{"id":105,"date":"2024-06-19T14:15:59","date_gmt":"2024-06-19T06:15:59","guid":{"rendered":"https:\/\/aoofoo.com\/?p=105"},"modified":"2024-07-29T17:02:09","modified_gmt":"2024-07-29T09:02:09","slug":"stm32-1","status":"publish","type":"post","link":"https:\/\/aoofoo.com\/index.php\/2024\/06\/19\/stm32-1\/","title":{"rendered":"2.1 STM32\u901a\u8bc6"},"content":{"rendered":"<h2>\u5bfc\u8bed<\/h2>\n<p>\u5b66\u4e60STM32\uff0c\u5fc5\u987b\u4f7f\u7528\u5b9e\u7269\u8fdb\u884c\u8c03\u8bd5\uff0c\u53ef\u4ee5\u662f\u5f00\u53d1\u677f\uff0c\u4e5f\u53ef\u4ee5\u662f\u5957\u4ef6\uff0c\u8981\u628a\u81ea\u5df1\u7684\u7a0b\u5e8f\u5728\u786c\u4ef6\u4e0a\u5b9e\u73b0\u51fa\u6765\uff0c\u8fd9\u6837\u624d\u80fd\u8fdb\u884c\u4e00\u4e2a\u6709\u6548\u7684\u5b66\u4e60\u3002<\/p>\n<p>\u5165\u95e8\u63a8\u8350\u4f7f\u7528\u5957\u4ef6\uff08\u975e\u5fc5\u987b\uff0c\u4e5f\u4e0d\u662f\u5e7f\u544a\uff09\uff1a<div class=\"sc-collapse\"><div class=\"sc-collapse__header\"><svg class=\"sc-collapse__arrow\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><polyline points=\"6 9 12 15 18 9\"\/><\/svg>\u94fe\u63a5\u5df2\u6298\u53e0<\/div><div class=\"sc-collapse__body\"><div class=\"sc-collapse__content\"><a href=\"https:\/\/item.taobao.com\/item.htm?id=655451342180&amp;ali_trackid=2:mm_2038330052_2851900351_114774900234:1718784903_046_933229853&amp;union_lens=lensId:TAPI@1701262246@212b6b2a_0f87_18c1b21c224_9a88@01;recoveryid:046_1172653680@1718784903993&amp;ak=27696150&amp;bxsign=tbknfI6SUfwm_hGx0DuXDNye2AovjxXfPmEIsxXQ5iNDRcG6dFtON0Hy8X8xSKdAbs_b9mT947yv0fOfwweQkHVVP1WksoXNssuL5_VWQv8G0C0i83q1iDwni40BCwrstCHkK51qofeh3HBa20DAFVC8G1cr2cjmf1yyZbBcR1uZMSXSB2MV4MnU3yoPAT5pIQT\">\u70b9\u51fb\u6dd8\u5b9d\u8d2d\u4e70<\/a><\/div><\/div><\/div><\/p>\n<div class=\"sc-alert sc-alert--info\"><span class=\"sc-alert__icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><circle cx=\"12\" cy=\"12\" r=\"10\"\/><line x1=\"12\" y1=\"16\" x2=\"12\" y2=\"12\"\/><line x1=\"12\" y1=\"8\" x2=\"12.01\" y2=\"8\"\/><\/svg><\/span><div class=\"sc-alert__content\">\u76ee\u524d\u770b\u4e0d\u61c2\u4e13\u4e1a\u540d\u8bcd\u662f\u6b63\u5e38\u7684\uff0c\u540e\u7eed\u4f1a\u4e00\u4e00\u4ecb\u7ecd\u3002<\/div><\/div>\n<p>STM32\u662fST\u516c\u53f8\u57fa\u4e8eARM