{"id":73035,"date":"2026-02-06T22:57:19","date_gmt":"2026-02-06T14:57:19","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/73035.html"},"modified":"2026-02-06T22:57:19","modified_gmt":"2026-02-06T14:57:19","slug":"stm32h743ztf%e5%8d%a1%e5%ae%9e%e6%88%98%ef%bc%9a4%e4%bd%8dsdmmc%e9%ab%98%e9%80%9f%e5%ad%98%e5%82%a8%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/73035.html","title":{"rendered":"STM32H743Z+TF\u5361\u5b9e\u6218\uff1a4\u4f4dSDMMC\u9ad8\u901f\u5b58\u50a8\u6307\u5357"},"content":{"rendered":"

\u76ee\u5f55<\/p>\n

\u4e00\u3001\u6838\u5fc3\u6982\u5ff5\u5148\u7406\u6e05（\u521d\u5b66\u8005\u5fc5\u770b，\u907f\u514d\u672f\u8bed\u6df7\u6dc6）<\/p>\n

1. SDMMC \u662f\u4ec0\u4e48？<\/p>\n

2. TF \u5361\u4e0e SDMMC \u7684\u5339\u914d\u6027<\/p>\n

3. SDMMC \u7684\u4e24\u79cd\u6570\u636e\u7ebf\u6a21\u5f0f（\u521d\u5b66\u8005\u4f18\u5148 4 \u4f4d）<\/p>\n

4. \u5173\u952e\u524d\u63d0：TF \u5361\u7684\u6700\u5c0f\u8bfb\u5199\u5355\u4f4d<\/p>\n

\u4e8c\u3001STM32H743Z SDMMC \u63a5\u53e3\u6838\u5fc3\u539f\u7406<\/p>\n

1. STM32H743Z \u7684 SDMMC \u5916\u8bbe\u7279\u6027（\u9488\u5bf9\u521d\u5b66\u8005，\u53ea\u8bb2\u5173\u952e）<\/p>\n

2. SDMMC \u901a\u4fe1\u7684\u6838\u5fc3\u5f15\u811a\u529f\u80fd<\/p>\n

3. \u53ef\u9009\u8f85\u52a9\u5f15\u811a（\u521d\u5b66\u8005\u53ef\u5148\u4e0d\u63a5，\u7b80\u5316\u7535\u8def）<\/p>\n

4. \u6838\u5fc3\u901a\u4fe1\u903b\u8f91（\u6781\u7b80\u7248）<\/p>\n

\u4e09\u3001STM32H743Z + TF \u5361 \u786c\u4ef6\u8fde\u63a5（4 \u4f4d\u6a21\u5f0f，\u521d\u5b66\u8005\u6807\u51c6\u7248）<\/p>\n

1. \u6838\u5fc3\u786c\u4ef6\u51c6\u5907<\/p>\n

2. SDMMC1 \u5f15\u811a\u5b9a\u4e49（STM32H743ZI 208 \u5f15\u811a，\u56fa\u5b9a\u4e0d\u53ef\u6539）<\/p>\n

3. \u786c\u4ef6\u8fde\u63a5\u793a\u610f\u56fe（\u521d\u5b66\u8005\u76f4\u89c2\u7248）<\/p>\n

4. \u786c\u4ef6\u5173\u952e\u6ce8\u610f\u4e8b\u9879（\u907f\u5751\u6838\u5fc3，\u521d\u5b66\u8005\u5fc5\u987b\u9075\u5b88）<\/p>\n

\u56db\u3001\u8f6f\u4ef6\u5b9e\u73b0（HAL \u5e93 + FatFS，\u521d\u5b66\u8005\u96f6\u57fa\u7840\u7248）<\/p>\n

\u524d\u7f6e\u51c6\u5907<\/p>\n

\u6b65\u9aa4 1：STM32CubeMX \u914d\u7f6e（\u81ea\u52a8\u751f\u6210\u521d\u59cb\u5316\u4ee3\u7801，\u96f6\u57fa\u7840）<\/p>\n

1. \u82af\u7247\u9009\u62e9：STM32H743ZIT6（208 \u5f15\u811a，Z \u7ed3\u5c3e）；<\/p>\n

2. \u65f6\u949f\u914d\u7f6e（H7 \u6838\u5fc3，\u5fc5\u987b\u6b63\u786e）<\/p>\n

3. SDMMC1 \u914d\u7f6e<\/p>\n

4. GPIO \u914d\u7f6e<\/p>\n

5. \u751f\u6210\u4ee3\u7801<\/p>\n

\u6b65\u9aa4 2：FatFS \u6587\u4ef6\u7cfb\u7edf\u79fb\u690d（\u6781\u7b80\u7248，CubeMX \u96c6\u6210）<\/p>\n

\u6b65\u9aa4 3：\u6838\u5fc3\u4ee3\u7801\u5b9e\u73b0（\u6587\u4ef6\u8bfb\u5199，\u96f6\u57fa\u7840\u53ef\u76f4\u63a5\u590d\u5236）<\/p>\n

\u5173\u952e\u4ee3\u7801\u89e3\u91ca（\u521d\u5b66\u8005\u91cd\u70b9\u7406\u89e3）<\/p>\n

\u6b65\u9aa4 4：\u6d4b\u8bd5\u9a8c\u8bc1<\/p>\n

\u4e94\u3001\u5178\u578b\u5e94\u7528\u573a\u666f（\u7ed3\u5408 STM32H743Z \u7684\u9ad8\u6027\u80fd\u4f18\u52bf）<\/p>\n

1. \u5de5\u4e1a \/ \u7269\u8054\u7f51\u5927\u6570\u636e\u65e5\u5fd7\u5b58\u50a8（\u6700\u5e38\u7528）<\/p>\n

2. Bootloader \u56fa\u4ef6\u5347\u7ea7（\u5d4c\u5165\u5f0f\u5fc5\u5907）<\/p>\n

3. \u591a\u5a92\u4f53\u6570\u636e\u5b58\u50a8\u4e0e\u64ad\u653e（H7 \u9ad8\u6027\u80fd\u4e13\u5c5e）<\/p>\n

4. \u79bb\u7ebf\u6570\u636e\u7f13\u5b58\u4e0e\u6279\u91cf\u4e0a\u4f20<\/p>\n

5. \u914d\u7f6e\u6587\u4ef6\u5b58\u50a8（\u7b80\u5316\u9879\u76ee\u5f00\u53d1）<\/p>\n

\u516d\u3001\u521d\u5b66\u8005\u5e38\u89c1\u5751\u4e0e\u907f\u5751\u6280\u5de7（\u6838\u5fc3，\u907f\u514d\u8e29\u96f7）<\/p>\n

\u5751 1：TF \u5361\u521d\u59cb\u5316\u5931\u8d25 \/ \u6302\u8f7d\u5931\u8d25（90% \u7684\u521d\u5b66\u8005\u9047\u5230）<\/p>\n

\u5751 2：\u6587\u4ef6\u5199\u5165\u6210\u529f，\u4f46\u7535\u8111\u7aef\u6253\u5f00\u5185\u5bb9\u4e3a\u7a7a \/ \u4e71\u7801<\/p>\n

\u5751 3：DMA \u4f20\u8f93\u5931\u8d25，\u6570\u636e\u8bfb\u5199\u9519\u8bef<\/p>\n

\u5751 4：SDMMC \u901a\u4fe1\u4e0d\u7a33\u5b9a，\u5076\u5c14\u8bfb\u5199\u5931\u8d25<\/p>\n

\u5751 5：FatFS \u4e0d\u652f\u6301\u4e2d\u6587\u6587\u4ef6\u540d \/ \u4e2d\u6587\u5185\u5bb9<\/p>\n

\u4e03\u3001\u521d\u5b66\u8005\u8fdb\u9636\u65b9\u5411（\u4ece\u57fa\u7840\u5230\u7cbe\u901a）<\/p>\n

\u603b\u7ed3<\/p>\n

\n

STM32H743 \u7684SDMMC \u5916\u8bbe\u662f\u4f20\u7edf SDIO \u5916\u8bbe\u7684\u589e\u5f3a\u7248，\u5b8c\u5168\u517c\u5bb9 SD\/MMC\/TF（MicroSD）\u5361，\u539f\u751f\u652f\u63011 \u4f4d \/ 4 \u4f4d\u6570\u636e\u7ebf（TF \u5361\u4e3b\u6d41\u7528 4 \u4f4d）\u3001\u9ad8\u901f\u65f6\u949f（\u6700\u9ad8 50MHz，SD \u5361 v2.0 \u6807\u51c6），\u4e14\u786c\u4ef6\u652f\u6301 DMA \u4f20\u8f93，\u80fd\u5927\u5e45\u964d\u4f4e CPU \u5360\u7528，\u8fd9\u662f H743 \u76f8\u6bd4 F1\/F4 \u7cfb\u5217 SDIO \u7684\u6838\u5fc3\u4f18\u52bf；\u540c\u65f6 TF \u5361\u548c STM32H743 \u7684 IO \u5747\u4e3a3.3V \u7535\u5e73，\u65e0\u9700\u4efb\u4f55\u7535\u5e73\u8f6c\u6362\u82af\u7247，\u76f4\u63a5\u8fde\u63a5\u5373\u53ef，\u907f\u514d\u989d\u5916\u786c\u4ef6\u6210\u672c\u548c\u5f15\u811a\u635f\u4f24\u3002<\/p>\n

\u4e0b\u9762\u4ece\u6838\u5fc3\u6982\u5ff5\u2192\u63a5\u53e3\u539f\u7406\u2192\u786c\u4ef6\u8fde\u63a5\u2192HAL \u5e93\u8f6f\u4ef6\u5b9e\u73b0\u2192\u5178\u578b\u5e94\u7528\u2192\u521d\u5b66\u8005\u907f\u5751\u516d\u4e2a\u7ef4\u5ea6，\u4e00\u6b65\u6b65\u8bb2\u900f，\u6240\u6709\u5185\u5bb9\u5747\u9002\u914d STM32H743Z\u3002<\/p>\n

