{"id":10020866,"date":"2025-06-30T10:17:10","date_gmt":"2025-06-30T02:17:10","guid":{"rendered":"https:\/\/itmax.cn\/?p=10020866"},"modified":"2025-06-30T10:17:10","modified_gmt":"2025-06-30T02:17:10","slug":"stm32-%e7%9a%84%e7%bb%8f%e5%85%b8%e5%8a%9f%e8%83%bd%e5%93%aa%e4%ba%9b%e5%bf%85%e9%a1%bb%e6%8e%8c%e6%8f%a1%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10020866","title":{"rendered":"STM32 \u7684\u7ecf\u5178\u529f\u80fd\u54ea\u4e9b\u5fc5\u987b\u638c\u63e1\uff1f"},"content":{"rendered":"<p>\u4f5c\u4e3a\u4e00\u4e2a\u5728\u5d4c\u5165\u5f0f\u9886\u57df\u6478\u722c\u6eda\u6253\u4e8611\u5e74\u7684\u8001\u5175\uff0c\u4eca\u5929\u60f3\u548c\u5927\u5bb6\u6df1\u5ea6\u804a\u804aSTM32\u8fd9\u4e2a\u8ba9\u65e0\u6570\u5de5\u7a0b\u5e08\u53c8\u7231\u53c8\u6068\u7684&#8221;\u5c0f\u5bb6\u4f19&#8221;\u3002\u8bf4\u5b9e\u8bdd\uff0c\u5f53\u5e74\u521a\u4ece\u673a\u68b0\u4e13\u4e1a\u88ab\u8c03\u5242\u5230\u7535\u5b50\u4e13\u4e1a\u7684\u65f6\u5019\uff0c\u6211\u8fde\u4ec0\u4e48\u662f\u5355\u7247\u673a\u90fd\u4e0d\u77e5\u9053\uff0c\u66f4\u522b\u63d0STM32\u4e86\u3002\u90a3\u65f6\u5019\u62ff\u7740\u539a\u539a\u7684STM32\u53c2\u8003\u624b\u518c\uff0c\u5bc6\u5bc6\u9ebb\u9ebb\u7684\u5bc4\u5b58\u5668\u914d\u7f6e\u8ba9\u6211\u5934\u660f\u773c\u82b1\uff0c\u5fc3\u60f3\u8fd9\u8f88\u5b50\u80fd\u641e\u61c2\u8fd9\u73a9\u610f\u513f\u5417\uff1f\u73b0\u5728\u56de\u60f3\u8d77\u6765\uff0c\u90a3\u6bb5\u4ece\u96f6\u5f00\u59cb\u5b66\u4e60STM32\u7684\u65e5\u5b50\uff0c\u771f\u7684\u662f\u4e00\u628a\u8f9b\u9178\u6cea\uff0c\u4f46\u4e5f\u6b63\u662f\u8fd9\u4e9b\u7ecf\u5386\u8ba9\u6211\u4ece\u4e00\u4e2a\u5d4c\u5165\u5f0f\u5c0f\u767d\u6210\u957f\u4e3a\u4eca\u5929\u80fd\u72ec\u5f53\u4e00\u9762\u7684\u6280\u672f\u8001\u9e1f\u3002<\/p>\n<p><strong>\u4e3a\u4ec0\u4e48STM32\u5728\u5d4c\u5165\u5f0f\u754c\u5982\u6b64\u91cd\u8981\uff1f<\/strong><\/p>\n<p>\u5148\u8bf4\u8bf4\u4e3a\u4ec0\u4e48\u8981\u638c\u63e1STM32\u5427\u3002\u8bb0\u5f97\u6211\u521a\u5165\u804c\u53a6\u95e8\u90a3\u5bb6\u516c\u53f8\u7684\u65f6\u5019\uff0c\u867d\u7136\u62ff\u7684\u662f\u673a\u68b0offer\u4f46\u88ab\u8c03\u5242\u5230\u4e86\u7535\u5b50\u90e8\u95e8\uff0c\u5e08\u5085\u5c31\u8ddf\u6211\u8bf4\uff1a&#8221;\u5c0f\u5b50\uff0c\u60f3\u5728\u5d4c\u5165\u5f0f\u8fd9\u884c\u6df7\u5f97\u597d\uff0cSTM32\u5fc5\u987b\u5f97\u73a9\u5f97\u6e9c\uff0c\u8fd9\u662f\u57fa\u672c\u529f\u3002&#8221;\u5f53\u65f6\u6211\u8fd8\u4e0d\u4ee5\u4e3a\u7136\uff0c\u5fc3\u60f3\u4e0d\u5c31\u662f\u4e2a\u5355\u7247\u673a\u561b\uff0c\u6bd4\u8d77\u590d\u6742\u7684\u673a\u68b0\u8bbe\u8ba1\u80fd\u6709\u591a\u96be\uff1f\u7ed3\u679c\u73b0\u5b9e\u72e0\u72e0\u5730\u7ed9\u4e86\u6211\u4e00\u5df4\u638c\uff0c\u7b2c\u4e00\u4e2a\u9879\u76ee\u5c31\u8ba9\u6211\u4f53\u9a8c\u4e86\u4ec0\u4e48\u53eb&#8221;\u7406\u60f3\u5f88\u4e30\u6ee1\uff0c\u73b0\u5b9e\u5f88\u9aa8\u611f&#8221;\u3002<\/p>\n<p>STM32\u4f5c\u4e3aARM Cortex-M\u5185\u6838\u768432\u4f4d\u5fae\u63a7\u5236\u5668\uff0c\u51e0\u4e4e\u7edf\u6cbb\u4e86\u6574\u4e2a\u4e2d\u4f4e\u7aef\u5d4c\u5165\u5f0f\u5e02\u573a\u3002\u65e0\u8bba\u662f\u5de5\u63a7\u8bbe\u5907\u3001\u6c7d\u8f66\u7535\u5b50\u3001\u6d88\u8d39\u7535\u5b50\uff0c\u8fd8\u662f\u73b0\u5728\u706b\u70ed\u7684\u7269\u8054\u7f51\u8bbe\u5907\uff0c\u5230\u5904\u90fd\u80fd\u770b\u5230\u5b83\u7684\u8eab\u5f71\u3002\u6211\u540e\u6765\u5728\u4e16\u754c500\u5f3a\u5916\u4f01\u505a\u6c7d\u8f66\u7535\u5b50\u7684\u90a3\u51e0\u5e74\uff0c\u63a5\u89e6\u7684\u9879\u76ee\u4e2d\u670980%\u90fd\u662f\u57fa\u4e8eSTM32\u5e73\u53f0\u7684\u3002\u4e3a\u4ec0\u4e48\uff1f\u56e0\u4e3a\u5b83\u6027\u4ef7\u6bd4\u9ad8\u3001\u751f\u6001\u5b8c\u5584\u3001\u8d44\u6599\u4e30\u5bcc\uff0c\u6700\u5173\u952e\u7684\u662f\u5751\u5df2\u7ecf\u88ab\u524d\u4eba\u8e29\u5f97\u5dee\u4e0d\u591a\u4e86\uff0c\u4f60\u9047\u5230\u7684\u95ee\u9898\u57fa\u672c\u90fd\u80fd\u5728\u7f51\u4e0a\u627e\u5230\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<p>\u66f4\u91cd\u8981\u7684\u662f\uff0cSTM32\u7684\u5b66\u4e60\u66f2\u7ebf\u8bbe\u8ba1\u5f97\u5f88\u4eba\u6027\u5316\u3002\u4ece\u7b80\u5355\u7684GPIO\u63a7\u5236\u5230\u590d\u6742\u7684\u591a\u5a92\u4f53\u5904\u7406\uff0c\u4ece\u4f4e\u7aef\u7684F0\u7cfb\u5217\u5230\u9ad8\u6027\u80fd\u7684H7\u7cfb\u5217\uff0c\u603b\u6709\u4e00\u6b3e\u9002\u5408\u4f60\u7684\u9700\u6c42\u3002\u800c\u4e14\u4e00\u65e6\u638c\u63e1\u4e86\u4e00\u4e2a\u7cfb\u5217\u7684\u5f00\u53d1\u65b9\u6cd5\uff0c\u5176\u4ed6\u7cfb\u5217\u57fa\u672c\u4e0a\u5c31\u662f\u4e3e\u4e00\u53cd\u4e09\u7684\u4e8b\u60c5\u3002\u8fd9\u79cd\u4e00\u81f4\u6027\u5bf9\u4e8e\u6211\u4eec\u5f00\u53d1\u8005\u6765\u8bf4\u5b9e\u5728\u592a\u53cb\u597d\u4e86\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"723\" height=\"487\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdkCgJ\" alt=\"\" title=\"\"><\/p>\n<p><strong>1. GPIO\u64cd\u4f5c &#8211; \u6570\u5b57\u4e16\u754c\u7684\u57fa\u7840\u8bed\u8a00<\/strong><\/p>\n<p>\u5982\u679c\u8bf4C\u8bed\u8a00\u7684\u5165\u95e8\u662f&#8221;Hello World&#8221;\uff0c\u90a3\u4e48STM32\u7684\u5165\u95e8\u5c31\u662f\u70b9\u4eae\u4e00\u4e2aLED\u3002\u8fd9\u53e5\u8bdd\u542c\u8d77\u6765\u7b80\u5355\uff0c\u4f46\u80cc\u540e\u8574\u542b\u7684\u77e5\u8bc6\u91cf\u5176\u5b9e\u76f8\u5f53\u4e30\u5bcc\u3002\u6211\u8bb0\u5f97\u5f53\u5e74\u7b2c\u4e00\u6b21\u6210\u529f\u70b9\u4eaeLED\u7684\u90a3\u4e2a\u77ac\u95f4\uff0c\u867d\u7136\u53ea\u662f\u4e00\u4e2a\u5c0f\u5c0f\u7684\u53d1\u5149\u4e8c\u6781\u7ba1\u4eae\u4e86\u8d77\u6765\uff0c\u4f46\u90a3\u79cd\u6210\u5c31\u611f\u7b80\u76f4\u65e0\u6cd5\u8a00\u55bb\uff01\u90a3\u4e00\u523b\u6211\u89c9\u5f97\u81ea\u5df1\u5c31\u50cf\u662f\u638c\u63e1\u4e86\u9b54\u6cd5\u7684\u5deb\u5e08\uff0c\u80fd\u591f\u7528\u4ee3\u7801\u63a7\u5236\u7269\u7406\u4e16\u754c\u3002<\/p>\n<p>GPIO(General Purpose Input\/Output)\u901a\u7528\u8f93\u5165\u8f93\u51fa\u7aef\u53e3\uff0c\u8bf4\u767d\u4e86\u5c31\u662fSTM32\u4e0e\u5916\u754c\u4ea4\u6d41\u7684&#8221;\u5634\u5df4\u548c\u8033\u6735&#8221;\u3002\u4f46\u8fd9\u4e2a\u770b\u4f3c\u7b80\u5355\u7684\u63a5\u53e3\u80cc\u540e\uff0c\u5176\u5b9e\u9690\u85cf\u7740\u76f8\u5f53\u590d\u6742\u7684\u7535\u8def\u7ed3\u6784\u548c\u914d\u7f6e\u9009\u9879\u3002\u6bcf\u4e2aGPIO\u5f15\u811a\u90fd\u53ef\u4ee5\u914d\u7f6e\u4e3a\u8f93\u5165\u6216\u8f93\u51fa\u6a21\u5f0f\uff0c\u8fd8\u80fd\u8bbe\u7f6e\u4e0d\u540c\u7684\u9a71\u52a8\u80fd\u529b\u3001\u4e0a\u4e0b\u62c9\u7535\u963b\u3001\u8f93\u51fa\u7c7b\u578b\u7b49\u7b49\u3002<\/p>\n<p>\u5728\u8f93\u51fa\u6a21\u5f0f\u4e0b\uff0cGPIO\u53ef\u4ee5\u914d\u7f6e\u4e3a\u63a8\u633d\u8f93\u51fa\u6216\u5f00\u6f0f\u8f93\u51fa\u3002\u63a8\u633d\u8f93\u51fa\u80fd\u591f\u63d0\u4f9b\u5f3a\u9a71\u52a8\u80fd\u529b\uff0c\u53ef\u4ee5\u76f4\u63a5\u9a71\u52a8LED\u3001\u7ee7\u7535\u5668\u7b49\u8d1f\u8f7d\uff1b\u800c\u5f00\u6f0f\u8f93\u51fa\u5219\u9700\u8981\u5916\u90e8\u4e0a\u62c9\u7535\u963b\uff0c\u5e38\u7528\u4e8eI2C\u30011-Wire\u7b49\u603b\u7ebf\u534f\u8bae\u3002\u6211\u521a\u5f00\u59cb\u7684\u65f6\u5019\u603b\u662f\u641e\u6df7\u8fd9\u4e24\u79cd\u6a21\u5f0f\uff0c\u6709\u4e00\u6b21\u505a\u9879\u76ee\u9700\u8981\u63a7\u5236\u4e00\u4e2a3.3V\u7cfb\u7edf\u53bb\u9a71\u52a85V\u7684\u5668\u4ef6\uff0c\u6b7b\u6d3b\u4e0dwork\uff0c\u540e\u6765\u624d\u660e\u767d\u8981\u7528\u5f00\u6f0f\u8f93\u51fa\u914d\u5408\u5916\u90e85V\u4e0a\u62c9\u7535\u963b\u3002<\/p>\n<p>\u5728\u8f93\u5165\u6a21\u5f0f\u4e0b\uff0cGPIO\u53ef\u4ee5\u914d\u7f6e\u4e3a\u6d6e\u7a7a\u8f93\u5165\u3001\u4e0a\u62c9\u8f93\u5165\u6216\u4e0b\u62c9\u8f93\u5165\u3002\u6d6e\u7a7a\u8f93\u5165\u9002\u5408\u8bfb\u53d6\u6709\u786e\u5b9a\u8f93\u51fa\u72b6\u6001\u7684\u4fe1\u53f7\uff0c\u800c\u4e0a\u62c9\/\u4e0b\u62c9\u8f93\u5165\u5219\u4e3a\u4fe1\u53f7\u63d0\u4f9b\u4e00\u4e2a\u9ed8\u8ba4\u72b6\u6001\uff0c\u907f\u514d\u51fa\u73b0\u4e0d\u786e\u5b9a\u7684\u903b\u8f91\u7535\u5e73\u3002\u6211\u8bb0\u5f97\u6709\u4e00\u6b21\u5728\u8c03\u8bd5\u6309\u952e\u68c0\u6d4b\u7684\u4ee3\u7801\u65f6\uff0c\u6309\u952e\u65f6\u7075\u65f6\u4e0d\u7075\uff0c\u540e\u6765\u53d1\u73b0\u662f\u56e0\u4e3a\u6ca1\u6709\u914d\u7f6e\u4e0a\u62c9\u7535\u963b\uff0cGPIO\u5f15\u811a\u5904\u4e8e\u60ac\u6d6e\u72b6\u6001\uff0c\u5bb9\u6613\u53d7\u5230\u5e72\u6270\u3002<\/p>\n<p>\u9664\u4e86\u57fa\u672c\u7684\u8f93\u5165\u8f93\u51fa\u529f\u80fd\uff0cGPIO\u8fd8\u6709\u4e00\u4e9b\u9ad8\u7ea7\u7279\u6027\u3002\u6bd4\u5982\u8f93\u51fa\u901f\u5ea6\u63a7\u5236\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u4e3a2MHz\u300125MHz\u300150MHz\u6216100MHz\uff0c\u8fd9\u4e3b\u8981\u5f71\u54cd\u4fe1\u53f7\u7684\u4e0a\u5347\/\u4e0b\u964d\u65f6\u95f4\u548cEMI\u7279\u6027\u3002\u5bf9\u4e8e\u9ad8\u901f\u4fe1\u53f7\uff0c\u9700\u8981\u9009\u62e9\u9ad8\u8f93\u51fa\u901f\u5ea6\uff1b\u800c\u5bf9\u4e8e\u4f4e\u901f\u63a7\u5236\u4fe1\u53f7\uff0c\u9009\u62e9\u4f4e\u8f93\u51fa\u901f\u5ea6\u53ef\u4ee5\u51cf\u5c11\u7535\u78c1\u5e72\u6270\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\uff0cGPIO\u7684\u5e94\u7528\u573a\u666f\u51e0\u4e4e\u65e0\u5904\u4e0d\u5728\u3002\u63a7\u5236\u7ee7\u7535\u5668\u5f00\u5173\u5b9e\u73b0\u8bbe\u5907\u7684\u901a\u65ad\u63a7\u5236\uff1b\u8bfb\u53d6\u9650\u4f4d\u5f00\u5173\u72b6\u6001\u76d1\u63a7\u673a\u68b0\u4f4d\u7f6e\uff1b\u9a71\u52a8LED\u6307\u793a\u706f\u663e\u793a\u7cfb\u7edf\u72b6\u6001\uff1b\u63a7\u5236\u8702\u9e23\u5668\u53d1\u51fa\u62a5\u8b66\u4fe1\u53f7\uff1b\u4e0e\u5176\u4ed6\u82af\u7247\u8fdb\u884c\u7b80\u5355\u7684\u63e1\u624b\u901a\u4fe1\u7b49\u7b49\u3002\u6211\u5728\u7b2c\u4e00\u4e2a\u5546\u4e1a\u9879\u76ee\u4e2d\u5c31\u6df1\u523b\u4f53\u4f1a\u5230\u4e86GPIO\u7684\u91cd\u8981\u6027\uff0c\u90a3\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u5de5\u63a7\u8bbe\u5907\uff0c\u9700\u8981\u63a7\u52368\u8def\u7ee7\u7535\u5668\u8f93\u51fa\u548c\u8bfb\u53d616\u4e2a\u5f00\u