Cortex-M\u5185\u6838\u5f00\u53d1\u768432\u4f4d\u5fae\u63a7\u5236\u5668\u3002\u8fd9\u4e2a\u5185\u6838\u65f6ARM\u516c\u53f8\u8bbe\u8ba1\u7684\uff0c\u5b83\u5728STM32\u4e2d\u5360\u636e\u6781\u4e3a\u91cd\u8981\u7684\u5730\u4f4d\uff08\u7a0b\u5e8f\u6307\u4ee4\u7684\u6267\u884c\uff0c\u52a0\u51cf\u4e58\u9664\u7684\u8fd0\u7b97\u90fd\u5728\u5185\u6838\u4e2d\u5b8c\u6210\uff09\uff0c\u5b83\u76f8\u5f53\u4e8e\u6574\u4e2a\u82af\u7247\u7684CPU\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-129\" src=\"https:\/\/aoofoo.com\/wp-content\/uploads\/2024\/06\/2f4d2945d5ce9a5a1433fbf10af3e4f.png\" alt=\"\" width=\"355\" height=\"238\" \/><\/p>\n<p>\u5728\u672c\u7ae0\u8282\u7684\u524d\u534a\u90e8\u5206\u6211\u4eec\u662f\u4f7f\u7528\u7684STM32F103C8T6\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-130\" src=\"https:\/\/aoofoo.com\/wp-content\/uploads\/2024\/06\/\u5fae\u4fe1\u622a\u56fe_20240619163353.jpg\" alt=\"\" width=\"578\" height=\"215\" \/><\/p>\n<p>\u8fd9\u91cc\u7684RAM\u5c31\u662f\u8fd0\u884c\u5185\u5b58\uff0c\u5b9e\u9645\u5b58\u50a8\u4ecb\u8d28\u65f6SRAM\u3002<\/p>\n<p>\u8fd9\u91cc\u7684ROM\u5c31\u662f\u7a0b\u5e8f\u5b58\u50a8\u5668\uff0c\u5b9e\u9645\u5b58\u50a8\u4ecb\u8d28\u65f6Flash\u95ea\u5b58\u3002<\/p>\n<p>\u6ce8\u610f\uff1a\u5982\u679c\u662f5V\u7535\u538b\u662f\u4e0d\u80fd\u591f\u76f4\u63a5\u7ed9STM32\u8fdb\u884c\u4f9b\u7535\uff0c \u9700\u8981\u52a0\u4e00\u4e2a\u7a33\u538b\u82af\u7247\u628a\u7535\u538b\u964d\u52303.3V\u518d\u7ed9\u82af\u7247\u4f9b\u7535\u3002<\/p>\n<h2>\u5916\u8bbe\/\u7247\u4e0a\u8d44\u6e90<\/h2>\n<p>STM32\u7684\u5916\u8bbe\/\u7247\u4e0a\u8d44\u6e90\uff08Peripheral\uff09:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-134\" src=\"https:\/\/aoofoo.com\/wp-content\/uploads\/2024\/06\/\u5fae\u4fe1\u622a\u56fe_20240619164156.jpg\" alt=\"\" width=\"936\" height=\"505\" \/><\/p>\n<p>\u901a\u8fc7\u7a0b\u5e8f\u914d\u7f6e\u5916\u8bbe\uff0c\u6765\u5b9e\u73b0\u6211\u4eec\u7684\u529f\u80fd\u3002<\/p>\n<div class=\"sc-star-plane sc-star-plane--1\"><div class=\"sc-star-plane__content\">\u8fd9\u4e9b\u662fSTM32F1\u6574\u4e2a\u7cfb\u5217\u7684\u6240\u6709\u5916\u8bbe\uff0c\u5e76\u4e0d\u662f\u6240\u6709\u578b\u53f7\u90fd\u62e5\u6709\u5168\u90e8\u7684\u5916\u8bbe\uff01<\/div><\/div>\n<p>NVIC\uff0c\u5d4c\u5957\u5411\u91cf\u4e2d\u65ad\u63a7\u5236\u5668\uff0c\u8fd9\u4e2a\u662f\u5185\u6838\u91cc\u9762\u7528\u4e8e\u7ba1\u7406\u4e2d\u65ad\u7684\u8bbe\u5907\