5\u5668\u5199\u5165\u4e00\u4e2a\u503c<\/span><\/p>\n

void TIM_SetAutoreload(TIM_TypeDef* TIMx, uint16_t Autoreload);<\/p>\n

\/\/\u83b7\u53d6\u5f53\u524d\u8ba1\u6570\u5668\u7684\u503c（\u770b\u5f53\u524d\u8ba1\u6570\u5668\u8bb0\u5230\u54ea\u91cc\u4e86）<\/span><\/p>\n

uint16_t TIM_GetCounter(TIM_TypeDef* TIMx);<\/p>\n

\/\/\u83b7\u53d6\u5f53\u524d\u7684\u9884\u5206\u9891\u5668\u7684\u503c<\/span><\/p>\n

uint16_t TIM_GetPrescaler(TIM_TypeDef* TIMx);<\/p>\n

\n

\/\/\u83b7\u53d6\u6807\u5fd7\u4f4d\u548c\u6e05\u9664\u6807\u5fd7\u4f4d<\/span><\/p>\n

FlagStatus TIM_GetFlagStatus(TIM_TypeDef* TIMx, uint16_t TIM_FLAG);<\/p>\n

\n

void TIM_ClearFlag(TIM_TypeDef* TIMx, uint16_t TIM_FLAG);<\/p>\n

\n

ITStatus TIM_GetITStatus(TIM_TypeDef* TIMx, uint16_t TIM_IT);<\/p>\n

\n

void TIM_ClearITPendingBit(TIM_TypeDef* TIMx, uint16_t TIM_IT);<\/p>\n

\n

\n

Timer\u4ee3\u7801\u6a21\u5757\u5982\u4e0b：<\/p>\n

Timer<\/span>.c<\/span>（\u5b9a\u65f6\u5668）\u2193<\/span><\/p>\n

—————————–<\/span><\/p>\n

"stm32f10x.h" \/\/ Device header<\/p>\n

void Timer_Init(void)
\n{
\nRCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);<\/p>\n

TIM_InternalClockConfig(TIM2);<\/p>\n

TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
\nTIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
\nTIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
\nTIM_TimeBaseInitStructure.TIM_Period = 10000 – 1;\/\/\u91cd\u88c5\u503c（\u8bb0\u591a\u5c11\u6b21\u6570\u6ea2\u51fa\u4e00\u6b21）
\nTIM_TimeBaseInitStructure.TIM_Prescaler = 7200 – 1;\/\/\u9884\u5206\u9891\u503c（\u5185\u90e8\u65f6\u949f\u7535\u5e73\u4e00\u4e0a\u4e00\u4e0b\u591a\u5c11\u6b21\u8ba1\u4e00\u4e2a\u6570）
\nTIM_TimeBaseInitStructure.TIM_RepetitionCounter = 0;
\nTIM_TimeBaseInit(TIM2,&TIM_TimeBaseInitStructure);<\/p>\n

TIM_ClearFlag(TIM2,TIM_FLAG_Update);
\nTIM_ITConfig(TIM2,TIM_IT_Update,ENABLE);<\/p>\n

NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);<\/p>\n

NVIC_InitTypeDef NVIC_InitStructure;
\nNVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
\nNVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
\nNVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
\nNVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
\nNVIC_Init(&NVIC_InitStructure);<\/p>\n

TIM_Cmd(TIM2,ENABLE);<\/p>\n

}<\/p>\n

\/*
\nvoid TIM2_IRQHandler(void)
\n{
\nif( TIM_GetITStatus(TIM2,TIM_IT_Update)==SET )
\n{<\/p>\n

TIM_ClearITPendingBit(TIM2,TIM_IT_Update);
\n}
\n}<\/p>\n

*\/<\/p>\n

—————————–<\/span><\/p>\n

\n

\u5b9e\u4f8b\u4e006.1.1 \u5b9a\u65f6\u5668\u5b9a\u65f6\u4e2d\u65ad<\/p>\n

main.c\u2193<\/p>\n

—————————–<\/p>\n

#include "stm32f10x.h" \/\/ Device header
\n#include "Delay.h"
\n#include "OLED.h"
\n#include "Timer.h"<\/p>\n

uint16_t Num;<\/p>\n

int main(void)
\n{
\nOLED_Init();
\nTimer_Init();<\/p>\n

OLED_ShowString(1,1,"Num:");
\nOLED_ShowString(2,1,"CNT:");<\/p>\n

while(1)
\n{
\nOLED_ShowNum(1,5,Num,5);
\nOLED_ShowNum(2,5,TIM_GetCounter(TIM2),5);<\/p>\n