5173\u91cf\u8f93\u5165\u3002<\/p>\n<p>\u521a\u5f00\u59cb\u6211\u5929\u771f\u5730\u4ee5\u4e3a\u5f88\u7b80\u5355\uff0c\u4e0d\u5c31\u662f\u8bbe\u7f6e\u51e0\u4e2a\u5bc4\u5b58\u5668\u561b\uff1f\u7ed3\u679c\u5728\u8c03\u8bd5\u8fc7\u7a0b\u4e2d\u9047\u5230\u4e86\u5404\u79cd\u59cb\u6599\u672a\u53ca\u7684\u95ee\u9898\u3002\u6309\u952e\u6296\u52a8\u8ba9\u6211\u7b2c\u4e00\u6b21\u89c1\u8bc6\u5230\u4e86\u673a\u68b0\u63a5\u89e6\u7684&#8221;\u4e0d\u9760\u8c31&#8221;\uff0c\u4e00\u4e2a\u6309\u952e\u6309\u4e0b\u53bb\u53ef\u80fd\u4ea7\u751f\u597d\u51e0\u4e2a\u8109\u51b2\u4fe1\u53f7\uff1b\u7ee7\u7535\u5668\u9a71\u52a8\u7535\u6d41\u4e0d\u591f\u8ba9\u6211\u660e\u767d\u4e86GPIO\u8f93\u51fa\u80fd\u529b\u7684\u9650\u5236\uff0c\u5fc5\u987b\u52a0\u9a71\u52a8\u7535\u8def\u624d\u80fd\u53ef\u9760\u63a7\u5236\uff1bIO\u53e3\u914d\u7f6e\u9519\u8bef\u5bfc\u81f4\u7684\u83ab\u540d\u5176\u5999\u7684\u7cfb\u7edf\u5f02\u5e38\uff0c\u8ba9\u6211\u5b66\u4f1a\u4e86\u4ed4\u7ec6\u9605\u8bfb\u6570\u636e\u624b\u518c\u7684\u91cd\u8981\u6027\u3002<\/p>\n<p>\u7279\u522b\u662f\u6309\u952e\u53bb\u6296\u52a8\u7684\u5904\u7406\uff0c\u8fd9\u4e2a\u770b\u4f3c\u7b80\u5355\u7684\u95ee\u9898\u5176\u5b9e\u6709\u5f88\u591a\u79cd\u89e3\u51b3\u65b9\u6848\u3002\u786c\u4ef6\u53bb\u6296\u53ef\u4ee5\u7528RC\u6ee4\u6ce2\u7535\u8def\uff0c\u8f6f\u4ef6\u53bb\u6296\u53ef\u4ee5\u7528\u5ef6\u65f6\u68c0\u6d4b\u3001\u72b6\u6001\u673a\u3001\u5b9a\u65f6\u5668\u91c7\u6837\u7b49\u65b9\u6cd5\u3002\u6211\u6700\u7ec8\u9009\u62e9\u4e86\u5b9a\u65f6\u5668\u5b9a\u671f\u91c7\u6837\u7684\u65b9\u6cd5\uff0c\u65e2\u80fd\u6709\u6548\u53bb\u9664\u6296\u52a8\uff0c\u53c8\u4e0d\u4f1a\u963b\u585e\u4e3b\u7a0b\u5e8f\u7684\u6267\u884c\u3002\u8fd9\u79cd\u65b9\u6cd5\u7684\u5173\u952e\u662f\u8981\u7406\u89e3\u6309\u952e\u6296\u52a8\u7684\u65f6\u95f4\u7279\u6027\uff0c\u4e00\u822c\u673a\u68b0\u6309\u952e\u7684\u6296\u52a8\u65f6\u95f4\u5728\u51e0\u6beb\u79d2\u5230\u51e0\u5341\u6beb\u79d2\u4e4b\u95f4\u3002<\/p>\n<p><img decoding=\"async\" width=\"723\" height=\"487\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdkCgK\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><strong>2. \u65f6\u949f\u7cfb\u7edf &#8211; STM32\u7684\u751f\u547d\u8282\u62cd\u5668<\/strong><\/p>\n<p>\u5982\u679c\u8bf4GPIO\u662fSTM32\u7684\u624b\u811a\uff0c\u90a3\u4e48\u65f6\u949f\u7cfb\u7edf\u5c31\u662f\u5b83\u7684\u5fc3\u810f\u548c\u8840\u7ba1\u3002\u6211\u5f53\u5e74\u5b66\u4e60STM32\u65f6\u949f\u7cfb\u7edf\u7684\u65f6\u5019\uff0c\u770b\u7740\u90a3\u5f20\u590d\u6742\u5f97\u50cf\u8718\u86db\u7f51\u4e00\u6837\u7684\u65f6\u949f\u6811\u56fe\uff0c\u5934\u90fd\u5927\u4e86\u3002\u4ec0\u4e48HSE\u3001HSI\u3001PLL\u3001SYSCLK\u3001HCLK\u3001PCLK1\u3001PCLK2\uff0c\u5bc6\u5bc6\u9ebb\u9ebb\u7684\u7ebf\u6761\u3001\u5206\u9891\u5668\u3001\u9009\u62e9\u5668\uff0c\u7b80\u76f4\u6bd4\u5927\u57ce\u5e02\u7684\u5730\u94c1\u7ebf\u8def\u56fe\u8fd8\u590d\u6742\uff01\u4f46\u662f\u968f\u7740\u5b66\u4e60\u7684\u6df1\u5165\uff0c\u6211\u9010\u6e10\u7406\u89e3\u4e86\u8fd9\u5957\u770b\u4f3c\u590d\u6742\u7cfb\u7edf\u80cc\u540e\u7684\u8bbe\u8ba1\u54f2\u5b66\u3002<\/p>\n<p>\u65f6\u949f\u7cfb\u7edf\u7684\u8bbe\u8ba1\u4f53\u73b0\u4e86STM32\u5de5\u7a0b\u5e08\u7684\u5320\u5fc3\u72ec\u8fd0\u3002\u4e0d\u540c\u7684\u5916\u8bbe\u5bf9\u65f6\u949f\u9891\u7387\u6709\u4e0d\u540c\u7684\u8981\u6c42\uff0c\u6709\u4e9b\u5916\u8bbe\u9700\u8981\u9ad8\u9891\u65f6\u949f\u6765\u4fdd\u8bc1\u5904\u7406\u901f\u5ea6\uff0c\u6709\u4e9b\u5916\u8bbe\u9700\u8981\u7cbe\u786e\u7684\u65f6\u949f\u6765\u4fdd\u8bc1\u65f6\u5e8f\u51c6\u786e\u6027\uff0c\u8fd8\u6709\u4e9b\u5916\u8bbe\u4e3a\u4e86\u7701\u7535\u9700\u8981\u4f4e\u9891\u65f6\u949f\u3002\u5982\u679c\u6240\u6709\u5916\u8bbe\u90fd\u7528\u540c\u4e00\u4e2a\u65f6\u949f\uff0c\u8981\u4e48\u6027\u80fd\u4e0d\u591f\uff0c\u8981\u4e48\u529f\u8017\u592a\u9ad8\u3002\u6240\u4ee5STM32\u8bbe\u8ba1\u4e86\u8fd9\u5957\u7075\u6d3b\u7684\u591a\u7ea7\u65f6\u949f\u5206\u914d\u7cfb\u7edf\u3002<\/p>\n<p>STM32\u7684\u65f6\u949f\u6e90\u4e3b\u8981\u6709\u51e0\u79cd\uff1a\u5916\u90e8\u9ad8\u901f\u65f6\u949fHSE\u901a\u5e38\u662f8MHz\u7684\u6676\u632f\uff0c\u63d0\u4f9b\u7a33\u5b9a\u7cbe\u786e\u7684\u9891\u7387\u57fa\u51c6\uff1b\u5185\u90e8\u9ad8\u901f\u65f6\u949fHSI\u662f16MHz\u7684RC\u632f\u8361\u5668\uff0c\u867d\u7136\u7cbe\u5ea6\u4e0d\u5982\u6676\u632f\u4f46\u80dc\u5728\u4e0d\u9700\u8981\u5916\u90e8\u5668\u4ef6\uff1b\u5185\u90e8\u4f4e\u901f\u65f6\u949fLSI\u7ea640kHz\uff0c\u4e3b\u8981\u7528\u4e8e\u770b\u95e8\u72d7\u7b49\u4f4e\u529f\u8017\u5e94\u7528\uff1b\u5916\u90e8\u4f4e\u901f\u65f6\u949fLSE\u901a\u5e38\u662f32.768kHz\u7684\u6676\u632f\uff0c\u4e13\u95e8\u4e3aRTC\u5b9e\u65f6\u65f6\u949f\u8bbe\u8ba1\u3002<\/p>\n<p>\u6700\u5173\u952e\u7684\u662fPLL\u9501\u76f8\u73af\uff0c\u5b83\u53ef\u4ee5\u5c06\u8f93\u5165\u65f6\u949f\u500d\u9891\u5230\u66f4\u9ad8\u7684\u9891\u7