uff0c\u6bd4\u5982\u914d\u7f6e\u4e2d\u65ad\u4f18\u5148\u7ea7\u8fd9\u4e9b\u4e1c\u897f\u3002<\/p>\n<p>SysTick,\u7cfb\u7edf\u6ef4\u7b54\u5b9a\u65f6\u5668\uff0c\u8fd9\u4e2a\u662f\u5185\u6838\u91cc\u9762\u7684\u4e00\u4e2a\u5b9a\u65f6\u5668\uff0c\u4e3b\u8981\u7528\u6765\u7ed9\u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u5b9a\u65f6\u670d\u52a1\u7684\uff0cSTM32\u662f\u53ef\u4ee5\u52a0\u5165\u64cd\u4f5c\u7cfb\u7edf\u7684\uff0c\u6bd4\u5982FreeRTOS\u3001UCOS\u7b49\u3002\u5982\u679c\u7528\u5230\u8fd9\u4e9b\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5c31\u9700\u8981SysTick\u63d0\u4f9b\u5b9a\u65f6\u6765\u8fdb\u884c\u4efb\u52a1\u5207\u6362\u7684\u529f\u80fd\u3002<\/p>\n<p>RCC\uff0c\u590d\u4f4d\u548c\u65f6\u949f\u63a7\u5236\uff0c\u8fd9\u4e2a\u53ef\u4ee5\u5bf9\u7cfb\u7edf\u7684\u65f6\u949f\u8fdb\u884c\u914d\u7f6e\uff0c\u8fd8\u6709\u5c31\u662f\u4f7f\u80fd\u5404\u6a21\u5757\u7684\u65f6\u949f\u3002\u5728STM32\u4e2d\uff0c\u5176\u5b83\u7684\u8fd9\u4e9b\u5916\u8bbe\u5728\u4e0a\u7535\u7684\u60c5\u51b5\u4e0b\u9ed8\u8ba4\u662f\u6ca1\u6709\u65f6\u949f\u7684\uff0c\u4e0d\u7ed9\u65f6\u949f\u7684\u60c5\u51b5\u4e0b\uff0c\u64cd\u4f5c\u5916\u8bbe\u662f\u65e0\u6548\u7684\uff0c\u5916\u8bbe\u4e5f\u4e0d\u4f1a\u5de5\u4f5c\uff0c\u8fd9\u6837\u7684\u76ee\u7684\u662f\u964d\u4f4e\u529f\u8017\uff0c\u6240\u4ee5\uff0c\u5728\u64cd\u4f5c\u5916\u8bbe\u4e4b\u524d\uff0c\u5fc5\u987b\u8981\u5148\u4f7f\u80fd\u5b83\u7684\u65f6\u949f\uff0c\u8fd9\u5c31\u9700\u8981\u6211\u4eec\u7528RCC\u6765\u5b8c\u6210\u65f6\u949f\u7684\u4f7f\u80fd\u3002<\/p>\n<p>GPIO\uff0c\u901a\u7528\u7684IO\u53e3\uff0c\u6211\u4eec\u53ef\u4ee5\u7528GPIO\u6765\u70b9\u706f\uff0c\u8bfb\u53d6\u6309\u952e\u7b49\u3002<\/p>\n<p>AFIO\uff0c\u590d\u7528IO\u53e3\uff0c\u5b83\u53ef\u4ee5\u5b8c\u6210\u590d\u7528\u529f\u80fd\u7aef\u53e3\u7684\u91cd\u5b9a\u4e49\uff0c\u8fd8\u6709\u4e2d\u65ad\u7aef\u53e3\u7684\u914d\u7f6e\u3002<\/p>\n<p>EXTI\uff0c\u5916\u90e8\u4e2d\u65ad\uff0c\u914d\u7f6e\u597d\u5916\u90e8\u4e2d\u65ad\u540e\uff0c\u5f53\u5f15\u811a\u6709\u7535\u5e73\u53d8\u5316\u65f6\uff0c\u5c31\u53ef\u4ee5\u89e6\u53d1\u4e2d\u65ad\uff0c\u8ba9CPU\u6765\u5904\u7406\u4efb\u52a1\u3002<\/p>\n<p>TIM\uff0c\u5b9a\u65f6\u5668\uff0c\u8fd9\u4e5f\u662f\u6574\u4e2aSTM32\u6700\u5e38\u7528\u3001\u529f\u80fd\u6700\u591a\u7684\u5916\u8bbe\u3002TIM\u5206\u4e3a\u9ad8\u7ea7\u5b9a\u65