}
\n}<\/p>\n

void TIM2_IRQHandler(void)
\n{
\nif( TIM_GetITStatus(TIM2,TIM_IT_Update)==SET )
\n{
\nNum ++;
\nTIM_ClearITPendingBit(TIM2,TIM_IT_Update);
\n}
\n}<\/p>\n

—————————–<\/p>\n

\"\"<\/p>\n

\n

13\u3001\u5b9e\u4f8b\u4e8c6.2.1 \u5b9a\u65f6\u5668\u5916\u90e8\u65f6\u949f<\/p>\n

\u6211\u4eec\u5220\u53bb\u4f7f\u7528\u5185\u90e8\u65f6\u949f\u7684\u4ee3\u7801：<\/p>\n

TIM_InternalClockConfig(TIM2);<\/span><\/p>\n

\u6539\u4e3a\u4f7f\u7528\u5916\u90e8\u65f6\u949f2，\u5176\u4e2d0x0F\u662f\u53c2\u6570 ExtTRGFilter \u6570\u5b57\u6ee4\u6ce2，\u53d6\u503c 0x00 ~ 0x0F，0x00：\u5173\u95ed\u6ee4\u6ce2，0x0F：\u6700\u5927\u6ee4\u6ce2，\u9700\u8981\u8fde\u7eed 8 \u4e2a\u91c7\u6837\u5468\u671f\u7535\u5e73\u4e0d\u53d8\u624d\u5224\u5b9a\u6709\u6548\u8fb9\u6cbf，\u6291\u5236\u6296\u52a8，\u76f8\u5e94\u7684，\u54cd\u5e94\u65f6\u95f4\u53d8\u6162<\/p>\n

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);<\/span><\/p>\n

\n

GPIO_InitTypeDef GPIO_InitStructure;<\/span><\/p>\n

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;<\/span><\/p>\n

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;<\/span><\/p>\n

GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;<\/span><\/p>\n

GPIO_Init(GPIOA,&GPIO_InitStructure);<\/span><\/p>\n

\n

TIM_ETRClockMode2Config(TIM2,TIM_ExtTRGPSC_OFF,TIM_ExtTRGPolarity_NonInverted<\/span>,0x0F<\/span><\/span>);<\/span><\/p>\n

\n

Timer<\/span>.c<\/span>（\u5b9a\u65f6\u5668）\u2193<\/span><\/p>\n

—————————–<\/span><\/p>\n

#include "stm32f10x.h" \/\/ Device header<\/p>\n

void Timer_Init(void)
\n{
\nRCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);
\nRCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);<\/p>\n

GPIO_InitTypeDef GPIO_InitStructure;
\nGPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
\nGPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
\nGPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
\nGPIO_Init(GPIOA,&GPIO_InitStructure);<\/p>\n

TIM_ETRClockMode2Config(TIM2,TIM_ExtTRGPSC_OFF,TIM_ExtTRGPolarity_NonInverted,0x0F);<\/p>\n

TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
\nTIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
\nTIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
\nTIM_TimeBaseInitStructure.TIM_Period = 10 – 1;\/\/\u91cd\u88c5\u503c（\u8bb0\u591a\u5c11\u6b21\u6570\u6ea2\u51fa\u4e00\u6b21）
\nTIM_TimeBaseInitStructure.TIM_Prescaler = 1 – 1;\/\/\u9884\u5206\u9891\u503c（\u5185\u90e8\u65f6\u949f\u7535\u5e73\u4e00\u4e0a\u4e00\u4e0b\u591a\u5c11\u6b21\u8ba1\u4e00\u4e2a\u6570）
\nTIM_TimeBaseInitStructure.TIM_RepetitionCounter = 0;
\nTIM_TimeBaseInit(TIM2,&TIM_TimeBaseInitStructure);<\/p>\n

TIM_ClearFlag(TIM2,TIM_FLAG_Update);
\nTIM_ITConfig(TIM2,TIM_IT_Update,ENABLE);<\/p>\n

NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);<\/p>\n

NVIC_InitTypeDef NVIC_InitStructure;
\nNVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
\nNVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
\nNVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
\nNVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
\nNVIC_Init(&NVIC_InitStructure);<\/p>\n

TIM_Cmd(TIM2,ENABLE);<\/p>\n

}<\/p>\n

uint16_t Timer_GetCounter(void)
\n{
\nreturn TIM_GetCounter(TIM2);
\n}<\/p>\n

\/*
\nvoid TIM2_IRQHandler(void)
\n{
\nif( TIM_GetITStatus(TIM2,TIM_IT_Update)==SET )
\n{<\/p>\n