387\u3002\u6bd4\u5982\u75288MHz\u7684HSE\u4f5c\u4e3a\u8f93\u5165\uff0c\u901a\u8fc7PLL\u53ef\u4ee5\u4ea7\u751f72MHz\u3001168MHz\u751a\u81f3\u66f4\u9ad8\u7684\u7cfb\u7edf\u65f6\u949f\u3002PLL\u7684\u914d\u7f6e\u6d89\u53ca\u5230\u9884\u5206\u9891\u7cfb\u6570\u3001\u500d\u9891\u7cfb\u6570\u3001\u540e\u5206\u9891\u7cfb\u6570\u7b49\u591a\u4e2a\u53c2\u6570\uff0c\u8ba1\u7b97\u8d77\u6765\u76f8\u5f53\u590d\u6742\u3002\u6211\u8bb0\u5f97\u521a\u5f00\u59cb\u914d\u7f6ePLL\u7684\u65f6\u5019\uff0c\u7ecf\u5e38\u7b97\u9519\u53c2\u6570\u5bfc\u81f4\u7cfb\u7edf\u8d77\u4e0d\u6765\uff0c\u540e\u6765\u624d\u5b66\u4f1a\u7528ST\u63d0\u4f9b\u7684\u8ba1\u7b97\u5de5\u5177\u3002<\/p>\n<p>\u7cfb\u7edf\u65f6\u949fSYSCLK\u662fCPU\u7684\u5de5\u4f5c\u65f6\u949f\uff0c\u76f4\u63a5\u5f71\u54cd\u7a0b\u5e8f\u7684\u6267\u884c\u901f\u5ea6\u3002AHB\u603b\u7ebf\u65f6\u949fHCLK\u4e3a\u5185\u5b58\u63a7\u5236\u5668\u3001DMA\u7b49\u9ad8\u901f\u5916\u8bbe\u63d0\u4f9b\u65f6\u949f\u3002APB1\u548cAPB2\u603b\u7ebf\u65f6\u949f\u5219\u5206\u522b\u4e3a\u4f4e\u901f\u548c\u4e2d\u901f\u5916\u8bbe\u63d0\u4f9b\u65f6\u949f\uff0c\u5b83\u4eec\u7684\u9891\u7387\u901a\u5e38\u662fHCLK\u7684\u4e00\u534a\u6216\u56db\u5206\u4e4b\u4e00\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\uff0c\u65f6\u949f\u914d\u7f6e\u7684\u91cd\u8981\u6027\u600e\u4e48\u5f3a\u8c03\u90fd\u4e0d\u8fc7\u5206\u3002\u6211\u8bb0\u5f97\u6709\u4e00\u6b21\u5728\u8c03\u8bd5\u4e00\u4e2aCAN\u603b\u7ebf\u901a\u4fe1\u7684\u9879\u76ee\uff0c\u6ce2\u7279\u7387\u600e\u4e48\u8c03\u90fd\u4e0d\u5bf9\uff0c\u6570\u636e\u5e27\u8001\u662f\u51fa\u9519\u3002\u6298\u817e\u4e86\u6574\u6574\u4e00\u5929\uff0c\u6362\u4e86\u597d\u51e0\u79cd\u6ce2\u7279\u7387\u8bbe\u7f6e\uff0c\u751a\u81f3\u6000\u7591\u662f\u786c\u4ef6\u95ee\u9898\u3002\u6700\u540e\u53d1\u73b0\u662fAPB1\u7684\u65f6\u949f\u9891\u7387\u914d\u7f6e\u9519\u8bef\uff0c\u5bfc\u81f4CAN\u63a7\u5236\u5668\u7684\u65f6\u949f\u57fa\u51c6\u4e0d\u5bf9\uff0c\u6240\u4ee5\u65e0\u8bba\u600e\u4e48\u8bbe\u7f6e\u6ce2\u7279\u7387\u90fd\u65e0\u6cd5\u6b63\u786e\u901a\u4fe1\u3002\u90a3\u4e00\u523b\u6211\u6df1\u6df1\u5730\u4f53\u4f1a\u5230\u4e86\u65f6\u949f\u7cfb\u7edf\u914d\u7f6e\u7684\u91cd\u8981\u6027\uff0c\u4e00\u4e2a\u5c0f\u5c0f\u7684\u914d\u7f6e\u9519\u8bef\u5c31\u80fd\u8ba9\u6574\u4e2a\u7cfb\u7edf\u65e0\u6cd5\u6b63\u5e38\u5de5\u4f5c\u3002<\/p>\n<p>\u65f6\u949f\u914d\u7f6e\u8fd8\u8981\u8003\u8651\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u529f\u8017\u5e73\u8861\u3002\u5bf9\u4e8e\u9700\u8981\u9ad8\u6027\u80fd\u8ba1\u7b97\u7684\u5e94\u7528\uff0c\u6211\u4eec\u4f1a\u5f00\u542f\u6700\u9ad8\u9891\u7387\u7684\u7cfb\u7edf\u65f6\u949f\uff1b\u800c\u5bf9\u4e8e\u7535\u6c60\u4f9b\u7535\u7684\u4fbf\u643a\u8bbe\u5907\uff0c\u5219\u9700\u8981\u5728\u6ee1\u8db3\u6027\u80fd\u8981\u6c42\u7684\u524d\u63d0\u4e0b\u5c3d\u91cf\u964d\u4f4e\u65f6\u949f\u9891\u7387\u4ee5\u8282\u7701\u529f\u8017\u3002\u73b0\u4ee3STM32\u8fd8\u652f\u6301\u52a8\u6001\u65f6\u949f\u5207\u6362\uff0c\u53ef\u4ee5\u6839\u636e\u5b9e\u65f6\u7684\u5de5\u4f5c\u8d1f\u8f7d\u6765\u8c03\u6574\u65f6\u949f\u9891\u7387\uff0c\u8fd9\u79cd\u6280\u672f\u5728\u667a\u80fd\u624b\u673a\u7b49\u8bbe\u5907\u4e2d\u5e94\u7528\u5f88\u5e7f\u6cdb\u3002<\/p>\n<p>\u65f6\u949f\u7ba1\u7406\u8fd8\u6d89\u53ca\u5230\u5916\u8bbe\u65f6\u949f\u7684\u4f7f\u80fd\u63a7\u5236\u3002STM32\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u5927\u90e8\u5206\u5916\u8bbe\u65f6\u949f\u90fd\u662f\u5173\u95ed\u7684\uff0c\u9700\u8981\u7528\u5230\u7684\u65f6\u5019\u624d\u4f7f\u80fd\uff0c\u8fd9\u6837\u53ef\u4ee5\u663e\u8457\u964d\u4f4e\u529f\u8017\u3002\u4f46\u662f\u8fd9\u4e5f\u5e26\u6765\u4e86\u4e00\u4e2a\u5e38\u89c1\u7684\u5751\uff1a\u5fd8\u8bb0\u4f7f\u80fd\u5916\u8bbe\u65f6\u949f\u3002\u6211\u89c1\u8fc7\u592a\u591a\u521d\u5b66\u8005\u5728\u8fd9\u4e2a\u95ee\u9898\u4e0a\u683d\u8ddf\u5934\uff0c\u914d\u7f6e\u597d\u4e86GPIO\u3001\u4e32\u53e3\u7b49\u5916\u8bbe\uff0c\u5c31\u662f\u4e0d\u5de5\u4f5c\uff0c\u6700\u540e\u53d1\u73b0\u662f\u5fd8\u8bb0\u4e86\u65f6\u949f\u4f7f\u80fd\u3002<\/p>\n<p><strong>3. \u4e32\u53e3\u901a\u4fe1(UART) &#8211; \u5d4c\u5165\u5f0f\u4e16\u754c\u7684\u901a\u7528\u8bed\u8a00<\/strong><\/p>\n<p>\u4e32\u53e3\u901a\u4fe1\u53ef\u4ee5\u8bf4\u662f\u5d4c\u5165\u5f0f\u5f00\u53d1\u4e2d\u6700\u5e38\u7528\u3001\u6700\u57fa\u7840\u3001\u4e5f\u662f\u6700\u53ef\u9760\u7684\u901a\u4fe1\u65b9\u5f0f\u3002\u6211\u6562\u6253\u8d4c\uff0c\u6ca1\u6709\u4e00\u4e2a\u5d4c\u5165\u5f0f\u5de5\u7a0b\u5e08\u6ca1\u7528\u8fc7\u4e32\u53e3\u8c03\u8bd5\u7a0b\u5e8f\u7684\u3002\u8bb0\u5f97\u521a\u5f00\u59cb\u5b66\u4e60\u7684\u65f6\u5019\uff0c\u6211\u628a\u4e32\u53e3\u5f53\u4f5c\u4e07\u80fd\u7684&#8221;\u663e\u5fae\u955c&#8221;\uff0c\u4ec0\u4e48\u53d8\u91cf\u503c\u3001\u7a0b\u5e8f\u72b6\u6001\u3001\u9519\u8bef\u4fe1\u606f\uff0c\u90fd\u60f3\u7528printf\u6253\u5370\u51fa\u6765\u770b\u770b\u3002\u7ed3\u679c\u7ecf\u5e38\u56e0\u4e3a\u4e32\u53e3\u8f93\u51fa\u592a\u591a\u800c\u4e25\u91cd\u5f71\u54cd\u7a0b\u5e8f\u7684\u5b9e\u65f6\u6027\uff0c\u6709\u65f6\u5019\u751a\u81f3\u56e0\u4e3aprintf\u7684\u963b\u585e\u7279\u6027\u5bfc\u81f4\u7cfb\u7edf\u6b7b\u9501\u3002<\/p>\n<p>UART(Universal