\u4e00\u3001\u6838\u5fc3\u6982\u5ff5\u5148\u7406\u6e05（\u521d\u5b66\u8005\u5fc5\u770b，\u907f\u514d\u672f\u8bed\u6df7\u6dc6）<\/h3>\n

1. SDMMC \u662f\u4ec0\u4e48？<\/h4>\n

SDMMC \u662fSecure Digital MultiMediaCard\u7684\u7f29\u5199，\u662f STM32H7 \u7cfb\u5217\u7684\u4e13\u7528\u9ad8\u901f\u5916\u8bbe，\u4e13\u4e3a SD \u5361\u3001MMC \u5361\u3001TF \u5361\u8bbe\u8ba1，\u66ff\u4ee3\u4e86\u4f20\u7edf F1\/F4 \u7684 SDIO \u5916\u8bbe，\u517c\u5bb9 SDIO \u534f\u8bae，\u540c\u65f6\u589e\u52a0\u4e86\u5bf9 MMC \u5361\u7684\u5b8c\u5584\u652f\u6301，\u6838\u5fc3\u4f18\u52bf\u662f\u786c\u4ef6 DMA\u3001\u66f4\u9ad8\u7684\u65f6\u949f\u9891\u7387\u3001\u66f4\u4f4e\u7684 CPU \u5360\u7528，\u9002\u5408\u5927\u6570\u636e\u91cf\u4f20\u8f93\u3002<\/p>\n

2. TF \u5361\u4e0e SDMMC \u7684\u5339\u914d\u6027<\/h4>\n

TF \u5361（MicroSD）\u662f SD \u5361\u7684\u8ff7\u4f60\u7248，\u5b8c\u5168\u517c\u5bb9 SD v2.0 \u534f\u8bae，\u652f\u6301 SDMMC \u76841 \u4f4d \/ 4 \u4f4d\u6570\u636e\u7ebf\u6a21\u5f0f，\u662f\u5d4c\u5165\u5f0f\u4e2d\u6700\u5e38\u7528\u7684\u5916\u7f6e\u5b58\u50a8（\u4f53\u79ef\u5c0f\u3001\u5bb9\u91cf\u5927\u3001\u6027\u4ef7\u6bd4\u9ad8），\u4e5f\u662f SDMMC \u5916\u8bbe\u7684\u4e3b\u8981\u9002\u914d\u5bf9\u8c61\u3002<\/p>\n

3. SDMMC \u7684\u4e24\u79cd\u6570\u636e\u7ebf\u6a21\u5f0f（\u521d\u5b66\u8005\u4f18\u5148 4 \u4f4d）<\/h4>\n

SDMMC \u901a\u4fe1\u4f9d\u8d56\u547d\u4ee4\u7ebf + \u65f6\u949f\u7ebf + \u6570\u636e\u7ebf，\u6570\u636e\u7ebf\u652f\u6301 1 \u4f4d \/ 4 \u4f4d\u914d\u7f6e，4 \u4f4d\u6a21\u5f0f\u662f TF \u5361\u7684\u4e3b\u6d41\u7528\u6cd5（\u901f\u5ea6\u662f 1 \u4f4d\u7684 4 \u500d，\u4e14\u786c\u4ef6\u8fde\u63a5\u4ec5\u591a 2 \u6839\u7ebf，\u590d\u6742\u5ea6\u4f4e）\u3002<\/p>\n\n\u6a21\u5f0f\u6570\u636e\u7ebf\u6570\u91cf\u65f6\u949f\u9891\u7387（TF \u5361）\u4f20\u8f93\u901f\u5ea6\u9002\u5408\u573a\u666f<\/tr>\n\n\n\n
1 \u4f4d<\/td>\nD0<\/td>\n\u6700\u9ad8 50MHz<\/td>\n~12MB\/s<\/td>\n\u6781\u7b80\u5f15\u811a\u3001\u4f4e\u901f\u7387<\/td>\n<\/tr>\n
4 \u4f4d<\/td>\nD0~D3<\/td>\n\u6700\u9ad8 50MHz<\/td>\n~45MB\/s<\/td>\n\u4e3b\u6d41\u573a\u666f\u3001\u9ad8\u901f\u4f20\u8f93<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

4. \u5173\u952e\u524d\u63d0：TF \u5361\u7684\u6700\u5c0f\u8bfb\u5199\u5355\u4f4d<\/h4>\n

\u548c\u6240\u6709 SD\/TF \u5361\u4e00\u81f4，\u6247\u533a（512 \u5b57\u8282） \u662f TF \u5361\u7684\u6700\u5c0f\u8bfb\u5199\u5355\u4f4d，\u6240\u6709\u5e95\u5c42\u786c\u4ef6\u64cd\u4f5c（SDMMC）\u90fd\u5fc5\u987b\u6309\u6247\u533a\u6267\u884c；\u800c FatFS \u6587\u4ef6\u7cfb\u7edf\u4f1a\u5c06\u6247\u533a\u62bd\u8c61\u4e3a \u201c\u6587\u4ef6 \/ \u6587\u4ef6\u5939\u201d，\u8ba9\u6211\u4eec\u50cf\u64cd\u4f5c\u7535\u8111\u786c\u76d8\u4e00\u6837\u8bfb\u5199，\u521d\u5b66\u8005\u76f4\u63a5\u7528 FatFS，\u907f\u5f00\u5e95\u5c42\u6247\u533a\u7ba1\u7406\u7684\u590d\u6742\u95ee\u9898\u3002<\/p>\n

\u4e8c\u3001STM32H743Z SDMMC \u63a5\u53e3\u6838\u5fc3\u539f\u7406<\/h3>\n

1. STM32H743Z \u7684 SDMMC \u5916\u8bbe\u7279\u6027（\u9488\u5bf9\u521d\u5b66\u8005，\u53ea\u8bb2\u5173\u952e）<\/h4>\n

STM32H743ZI \u62e5\u6709\u4e24\u4e2a\u72ec\u7acb\u7684 SDMMC \u5916\u8bbe（SDMMC1\u3001SDMMC2），\u5747\u652f\u6301 4 \u4f4d\u6570\u636e\u7ebf\u3001DMA \u4f20\u8f93\u3001SD v2.0\/MMC v4.41，\u6211\u4eec\u4ee5SDMMC1\u4e3a\u4f8b\u8bb2\u89e3（\u6700\u5e38\u7528，\u5f15\u811a\u5206\u5e03\u66f4\u5408\u7406），\u6838\u5fc3\u7279\u6027：<\/p>\n

    \n
  • \u65f6\u949f\u6e90：\u7531 MCU \u7684PLCK2\u63d0\u4f9b（H743 \u7684 PLCK2 \u6700\u9ad8 100MHz，\u5206\u9891\u540e\u7ed9 SDMMC，\u6700\u9ad8 50MHz，\u5339\u914d TF \u5361\u7684\u9ad8\u901f\u6807\u51c6）；<\/li>\n
  • \u786c\u4ef6 DMA：\u652f\u6301 DMA2 \u63a7\u5236\u5668，\u4f20\u8f93\u6570\u636e\u65f6\u65e0\u9700 CPU \u53c2\u4e0e，\u89e3\u653e\u6838\u5fc3\u5904\u7406\u80fd\u529b；<\/li>\n
  • \u4e2d\u65ad \/ DMA \u53cc\u6a21\u5f0f：\u521d\u5b66\u8005\u7528 DMA \u6a21\u5f0f\u66f4\u7b80\u5355，\u65e0\u4e2d\u65ad\u5d4c\u5957\u95ee\u9898；<\/li>\n
  • \u7535\u538b\u517c\u5bb9：\u4ec5\u652f\u6301 3.3V \u5361（TF \u5361\u5747\u4e3a 3.3V，\u65e0\u9700 5V \u517c\u5bb9）\u3002<\/li>\n<\/ul>\n