f6\u5668\u3001\u901a\u7528\u5b9a\u65f6\u5668\u3001\u57fa\u672c\u5b9a\u65f6\u5668\u4e09\u79cd\u7c7b\u578b\uff0c\u5176\u4e2d\u9ad8\u7ea7\u5b9a\u65f6\u5668\u6700\u4e3a\u590d\u6742\uff0c\u5e38\u7528\u7684\u662f\u901a\u7528\u5b9a\u65f6\u5668\uff0c\u8fd9\u4e2a\u5b9a\u65f6\u5668\u4e0d\u4ec5\u53ef\u4ee5\u5b8c\u6210\u5b9a\u65f6\u4e2d\u65ad\u7684\u4efb\u52a1\uff0c\u8fd8\u53ef\u4ee5\u5b8c\u6210\u6d4b\u9891\u7387\u3001\u751f\u6210PWM\u6ce2\u5f62\u3001\u914d\u7f6e\u6210\u4e13\u7528\u7684\u7f16\u7801\u5668\u63a5\u53e3\u7b49\u529f\u80fd\u3002\u4f8b\u5982PWM\u6ce2\u5f62\u5c31\u662f\u7535\u673a\u9a71\u52a8\u3001\u8235\u673a\u9a71\u52a8\u6700\u57fa\u672c\u7684\u8981\u6c42\u4e86\u3002<\/p>\n<p>ADC\uff0c\u6a21\u6570\u8f6c\u6362\u5668\uff0c\u8fd9\u4e2aSTM32\u5185\u7f6e\u4e8612\u4f4d\u7684AD\u8f6c\u6362\u5668\uff0c\u53ef\u4ee5\u76f4\u63a5\u8bfb\u53d6IO\u53e3\u7684\u6a21\u62df\u7535\u538b\u503c\uff0c\u65e0\u9700\u5916\u90e8\u8fde\u63a5AD\u82af\u7247\uff0c\u4f7f\u7528\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n<p>DMA\uff0c\u76f4\u63a5\u5185\u5b58\u8bbf\u95ee\uff0c\u8fd9\u4e2a\u53ef\u4ee5\u5e2e\u52a9CPU\u5b8c\u6210\u642c\u8fd0\u5927\u91cf\u6570\u636e\u8fd9\u6837\u7684\u7e41\u6742\u4efb\u52a1\u3002<\/p>\n<p>USART,\u540c\u6b65\/\u5f02\u6b65\u4e32\u53e3\u901a\u4fe1\uff0c\u6211\u4eec\u5e73\u5e38\u7528\u7684UART\u662f\u5f02\u6b65\u4e32\u53e3\u7684\u610f\u601d\uff0c\u8fd9\u91cc\u7684USART\u662f\u5373\u652f\u6301\u5f02\u6b65\u4e32\u53e3\uff0c\u4e5f\u652f\u6301\u540c\u6b65\u4e32\u53e3\uff0c\u5f53\u7136\u6211\u4eec\u5b9e\u9645\u4f7f\u7528\u5f02\u6b65\u4e32\u53e3\u662f\u6bd4\u8f83\u591a\u7684\u3002<\/p>\n<p>I2C\u3001SPI\u662f\u975e\u5e38\u5e38\u7528\u7684\u4e24\u79cd\u901a\u8baf\u534f\u8bae\uff0cSTM32\u4e5f\u5185\u7f6e\u4e86\u5b83\u4eec\u7684\u63a7\u5236\u5668\uff0c\u53ef\u4ee5\u7528\u6765\u786c\u4ef6\u8f93\u51fa\u65f6\u5e8f\u6ce2\u5f62\uff0c\u4f7f\u7528\u8d77\u6765\u66f4\u9ad8\u6548\uff0c\u5f53\u7136\u7528\u901a\u7528IO\u53e3\u6765\u6a21\u62df\u65f6\u5e8f\u6ce2\u5f62\u4e5f\u662f\u6ca1\u6709\u95ee\u9898\u7684\u3002<\/p>\n<p>CAN\u3001USB\uff0c\u901a\u8baf\u534f\u8bae\uff0cCAN\u4e00\u822c\u7528\u4e8e\u6c7d\u8f66\u9886\u57df\uff0cUSB\u751f\u6d3b\u4e2d\u5df2\u7ecf\u8f83\u4e3a\u5e38\u89c1\u3002\u5229\u7528STM32\u7684USB\u5916\u8bbe\uff0c\u53ef\u4ee5\u505a\u4e00\u4e2a\u6a21\u62df\u9f20\u6807\u3001\u6a21