Asynchronous Receiver\/Transmitter)\u901a\u7528\u5f02\u6b65\u6536\u53d1\u5668\uff0c\u4ece\u540d\u5b57\u5c31\u80fd\u770b\u51fa\u5b83\u7684\u6838\u5fc3\u7279\u5f81\uff1a\u901a\u7528\u6027\u548c\u5f02\u6b65\u6027\u3002\u901a\u7528\u6027\u610f\u5473\u7740\u5b83\u4e0d\u4f9d\u8d56\u4e8e\u7279\u5b9a\u7684\u534f\u8bae\u6216\u5382\u5546\uff0c\u4efb\u4f55\u652f\u6301UART\u7684\u8bbe\u5907\u90fd\u53ef\u4ee5\u76f8\u4e92\u901a\u4fe1\uff1b\u5f02\u6b65\u6027\u610f\u5473\u7740\u53d1\u9001\u7aef\u548c\u63a5\u6536\u7aef\u4e0d\u9700\u8981\u5171\u4eab\u65f6\u949f\u4fe1\u53f7\uff0c\u53ea\u8981\u53cc\u65b9\u7ea6\u5b9a\u597d\u6ce2\u7279\u7387\u3001\u6570\u636e\u4f4d\u3001\u505c\u6b62\u4f4d\u3001\u6821\u9a8c\u4f4d\u7b49\u53c2\u6570\u5c31\u80fd\u6b63\u5e38\u901a\u4fe1\u3002<\/p>\n<p>STM32\u7684UART\u529f\u80fd\u76f8\u5f53\u5f3a\u5927\uff0c\u8fdc\u4e0d\u53ea\u662f\u7b80\u5355\u7684\u6536\u53d1\u6570\u636e\u3002\u5b83\u652f\u6301\u5168\u53cc\u5de5\u901a\u4fe1\uff0c\u53ef\u4ee5\u540c\u65f6\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\uff1b\u652f\u6301\u786c\u4ef6\u6d41\u63a7\u5236\uff0c\u53ef\u4ee5\u901a\u8fc7RTS\/CTS\u4fe1\u53f7\u9632\u6b62\u6570\u636e\u4e22\u5931\uff1b\u652f\u6301\u591a\u79cd\u6570\u636e\u683c\u5f0f\uff0c\u5305\u62ec5-9\u4f4d\u6570\u636e\u4f4d\u30011-2\u4e2a\u505c\u6b62\u4f4d\u3001\u5947\u5076\u6821\u9a8c\u7b49\uff1b\u8fd8\u652f\u6301\u4e2d\u65ad\u548cDMA\u6a21\u5f0f\uff0c\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u6548\u7387\u3002<\/p>\n<p>\u5728\u6211\u7684\u5b9e\u9645\u5de5\u4f5c\u4e2d\uff0c\u4e32\u53e3\u7684\u5e94\u7528\u573a\u666f\u975e\u5e38\u5e7f\u6cdb\u3002\u6700\u5e38\u89c1\u7684\u5f53\u7136\u662f\u7a0b\u5e8f\u8c03\u8bd5\u8f93\u51fa\uff0c\u901a\u8fc7printf\u51fd\u6570\u53ef\u4ee5\u65b9\u4fbf\u5730\u67e5\u770b\u7a0b\u5e8f\u8fd0\u884c\u72b6\u6001\u3001\u53d8\u91cf\u503c\u3001\u9519\u8bef\u4fe1\u606f\u7b49\u3002\u4f46\u662f\u8981\u6ce8\u610f\uff0cprintf\u51fd\u6570\u9ed8\u8ba4\u662f\u963b\u585e\u5f0f\u7684\uff0c\u5982\u679c\u4e32\u53e3\u53d1\u9001\u7f13\u51b2\u533a\u6ee1\u4e86\uff0c\u7a0b\u5e8f\u4f1a\u4e00\u76f4\u7b49\u5f85\u76f4\u5230\u6709\u7a7a\u95f4\u4e3a\u6b62\u3002\u5728\u5bf9\u5b9e\u65f6\u6027\u8981\u6c42\u9ad8\u7684\u5e94\u7528\u4e2d\uff0c\u6700\u597d\u4f7f\u7528\u975e\u963b\u585e\u7684\u4e32\u53e3\u53d1\u9001\u65b9\u5f0f\u3002<\/p>\n<p>\u4e32\u53e3\u8fd8\u5e7f\u6cdb\u7528\u4e8e\u4e0e\u4e0a\u4f4d\u673a\u901a\u4fe1\u3002\u6bd4\u5982\u6211\u505a\u8fc7\u7684\u4e00\u4e2a\u6570\u636e\u91c7\u96c6\u7cfb\u7edf\uff0c\u9700\u8981\u5c06\u4f20\u611f\u5668\u91c7\u96c6\u5230\u7684\u6570\u636e\u5b9e\u65f6\u53d1\u9001\u7ed9PC\u7aef\u7684\u76d1\u63a7\u8f6f\u4ef6\u3002\u8fd9\u79cd\u5e94\u7528\u901a\u5e38\u9700\u8981\u8bbe\u8ba1\u4e00\u5957\u901a\u4fe1\u534f\u8bae\uff0c\u5305\u62ec\u6570\u636e\u5e27\u683c\u5f0f\u3001\u6821\u9a8c\u673a\u5236\u3001\u9519\u8bef\u5904\u7406\u7b49\u3002\u6211\u4e00\u822c\u4f1a\u91c7\u7528&#8221;\u5e27\u5934+\u957f\u5ea6+\u6570\u636e+\u6821\u9a8c&#8221;\u7684\u683c\u5f0f\uff0c\u65e2\u4fdd\u8bc1\u4e86\u6570\u636e\u7684\u5b8c\u6574\u6027\uff0c\u53c8\u4fbf\u4e8e\u89e3\u6790\u5904\u7406\u3002<\/p>\n<p>\u5728\u5de5\u4e1a\u73b0\u573a\uff0c\u4e32\u53e3\u901a\u4fe1\u6700\u5e38\u89c1\u7684\u5e94\u7528\u5c31\u662fModbus RTU\u534f\u8bae\u3002Modbus\u662f\u4e00\u79cd\u975e\u5e38\u6210\u719f\u7684\u5de5\u4e1a\u901a\u4fe1\u534f\u8bae\uff0c\u901a\u8fc7\u4e32\u53e3\u53ef\u4ee5\u5b9e\u73b0\u4e3b\u4ece\u8bbe\u5907\u4e4b\u95f4\u7684\u6570\u636e\u4ea4\u6362\u3002\u6211\u5728\u505a\u5de5\u63a7\u9879\u76ee\u7684\u65f6\u5019\u7ecf\u5e38\u7528\u5230\uff0c\u6bd4\u5982\u901a\u8fc7Modbus\u8bfb\u53d6\u53d8\u9891\u5668\u7684\u8fd0\u884c\u72b6\u6001\u3001\u8bbe\u7f6ePLC\u7684\u8f93\u51fa\u53c2\u6570\u7b49\u3002Modbus\u534f\u8bae\u7684\u5173\u952e\u662fCRC\u6821\u9a8c\u548c\u65f6\u5e8f\u63a7\u5236\uff0c\u5fc5\u987b\u4e25\u683c\u6309\u7167\u534f\u8bae\u89c4\u8303\u5b9e\u73b0\u3002<\/p>\n<p>\u4e32\u53e3\u8fde\u63a5\u5404\u79cd\u6a21\u5757\u4e5f\u662f\u5e38\u89c1\u5e94\u7528\u3002GPS\u6a21\u5757\u8f93\u51faNMEA\u683c\u5f0f\u7684\u4f4d\u7f6e\u4fe1\u606f\uff1b\u84dd\u7259\u6a21\u5757\u53ef\u4ee5\u5b9e\u73b0\u65e0\u7ebf\u4e32\u53e3\u6269\u5c55\uff1bWi-Fi\u6a21\u5757\u901a\u8fc7AT\u6307\u4ee4\u8fdb\u884c\u914d\u7f6e\u548c\u6570\u636e\u4f20\u8f93\uff1b4G\u6a21\u5757\u53ef\u4ee5\u5b9e\u73b0\u8fdc\u7a0b\u6570\u636e\u4f20\u8f93\u7b49\u7b49\u3002\u8fd9\u4e9b\u6a21\u5757\u867d\u7136\u529f\u80fd\u4e0d\u540c\uff0c\u4f46\u63a5\u53e3\u90fd\u662f\u6807\u51c6\u7684\u4e32\u53e3\uff0c\u5927\u5927\u7b80\u5316\u