{"id":58159,"date":"2025-08-16T05:39:58","date_gmt":"2025-08-15T21:39:58","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/58159.html"},"modified":"2025-08-16T05:39:58","modified_gmt":"2025-08-15T21:39:58","slug":"%e3%80%90stm32cubemx%e5%ad%a6%e4%b9%a0%e6%8c%87%e5%8d%97-spi%e4%b9%8bdma%e3%80%91","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/58159.html","title":{"rendered":"\u3010STM32CubeMX\u5b66\u4e60\u6307\u5357---SPI\u4e4bDMA\u3011"},"content":{"rendered":"<h4>\u4f7f\u7528STM32CubeMX\u751f\u6210SPI DMA\u5de5\u7a0b\u7684\u6b65\u9aa4<\/h4>\n<p>\u5b89\u88c5\u5e76\u542f\u52a8STM32CubeMX<br \/>\n\u786e\u4fdd\u5df2\u5b89\u88c5\u6700\u65b0\u7248\u672c\u7684STM32CubeMX\u3002\u542f\u52a8\u8f6f\u4ef6\u540e&#xff0c;\u9009\u62e9\u76ee\u6807STM32\u7cfb\u5217\u578b\u53f7&#xff08;\u5982STM32F1&#xff09;&#xff0c;\u6216\u901a\u8fc7\u201cNew Project\u201d\u521b\u5efa\u65b0\u9879\u76ee\u3002<\/p>\n<p>\u914d\u7f6eSPI\u5916\u8bbe<br \/>\n\u5728\u201cPinout &amp; Configuration\u201d\u6807\u7b7e\u9875\u4e2d&#xff0c;\u627e\u5230SPI\u6a21\u5757&#xff08;\u5982SPI1\u3001SPI2\u7b49&#xff09;\u3002\u5c06SPI\u6a21\u5f0f\u8bbe\u7f6e\u4e3a\u201cFull-Duplex Master\u201d\u6216\u6839\u636e\u9700\u6c42\u9009\u62e9\u5176\u4ed6\u6a21\u5f0f\u3002<br \/>\n\u542f\u7528\u786c\u4ef6NSS\u4fe1\u53f7&#xff08;\u5982\u9700\u4ece\u673a\u9009\u62e9&#xff09;\u6216\u4f7f\u7528\u8f6f\u4ef6NSS\u3002\u914d\u7f6e\u65f6\u949f\u6781\u6027&#xff08;CPOL&#xff09;\u548c\u76f8\u4f4d&#xff08;CPHA&#xff09;\u4ee5\u5339\u914d\u5916\u8bbe\u65f6\u5e8f\u8981\u6c42\u3002<\/p>\n<p>\u542f\u7528DMA\u4f20\u8f93<br \/>\n\u5728\u201cDMA Settings\u201d\u9009\u9879\u5361\u4e2d&#xff0c;\u4e3aSPI\u7684\u53d1\u9001&#xff08;TX&#xff09;\u548c\u63a5\u6536&#xff08;RX&#xff09;\u901a\u9053\u6dfb\u52a0DMA\u8bf7\u6c42\u3002\u9009\u62e9\u4f18\u5148\u7ea7&#xff08;\u5982\u201cMedium\u201d&#xff09;\u548c\u6a21\u5f0f&#xff1a;<\/p>\n<ul>\n<li>\u6b63\u5e38\u6a21\u5f0f&#xff1a;\u5355\u6b21\u4f20\u8f93\u540e\u505c\u6b62\u3002<\/li>\n<li>\u5faa\u73af\u6a21\u5f0f&#xff1a;\u6301\u7eed\u4f20\u8f93&#xff08;\u9002\u7528\u4e8e\u8fde\u7eed\u6570\u636e\u6d41&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u786e\u4fddDMA\u4e2d\u65ad\u5df2\u542f\u7528&#xff08;\u5982\u201cDMAx Channelx Global Interrupt\u201d&#xff09;&#xff0c;\u4ee5\u4fbf\u5904\u7406\u4f20\u8f93\u5b8c\u6210\u4e8b\u4ef6\u3002<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250815213953-689fa929c4af7.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u65f6\u949f\u914d\u7f6e<br \/>\n\u5728\u201cClock Configuration\u201d\u6807\u7b7e\u9875\u4e2d&#xff0c;\u8bbe\u7f6e\u7cfb\u7edf\u65f6\u949f&#xff08;HCLK&#xff09;\u548cSPI\u5916\u8bbe\u65f6\u949f&#xff08;APB1\/APB2&#xff09;\u3002\u786e\u4fddSPI\u65f6\u949f\u4e0d\u8d85\u8fc7\u5176\u6700\u5927\u9891\u7387&#xff08;\u53c2\u8003\u82af\u7247\u624b\u518c&#xff09;\u3002<\/p>\n<p>\u751f\u6210\u4ee3\u7801<br \/>\n\u5728\u201cProject Manager\u201d\u4e2d\u8bbe\u7f6e\u9879\u76ee\u540d\u79f0\u3001\u8def\u5f84\u548cIDE&#xff08;\u5982Keil\u3001IAR\u6216STM32CubeIDE&#xff09;\u3002\u52fe\u9009\u201cGenerate peripheral initialization as a pair of .c\/.h files\u201d\u4ee5\u4fbf\u6a21\u5757\u5316\u7ba1\u7406\u4ee3\u7801\u3002<br \/>\n\u70b9\u51fb\u201cGenerate Code\u201d\u751f\u6210\u5de5\u7a0b\u6587\u4ef6\u3002<\/p>\n<h4>\u5173\u952e\u4ee3\u7801\u793a\u4f8b<\/h4>\n<p>\u4ee5\u4e0b\u662f\u751f\u6210\u7684\u4ee3\u7801\u4e2d\u9700\u8981\u5173\u6ce8\u7684\u51fd\u6570\u548c\u914d\u7f6e&#xff1a;<\/p>\n<p>SPI\u521d\u59cb\u5316&#xff08;\u7531CubeMX\u751f\u6210&#xff09;<\/p>\n<p><span class=\"token comment\">\/* SPI1 init function *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">MX_SPI1_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  hspi1<span class=\"token punctuation\">.