    2. SDMMC \u901a\u4fe1\u7684\u6838\u5fc3\u5f15\u811a\u529f\u80fd<\/h4>\n

    SDMMC \u7684\u901a\u4fe1\u4f9d\u8d566 \u6839\u6838\u5fc3\u7ebf（4 \u4f4d\u6a21\u5f0f），\u6240\u6709\u547d\u4ee4 \/ \u6570\u636e\u4f20\u8f93\u90fd\u7531\u65f6\u949f\u540c\u6b65，STM32H743 \u4e3a\u4e3b\u673a（\u63d0\u4f9b\u65f6\u949f\u3001\u53d1\u9001\u547d\u4ee4），TF \u5361\u4e3a\u4ece\u673a（\u54cd\u5e94\u547d\u4ee4\u3001\u4f20\u8f93\u6570\u636e），\u5404\u5f15\u811a\u529f\u80fd\u5982\u4e0b（\u521d\u5b66\u8005\u8bb0\u7262，\u907f\u514d\u63a5\u9519）：<\/p>\n\n\u5f15\u811a\u540d\u79f0\u529f\u80fd\u8bf4\u660e\u5173\u952e\u8981\u6c42<\/tr>\n\n\n\n\n\n\n\n
    SDMMC_CLK<\/td>\n\u65f6\u949f\u7ebf，\u4e3b\u673a\u63d0\u4f9b\u540c\u6b65\u65f6\u949f<\/td>\n\u65e0\u4e0a\u4e0b\u62c9，\u76f4\u63a5\u8fde\u63a5<\/td>\n<\/tr>\n
    SDMMC_CMD<\/td>\n\u547d\u4ee4\u7ebf，\u53cc\u5411（\u4e3b\u673a\u53d1\u547d\u4ee4 \/ \u4ece\u673a\u54cd\u5e94）<\/td>\n\u5fc5\u987b\u63a5 10k\u03a9 \u4e0a\u62c9\u5230 3.3V（\u901a\u4fe1\u7a33\u5b9a\u7684\u6838\u5fc3）<\/td>\n<\/tr>\n
    SDMMC_D0<\/td>\n\u6570\u636e\u7ebf 0，\u53cc\u5411<\/td>\n\u5fc5\u987b\u63a5 10k\u03a9 \u4e0a\u62c9\u5230 3.3V<\/td>\n<\/tr>\n
    SDMMC_D1<\/td>\n\u6570\u636e\u7ebf 1，\u53cc\u5411<\/td>\n4 \u4f4d\u6a21\u5f0f\u5fc5\u987b\u63a5 10k\u03a9 \u4e0a\u62c9\u5230 3.3V，1 \u4f4d\u6a21\u5f0f\u53ef\u60ac\u7a7a<\/td>\n<\/tr>\n
    SDMMC_D2<\/td>\n\u6570\u636e\u7ebf 2，\u53cc\u5411<\/td>\n4 \u4f4d\u6a21\u5f0f\u5fc5\u987b\u63a5 10k\u03a9 \u4e0a\u62c9\u5230 3.3V，1 \u4f4d\u6a21\u5f0f\u53ef\u60ac\u7a7a<\/td>\n<\/tr>\n
    SDMMC_D3<\/td>\n\u6570\u636e\u7ebf 3，\u53cc\u5411<\/td>\n4 \u4f4d\u6a21\u5f0f\u5fc5\u987b\u63a5 10k\u03a9 \u4e0a\u62c9\u5230 3.3V，1 \u4f4d\u6a21\u5f0f\u53ef\u60ac\u7a7a（\u4e5f\u53ef\u505a\u5361\u68c0\u6d4b CD）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    3. \u53ef\u9009\u8f85\u52a9\u5f15\u811a（\u521d\u5b66\u8005\u53ef\u5148\u4e0d\u63a5，\u7b80\u5316\u7535\u8def）<\/h4>\n
      \n
    • CD（\u5361\u68c0\u6d4b）：\u68c0\u6d4b TF \u5361\u662f\u5426\u63d2\u5165，\u4e00\u822c\u63a5 TF \u5361\u5361\u69fd\u7684 CD \u5f15\u811a，\u5230 STM32 \u7684 GPIO（\u4e0a\u62c9 \/ \u4e0b\u62c9），\u65e0\u5361\u65f6\u9ad8 \/ \u4f4e\u7535\u5e73，\u6709\u5361\u65f6\u7ffb\u8f6c；\u521d\u5b66\u8005\u53ef\u7701，\u8f6f\u4ef6\u901a\u8fc7 SDMMC \u521d\u59cb\u5316\u7ed3\u679c\u5224\u65ad\u5361\u662f\u5426\u5b58\u5728；<\/li>\n
    • WP（\u5199\u4fdd\u62a4）：\u68c0\u6d4b TF \u5361\u662f\u5426\u5f00\u542f\u5199\u4fdd\u62a4，\u63a5\u5361\u69fd WP \u5f15\u811a\u5230 STM32 GPIO；\u521d\u5b66\u8005\u53ef\u7701，\u9ed8\u8ba4\u5141\u8bb8\u8bfb\u5199\u3002<\/li>\n<\/ul>\n

      4. \u6838\u5fc3\u901a\u4fe1\u903b\u8f91（\u6781\u7b80\u7248）<\/h4>\n
    • STM32H743 \u901a\u8fc7 SDMMC \u5916\u8bbe\u5411 TF \u5361\u53d1\u9001\u521d\u59cb\u5316\u547d\u4ee4，\u914d\u7f6e TF \u5361\u4e3a 4 \u4f4d\u6570\u636e\u7ebf\u6a21\u5f0f\u3001\u5bf9\u5e94\u65f6\u949f\u9891\u7387；<\/li>\n
    • \u521d\u59cb\u5316\u6210\u529f\u540e，\u4e3b\u673a\u53d1\u9001\u8bfb\u5199\u547d\u4ee4（\u542b\u6247\u533a\u5730\u5740\u3001\u6247\u533a\u6570\u91cf）；<\/li>\n
    • \u4ece\u673a（TF \u5361）\u54cd\u5e94\u547d\u4ee4\u540e，\u901a\u8fc7 D0~D3 \u6570\u636e\u7ebf，\u5728 CLK \u65f6\u949f\u540c\u6b65\u4e0b，\u4ee5DMA \u65b9\u5f0f\u548c\u4e3b\u673a\u4f20\u8f93\u6570\u636e（\u8bfb：TF \u5361\u2192STM32；\u5199：STM32\u2192TF \u5361）；<\/li>\n
    • \u4f20\u8f93\u5b8c\u6210\u540e，SDMMC \u5916\u8bbe\u4ea7\u751f DMA \u5b8c\u6210\u4e2d\u65ad，CPU \u5f97\u77e5\u4f20\u8f93\u7ed3\u675f，\u8fdb\u884c\u540e\u7eed\u5904\u7406\u3002<\/li>\n

      \u4e09\u3001STM32H743Z + TF \u5361 \u786c\u4ef6\u8fde\u63a5（4 \u4f4d\u6a21\u5f0f，\u521d\u5b66\u8005\u6807\u51c6\u7248）<\/h3>\n

      1. \u6838\u5fc3\u786c\u4ef6\u51c6\u5907<\/h4>\n
        \n
      • STM32H743ZI \u5f00\u53d1\u677f（\u6216\u6838\u5fc3\u677f）；<\/li>\n
      • \u6807\u51c6 TF \u5361\u5361\u69fd（\u8d34\u7247 \/ \u76f4\u63d2\u5747\u53ef，\u5e26\u5f15\u811a\u5b9a\u4e49）；<\/li>\n
      • 10k\u03a9 \u8d34\u7247\u7535\u963b \u00d75（CMD+D0~D3 \u5404 1 \u4e2a）；<\/li>\n
      • 0.1\u03bcF \u9676\u74f7\u6ee4\u6ce2\u7535\u5bb9 \u00d71（\u63a5 TF \u5361 VCC \u548c GND \u4e4b\u95f4，\u6ee4\u9664\u7535\u6e90\u566a\u58f0）；<\/li>\n
      • 3.3V \u7535\u6e90（\u7531 STM32 \u5f00\u53d1\u677f\u63d0\u4f9b，\u7ed9 TF \u5361\u4f9b\u7535）\u3002<\/li>\n<\/ul>\n

        2. SDMMC1 \u5f15\u811a\u5b9a\u4e49（STM32H743ZI 208 \u5f15\u811a，\u56fa\u5b9a\u4e0d\u53ef\u6539）<\/h4>\n

        STM32H743Z \u7684 SDMMC1 \u5f15\u811a\u662f\u786c\u4ef6\u56fa\u5b9a\u7684，\u4e0d\u80fd\u50cf SPI \u90a3\u6837\u968f\u610f\u6620\u5c04，\u8fd9\u662f SDMMC \u7684\u7279\u70b9，\u5fc5\u987b\u6309\u82af\u7247\u624b\u518c\u8fde\u63a5，\u6838\u5fc3\u5f15\u811a\u5982\u4e0b（4 \u4f4d\u6a21\u5f0f）：<\/p>\n\nSTM32H743Z \u5f15\u811aSDMMC1 \u529f\u80fd\u5bf9\u5e94 TF \u5361\u5361\u69fd\u5f15\u811a\u5916\u63a5\u5668\u4ef6<\/tr>\n\n\n\n\n\n\n\n\n\n
        PC12<\/td>\nSDMMC1_CK<\/td>\nCLK<\/td>\n\u65e0<\/td>\n<\/tr>\n
        PD2<\/td>\nSDMMC1_CMD<\/td>\nCMD<\/td>\n10k\u03a9 \u4e0a\u62c9\u5230 3.3V<\/td>\n<\/tr>\n
        PC8<\/td>\nSDMMC1_D0<\/td>\nD0\/DO<\/td>\n10k\u03a9 \u4e0a\u62c9\u5230 3.3V<\/td>\n<\/tr>\n
        PC9<\/td>\nSDMMC1_D1<\/td>\nD1<\/td>\n10k\u03a9 \u4e0a\u62c9\u5230 3.3V<\/td>\n<\/tr>\n
        PC10<\/td>\nSDMMC1_D2<\/td>\nD2<\/td>\n10k\u03a9 \u4e0a\u62c9\u5230 3.3V<\/td>\n<\/tr>\n
        PC11<\/td>\nSDMMC1_D3<\/td>\nD3\/CS<\/td>\n10k\u03a9 \u4e0a\u62c9\u5230 3.3V<\/td>\n<\/tr>\n
        3.3V<\/td>\n\u7535\u6e90<\/td>\nVCC<\/td>\n0.1\u03bcF \u7535\u5bb9\u5230 GND<\/td>\n<\/tr>\n
        GND<\/td>\n\u5730<\/td>\nGND<\/td>\n\u65e0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        3. \u786c\u4ef6\u8fde\u63a5\u793a\u610f\u56fe（\u521d\u5b66\u8005\u76f4\u89c2\u7248）<\/h4>\n

        plaintext<\/p>\n

        STM32H743Z 10k\u03a9\u4e0a\u62c9\u21923.3V TF\u5361\u5361\u69fd \u5916\u8bbe
        \nPC12 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2192 CLK \u65f6\u949f
        \nPD2 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2192 CMD \u547d\u4ee4
        \n \u2502
        \nPC8 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u253c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2192 D0 \u6570\u636e0
        \n \u2502
        \nPC9 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u253c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2192 D1 \u6570\u636e1
        \n \u2502
        \nPC10 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u253c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2192 D2 \u6570\u636e2
        \n \u2502
        \nPC11 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2192 D3 \u6570\u636e3
        \n3.3V \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2192 VCC \u7535\u6e90
        \n \u2502
        \n0.1\u03bcF\u7535\u5bb9\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2192 GND \u5730
        \nGND \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2192 GND \u5730<\/p>\n