4e86\u7cfb\u7edf\u8bbe\u8ba1\u7684\u590d\u6742\u5ea6\u3002<\/p>\n<p>\u6700\u8ba9\u6211\u5370\u8c61\u6df1\u523b\u7684\u662f\u5728\u505a\u4e00\u4e2a\u591a\u4f20\u611f\u5668\u6570\u636e\u91c7\u96c6\u9879\u76ee\u7684\u65f6\u5019\uff0c\u9700\u8981\u540c\u65f6\u4e0e4\u4e2a\u4e0d\u540c\u7684\u4f20\u611f\u5668\u8fdb\u884c\u4e32\u53e3\u901a\u4fe1\uff0c\u6bcf\u4e2a\u4f20\u611f\u5668\u7684\u6ce2\u7279\u7387\u3001\u6570\u636e\u683c\u5f0f\u3001\u901a\u4fe1\u534f\u8bae\u90fd\u4e0d\u4e00\u6837\u3002\u6e29\u5ea6\u4f20\u611f\u5668\u75289600bps\uff0c\u6e7f\u5ea6\u4f20\u611f\u5668\u752819200bps\uff0c\u538b\u529b\u4f20\u611f\u5668\u752838400bps\uff0c\u8fd8\u6709\u4e00\u4e2a\u6d41\u91cf\u8ba1\u7528\u7684\u662f\u81ea\u5b9a\u4e49\u534f\u8bae\u3002\u90a3\u65f6\u5019\u6211\u624d\u771f\u6b63\u4f53\u4f1a\u5230STM32\u591aUART\u7684\u4fbf\u5229\u6027\uff0cF103\u7cfb\u5217\u67093\u4e2aUART\uff0cF407\u7cfb\u5217\u66f4\u662f\u67096\u4e2a\uff0c\u5b8c\u5168\u80fd\u6ee1\u8db3\u590d\u6742\u5e94\u7528\u7684\u9700\u6c42\u3002<\/p>\n<p>\u4e0d\u8fc7\u4e32\u53e3\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u4e5f\u6709\u5f88\u591a\u5751\u9700\u8981\u6ce8\u610f\u3002\u6ce2\u7279\u7387\u8ba1\u7b97\u662f\u6700\u5bb9\u6613\u51fa\u9519\u7684\u5730\u65b9\uff0cSTM32\u7684\u4e32\u53e3\u6ce2\u7279\u7387\u662f\u901a\u8fc7\u5bc4\u5b58\u5668\u5206\u9891\u5f97\u5230\u7684\uff0c\u5982\u679c\u7cfb\u7edf\u65f6\u949f\u914d\u7f6e\u4e0d\u5bf9\uff0c\u8ba1\u7b97\u51fa\u6765\u7684\u6ce2\u7279\u7387\u5c31\u4f1a\u6709\u504f\u5dee\u3002\u6211\u9047\u5230\u8fc7\u56e0\u4e3a\u65f6\u949f\u914d\u7f6e\u9519\u8bef\u5bfc\u81f4\u6ce2\u7279\u7387\u504f\u5dee\u8d85\u8fc75%\uff0c\u7ed3\u679c\u901a\u4fe1\u5b8c\u5168\u4e0d\u6b63\u5e38\u7684\u60c5\u51b5\u3002<\/p>\n<p>\u6570\u636e\u4f4d\u548c\u6821\u9a8c\u4f4d\u7684\u914d\u7f6e\u4e5f\u8981\u7279\u522b\u5c0f\u5fc3\u3002\u6bd4\u5982\u6709\u4e9b\u8bbe\u5907\u9700\u89819\u4f4d\u6570\u636e\u6a21\u5f0f\u6765\u4f20\u8f93\u6821\u9a8c\u4f4d\uff0c\u6709\u4e9b\u8bbe\u5907\u9700\u8981\u5076\u6821\u9a8c\u6216\u5947\u6821\u9a8c\u3002\u914d\u7f6e\u9519\u8bef\u7684\u8bdd\uff0c\u63a5\u6536\u5230\u7684\u6570\u636e\u5c31\u662f\u4e71\u7801\u3002\u8fd8\u6709\u505c\u6b62\u4f4d\u7684\u914d\u7f6e\uff0c\u867d\u7136\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u75281\u4e2a\u505c\u6b62\u4f4d\u5c31\u591f\u4e86\uff0c\u4f46\u6709\u4e9b\u8001\u8bbe\u5907\u6216\u8005\u9ad8\u6ce2\u7279\u7387\u5e94\u7528\u53ef\u80fd\u9700\u89812\u4e2a\u505c\u6b62\u4f4d\u6765\u4fdd\u8bc1\u53ef\u9760\u6027\u3002<\/p>\n<p>\u4e32\u53e3\u7f13\u51b2\u533a\u7684\u7ba1\u7406\u4e5f\u662f\u4e2a\u6280\u672f\u6d3b\u3002STM32\u7684UART\u786c\u4ef6\u53ea\u67091\u4e2a\u5b57\u8282\u7684\u63a5\u6536\u7f13\u51b2\u533a\uff0c\u5982\u679c\u4e0d\u53ca\u65f6\u8bfb\u53d6\u5c31\u4f1a\u9020\u6210\u6570\u636e\u4e22\u5931\u3002\u6240\u4ee5\u901a\u5e38\u9700\u8981\u5728\u8f6f\u4ef6\u4e2d\u5b9e\u73b0\u73af\u5f62\u7f13\u51b2\u533a\uff0c\u7528\u4e2d\u65ad\u65b9\u5f0f\u63a5\u6536\u6570\u636e\u3002\u6211\u4e00\u822c\u4f1a\u8bbe\u8ba1128\u5b57\u8282\u6216256\u5b57\u8282\u7684\u63a5\u6536\u7f13\u51b2\u533a\uff0c\u65e2\u80fd\u4fdd\u8bc1\u6570\u636e\u4e0d\u4e22\u5931\uff0c\u53c8\u4e0d\u4f1a\u5360\u7528\u592a\u591a\u5185\u5b58\u3002<\/p>\n<p><strong>4. \u5b9a\u65f6\u5668(Timer) &#8211; 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Width Modulation)\u8109\u51b2\u5bbd\u5ea6\u8c03\u5236\u662f\u5b9a\u65f6\u5668\u6700\u5e38\u7528\u7684\u529f\u80fd\u4e4b\u4e00\u3002\u901a\u8fc7\u6539\u53d8\u8109\u51b2\u7684\u5360\u7a7a\u6bd4\uff0c\u53ef\u4ee5\u7b49\u6548\u5730\u6539\u53d8\u8f93\u51fa\u7535\u538b\u7684\u5e73\u5747\u503c\uff0c\u8fd9\u5728\u7535\u673a\u63a7\u5236\u3001LED\u8c03\u5149\u3001\u5f00\u5173\u7535\u6e90\u7b49\u5e94\u7528\u4e2d\u975e\u5e38\u6709\u7528\u3002\u6211\u8bb0\u5f97\u7b2c\u4e00\u6b21\u7528PWM\u63a7\u5236LED\u4eae\u5ea6\u7684\u65f6\u5019\uff0c\u770b\u7740LED\u7684\u4eae\u5ea6\u968f\u7740\u5360\u7a7a\u6bd4\u7684\u6539\u53d8\u800c\u5e73\u6ed1\u53d8\u5316\uff0c\u90a3\u79cd\u611f\u89c9\u5c31\u50cf\u662f\u5728\u7528\u4ee3\u7801\u753b\u753b\u4e00\u6837\u795e\u5947\u3002<\/p>\n<p>\u6211\u5728\u505a\u4e00\u4e2a\u65e0\u5237\u7535\u673a\u63a7\u5236\u9879\u76ee\u7684\u65f6\u5019\uff0c\u9700\u8981\u4ea7\u751f\u4e09\u76f8\u4e92\u8865\u7684PWM\u4fe1\u53f7\u6765\u9a71\u52a8\u7535\u673a\u3002\u65e0\u5237\u7535\u673a\u7684\u63a7\u5236\u539f\u7406\u662f\u901a\u8fc7\u6539\u53d8\u4e09\u76f8\u7ed5\u7ec4\u7684\u901a\u7535\u987a\u5e8f\u548c\u65f6\u95f4\u6765\u4ea7\u751f\u65cb\u8f6c\u78c1\u573a\uff0c\u9a71\u52a8\u8f6c\u5b50\u65cb\u8f6c\u3002\u8fd9\u9700\u89816\u8defPWM\u4fe1\u53f7\uff0c\u5176\u4e2d\u6bcf\u4e24\u8def\u4e3a\u4e00\u7ec4\u4e92\u8865\u8f93\u51fa\uff0c\u8fd8\u8981\u4fdd\u8bc1\u4e0a\u4e0b\u6865\u81c2\u4e0d\u80fd\u540c\u65f6\u5bfc\u901a\u3002STM32\u7684\u9ad8\u7ea7\u5b9a\u65f6\u5668TIM1\u6b63\