<\/span>Instance <span class=\"token operator\">&#061;<\/span> SPI1<span class=\"token punctuation\">;<\/span><br \/>\n  hspi1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>Mode <span class=\"token operator\">&#061;<\/span> SPI_MODE_MASTER<span class=\"token punctuation\">;<\/span><br \/>\n  hspi1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>Direction <span class=\"token operator\">&#061;<\/span> SPI_DIRECTION_2LINES<span class=\"token punctuation\">;<\/span><br \/>\n  hspi1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>DataSize <span class=\"token operator\">&#061;<\/span> SPI_DATASIZE_8BIT<span class=\"token punctuation\">;<\/span><br \/>\n  hspi1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>CLKPolarity <span class=\"token operator\">&#061;<\/span> SPI_POLARITY_LOW<span class=\"token punctuation\">;<\/span><br \/>\n  hspi1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>CLKPhase <span class=\"token operator\">&#061;<\/span> SPI_PHASE_1EDGE<span class=\"token punctuation\">;<\/span><br \/>\n  hspi1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>NSS <span class=\"token operator\">&#061;<\/span> SPI_NSS_SOFT<span class=\"token punctuation\">;<\/span><br \/>\n  hspi1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>BaudRatePrescaler <span class=\"token operator\">&#061;<\/span> SPI_BAUDRATEPRESCALER_16<span class=\"token punctuation\">;<\/span><br \/>\n  hspi1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>FirstBit <span class=\"token operator\">&#061;<\/span> SPI_FIRSTBIT_MSB<span class=\"token punctuation\">;<\/span><br \/>\n  hspi1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>TIMode <span class=\"token operator\">&#061;<\/span> SPI_TIMODE_DISABLE<span class=\"token punctuation\">;<\/span><br \/>\n  hspi1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>CRCCalculation <span class=\"token operator\">&#061;<\/span> SPI_CRCCALCULATION_DISABLE<span class=\"token punctuation\">;<\/span><br \/>\n  hspi1<span class=\"token punctuation\">.<\/span>Init<span class=\"token punctuation\">.<\/span>CRCPolynomial <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">HAL_SPI_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>hspi1<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> HAL_OK<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">Error_Handler<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>DMA\u53d1\u9001\/\u63a5\u6536\u6570\u636e<\/p>\n<p><span class=\"token comment\">\/\/ \u542f\u52a8SPI DMA\u4f20\u8f93&#xff08;\u53d1\u9001&#043;\u63a5\u6536&#xff09;<\/span><br \/>\n<span class=\"token function\">HAL_SPI_TransmitReceive_DMA<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>hspi1<span class=\"token punctuation\">,<\/span> txBuffer<span class=\"token punctuation\">,<\/span> rxBuffer<span class=\"token punctuation\">,<\/span> bufferSize<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ DMA\u4f20\u8f93\u5b8c\u6210\u56de\u8c03\u51fd\u6570&#xff08;\u9700\u7528\u6237\u5b9e\u73b0&#xff09;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">HAL_SPI_TxRxCpltCallback<\/span><span class=\"token punctuation\">(<\/span>SPI_HandleTypeDef <span class=\"token operator\">*<\/span>hspi<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>hspi <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token operator\">&amp;<\/span>hspi1<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5904\u7406\u63a5\u6536\u5230\u7684\u6570\u636e<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>\u5e38\u89c1\u95ee\u9898\u89e3\u51b3<\/h4>\n<p>DMA\u4f20\u8f93\u4e0d\u89e6\u53d1<br \/>\n\u68c0\u67e5DMA\u901a\u9053\u662f\u5426\u4e0eSPI\u5916\u8bbe\u6b63\u786e\u7ed1\u5b9a&#xff0c;\u5e76\u786e\u8ba4NVIC\u4e2d\u5df2\u542f\u7528DMA\u4e2d\u65ad\u3002\u9a8c\u8bc1\u65f6\u949f\u914d\u7f6e\u662f\u5426\u4f7f\u80fd\u4e86DMA\u63a7\u5236\u5668\u65f6\u949f\u3002<\/p>\n<p>\u6570\u636e\u9519\u4f4d\u6216\u4e22\u5931<br \/>\n\u8c03\u6574SPI\u7684CPOL\/CPHA\u53c2\u6570\u4ee5\u5339\u914d\u5916\u8bbe\u65f6\u5e8f\u3002\u786e\u4fddDMA\u7f13\u51b2\u533a\u5730\u5740\u5bf9\u9f50&#xff08;\u598232\u4f4d\u5bf9\u9f50&#xff09;&#xff0c;\u5e76\u68c0\u67e5\u7f13\u51b2\u533a\u5927\u5c0f\u662f\u5426\u5339\u914d\u3002<\/p>\n<p>\u5faa\u73af\u6a21\u5f0f\u4e0b\u7684\u6570\u636e\u8986\u76d6<br \/>\n\u5728\u5faa\u73af\u6a21\u5f0f\u4e2d&#xff0c;DMA\u4f1a\u6301\u7eed\u8986\u76d6\u7f13\u51b2\u533a\u3002\u5982\u9700\u5b9e\u65f6\u5904\u7406\u6570\u636e&#xff0c;\u4f7f\u7528\u53cc\u7f13\u51b2\u533a\u6a21\u5f0f\u6216\u534a\u4f20\u8f93\u4e2d\u65ad&#xff08;HTIE&#xff09;\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb373\u6b21\uff0c\u70b9\u8d5e11\u6b21\uff0c\u6536\u85cf4\u6b21\u3002\u5728\u201cPinout &amp; Configuration\u201d\u6807\u7b7e\u9875\u4e2d\uff0c\u627e\u5230SPI\u6a21\u5757\uff08\u5982SPI1\u3001SPI2\u7b49\uff09\u3002\u5728\u201cClock Configuration\u201d\u6807\u7b7e\u9875\u4e2d\uff0c\u8bbe\u7f6e\u7cfb\u7edf\u65f6\u949f\uff08HCLK\uff09\u548cSPI\u5916\u8bbe\u65f6\u949f\uff08APB1\/APB2\uff09\u3002\u5728\u201cDMA Settings\u201d\u9009\u9879\u5361\u4e2d\uff0c\u4e3aSPI\u7684\u53d1\u9001\uff08TX\uff09\u548c\u63a5\u6536\uff08RX\uff09\u901a\u9053\u6dfb\u52a0DMA\u8bf7\u6c42\u3002\u914d\u7f6e\u65f6\u949f\u6781\u6027\uff08CPOL\uff09\u548c\u76f8\u4f4d\uff08CPHA\uff09\u4ee5\u5339\u914d\u5916\u8bbe\u65f6\u5e8f\u8981\u6c42\u3002\u786e\u4fddDMA\u4e2d\u65ad\u5df2\u542f\u7528\uff08\u5982\u201cDMAx Channelx Global Interrupt\u201d\uff09\uff0c\u4ee5\u4fbf\u5904\u7406\u4f20\u8f93\u5b8c\u6210\u4e8b\u4ef6\u3002<\/p>\n","protected":false},"author":2,"featured_media":58158,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[174,217,6117,270],"topic":[],"class_list":["post-58159","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-c","tag-stm32","tag-stm32cubemx","tag-270"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - 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Configuration\u201d\u6807\u7b7e\u9875\u4e2d\uff0c\u8bbe\u7f6e\u7cfb\u7edf\u65f6\u949f\uff08HCLK\uff09\u548cSPI\u5916\u8bbe\u65f6\u949f\uff08APB1\/APB2\uff09\u3002\u5728\u201cDMA Settings\u201d\u9009\u9879\u5361\u4e2d\uff0c\u4e3aSPI\u7684\u53d1\u9001\uff08TX\uff09\u548c\u63a5\u6536\uff08RX\uff09\u901a\u9053\u6dfb\u52a0DMA\u8bf7\u6c42\u3002\u914d\u7f6e\u65f6\u949f\u6781\u6027\uff08CPOL\uff09\u548c\u76f8\u4f4d\uff08CPHA\uff09\u4ee5\u5339\u914d\u5916\u8bbe\u65f6\u5e8f\u8981\u6c42\u3002\u786e\u4fddDMA\u4e2d\u65ad\u5df2\u542f\u7528\uff08\u5982\u201cDMAx Channelx Global Interrupt\u201d\uff09\uff0c\u4ee5\u4fbf\u5904\u7406\u4f20\u8f93\u5b8c\u6210\u4e8b\u4ef6\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/58159.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-15T21:39:58+00:00\" \/>\n<meta property=\"og:image\" 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