\u62dfU\u76d8\u7b49\u8bbe\u5907\u3002<\/p>\n<p>RTC,\u5b9e\u65f6\u65f6\u949f\uff0c\u5728STM32\u5185\u90e8\u5b8c\u6210\u5e74\u6708\u65e5\u3001\u65f6\u5206\u79d2\u7684\u8ba1\u65f6\u529f\u80fd\uff0c\u800c\u4e14\u53ef\u4ee5\u63a5\u5916\u90e8\u5907\u7528\u7535\u6c60\uff0c\u5373\u4f7f\u6389\u7535\u4e5f\u80fd\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n<p>CRC\uff0cCRC\u6821\u9a8c\uff0c\u662f\u4e00\u79cd\u6570\u636e\u7684\u6821\u9a8c\u65b9\u5f0f\uff0c\u7528\u4e8e\u5224\u65ad\u6570\u636e\u7684\u6b63\u786e\u6027\uff0c\u6709\u4e86\u8fd9\u4e2a\u5916\u8bbe\u7684\u652f\u6301\uff0c\u8fdb\u884cCRC\u6821\u9a8c\u5c31\u4f1a\u66f4\u52a0\u65b9\u4fbf\u4e00\u4e9b\u3002<\/p>\n<p>PWR\uff0c\u7535\u6e90\u63a7\u5236\uff0c\u53ef\u4ee5\u8ba9\u82af\u7247\u8fdb\u5165\u7761\u7720\u6a21\u5f0f\u7b49\u72b6\u6001\uff0c\u6765\u8fbe\u5230\u7701\u7535\u7684\u76ee\u7684\u3002<\/p>\n<p>BKP,\u5907\u4efd\u5bc4\u5b58\u5668\uff0c\u8fd9\u662f\u4e00\u6bb5\u5b58\u50a8\u5668\uff0c\u5f53\u7cfb\u7edf\u6389\u7535\u65f6\uff0c\u4ecd\u53ef\u7531\u5907\u7528\u7535\u6c60\u4fdd\u6301\u6570\u636e\uff0c\u8fd9\u4e2a\u6839\u636e\u9700\u8981\uff0c\u53ef\u4ee5\u5b8c\u6210\u4e00\u4e9b\u7279\u6b8a\u529f\u80fd\u3002<\/p>\n<p>IWDG\u3001WWDG\uff0c\u72ec\u7acb\u770b\u95e8\u72d7\u548c\u4e32\u53e3\u770b\u95e8\u72d7\uff0c\u5f53\u5355\u7247\u673a\u56e0\u4e3a\u7535\u78c1\u5e72\u6270\u6b7b\u673a\u6216\u8005\u7a0b\u5e8f\u8bbe\u8ba1\u4e0d\u5408\u7406\u51fa\u73b0\u6b7b\u5faa\u73af\u65f6\uff0c\u770b\u95e8\u72d7\u53ef\u4ee5\u53ca\u65f6\u590d\u4f4d\u82af\u7247\uff0c\u4fdd\u8bc1\u7cfb\u7edf\u7684\u7a33\u5b9a\u3002<\/p>\n<p>DAC\uff0c\u6570\u6a21\u8f6c\u6362\u5668\uff0c\u5b83\u53ef\u4ee5\u5728IO\u53e3\u76f4\u63a5\u8f93\u51fa\u6a21\u62df\u7535\u538b\uff0c\u662fADC\u6a21\u6570\u8f6c\u6362\u7684\u9006\u8fc7\u7a0b\u3002<\/p>\n<p>SDIO\uff0cSD\u5361\u63a5\u53e3\uff0c\u53ef\u4ee5\u7528\u6765\u8bfb\u53d6SD\u5361\u3002<\/p>\n<p>FSMC\uff0c\u53ef\u53d8\u9759\u6001\u5b58\u50a8\u63a7\u5236\u5668\uff0c\u53ef\u4ee5\u7528\u4e8e\u6269\u5c55\u5185\u5b58\uff0c\u8fd8\u53ef\u4ee5\u914d\u7f6e\u6210\u5176\u4ed6\u603b\u7ebf\u534f\u8bae\uff0c\u7528\u4e8e\u67d0\u4e9b\u786c\u4ef6\u7684\u64cd\u4f5c\u3002<\/p>\n<p>USB