u597d\u63d0\u4f9b\u4e86\u8fd9\u6837\u7684\u529f\u80fd\uff0c\u4e0d\u4ec5\u80fd\u4ea7\u751f\u4e92\u8865\u7684PWM\u4fe1\u53f7\uff0c\u8fd8\u80fd\u81ea\u52a8\u63d2\u5165\u6b7b\u533a\u65f6\u95f4\u9632\u6b62\u6865\u81c2\u76f4\u901a\u3002<\/p>\n<p>\u8f93\u5165\u6355\u83b7\u529f\u80fd\u53ef\u4ee5\u7cbe\u786e\u6d4b\u91cf\u5916\u90e8\u4fe1\u53f7\u7684\u5468\u671f\u3001\u9891\u7387\u3001\u8109\u51b2\u5bbd\u5ea6\u7b49\u53c2\u6570\u3002\u6bd4\u5982\u5728\u6d4b\u91cf\u7f16\u7801\u5668\u8109\u51b2\u3001\u8d85\u58f0\u6ce2\u6d4b\u8ddd\u3001\u9891\u7387\u8ba1\u7b49\u5e94\u7528\u4e2d\u90fd\u4f1a\u7528\u5230\u3002\u6211\u5728\u505a\u4e00\u4e2a\u8d85\u58f0\u6ce2\u6d4b\u8ddd\u6a21\u5757\u7684\u65f6\u5019\uff0c\u9700\u8981\u6d4b\u91cf\u4ece\u53d1\u5c04\u8d85\u58f0\u6ce2\u5230\u63a5\u6536\u56de\u6ce2\u7684\u65f6\u95f4\u5dee\uff0c\u7136\u540e\u6839\u636e\u58f0\u901f\u8ba1\u7b97\u8ddd\u79bb\u3002\u8fd9\u4e2a\u65f6\u95f4\u5dee\u901a\u5e38\u53ea\u6709\u51e0\u6beb\u79d2\uff0c\u8981\u6c42\u6d4b\u91cf\u7cbe\u5ea6\u8fbe\u5230\u5fae\u79d2\u7ea7\u522b\u3002\u7528\u5b9a\u65f6\u5668\u7684\u8f93\u5165\u6355\u83b7\u529f\u80fd\uff0c\u53ef\u4ee5\u5728\u4e0a\u5347\u6cbf\u548c\u4e0b\u964d\u6cbf\u5206\u522b\u89e6\u53d1\u6355\u83b7\uff0c\u81ea\u52a8\u8bb0\u5f55\u65f6\u95f4\u6233\uff0c\u6d4b\u91cf\u7cbe\u5ea6\u975e\u5e38\u9ad8\u3002<\/p>\n<p>\u7f16\u7801\u5668\u63a5\u53e3\u662f\u5b9a\u65f6\u5668\u7684\u4e00\u4e2a\u7279\u6b8a\u529f\u80fd\uff0c\u4e13\u95e8\u7528\u4e8e\u5904\u7406\u65cb\u8f6c\u7f16\u7801\u5668\u7684\u4fe1\u53f7\u3002\u65cb\u8f6c\u7f16\u7801\u5668\u8f93\u51fa\u4e24\u8def\u76f8\u4f4d\u5dee90\u5ea6\u7684\u65b9\u6ce2\u4fe1\u53f7\uff0c\u901a\u8fc7\u68c0\u6d4b\u4e24\u8def\u4fe1\u53f7\u7684\u76f8\u4f4d\u5173\u7cfb\u53ef\u4ee5\u5224\u65ad\u65cb\u8f6c\u65b9\u5411\uff0c\u901a\u8fc7\u8ba1\u7b97\u8109\u51b2\u6570\u53ef\u4ee5\u6d4b\u91cf\u65cb\u8f6c\u89d2\u5ea6\u3002STM32\u7684\u5b9a\u65f6\u5668\u53ef\u4ee5\u81ea\u52a8\u5904\u7406\u7f16\u7801\u5668\u4fe1\u53f7\uff0c\u4e0d\u9700\u8981\u8f6f\u4ef6\u5e72\u9884\uff0c\u5927\u5927\u7b80\u5316\u4e86\u7f16\u7a0b\u5de5\u4f5c\u3002\u6211\u5728\u505a\u7535\u673a\u4f4d\u7f6e\u63a7\u5236\u7684\u65f6\u5019\u7ecf\u5e38\u7528\u5230\u8fd9\u4e2a\u529f\u80fd\u3002<\/p>\n<p>\u5b9a\u65f6\u5668\u8fd8\u53ef\u4ee5\u5de5\u4f5c\u5728\u5355\u8109\u51b2\u6a21\u5f0f\uff0c\u5f53\u89e6\u53d1\u4e8b\u4ef6\u53d1\u751f\u65f6\u81ea\u52a8\u8f93\u51fa\u4e00\u4e2a\u8bbe\u5b9a\u5bbd\u5ea6\u7684\u8109\u51b2\u3002\u8fd9\u5728\u9700\u8981\u4ea7\u751f\u7cbe\u786e\u5ef6\u65f6\u8109\u51b2\u7684\u5e94\u7528\u4e2d\u5f88\u6709\u7528\u3002\u6bd4\u5982\u63a7\u5236\u6b65\u8fdb\u7535\u673a\u3001\u89e6\u53d1ADC\u91c7\u6837\u3001\u4ea7\u751f\u590d\u4f4d\u4fe1\u53f7\u7b49\u3002<\/p>\n<p>\u5728\u4f7f\u7528\u5b9a\u65f6\u5668\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u603b\u7ed3\u4e86\u4e00\u4e9b\u91cd\u8981\u7684\u7ecf\u9a8c\u3002\u9996\u5148\u662f\u65f6\u949f\u914d\u7f6e\u8981\u51c6\u786e\uff0c\u5b9a\u65f6\u5668\u7684\u7cbe\u5ea6\u76f4\u63a5\u4f9d\u8d56\u4e8e\u8f93\u5165\u65f6\u949f\u7684\u7cbe\u5ea6\u3002\u5176\u6b21\u662f\u8981\u7406\u89e3\u5411\u4e0a\u8ba1\u6570\u3001\u5411\u4e0b\u8ba1\u6570\u3001\u4e2d\u592e\u5bf9\u9f50\u8ba1\u6570\u7b49\u4e0d\u540c\u8ba1\u6570\u6a21\u5f0f\u7684\u533a\u522b\uff0c\u9009\u62e9\u5408\u9002\u7684\u6a21\u5f0f\u53ef\u4ee5\u5f97\u5230\u66f4\u597d\u7684\u6027\u80fd\u3002\u6700\u540e\u662f\u8981\u5408\u7406\u8bbe\u7f6e\u4e2d\u65ad\u4f18\u5148\u7ea7\uff0c\u907f\u514d\u9ad8\u9891\u7684\u5b9a\u65f6\u5668\u4e2d\u65ad\u5f71\u54cd\u7cfb\u7edf\u7684\u5b9e\u65f6\u6027\u3002<\/p>\n<p><strong>5. \u4e2d\u65ad\u7cfb\u7edf &#8211; \u4e8b\u4ef6\u9a71\u52a8\u7f16\u7a0b\u7684\u7075\u9b42<\/strong><\/p>\n<p>\u4e2d\u65ad\u7cfb\u7edf\u662f\u73b0\u4ee3\u5fae\u63a7\u5236\u5668\u6700\u91cd\u8981\u7684\u7279\u6027\u4e4b\u4e00\uff0c\u4e5f\u662f\u5b9e\u73b0\u4e8b\u4ef6\u9a71\u52a8\u7f16\u7a0b\u7684\u6838\u5fc3\u673a\u5236\u3002\u8bf4\u5b9e\u8bdd\uff0c\u521a\u5f00\u59cb\u5b66\u4e60\u4e2d\u65ad\u7684\u65f6\u5019\uff0c\u6211\u7ecf\u5e38\u88ab\u5b83\u641e\u5f97\u6655\u5934\u8f6c\u5411\u3002\u4ec0\u4e48\u4e2d\u65ad\u5411\u91cf\u8868\u3001\u4e2d\u65ad\u4f18\u5148\u7ea7\u3001\u4e2d\u65ad\u5d4c\u5957\u3001\u4e2d\u65ad\u4e0a\u4e0b\u6587\u5207\u6362\uff0c\u8fd9\u4e9b\u6982\u5ff5\u7406\u89e3\u8d77\u6765\u8fd8\u633a\u62bd\u8c61\u7684\u3002\u7279\u522b\u662f\u770b\u5230\u4e2d\u65ad\u5411\u91cf\u8868\u91cc\u9762\u5bc6\u5bc6\u9ebb\u9ebb\u51e0\u5341\u4e2a\u4e2d\u65ad\u6e90\uff0c\u5934\u90fd\u5927\u4e86\u3002\u4f46\u662f\u5f53\u6211\u771f\u6b63\u7406\u89e3\u4e86\u4e2d\u65ad\u7684\u5de5\u4f5c\u539f\u7406\u548c\u5e94\u7528\u573a\u666f\u540e\uff0c\u7a81\u7136\u89c9\u5f97\u5d4c\u5165\u5f0f\u7f16\u7a0b\u53d8\u5f97\u4f18\u96c5\u4e86\u5f88\u591a\u3002<\/p>\n<p>\u6ca1\u6709\u4e2d\u65ad\u7684\u7a0b\u5e8f\u5c31\u50cf\u4e00\u4e2a\u4e0d\u77e5\u75b2\u5026