TIM_ClearITPendingBit(TIM2,TIM_IT_Update);
\n}
\n}<\/p>\n

*\/<\/p>\n

—————————–<\/span><\/p>\n

main.c\u2193<\/p>\n

—————————–<\/p>\n

#include "stm32f10x.h" \/\/ Device header
\n#include "Delay.h"
\n#include "OLED.h"
\n#include "Timer.h"<\/p>\n

uint16_t Num;<\/p>\n

int main(void)
\n{
\nOLED_Init();
\nTimer_Init();<\/p>\n

OLED_ShowString(1,1,"Num:");
\nOLED_ShowString(2,1,"CNT:");<\/p>\n

while(1)
\n{
\nOLED_ShowNum(1,5,Num,5);
\nOLED_ShowNum(2,5,Timer_GetCounter(),5);<\/p>\n

}
\n}<\/p>\n

void TIM2_IRQHandler(void)
\n{
\nif( TIM_GetITStatus(TIM2,TIM_IT_Update)==SET )
\n{
\nNum ++;
\nTIM_ClearITPendingBit(TIM2,TIM_IT_Update);
\n}
\n}<\/p>\n

—————————–<\/p>\n

\"\"<\/p>\n<\/p>\n

\u4e8c\u3001\u603b\u7ed3<\/h2>\n

\u672c\u6587\u56f4\u7ed5 STM32 \u7684 TIM \u5b9a\u65f6\u5668\u5c55\u5f00，\u7cfb\u7edf\u68b3\u7406\u4e86\u5b9a\u65f6\u4e2d\u65ad\u7684\u5b8c\u6574\u77e5\u8bc6\u4f53\u7cfb\u3002\u9996\u5148\u4ecb\u7ecd\u4e86 TIM \u7684\u57fa\u672c\u6982\u5ff5\u4e0e\u4e09\u79cd\u5b9a\u65f6\u5668\u7c7b\u578b（\u57fa\u672c\u3001\u901a\u7528\u3001\u9ad8\u7ea7），\u5e76\u91cd\u70b9\u8bb2\u89e3\u4e86\u65f6\u57fa\u5355\u5143\u4e2d\u9884\u5206\u9891\u5668\u3001\u8ba1\u6570\u5668\u4e0e\u81ea\u52a8\u91cd\u88c5\u5bc4\u5b58\u5668\u7684\u5de5\u4f5c\u539f\u7406\u3002\u968f\u540e\u901a\u8fc7\u9884\u5206\u9891\u5668\u65f6\u5e8f\u3001\u8ba1\u6570\u5668\u65f6\u5e8f\u4ee5\u53ca\u6709\u65e0\u9884\u88c5\u65f6\u5e8f\u7684\u5bf9\u6bd4，\u6df1\u5165\u8bf4\u660e\u4e86\u8ba1\u6570\u9891\u7387\u3001\u6ea2\u51fa\u9891\u7387\u7684\u8ba1\u7b97\u65b9\u6cd5，\u4ee5\u53ca\u7f13\u51b2\u5bc4\u5b58\u5668\u5728\u53c2\u6570\u66f4\u65b0\u4e2d\u7684\u5173\u952e\u4f5c\u7528\u3002<\/p>\n