OTG\uff0cUSB\u4e3b\u673a\u63a5\u53e3\uff0c\u7528OTG\u529f\u80fd\uff0c\u53ef\u4ee5\u8ba9STM32\u4f5c\u4e3aUSB\u4e3b\u673a\u53bb\u8bfb\u53d6\u5176\u4ed6USB\u8bbe\u5907\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u8fd9\u4e9b\u662fSTM32F1\u7cfb\u5217\u5168\u90e8\u7684\u5916\u8bbe\uff0c\u4f46\u5177\u4f53\u5230\u67d0\u4e2a\u5355\u72ec\u7684\u578b\u53f7\u6709\u54ea\u4e9b\u5916\u8bbe\uff0c\u6bcf\u4e2a\u5916\u8bbe\u6709\u51e0\u4e2a\uff1f\u9700\u8981\u5bf9\u5e94\u7684\u6570\u636e\u624b\u518c\u8fdb\u884c\u67e5\u770b\uff0c\u6bd4\u5982STM32F1C8T6\u7684\u6570\u636e\u624b\u518c\uff1a<a href=\"https:\/\/aoofoo.com\/wp-content\/uploads\/2024\/06\/STM32F103x8B\u6570\u636e\u624b\u518c\uff08\u4e2d\u6587\uff09.pdf\">STM32F103x8B\u6570\u636e\u624b\u518c\uff08\u4e2d\u6587\uff09\u3002<\/a><\/p>\n<h2>\u82af\u7247\u7684\u547d\u540d\u89c4\u5219<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4ee5STM32F103C8T6\u4e3a\u4f8b\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-143\" src=\"https:\/\/aoofoo.com\/wp-content\/uploads\/2024\/06\/\u547d\u540d\u89c4\u5219.png\" alt=\"\" width=\"643\" height=\"760\" \/><\/p>\n<h2>\u82af\u7247\u7684\u7cfb\u7edf\u7ed3\u6784<\/h2>\n<div class=\"sc-alert sc-alert--info\"><span class=\"sc-alert__icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><circle cx=\"12\" cy=\"12\" r=\"10\"\/><line x1=\"12\" y1=\"16\" x2=\"12\" y2=\"12\"\/><line x1=\"12\" y1=\"8\" x2=\"12.01\" y2=\"8\"\/><\/svg><\/span><div class=\"sc-alert__content\">\u73b0\u5728\u8fd9\u4e2a\u9636\u6bb5\u4e0d\u9700\u8981\u6bcf\u4e2a\u90e8\u5206\u90fd\u5f04\u61c2\uff0c\u5927\u81f4\u4e86\u89e3\u4e00\u4e0b\u5373\u53ef\uff01<\/div><\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-144\" src=\"https:\/\/aoofoo.com\/wp-content\/uploads\/2024\/06\/\u7cfb\u7edf\u7ed3\u6784.png\" alt=\"\" width=\"965\" height=\"742\" \/><\/p>\n<h3>\u5185\u6838<\/h3>\n<p>\u5982\u56fe\u6240\u793a\uff0c\u5de6\u4e0a\u89d2Cortex-M3\u5c31\u662f\u5185\u6838\uff0c\u5185\u6838\u5f15\u51fa\u6765\u4e86\u4e09\u6761\u603b\u7ebf\uff0c\u5206\u522b\u662fICode\u6307\u4ee4\u603b\u7ebf\uff0cDCode\u6570\u636e\u603b\u7ebf\uff0cSystem\u7cfb\u7edf\u603b\u7ebf\uff0c\u8fd9\u4e2aICode\u603b\u7ebf\u548cDCode\u603b\u7ebf\u4e3b\u8981\u662f\u7528\u6765\u8fde\u63a5Flash\u95ea\u5b58\u7684\uff0cFlash\u91cc\u9762\u5b58\u50a8\u7684\u5c31\u662f\u6211\u4eec\u7f16\u5199\u7684\u7a0b\u5e8f\uff0cICode\u6307\u4ee4\u603b\u7ebf\u5c31\u662f\u7528\u6765\u52a0\u8f7d\u7a0b\u5e8f\u6307\u4ee4\u7684\uff0cDCode\u6570\u636