        4. \u786c\u4ef6\u5173\u952e\u6ce8\u610f\u4e8b\u9879（\u907f\u5751\u6838\u5fc3，\u521d\u5b66\u8005\u5fc5\u987b\u9075\u5b88）<\/h4>\n
      • \u4e25\u7981\u63a5 5V：TF \u5361\u548c STM32H743 \u7684 IO \u5747\u4e3a 3.3V，\u82e5\u7ed9 TF \u5361\u63a5 5V，\u4f1a\u76f4\u63a5\u70e7\u6bc1 TF \u5361；\u82e5 SDMMC \u5f15\u811a\u63a5 5V，\u4f1a\u70e7\u6bc1 STM32 \u5f15\u811a；<\/li>\n
      • \u4e0a\u62c9\u7535\u963b\u4e0d\u53ef\u7f3a：CMD \u548c D0~D3 \u5fc5\u987b\u63a5 10k\u03a9 \u4e0a\u62c9\u5230 3.3V，\u65e0\u62c9\u7535\u963b\u4f1a\u5bfc\u81f4\u901a\u4fe1\u4e0d\u7a33\u5b9a\u3001\u5361\u521d\u59cb\u5316\u5931\u8d25（\u521d\u5b66\u8005\u6700\u5e38\u89c1\u786c\u4ef6\u95ee\u9898）；<\/li>\n
      • \u7535\u6e90\u6ee4\u6ce2：TF \u5361\u8bfb\u5199\u65f6\u77ac\u95f4\u7535\u6d41\u8f83\u5927，\u5fc5\u987b\u5728 VCC \u548c GND \u4e4b\u95f4\u63a5 0.1\u03bcF \u6ee4\u6ce2\u7535\u5bb9，\u5426\u5219\u7535\u6e90\u566a\u58f0\u4f1a\u5bfc\u81f4\u6570\u636e\u4f20\u8f93\u9519\u8bef；<\/li>\n
      • \u8d70\u7ebf\u5c3d\u91cf\u77ed：SDMMC \u662f\u9ad8\u901f\u901a\u4fe1，CLK\/D0~D3\/CMD \u7684\u8d70\u7ebf\u5c3d\u91cf\u77ed\u4e14\u7b49\u957f，\u907f\u514d\u4fe1\u53f7\u8870\u51cf（\u9762\u5305\u677f\u5b9e\u9a8c\u53ef\u5ffd\u7565，PCB \u8bbe\u8ba1\u9700\u6ce8\u610f）；<\/li>\n
      • \u5171\u5730：STM32 \u548c TF \u5361\u7684 GND \u5fc5\u987b\u53ef\u9760\u8fde\u63a5，\u5426\u5219\u4f1a\u51fa\u73b0\u7535\u5e73\u504f\u79fb，\u901a\u4fe1\u5931\u8d25\u3002<\/li>\n

        \u56db\u3001\u8f6f\u4ef6\u5b9e\u73b0（HAL \u5e93 + FatFS，\u521d\u5b66\u8005\u96f6\u57fa\u7840\u7248）<\/h3>\n

        STM32H743 \u7684 SDMMC \u9a71\u52a8\u5206\u4e24\u5c42：\u5e95\u5c42 SDMMC \u786c\u4ef6\u9a71\u52a8（HAL \u5e93） + \u4e0a\u5c42 FatFS \u6587\u4ef6\u7cfb\u7edf\u3002<\/p>\n

          \n
        • \u5e95\u5c42：\u7531 STM32CubeMX \u81ea\u52a8\u751f\u6210 SDMMC+DMA \u521d\u59cb\u5316\u4ee3\u7801，\u8c03\u7528 HAL \u5e93\u7684HAL_SD_Init()\u3001HAL_SD_ReadBlocks_DMA()\u3001HAL_SD_WriteBlocks_DMA()\u5b9e\u73b0\u6247\u533a\u8bfb\u5199；<\/li>\n
        • \u4e0a\u5c42：\u79fb\u690d FatFS \u6587\u4ef6\u7cfb\u7edf，\u5c06\u5e95\u5c42\u6247\u533a\u64cd\u4f5c\u62bd\u8c61\u4e3a\u6587\u4ef6\u64cd\u4f5c\u51fd\u6570（f_open()\u3001f_write()\u3001f_read()\u3001f_close()），\u50cf\u64cd\u4f5c\u7535\u8111 TXT\/CSV \u6587\u4ef6\u4e00\u6837\u8bfb\u5199 TF \u5361，\u521d\u5b66\u8005\u76f4\u63a5\u7528\u4e0a\u5c42，\u65e0\u9700\u5173\u6ce8\u5e95\u5c42\u6247\u533a\u3002<\/li>\n<\/ul>\n

          \u524d\u7f6e\u51c6\u5907<\/h4>\n
        • \u5b89\u88c5STM32CubeMX（\u6700\u65b0\u7248）\u548cMDK-ARM（Keil5）（\u652f\u6301 H7 \u7cfb\u5217）；<\/li>\n
        • \u65b0\u5efa STM32H743ZI \u9879\u76ee，\u914d\u7f6e\u65f6\u949f（\u6838\u5fc3：PLCK2=100MHz，\u4e3a SDMMC \u63d0\u4f9b\u65f6\u949f\u6e90）；<\/li>\n
        • \u51c6\u5907FatFS \u6e90\u7801（\u5b98\u7f51\u514d\u8d39\u4e0b\u8f7d，\u6216 CubeMX \u76f4\u63a5\u96c6\u6210）\u3002<\/li>\n

          \u6b65\u9aa4 1：STM32CubeMX \u914d\u7f6e（\u81ea\u52a8\u751f\u6210\u521d\u59cb\u5316\u4ee3\u7801，\u96f6\u57fa\u7840）<\/h4>\n

          \u8fd9\u662f\u6700\u5173\u952e\u7684\u4e00\u6b65，\u53ef\u89c6\u5316\u914d\u7f6e，\u65e0\u9700\u624b\u52a8\u5199\u5bc4\u5b58\u5668，\u6309\u4ee5\u4e0b\u6b65\u9aa4\u64cd\u4f5c：<\/p>\n

          1. \u82af\u7247\u9009\u62e9：STM32H743ZIT6（208 \u5f15\u811a，Z \u7ed3\u5c3e）；<\/h5>\n
          2. \u65f6\u949f\u914d\u7f6e（H7 \u6838\u5fc3，\u5fc5\u987b\u6b63\u786e）<\/h5>\n
            \n
          • \u7cfb\u7edf\u65f6\u949f\u914d\u7f6e\u4e3a400MHz（H743 \u9ed8\u8ba4\u6700\u9ad8）；<\/li>\n
          • \u914d\u7f6ePLCK2=100MHz（SDMMC1 \u7684\u65f6\u949f\u6e90，CubeMX \u4e2d\u53ef\u5728 Clock Configuration \u9875\u9762\u8bbe\u7f6e，APB2 Prescaler=1，\u5373\u53ef\u8ba9 PLCK2=100MHz）；<\/li>\n
          • SDMMC1 \u7684\u65f6\u949f\u5206\u9891：\u540e\u7eed HAL \u5e93\u4f1a\u81ea\u52a8\u5c06 100MHz \u5206\u9891\u4e3a 50MHz（TF \u5361\u6700\u9ad8\u652f\u6301），\u65e0\u9700\u624b\u52a8\u914d\u7f6e\u3002<\/li>\n<\/ul>\n
            3. SDMMC1 \u914d\u7f6e<\/h5>\n
              \n
            • \u8fdb\u5165Connectivity \u2192 SDMMC1，\u9009\u62e9SD 4-bit Wide bus（4 \u4f4d\u5bbd\u603b\u7ebf，\u4e3b\u6d41\u6a21\u5f0f）；<\/li>\n
            • \u914d\u7f6eDMA Settings：\u70b9\u51fb Add，\u9009\u62e9DMA2 \u2192 Stream3 \u2192 Channel4（SDMMC1 \u7684\u9ed8\u8ba4 DMA \u901a\u9053，CubeMX \u4f1a\u81ea\u52a8\u5339\u914d），\u4f20\u8f93\u6a21\u5f0f\u4e3a Normal（\u5355\u6b21\u4f20\u8f93，\u9002\u5408\u6587\u4ef6\u8bfb\u5199）；<\/li>\n
            • \u5176\u4f59\u53c2\u6570\u9ed8\u8ba4（CubeMX \u5df2\u6309 SD v2.0 \u6807\u51c6\u914d\u7f6e，\u65f6\u949f 50MHz\u3001\u6570\u636e 8 \u4f4d\u7b49）\u3002<\/li>\n<\/ul>\n
              4. GPIO \u914d\u7f6e<\/h5>\n
                \n
              • CubeMX \u4f1a\u81ea\u52a8\u914d\u7f6e SDMMC1 \u7684\u6240\u6709\u5f15\u811a（PC12\u3001PD2\u3001PC8~PC11），\u65e0\u9700\u624b\u52a8\u914d\u7f6e；<\/li>\n
              • \u624b\u52a8\u7ed9 CMD（PD2）\u548c D0~D3（PC8~PC11）\u6dfb\u52a0\u4e0a\u62c9\u7535\u963b：\u5728 GPIO Configuration \u9875\u9762，\u627e\u5230\u5bf9\u5e94\u5f15\u811a，\u5c06 Pull-up\/Pull-down \u8bbe\u7f6e\u4e3aPull-up（\u5185\u90e8\u4e0a\u62c9，\u82e5\u786c\u4ef6\u5df2\u63a5 10k\u03a9 \u4e0a\u62c9，\u6b64\u6b65\u9aa4\u53ef\u7701，\u53cc\u91cd\u4e0a\u62c9\u66f4\u7a33\u5b9a）；<\/li>\n
              • \u82e5\u9700\u8981\u5361\u68c0\u6d4b \/ \u5199\u4fdd\u62a4，\u53ef\u914d\u7f6e\u4e00\u4e2a GPIO（\u5982 PA0）\u4e3aInput Pull-up，\u4f5c\u4e3a CD \u5f15\u811a，\u521d\u5b66\u8005\u53ef\u7701\u3002<\/li>\n<\/ul>\n
                5. \u751f\u6210\u4ee3\u7801<\/h5>\n
                  \n
                • \u9009\u62e9Project Manager，\u8bbe\u7f6e\u9879\u76ee\u540d\u3001\u4fdd\u5b58\u8def\u5f84，\u9009\u62e9 MDK-ARM v5；<\/li>\n
                • \u52fe\u9009Generate peripheral initialization as .c\/.h files，\u70b9\u51fbGENERATE CODE，CubeMX \u4f1a\u81ea\u52a8\u751f\u6210 SDMMC1+DMA \u7684\u6240\u6709\u521d\u59cb\u5316\u4ee3\u7801\u3002<\/li>\n<\/ul>\n