\u5728\u65f6\u949f\u90e8\u5206，\u672c\u6587\u8be6\u7ec6\u89e3\u6790\u4e86 RCC \u65f6\u949f\u6811\u7684\u914d\u7f6e\u6d41\u7a0b，\u5305\u62ec\u5185\u90e8\u65f6\u949f\u542f\u52a8\u3001\u5916\u90e8\u6676\u632f\u500d\u9891\u5230 72MHz \u7684\u5207\u6362\u8fc7\u7a0b，\u4ee5\u53ca AHB\u3001APB1\u3001APB2 \u603b\u7ebf\u7684\u5206\u9891\u5173\u7cfb，\u5e2e\u52a9\u8bfb\u8005\u7406\u89e3\u5b9a\u65f6\u5668\u57fa\u51c6\u65f6\u949f\u7684\u6765\u6e90\u3002\u6700\u540e\u901a\u8fc7\u4e24\u4e2a\u5b9e\u6218\u5b9e\u4f8b\u2014\u2014\u5b9a\u65f6\u5668\u5b9a\u65f6\u4e2d\u65ad\u4e0e\u5b9a\u65f6\u5668\u5916\u90e8\u65f6\u949f，\u6f14\u793a\u4e86\u4ece\u5e93\u51fd\u6570\u521d\u59cb\u5316\u3001NVIC \u4e2d\u65ad\u914d\u7f6e\u5230\u4e3b\u7a0b\u5e8f\u8c03\u7528\u7684\u5b8c\u6574\u5f00\u53d1\u6d41\u7a0b，\u5e76\u7ed9\u51fa\u4e86\u53ef\u76f4\u63a5\u8fd0\u884c\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u638c\u63e1 TIM \u5b9a\u65f6\u4e2d\u65ad，\u662f\u5b66\u4e60 STM32 \u5916\u8bbe\u5f00\u53d1\u7684\u91cd\u8981\u57fa\u7840\u3002\u7406\u89e3\u65f6\u57fa\u5355\u5143\u7684\u8ba1\u6570\u903b\u8f91\u3001\u9884\u5206\u9891\u4e0e\u91cd\u88c5\u503c\u7684\u914d\u5408\u5173\u7cfb，\u4ee5\u53ca\u65f6\u949f\u6811\u7684\u65f6\u949f\u6765\u6e90，\u662f\u7075\u6d3b\u8fd0\u7528\u5b9a\u65f6\u5668\u7684\u5173\u952e\u3002\u5efa\u8bae\u8bfb\u8005\u5728\u7406\u89e3\u539f\u7406\u7684\u57fa\u7840\u4e0a，\u52a8\u624b\u5b8c\u6210\u4e24\u4e2a\u5b9e\u4f8b\u7684\u4ee3\u7801\u7f16\u5199\u4e0e\u8c03\u8bd5，\u5e76\u5c1d\u8bd5\u4fee\u6539\u9884\u5206\u9891\u503c\u548c\u91cd\u88c5\u503c，\u89c2\u5bdf\u5b9a\u65f6\u65f6\u95f4\u7684\u53d8\u5316，\u4ece\u800c\u52a0\u6df1\u5bf9\u5b9a\u65f6\u5668\u5de5\u4f5c\u673a\u5236\u7684\u7406\u89e3\u3002<\/p>\n<\/p>\n

\u90fd\u770b\u5230\u8fd9\u4e86\u70b9\u70b9\u8d5e\u5427！<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5728\u4e0a\u4e00\u7ae0\u4e2d，\u6211\u4eec\u5b66\u4e60\u4e86 EXTI \u5916\u90e8\u4e2d\u65ad，\u638c\u63e1\u4e86\u5982\u4f55\u901a\u8fc7\u5916\u90e8\u5f15\u811a\u7684\u7535\u5e73\u53d8\u5316\u6765\u89e6\u53d1\u4e2d\u65ad，\u4ece\u800c\u8ba9 CPU \u53ca\u65f6\u54cd\u5e94\u5916\u90e8\u4e8b\u4ef6\u3002\u7136\u800c\u5728\u5b9e\u9645\u7684\u5d4c\u5165\u5f0f\u5f00\u53d1\u4e2d，\u9664\u4e86\u9700\u8981\u54cd\u5e94\u5916\u90e8\u4e8b\u4ef6，\u6211\u4eec\u8fd8\u7ecf\u5e38\u9700\u8981\u7cbe\u786e\u5730\u63a7\u5236\u65f6\u95f4，\u6bd4\u5982\u5b9a\u65f6\u91c7\u96c6\u4f20\u611f\u5668\u6570\u636e\u3001\u5468\u671f\u6027\u5237\u65b0\u663e\u793a\u3001\u4ea7\u751f PWM \u6ce2\u5f62\u7b49\u3002\u5982\u679c\u5355\u7eaf\u4f9d\u9760\u4e3b\u5faa\u73af\u7684\u5ef6\u65f6\u51fd\u6570，\u4e0d\u4ec5\u4f1a\u963b\u585e CPU \u7684\u6267\u884c，\u800c\u4e14\u96be\u4ee5\u4fdd\u8bc1\u65f6\u95f4\u7684\u51c6\u786e\u6027\u3002\u8fd9\u65f6，S<\/p>\n","protected":false},"author":2,"featured_media":101426,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[217,270,371,269,305],"topic":[],"class_list":["post-101446","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-stm32","tag-270","tag-371","tag-269","tag-305"],"yoast_head":"\nTIM\u5b9a\u65f6\u4e2d\u65ad\uff08STM32\u6807\u51c6\u5e93\u5b66\u4e60\u7b14\u8bb0\uff09 - 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