e\u603b\u7ebf\u662f\u7528\u6765\u52a0\u8f7d\u6570\u636e\u7684\uff0c\u6bd4\u5982\u5e38\u91cf\u548c\u8c03\u8bd5\u6570\u636e\u8fd9\u4e9b\uff0c\u9664\u4e86ICode\u603b\u7ebf\u548cDCode\u603b\u7ebf\uff0c\u5185\u6838\u8fd8\u5f15\u51fa\u4e86System\u7cfb\u7edf\u603b\u7ebf\uff0cSystem\u603b\u7ebf\u5c31\u8fde\u63a5\u5230\u4e86\u8fd9\u4e9b\u5176\u4ed6\u7684\u4e1c\u897f\u4e0a\u9762\uff0c\u6bd4\u5982SRAM\u3001FSMC\uff0cSRAM\u662f\u7528\u4e8e\u5b58\u50a8\u7a0b\u5e8f\u8fd0\u884c\u65f6\u7684\u53d8\u91cf\u6570\u636e\uff0c\u800cFSMC\u73b0\u5728\u4e0d\u4f1a\u7528\u5230\u3002<\/p>\n<h3>AHB\u603b\u7ebf<\/h3>\n<p>\u5de6\u4e0b\u89d2\u662fAHB\u603b\u7ebf\uff0cAHB\u7cfb\u7edf\u603b\u7ebf\u5c31\u662f\u7528\u4e8e\u6302\u8f7d\u4e3b\u8981\u7684\u5916\u8bbe\u7684\uff0cAHB\u7684\u610f\u601d\u662f\u5148\u8fdb\u9ad8\u6027\u80fd\u603b\u7ebf\uff0c\u6302\u8f7d\u7684\u4e00\u822c\u662f\u6700\u57fa\u672c\u7684\u6216\u8005\u6027\u80fd\u6bd4\u8f83\u9ad8\u7684\u5916\u8bbe\uff0c\u6bd4\u5982\u590d\u4f4d\u548c\u65f6\u949f\u63a7\u5236\u8fd9\u4e9b\u6700\u57fa\u672c\u7684\u7535\u8def\u548cSDIO\u3002AHB\u7cfb\u7edf\u603b\u7ebf\u901a\u8fc7\u4e24\u4e2a\u6865\u63a5\uff0c\u63a5\u5230\u4e86APB1\u548cAPB2\u4e24\u4e2a\u5916\u8bbe\u603b\u7ebf\u4e0a\uff0c\u8fd9\u4e2aAPB\u7684\u610f\u601d\u662f\u5148\u8fdb\u5916\u8bbe\u603b\u7ebf\uff0c\u7528\u4e8e\u8fde\u63a5\u4e00\u822c\u7684\u5916\u8bbe\uff0c\u56e0\u4e3aAHB\u548cAPB\u7684\u603b\u7ebf\u534f\u8bae\u3001\u603b\u7ebf\u901f\u5ea6\u3001\u8fd8\u6709\u6570\u636e\u4f20\u9001\u683c\u5f0f\u7684\u5dee\u5f02\uff0c\u6240\u4ee5\u4e2d\u95f4\u9700\u8981\u52a0\u4e24\u4e2a\u6865\u63a5\uff0c\u6765\u5b8c\u6210\u6570\u636e\u7684\u8f6c\u6362\u548c\u7f13\u5b58\u3002<\/p>\n<p>AHB\u7684\u6574\u7406\u6027\u80fd\u6bd4APB\u9ad8\u4e00\u4e9b\uff0c\u5176\u4e2dAPB2\u7684\u6027\u80fd\u53c8\u6bd4APB1\u9ad8\u4e00\u4e9b\u3002APB2\u4e00\u822c\u662f\u548cAHB\u7528\u9891\u7387\u7684\uff0c\u90fd\u662f72MHz\uff0cAPB1\u4e00\u822c\u662f36MHz\uff0c\u6240\u4ee5APB2\u8fde\u63a5\u7684\u90fd\u662f\u4e00\u822c\u5916\u8bbe\u4e2d\u7a0d\u5fae\u91cd\u8981\u7684\u90e8\u5206\u6bd4\u5982GPIO\u7aef\u53e3\u548c\u5916\u8bbe\u7684\u4e00\u53f7\u9009\u624b\uff0c\u6bd4\u5982UASRT1\u3001SPI1\u3001TIM1\u3001TIM8&#8230;&#8230;<\/p>\n<h3>DMA<\/h3>\n<p>DMA\u53ef\u4ee5\u770b\u4f5c\u5185\u6838CPU\u7684\u5c0f\u79d8\u4e66\uff0c\u4e00\u4e9b\u5927\u91cf