\u7684\u4fdd\u5b89\uff0c\u9700\u8981\u4e0d\u505c\u5730\u5de1\u903b\u68c0\u67e5\u5404\u79cd\u72b6\u6001\uff1a\u6309\u952e\u6309\u4e0b\u4e86\u5417\uff1f\u4e32\u53e3\u6709\u6570\u636e\u6765\u4e86\u5417\uff1f\u5b9a\u65f6\u5668\u5230\u65f6\u95f4\u4e86\u5417\uff1fADC\u91c7\u6837\u5b8c\u6210\u4e86\u5417\uff1f\u8fd9\u79cd\u8f6e\u8be2\u65b9\u5f0f\u4e0d\u4ec5\u6548\u7387\u4f4e\u4e0b\uff0c\u800c\u4e14\u5bb9\u6613\u9519\u8fc7\u91cd\u8981\u4e8b\u4ef6\u3002\u800c\u6709\u4e86\u4e2d\u65ad\u7cfb\u7edf\uff0c\u7a0b\u5e8f\u5c31\u50cf\u4e00\u4e2a\u806a\u660e\u7684\u7ba1\u5bb6\uff0c\u5e73\u65f6\u53ef\u4ee5\u5b89\u9759\u5730\u505a\u4e3b\u8981\u5de5\u4f5c\uff0c\u5f53\u6709\u7d27\u6025\u4e8b\u4ef6\u53d1\u751f\u65f6\u4f1a\u7acb\u5373\u5f97\u5230\u901a\u77e5\u5e76\u53ca\u65f6\u5904\u7406\u3002<\/p>\n<p>STM32\u7684\u4e2d\u65ad\u7cfb\u7edf\u57fa\u4e8eARM Cortex-M\u5185\u6838\u7684NVIC(Nested Vectored Interrupt 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table>\n<p><em>\u5982\u679c\u8fd9\u7bc7\u6587\u7ae0\u5bf9\u4f60\u6709\u5e2e\u52a9\uff0c\u8bf7\u70b9\u4e2a\u8d5e\u652f\u6301\u4e00\u4e0b\u3002\u5982\u679c\u6709\u4ec0\u4e48\u95ee\u9898\uff0c\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u8ba8\u8bba\uff0c\u6211\u4f1a\u5c3d\u91cf\u56de\u590d\u5927\u5bb6\u7684\u95ee\u9898\u3002<\/em><\/p>\n<table>\n<thead>\n<tr>\n<th><em>\u6700\u540e\uff0c\u795d\u613f\u6240\u6709\u5d4c\u5165\u5f0f\u5de5\u7a0b\u5e08\u90fd\u80fd\u5b9e\u73b0\u81ea\u5df1\u7684\u6280\u672f\u68a6\u60f3\uff01<\/em><\/th>\n<\/tr>\n<\/thead>\n<\/tbody>\n<\/table>\n<p><strong>\u53e6\u5916\uff0c\u60f3\u8fdb\u5927\u5382\u7684\u540c\u5b66\uff0c\u4e00\u5b9a\u8981\u597d\u597d\u5b66\u7b97\u6cd5\uff0c\u8fd9\u662f\u9762\u8bd5\u5fc5\u5907\u7684\u3002\u8fd9\u91cc\u51c6\u5907\u4e86\u4e00\u4efd BAT \u5927\u4f6c\u603b\u7ed3\u7684 LeetCode \u5237\u9898\u5b9d\u5178\uff0c\u5f88\u591a\u4eba\u9760\u5b83\u4eec\u8fdb\u4e86\u5927\u5382\u3002<\/strong><\/p>\n<p><img decoding=\"async\" width=\"286\" height=\"83\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdaCCY\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><a href=\"https:\/\/link.segmentfault.com\/?enc=ntKvD0K8NkkDVfdi4UE83w%3D%3D.z7xsB1kjrX02PQAyPFefVeAq0rOqNhLmZ9yXYenOoQ%2Bg%2BnheQ31ut%2BD633uqM9oA\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">\u5237\u9898 | LeetCode\u7b97\u6cd5\u5237\u9898\u795e\u5668\uff0c\u770b\u5b8c BAT \u968f\u4f60\u6311\uff01<\/a><\/p>\n<h3>\u6709\u6536\u83b7\uff1f\u5e0c\u671b\u8001\u94c1\u4eec\u6765\u4e2a\u4e09\u8fde\u51fb\uff0c\u7ed9\u66f4\u591a\u7684\u4eba\u770b\u5230\u8fd9\u7bc7\u6587\u7ae0<\/h3>\n<p><strong>\u63a8\u8350\u9605\u8bfb\uff1a<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=xEhZ38mpCOhFqCwudskFLw%3D%3D.LrI2cjh%2B6BwPNZlO9N%2B%2BtE3H249B4eTeiZXHSSe6IjiW5yIIGIONCLGKdiAozJ6H\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">\u3010\u826f\u8bb8\u5b66\u5802\u30112025\u5e74\u5d4c\u5165\u5f0f\u5982\u4f55\u9ad8\u85aa\u5165\u884c\uff1f<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=HMnx1t4krBMCmHdsN1MG%2BQ%3D%3D.Sx%2FZGwn7BDzfsBF9baaJ4bUO19V3YkugL2kuIT%2BfFgkqLAwHbw%2BVN96PLxjrBzY4\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">\u7a0b\u5e8f\u5458\u5fc5\u5907\u7f16\u7a0b\u8d44\u6599\u5927\u5168<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=M%2BFcatMstPGFRRP27xYlVg%3D%3D.pBbE6rxV3xAdkbwpYw6Xc8xX4qA%2BBZzMGE5rYvVrw66ZeERPNw6DJGBlwS7u3nWu\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">\u7a0b\u5e8f\u5458\u5fc5\u5907\u8f6f\u4ef6\u8d44\u6e90<\/a><\/li>\n<\/ul>\n<p>\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u535a\u5ba2\uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=BSAb0q0B8PUp1bgAuma%2BlQ%3D%3D.zW2WsHnRYhZP1JYtIa8C4Knh%2BuGgNJC3qG3JT80voTE%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">\u826f\u8bb8\u5d4c\u5165\u5f0f\u6559\u7a0b\u7f51<\/a>\uff0c\u6ee1\u6ee1\u90fd\u662f\u5e72\u8d27\uff01<\/p>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000046820329\">https:\/\/segmentfault.com\/a\/1190000046820329<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f5c\u4e3a\u4e00\u4e2a\u5728\u5d4c\u5165\u5f0f\u9886\u57df\u6478\u722c\u6eda\u6253\u4e8611\u5e74\u7684\u8001\u5175\uff0c\u4eca\u5929\u60f3\u548c\u5927\u5bb6\u6df1\u5ea6\u804a\u804aSTM32\u8fd9\u4e2a\u8ba9\u65e0\u6570\u5de5\u7a0b\u5e08\u53c8\u7231\u53c8\u6068\u7684&#038;#822 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10020866","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10020866","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10020866"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10020866\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10020866"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10020866"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10020866"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}