                  \u6b65\u9aa4 2：FatFS \u6587\u4ef6\u7cfb\u7edf\u79fb\u690d（\u6781\u7b80\u7248，CubeMX \u96c6\u6210）<\/h4>\n

                  STM32CubeMX \u5df2\u96c6\u6210 FatFS，\u4e00\u952e\u5f00\u542f，\u65e0\u9700\u624b\u52a8\u79fb\u690d\u6e90\u7801，\u6b65\u9aa4\u5982\u4e0b：<\/p>\n

                • \u8fdb\u5165Middleware \u2192 FatFS，\u9009\u62e9SDMMC1\u4f5c\u4e3a\u5b58\u50a8\u8bbe\u5907，FatFS Version\u9009\u62e9\u6700\u65b0\u7248（\u5982 R0.14）；<\/li>\n
                • \u914d\u7f6e FatFS \u53c2\u6570：FF_FS_READONLY = 0（\u5141\u8bb8\u8bfb\u5199）\u3001FF_USE_FAT32 = 1（\u652f\u6301 FAT32 \u683c\u5f0f，TF \u5361\u9ed8\u8ba4\u683c\u5f0f\u5316\u683c\u5f0f），\u5176\u4f59\u53c2\u6570\u9ed8\u8ba4；<\/li>\n
                • \u91cd\u65b0\u751f\u6210\u4ee3\u7801，CubeMX \u4f1a\u81ea\u52a8\u5c06 FatFS \u6e90\u7801\u6dfb\u52a0\u5230\u9879\u76ee\u4e2d，\u5e76\u5b8c\u6210\u548c SDMMC1 \u7684\u5e95\u5c42\u5bf9\u63a5\u3002<\/li>\n

                  \u6b65\u9aa4 3：\u6838\u5fc3\u4ee3\u7801\u5b9e\u73b0（\u6587\u4ef6\u8bfb\u5199，\u96f6\u57fa\u7840\u53ef\u76f4\u63a5\u590d\u5236）<\/h4>\n

                  CubeMX \u751f\u6210\u7684\u4ee3\u7801\u5df2\u5305\u542b SDMMC1\u3001DMA\u3001FatFS \u7684\u6240\u6709\u521d\u59cb\u5316，\u6211\u4eec\u53ea\u9700\u8c03\u7528FatFS \u7684\u6807\u51c6 API\u5373\u53ef\u5b9e\u73b0 TF \u5361\u7684\u6587\u4ef6\u8bfb\u5199，\u6838\u5fc3\u6d41\u7a0b：\u6302\u8f7d TF \u5361 \u2192 \u6253\u5f00 \/ \u521b\u5efa\u6587\u4ef6 \u2192 \u8bfb\u5199\u6587\u4ef6 \u2192 \u5173\u95ed\u6587\u4ef6 \u2192 \u5378\u8f7d\u5361\u3002<\/p>\n

                  \u4ee5\u4e0b\u662f\u5b8c\u6574\u7684\u6d4b\u8bd5\u4ee3\u7801，\u6dfb\u52a0\u5230main.c\u4e2d，\u6ce8\u91ca\u8be6\u7ec6，\u521d\u5b66\u8005\u53ef\u76f4\u63a5\u4f7f\u7528：<\/p>\n

                  \/* \u5305\u542b\u5fc5\u8981\u5934\u6587\u4ef6（CubeMX\u5df2\u81ea\u52a8\u6dfb\u52a0） *\/
                  \n#include "main.h"
                  \n#include "sdmmc.h"
                  \n#include "fatfs.h"
                  \n#include "dma.h"<\/p>\n

                  \/* FatFS\u76f8\u5173\u53d8\u91cf（CubeMX\u5df2\u5b9a\u4e49，\u65e0\u9700\u624b\u52a8\u58f0\u660e） *\/
                  \nFATFS fs; \/\/ FatFS\u6587\u4ef6\u7cfb\u7edf\u5bf9\u8c61
                  \nFIL fil; \/\/ \u6587\u4ef6\u5bf9\u8c61
                  \nFRESULT res; \/\/ FatFS\u51fd\u6570\u8fd4\u56de\u503c（\u7528\u4e8e\u5224\u65ad\u662f\u5426\u6267\u884c\u6210\u529f）
                  \nuint32_t br, bw; \/\/ \u5b9e\u9645\u8bfb\u53d6\/\u5199\u5165\u7684\u5b57\u8282\u6570<\/p>\n

                  \/* \u6d4b\u8bd5\u6570\u636e *\/
                  \nuint8_t write_buf[] = "STM32H743Z SDMMC + TF\u5361 \u8bfb\u5199\u6d4b\u8bd5！Hello FatFS！"; \/\/ \u8981\u5199\u5165\u7684\u5185\u5bb9
                  \nuint8_t read_buf[100] = {0}; \/\/ \u5b58\u50a8\u8bfb\u53d6\u7684\u5185\u5bb9<\/p>\n

                  int main(void)
                  \n{
                  \n \/* 1. \u7cfb\u7edf\u521d\u59cb\u5316（CubeMX\u81ea\u52a8\u751f\u6210，\u542b\u65f6\u949f\u3001GPIO\u3001SDMMC1\u3001DMA\u3001FatFS） *\/
                  \n HAL_Init();
                  \n SystemClock_Config();
                  \n MX_GPIO_Init();
                  \n MX_DMA_Init();
                  \n MX_SDMMC1_SD_Init();
                  \n MX_FATFS_Init();<\/p>\n

                  \/* 2. \u6302\u8f7dTF\u5361（\u5173\u952e：\u6302\u8f7d\u6210\u529f\u624d\u80fd\u8fdb\u884c\u540e\u7eed\u64cd\u4f5c） *\/
                  \n res = f_mount(&fs, "", 1); \/\/ ""\u8868\u793a\u6839\u76ee\u5f55，1\u8868\u793a\u7acb\u5373\u6302\u8f7d
                  \n if(res != FR_OK)
                  \n {
                  \n \/\/ \u6302\u8f7d\u5931\u8d25：\u53ef\u80fd\u65e0\u5361\u3001\u5361\u672a\u683c\u5f0f\u5316\u3001\u786c\u4ef6\u95ee\u9898
                  \n while(1); \/\/ \u521d\u5b66\u8005\u53ef\u5728\u6b64\u5904\u52a0\u6307\u793a\u706f\u63d0\u793a
                  \n }<\/p>\n

                  \/* 3. \u6253\u5f00\/\u521b\u5efa\u6587\u4ef6（TEST.TXT，\u5728TF\u5361\u6839\u76ee\u5f55） *\/
                  \n \/\/ FA_CREATE_ALWAYS：\u82e5\u6587\u4ef6\u5b58\u5728\u5219\u8986\u76d6，\u4e0d\u5b58\u5728\u5219\u521b\u5efa；FA_WRITE：\u5199\u6743\u9650；FA_READ：\u8bfb\u6743\u9650
                  \n res = f_open(&fil, "TEST.TXT", FA_CREATE_ALWAYS | FA_WRITE | FA_READ);
                  \n if(res != FR_OK)
                  \n {
                  \n f_mount(NULL, "", 1); \/\/ \u6302\u8f7d\u5931\u8d25，\u5378\u8f7d\u5361
                  \n while(1);
                  \n }<\/p>\n

                  \/* 4. \u5411\u6587\u4ef6\u5199\u5165\u6570\u636e *\/
                  \n res = f_write(&fil, write_buf, sizeof(write_buf), &bw);
                  \n if(res != FR_OK || bw != sizeof(write_buf))
                  \n {
                  \n f_close(&fil); \/\/ \u5199\u5165\u5931\u8d25，\u5173\u95ed\u6587\u4ef6
                  \n f_mount(NULL, "", 1); \/\/ \u5378\u8f7d\u5361
                  \n while(1);
                  \n }<\/p>\n

                  \/* 5. \u5c06\u6587\u4ef6\u8bfb\u5199\u6307\u9488\u79fb\u5230\u6587\u4ef6\u5f00\u5934（\u51c6\u5907\u8bfb\u53d6） *\/
                  \n f_lseek(&fil, 0);<\/p>\n

                  \/* 6. \u4ece\u6587\u4ef6\u8bfb\u53d6\u6570\u636e\u5230\u7f13\u51b2\u533a *\/
                  \n res = f_read(&fil, read_buf, sizeof(write_buf), &br);
                  \n if(res != FR_OK || br != sizeof(write_buf))
                  \n {
                  \n f_close(&fil);
                  \n f_mount(NULL, "", 1);
                  \n while(1);
                  \n }<\/p>\n

                  \/* 7. \u64cd\u4f5c\u5b8c\u6210：\u5173\u95ed\u6587\u4ef6 + \u5378\u8f7d\u5361 *\/
                  \n f_close(&fil);
                  \n f_mount(NULL, "", 1); \/\/ \u5378\u8f7d\u5361，\u91ca\u653e\u8d44\u6e90<\/p>\n

                  \/* 8. \u8bfb\u5199\u6210\u529f：read_buf\u4e2d\u5df2\u5b58\u50a8\u8bfb\u53d6\u7684\u5185\u5bb9，\u53ef\u901a\u8fc7\u4e32\u53e3\u6253\u5370\u67e5\u770b *\/
                  \n while (1)
                  \n {
                  \n \/\/ \u6b64\u5904\u53ef\u6dfb\u52a0\u6307\u793a\u706f\u95ea\u70c1，\u63d0\u793a\u64cd\u4f5c\u6210\u529f
                  \n HAL_Delay(500);
                  \n HAL_GPIO_TogglePin(LED_GPIO_Port, LED_Pin); \/\/ \u82e5\u6709LED\u5f15\u811a，\u53ef\u914d\u7f6e\u540e\u4f7f\u7528
                  \n }
                  \n}<\/p>\n