\u6570\u636e\u642c\u8fd0\u7684\u6d3b\uff0c\u8ba9CPU\u6765\u5e72\u5c31\u592a\u6d6a\u8d39\u65f6\u95f4\u4e86\uff0c\u6bd4\u5982\u6709\u4e00\u4e2a\u5916\u8bbeADC\u6a21\u6570\u8f6c\u6362\uff0c\u8fd9\u4e2a\u6a21\u6570\u8f6c\u6362\u53ef\u4ee5\u914d\u7f6e\u6210\u8fde\u7eed\u6a21\u5f0f\uff0c\u6bd4\u59821ms\u8f6c\u6362\u4e00\u6b21\uff0c\u8f6c\u6362\u5b8c\u7684\u6570\u636e\u5fc5\u987b\u8f6c\u8fd0\u51fa\u6765\uff0c\u5426\u5219\u6570\u636e\u5c31\u4f1a\u88ab\u8986\u76d6\u4e22\u5931\uff0c\u5982\u679c\u76f4\u63a5\u8ba9CPU\u6765\u5e72\u8fd9\u4e2a\u6d3b\uff0c\u90a3CPU\u6bcf\u8fc71ms\u5c31\u5f97\u6765\u8f6c\u8fd0\u4e00\u4e0b\u6570\u636e\uff0c\u8fd9\u6837\u4f1a\u8d39\u65f6\u8d39\u529b\uff0c\u5f71\u54cdCPU\u7684\u6b63\u5e38\u5de5\u4f5c\uff0c\u800c\u4e14\u8fd9\u4e2a\u6d3b\u5c31\u662f\u7b80\u5355\u7684\u6570\u636e\u642c\u8fd0\uff0c\u4e5f\u6ca1\u5fc5\u8981\u8ba9CPU\u6765\uff0c\u4e8e\u662fDMA\u8fd9\u4e2a\u5c0f\u79d8\u4e66\u5c31\u6709\u7528\u4e86\uff0cDMA\u4e3b\u8981\u5c31\u662f\u5e72\u8fd9\u4e9b\u50cf\u6570\u636e\u642c\u8fd0\u8fd9\u6837\u7684\uff0c\u7b80\u5355\u4e14\u53cd\u590d\u8981\u5e72\u7684\u4e8b\u60c5\uff0c\u90a3DMA\u901a\u8fc7DMA\u603b\u7ebf\u8fde\u63a5\u5230\u603b\u7ebf\u77e9\u9635\u4e0a\uff0c\u4ed6\u53ef\u4ee5\u62e5\u6709\u548cCPU\u4e00\u6837\u7684\u603b\u7ebf\u63a7\u5236\u6743\uff0c\u7528\u4e8e\u8bbf\u95ee\u8fd9\u4e9b\u5916\u8bbe\u5c0f\u5f1f\uff0c\u5f53\u9700\u8981DMA\u642c\u8fd0\u6570\u636e\u65f6\uff0c\u5916\u8bbe\u5c0f\u5f1f\u5c31\u4f1a\u901a\u8fc7\u8bf7\u6c42\u7ebf\u53d1\u9001DMA\u8bf7\u6c42\uff0c\u7136\u540eDMA\u5c31\u4f1a\u83b7\u5f97\u603b\u7ebf\u63a7\u5236\u6743\uff0c\u8bbf\u95ee\u5e76\u8f6c\u8fd0\u6570\u636e\uff0c\u6574\u4e2a\u8fc7\u7a0b\u4e0d\u9700\u8981CPU\u7684\u53c2\u4e0e\uff0c\u7701\u4e0b\u4e86CPU\u7684\u65f6\u95f4\u7528\u6765\u5e72\u5176\u4ed6\u7684\u4e8b\u60c5\uff0c\u8fd9\u5c31\u662fDMA\u7684\u7528\u9014\u3002<\/p>\n<h2>\u82af\u7247\u7684\u5f15\u811a\u5b9a\u4e49<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-148\" src=\"https:\/\/aoofoo.com\/wp-content\/uploads\/2024\/06\/\u5f15\u811a\u5b9a\u4e49.png\" alt=\"\" width=\"710\" height=\"967\" 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src=\"https:\/\/aoofoo.com\/wp-content\/uploads\/2024\/06\/\u542f\u52a8\u914d\u7f6e.png\" alt=\"\" width=\"961\" height=\"309\" 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