                  \u5173\u952e\u4ee3\u7801\u89e3\u91ca（\u521d\u5b66\u8005\u91cd\u70b9\u7406\u89e3）<\/h4>\n
                • f_mount(&fs, "", 1)：\u5c06 FatFS \u6587\u4ef6\u7cfb\u7edf\u6302\u8f7d\u5230 TF \u5361\u6839\u76ee\u5f55，\u662f\u6240\u6709\u6587\u4ef6\u64cd\u4f5c\u7684\u524d\u63d0，\u6302\u8f7d\u5931\u8d25\u5219\u540e\u7eed\u64cd\u4f5c\u90fd\u65e0\u6cd5\u8fdb\u884c；<\/li>\n
                • f_open()：\u6253\u5f00 \/ \u521b\u5efa\u6587\u4ef6，\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u6587\u4ef6\u540d（\u652f\u6301\u82f1\u6587 \/ \u6570\u5b57，\u521d\u5b66\u8005\u907f\u514d\u4e2d\u6587），\u7b2c\u4e09\u4e2a\u53c2\u6570\u662f\u64cd\u4f5c\u6743\u9650；<\/li>\n
                • f_write()\/f_read()：\u8bfb\u5199\u6587\u4ef6，\u7b2c\u56db\u4e2a\u53c2\u6570\u662f\u5b9e\u9645\u4f20\u8f93\u7684\u5b57\u8282\u6570，\u5fc5\u987b\u5224\u65ad\u662f\u5426\u548c\u9884\u671f\u4e00\u81f4（\u9632\u6b62\u6570\u636e\u4e22\u5931）；<\/li>\n
                • f_lseek()：\u79fb\u52a8\u6587\u4ef6\u8bfb\u5199\u6307\u9488，\u5199\u5165\u540e\u6307\u9488\u5728\u6587\u4ef6\u672b\u5c3e，\u5fc5\u987b\u79fb\u5230\u5f00\u5934\u624d\u80fd\u8bfb\u53d6\u5230\u521a\u5199\u5165\u7684\u5185\u5bb9；<\/li>\n
                • f_close()\/f_mount(NULL, "", 1)：\u64cd\u4f5c\u5b8c\u6210\u540e\u5fc5\u987b\u5173\u95ed\u6587\u4ef6\u3001\u5378\u8f7d\u5361，\u91ca\u653e\u786c\u4ef6\u548c\u8f6f\u4ef6\u8d44\u6e90，\u907f\u514d\u5185\u5b58\u6cc4\u6f0f\u3002<\/li>\n

                  \u6b65\u9aa4 4：\u6d4b\u8bd5\u9a8c\u8bc1<\/h4>\n
                • \u5c06 TF \u5361\u683c\u5f0f\u5316\u4e3aFAT32\u683c\u5f0f（\u7535\u8111\u7aef\u683c\u5f0f\u5316，\u7c07\u5927\u5c0f\u9ed8\u8ba4），\u63d2\u5165\u5361\u69fd；<\/li>\n
                • \u5c06\u4ee3\u7801\u4e0b\u8f7d\u5230 STM32H743Z \u5f00\u53d1\u677f，\u4e0a\u7535\u8fd0\u884c；<\/li>\n
                • \u8fd0\u884c\u6210\u529f\u540e，\u62d4\u51fa TF \u5361，\u63d2\u5165\u7535\u8111，\u53ef\u5728\u6839\u76ee\u5f55\u770b\u5230TEST.TXT\u6587\u4ef6，\u6253\u5f00\u540e\u53ef\u89c1\u5199\u5165\u7684\u5185\u5bb9，\u8bf4\u660e\u8bfb\u5199\u6210\u529f\u3002<\/li>\n

                  \u4e94\u3001\u5178\u578b\u5e94\u7528\u573a\u666f（\u7ed3\u5408 STM32H743Z \u7684\u9ad8\u6027\u80fd\u4f18\u52bf）<\/h3>\n

                  STM32H743Z \u7684 SDMMC+TF \u5361\u7ec4\u5408，\u4f9d\u625845MB\/s \u9ad8\u901f\u4f20\u8f93\u3001DMA \u65e0 CPU \u5360\u7528\u3001400MHz \u4e3b\u9891\u5f3a\u5904\u7406\u80fd\u529b，\u9002\u5408\u5927\u6570\u636e\u91cf\u3001\u9ad8\u901f\u7387\u7684\u5e94\u7528\u573a\u666f，\u76f8\u6bd4\u4f4e\u6027\u80fd MCU（\u5982 F1），\u80fd\u5904\u7406\u66f4\u590d\u6742\u7684\u5b58\u50a8\u9700\u6c42，\u5178\u578b\u5e94\u7528\u5982\u4e0b：<\/p>\n

                  1. \u5de5\u4e1a \/ \u7269\u8054\u7f51\u5927\u6570\u636e\u65e5\u5fd7\u5b58\u50a8（\u6700\u5e38\u7528）<\/h4>\n
                    \n
                  • \u573a\u666f：\u73af\u5883\u76d1\u6d4b（\u6e29\u6e7f\u5ea6\u3001\u6c14\u538b\u3001PM2.5）\u3001\u5de5\u4e1a\u8bbe\u5907（\u7535\u6d41\u3001\u7535\u538b\u3001\u8f6c\u901f）\u3001\u7269\u8054\u7f51\u7ec8\u7aef\u7684\u4f20\u611f\u5668\u6570\u636e，\u6309\u65f6\u95f4\u6233\u6301\u7eed\u5b58\u50a8\u5230 TF \u5361；<\/li>\n
                  • \u4f18\u52bf：SDMMC 4 \u4f4d\u6a21\u5f0f\u9ad8\u901f\u5199\u5165，DMA \u4f20\u8f93\u4e0d\u5360\u7528 CPU，H743 \u53ef\u540c\u65f6\u5904\u7406\u4f20\u611f\u5668\u91c7\u96c6\u3001\u6570\u636e\u89e3\u6790\u3001\u7f51\u7edc\u4f20\u8f93，TF \u5361\u5927\u5bb9\u91cf（\u6700\u5927 256G）\u53ef\u5b58\u50a8\u6570\u6708\u751a\u81f3\u6570\u5e74\u7684\u65e5\u5fd7；<\/li>\n
                  • \u5b9e\u73b0：\u7528 FatFS \u751f\u6210CSV \u683c\u5f0f\u6587\u4ef6（\u5982 20260202_log.csv），\u6bcf\u884c\u5b58\u50a8 \u201c\u65f6\u95f4\u6233 + \u4f20\u611f\u5668 1 + \u4f20\u611f\u5668 2+…\u201d，\u7535\u8111\u7aef\u53ef\u76f4\u63a5\u7528 Excel \u6253\u5f00\u5206\u6790\u3002<\/li>\n<\/ul>\n

                    2. Bootloader \u56fa\u4ef6\u5347\u7ea7（\u5d4c\u5165\u5f0f\u5fc5\u5907）<\/h4>\n
                      \n
                    • \u573a\u666f：\u5c06 STM32 \u7684\u5e94\u7528\u56fa\u4ef6（.bin \u6587\u4ef6）\u5b58\u50a8\u5230 TF \u5361，Bootloader \u542f\u52a8\u540e，\u901a\u8fc7 SDMMC \u9ad8\u901f\u8bfb\u53d6\u56fa\u4ef6\u6570\u636e，\u5199\u5165\u5185\u90e8 FLASH \u6216\u5916\u90e8 QSPI FLASH，\u5b8c\u6210\u56fa\u4ef6\u5347\u7ea7；<\/li>\n
                    • \u4f18\u52bf：\u76f8\u6bd4 UART\/USB \u5347\u7ea7，TF \u5361\u5347\u7ea7\u901f\u5ea6\u5feb（45MB\/s \u8fdc\u5927\u4e8e UART \u7684 115200bps）\u3001\u64cd\u4f5c\u65b9\u4fbf（\u65e0\u9700\u8fde\u63a5\u7535\u8111，\u76f4\u63a5\u6362 TF \u5361\u5373\u53ef），\u9002\u5408\u5de5\u4e1a\u73b0\u573a\u65e0\u7535\u8111\u7684\u573a\u666f；<\/li>\n
                    • \u9002\u914d：Bootloader \u4ee3\u7801\u91cf\u5c0f，HAL \u5e93\u7684 SDMMC \u5e95\u5c42\u6247\u533a\u8bfb\u5199\u51fd\u6570\u8db3\u591f，\u53ef\u4e0d\u7528 FatFS，\u76f4\u63a5\u8bfb\u53d6.bin \u6587\u4ef6\u7684\u6247\u533a\u6570\u636e，\u66f4\u7cbe\u7b80\u3002<\/li>\n<\/ul>\n

                      3. \u591a\u5a92\u4f53\u6570\u636e\u5b58\u50a8\u4e0e\u64ad\u653e（H7 \u9ad8\u6027\u80fd\u4e13\u5c5e）<\/h4>\n
                        \n
                      • \u573a\u666f：STM32H743Z+LCD \u5c4f + \u97f3\u9891\u89e3\u7801\u82af\u7247\u7684\u9879\u76ee，\u5c06\u56fe\u7247（BMP\/JPG）\u3001\u97f3\u9891（WAV\/MP3）\u3001\u89c6\u9891（MJPEG） \u7b49\u591a\u5a92\u4f53\u6587\u4ef6\u5b58\u50a8\u5230 TF \u5361，\u901a\u8fc7 SDMMC \u9ad8\u901f\u8bfb\u53d6，\u5b9e\u73b0\u56fe\u7247\u6d4f\u89c8\u3001\u97f3\u4e50\u64ad\u653e\u3001\u89c6\u9891\u64ad\u653e；<\/li>\n
                      • \u4f18\u52bf：H743 \u7684 400MHz \u4e3b\u9891\u53ef\u5b9e\u73b0\u56fe\u7247 \/ \u97f3\u9891\u7684\u8f6f\u89e3\u7801，SDMMC \u7684\u9ad8\u901f\u4f20\u8f93\u4fdd\u8bc1\u591a\u5a92\u4f53\u6570\u636e\u7684\u8fde\u7eed\u8bfb\u53d6，\u65e0\u5361\u987f，\u76f8\u6bd4 F1\/F4，H7 \u7684\u5904\u7406\u80fd\u529b\u80fd\u652f\u6491\u66f4\u590d\u6742\u7684\u591a\u5a92\u4f53\u89e3\u6790\u3002<\/li>\n<\/ul>\n

                        4. \u79bb\u7ebf\u6570\u636e\u7f13\u5b58\u4e0e\u6279\u91cf\u4e0a\u4f20<\/h4>\n
                          \n
                        • \u573a\u666f：\u7269\u8054\u7f51\u7ec8\u7aef\u5728\u65e0\u7f51\u7edc（4G\/WiFi）\u65f6，\u5c06\u91c7\u96c6\u7684\u4f20\u611f\u5668\u6570\u636e\u7f13\u5b58\u5230 TF \u5361，\u5f53\u7f51\u7edc\u6062\u590d\u540e，\u901a\u8fc7 SDMMC \u9ad8\u901f\u8bfb\u53d6\u7f13\u5b58\u6570\u636e，\u6279\u91cf\u4e0a\u4f20\u5230\u4e91\u5e73\u53f0；<\/li>\n
                        • \u4f18\u52bf：\u907f\u514d\u65e0\u7f51\u7edc\u65f6\u7684\u6570\u636e\u4e22\u5931，TF \u5361\u5927\u5bb9\u91cf\u53ef\u7f13\u5b58\u5927\u91cf\u6570\u636e，\u7f51\u7edc\u6062\u590d\u540e\u5feb\u901f\u4e0a\u4f20，\u9002\u5408\u7f51\u7edc\u4e0d\u7a33\u5b9a\u7684\u573a\u666f（\u5982\u6237\u5916\u3001\u5de5\u4e1a\u73b0\u573a）\u3002<\/li>\n<\/ul>\n

                          5. \u914d\u7f6e\u6587\u4ef6\u5b58\u50a8（\u7b80\u5316\u9879\u76ee\u5f00\u53d1）<\/h4>\n
                            \n
                          • \u573a\u666f：\u5c06\u9879\u76ee\u7684\u914d\u7f6e\u53c2\u6570（\u5982\u4f20\u611f\u5668\u6821\u51c6\u7cfb\u6570\u3001\u7f51\u7edc\u53c2\u6570\u3001\u8bbe\u5907 ID\u3001LCD \u663e\u793a\u53c2\u6570）\u5b58\u50a8\u5230 TF \u5361\u7684INI\/TXT \u914d\u7f6e\u6587\u4ef6\u4e2d（\u5982 config.ini），STM32 \u542f\u52a8\u540e\u8bfb\u53d6\u914d\u7f6e\u6587\u4ef6，\u52a0\u8f7d\u53c2\u6570；<\/li>\n
                          • \u4f18\u52bf：\u65e0\u9700\u4fee\u6539\u4ee3\u7801\u3001\u65e0\u9700\u91cd\u65b0\u4e0b\u8f7d，\u76f4\u63a5\u5728\u7535\u8111\u7aef\u4fee\u6539\u914d\u7f6e\u6587\u4ef6，\u63d2\u5165 TF \u5361\u5373\u53ef\u66f4\u65b0\u53c2\u6570，\u5927\u5e45\u7b80\u5316\u73b0\u573a\u8c03\u8bd5\u548c\u53c2\u6570\u4fee\u6539\u6d41\u7a0b\u3002<\/li>\n<\/ul>\n

                            \u516d\u3001\u521d\u5b66\u8005\u5e38\u89c1\u5751\u4e0e\u907f\u5751\u6280\u5de7（\u6838\u5fc3，\u907f\u514d\u8e29\u96f7）<\/h3>\n

                            STM32H743Z \u7684 SDMMC \u9a71\u52a8，\u521d\u5b66\u8005\u6700\u5bb9\u6613\u5728\u786c\u4ef6\u8fde\u63a5\u3001\u65f6\u949f\u914d\u7f6e\u3001FatFS \u64cd\u4f5c\u4e0a\u51fa\u9519，\u4ee5\u4e0b\u662f\u6700\u5e38\u89c1\u7684\u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848，\u6309\u51fa\u73b0\u9891\u7387\u6392\u5e8f：<\/p>\n

                            \u5751 1：TF \u5361\u521d\u59cb\u5316\u5931\u8d25 \/ \u6302\u8f7d\u5931\u8d25（90% \u7684\u521d\u5b66\u8005\u9047\u5230）<\/h4>\n

                            \u5e38\u89c1\u539f\u56e0：<\/p>\n

                          • \u786c\u4ef6\u672a\u63a5\u4e0a\u62c9\u7535\u963b（CMD\/D0~D3）；<\/li>\n
                          • SDMMC \u7684\u65f6\u949f\u914d\u7f6e\u9519\u8bef（PLCK2\u2260100MHz，\u5bfc\u81f4 SDMMC \u65f6\u949f\u8d85\u8fc7 50MHz）；<\/li>\n
                          • TF \u5361\u672a\u683c\u5f0f\u5316\u4e3aFAT32\u683c\u5f0f（FatFS \u9ed8\u8ba4\u4e0d\u652f\u6301 NTFS\/EXFAT）；<\/li>\n
                          • \u786c\u4ef6\u63a5\u9519\u5f15\u811a（\u5982\u5c06 PC12（CLK）\u548c PD2（CMD）\u63a5\u53cd）；<\/li>\n
                          • TF \u5361\u635f\u574f\u6216\u672a\u6b63\u786e\u63d2\u5165\u5361\u69fd\u3002<\/li>\n

                            \u89e3\u51b3\u65b9\u6848：<\/p>\n

                          • \u4f18\u5148\u68c0\u67e5\u786c\u4ef6\u4e0a\u62c9\u7535\u963b，\u786e\u4fdd CMD\/D0~D3 \u90fd\u63a5 10k\u03a9 \u4e0a\u62c9\u5230 3.3V；<\/li>\n
                          • \u5728 CubeMX \u4e2d\u786e\u8ba4 Clock Configuration \u9875\u9762\u7684PLCK2=100MHz；<\/li>\n
                          • \u7528\u7535\u8111\u5c06 TF \u5361\u683c\u5f0f\u5316\u4e3a FAT32，\u7c07\u5927\u5c0f\u9ed8\u8ba4，\u683c\u5f0f\u5316\u524d\u5907\u4efd\u6570\u636e；<\/li>\n
                          • \u5bf9\u7167\u82af\u7247\u624b\u518c，\u68c0\u67e5 SDMMC1 \u7684\u5f15\u811a\u662f\u5426\u63a5\u9519（PC12\u3001PD2\u3001PC8~PC11）；<\/li>\n
                          • \u66f4\u6362\u4e00\u5f20\u6b63\u5e38\u7684 TF \u5361（\u5efa\u8bae\u7528 16G\/32G \u7684\u9ad8\u901f TF \u5361，\u907f\u514d\u4f4e\u901f \/ \u6269\u5bb9\u5361）\u3002<\/li>\n

                            \u5751 2：\u6587\u4ef6\u5199\u5165\u6210\u529f，\u4f46\u7535\u8111\u7aef\u6253\u5f00\u5185\u5bb9\u4e3a\u7a7a \/ \u4e71\u7801<\/h4>\n

                            \u5e38\u89c1\u539f\u56e0：<\/p>\n

                          • \u5199\u5165\u540e\u672a\u8c03\u7528f_close(&fil)，\u6570\u636e\u4ecd\u5728 FatFS \u7684\u7f13\u51b2\u533a\u4e2d，\u672a\u5b9e\u9645\u5199\u5165 TF \u5361；<\/li>\n
                          • \u8bfb\u5199\u6307\u9488\u672a\u79fb\u52a8，\u8bfb\u53d6\u5230\u7684\u662f\u7f13\u51b2\u533a\u7684\u7a7a\u6570\u636e；<\/li>\n
                          • \u5199\u5165\u7684\u5b57\u8282\u6570\u548c\u5b9e\u9645\u4f20\u8f93\u7684\u5b57\u8282\u6570\u4e0d\u4e00\u81f4（\u672a\u5224\u65ad bw \u53c2\u6570）\u3002<\/li>\n

                            \u89e3\u51b3\u65b9\u6848：<\/p>\n

                          • \u5199\u5165\u6570\u636e\u540e，\u5fc5\u987b\u8c03\u7528 f_close (&fil)，FatFS \u4f1a\u5c06\u7f13\u51b2\u533a\u7684\u6570\u636e\u5237\u5199\u5230 TF \u5361；<\/li>\n
                          • \u8bfb\u53d6\u524d\u5fc5\u987b\u7528f_lseek(&fil, 0) \u5c06\u8bfb\u5199\u6307\u9488\u79fb\u5230\u6587\u4ef6\u5f00\u5934；<\/li>\n
                          • \u4e25\u683c\u5224\u65ad f_write () \u7684\u8fd4\u56de\u503c\u548c bw \u53c2\u6570，\u786e\u4fddres == FR_OK && bw == \u9884\u671f\u5b57\u8282\u6570\u3002<\/li>\n

                            \u5751 3：DMA \u4f20\u8f93\u5931\u8d25，\u6570\u636e\u8bfb\u5199\u9519\u8bef<\/h4>\n

                            \u5e38\u89c1\u539f\u56e0：<\/p>\n

                          • CubeMX \u4e2d\u914d\u7f6e\u7684DMA \u901a\u9053 \/ \u6d41\u9519\u8bef（SDMMC1 \u5fc5\u987b\u7528 DMA2 Stream3 Channel4）；<\/li>\n
                          • DMA \u4f20\u8f93\u7684\u6570\u636e\u7f13\u51b2\u533a\u672a\u6309 32 \u4f4d\u5bf9\u9f50（H7 \u7684 DMA \u8981\u6c42\u7f13\u51b2\u533a\u5730\u5740 32 \u4f4d\u5bf9\u9f50，\u5426\u5219\u4f20\u8f93\u9519\u8bef）；<\/li>\n
                          • SDMMC \u7684 DMA \u6a21\u5f0f\u914d\u7f6e\u4e3aCircular（\u5faa\u73af\u4f20\u8f93），\u9002\u5408\u8fde\u7eed\u4f20\u8f93，\u6587\u4ef6\u8bfb\u5199\u5e94\u4f7f\u7528Normal（\u5355\u6b21\u4f20\u8f93）\u3002<\/li>\n

                            \u89e3\u51b3\u65b9\u6848：<\/p>\n

                          • CubeMX \u4e2d\u8ba9 SDMMC1 \u81ea\u52a8\u5339\u914d DMA \u901a\u9053，\u4e0d\u8981\u624b\u52a8\u4fee\u6539；<\/li>\n
                          • \u5c06\u8bfb\u5199\u7f13\u51b2\u533a（\u5982 read_buf\u3001write_buf）\u5b9a\u4e49\u4e3a*attribute((aligned(4)))*，\u5f3a\u5236 32 \u4f4d\u5bf9\u9f50，\u793a\u4f8b： uint8_t write_buf[] __attribute__((aligned(4))) = "\u6d4b\u8bd5\u5185\u5bb9";
                            \nuint8_t read_buf[100] __attribute__((aligned(4))) = {0};\n <\/li>\n
                          • CubeMX \u4e2d DMA \u4f20\u8f93\u6a21\u5f0f\u8bbe\u7f6e\u4e3aNormal\u3002<\/li>\n

                            \u5751 4：SDMMC \u901a\u4fe1\u4e0d\u7a33\u5b9a，\u5076\u5c14\u8bfb\u5199\u5931\u8d25<\/h4>\n

                            \u5e38\u89c1\u539f\u56e0：<\/p>\n

                          • TF \u5361\u7535\u6e90\u566a\u58f0\u5927，\u672a\u63a5 0.1\u03bcF \u6ee4\u6ce2\u7535\u5bb9；<\/li>\n
                          • SDMMC \u65f6\u949f\u9891\u7387\u8fc7\u9ad8，\u521d\u5b66\u8005\u53ef\u5148\u964d\u4f4e\u5230 25MHz；<\/li>\n
                          • \u786c\u4ef6\u8d70\u7ebf\u8fc7\u957f \/ \u6742\u4e71（\u9762\u5305\u677f\u5b9e\u9a8c\u53ef\u5ffd\u7565，PCB \u8bbe\u8ba1\u9700\u6ce8\u610f）；<\/li>\n
                          • \u672a\u7ed9 TF \u5361\u7559\u8db3\u591f\u7684\u4f9b\u7535\u7535\u6d41（TF \u5361\u8bfb\u5199\u65f6\u77ac\u95f4\u7535\u6d41\u53ef\u8fbe 100mA \u4ee5\u4e0a，\u786e\u4fdd 3.3V \u7535\u6e90\u80fd\u63d0\u4f9b\u8db3\u591f\u7535\u6d41）\u3002<\/li>\n

                            \u89e3\u51b3\u65b9\u6848：<\/p>\n

                          • \u5728 TF \u5361 VCC \u548c GND \u4e4b\u95f4\u63a5 0.1\u03bcF \u9676\u74f7\u6ee4\u6ce2\u7535\u5bb9，\u9760\u8fd1\u5361\u69fd\u710a\u63a5；<\/li>\n
                          • \u5728 CubeMX \u4e2d\u964d\u4f4e SDMMC1 \u7684\u65f6\u949f\u9891\u7387：\u8fdb\u5165 SDMMC1 \u914d\u7f6e\u9875\u9762，\u5c06Clock Divider\u589e\u5927，\u6216\u5728\u4ee3\u7801\u4e2d\u4fee\u6539hsdmmc1.Init.ClockDiv = 4（\u5c06 50MHz \u964d\u4e3a 25MHz）；<\/li>\n
                          • \u786e\u4fdd 3.3V \u7535\u6e90\u7684\u8f93\u51fa\u7535\u6d41\u2265200mA，\u907f\u514d\u7535\u6e90\u5e26\u8f7d\u80fd\u529b\u4e0d\u8db3；<\/li>\n
                          • \u9762\u5305\u677f\u5b9e\u9a8c\u65f6，\u5c3d\u91cf\u7f29\u77ed SDMMC \u5f15\u811a\u7684\u675c\u90a6\u7ebf\u3002<\/li>\n

                            \u5751 5：FatFS \u4e0d\u652f\u6301\u4e2d\u6587\u6587\u4ef6\u540d \/ \u4e2d\u6587\u5185\u5bb9<\/h4>\n

                            \u5e38\u89c1\u539f\u56e0：FatFS \u9ed8\u8ba4\u7684\u7f16\u7801\u683c\u5f0f\u4e3a ASCII，\u4e0d\u652f\u6301\u4e2d\u6587，\u76f4\u63a5\u7528\u4e2d\u6587\u6587\u4ef6\u540d\u4f1a\u5bfc\u81f4 f_open () \u5931\u8d25，\u5199\u5165\u4e2d\u6587\u4f1a\u51fa\u73b0\u4e71\u7801\u3002<\/p>\n

                            \u89e3\u51b3\u65b9\u6848：<\/p>\n

                          • \u521d\u5b66\u8005\u4f18\u5148\u4f7f\u7528\u82f1\u6587 \/ \u6570\u5b57\u6587\u4ef6\u540d（\u5982 test.txt\u3001log2026.csv），\u907f\u514d\u4e2d\u6587\u95ee\u9898；<\/li>\n
                          • \u82e5\u9700\u8981\u652f\u6301\u4e2d\u6587，\u9700\u4fee\u6539 FatFS \u7684\u914d\u7f6e\u6587\u4ef6ffconf.h，\u5c06FF_CODE_PAGE\u8bbe\u7f6e\u4e3a936（GB2312 \u7f16\u7801），\u5e76\u6dfb\u52a0\u4e2d\u6587\u5b57\u5e93，\u9002\u5408\u6709\u4e2d\u6587\u9700\u6c42\u7684\u573a\u666f（\u7a0d\u590d\u6742，\u521d\u5b66\u8005\u540e\u671f\u518d\u5b66）\u3002<\/li>\n

                            \u4e03\u3001\u521d\u5b66\u8005\u8fdb\u9636\u65b9\u5411（\u4ece\u57fa\u7840\u5230\u7cbe\u901a）<\/h3>\n
                          • \u5e95\u5c42\u6247\u533a\u8bfb\u5199：\u8131\u79bb FatFS，\u76f4\u63a5\u8c03\u7528 HAL \u5e93\u7684HAL_SD_ReadBlocks_DMA()\u3001HAL_SD_WriteBlocks_DMA()\u5b9e\u73b0\u6247\u533a\u8bfb\u5199，\u7406\u89e3 TF \u5361\u7684\u5e95\u5c42\u5b58\u50a8\u7ed3\u6784，\u9002\u5408 Bootloader \u7b49\u7cbe\u7b80\u573a\u666f；<\/li>\n
                          • \u591a\u6587\u4ef6 \/ \u6587\u4ef6\u5939\u64cd\u4f5c：\u5b66\u4e60 FatFS \u7684\u6587\u4ef6\u5939\u521b\u5efa（f_mkdir ()）\u3001\u6587\u4ef6\u91cd\u547d\u540d（f_rename ()）\u3001\u6587\u4ef6\u5220\u9664（f_unlink ()）\u3001\u904d\u5386\u76ee\u5f55（f_readdir ()），\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u6587\u4ef6\u7ba1\u7406；<\/li>\n
                          • \u4e2d\u6587\u652f\u6301：\u4fee\u6539 FatFS \u914d\u7f6e，\u6dfb\u52a0 GB2312\/UTF-8 \u7f16\u7801，\u5b9e\u73b0\u4e2d\u6587\u6587\u4ef6\u540d\u548c\u4e2d\u6587\u5185\u5bb9\u7684\u8bfb\u5199；<\/li>\n
                          • SDMMC \u9ad8\u901f\u6a21\u5f0f：\u5b66\u4e60 SD \u5361\u7684SDR104\/SDR50\u8d85\u9ad8\u901f\u6a21\u5f0f，\u5c06\u4f20\u8f93\u901f\u5ea6\u63d0\u5347\u5230 100MB\/s \u4ee5\u4e0a，\u9002\u5408\u8d85\u5927\u6570\u636e\u91cf\u4f20\u8f93；<\/li>\n
                          • \u53cc SDMMC \u5916\u8bbe\u4f7f\u7528：STM32H743Z \u6709\u4e24\u4e2a SDMMC \u5916\u8bbe，\u53ef\u540c\u65f6\u8fde\u63a5\u4e24\u5f20 TF \u5361，\u5b9e\u73b0\u4e3b\u5907\u5b58\u50a8\u6216\u5206\u7c7b\u5b58\u50a8（\u4e00\u5f20\u5b58\u65e5\u5fd7，\u4e00\u5f20\u5b58\u56fa\u4ef6）；<\/li>\n
                          • \u9519\u8bef\u5904\u7406\u4e0e\u5bb9\u9519：\u5728\u4ee3\u7801\u4e2d\u6dfb\u52a0\u5b8c\u5584\u7684\u9519\u8bef\u5904\u7406（\u5982\u5361\u62d4\u51fa\u68c0\u6d4b\u3001\u5199\u5165\u5931\u8d25\u91cd\u8bd5\u3001\u6587\u4ef6\u635f\u574f\u68c0\u6d4b），\u8ba9\u9879\u76ee\u66f4\u7a33\u5b9a，\u9002\u5408\u5de5\u4e1a\u73b0\u573a\u7684\u4e25\u82db\u73af\u5883\u3002<\/li>\n

                            \u603b\u7ed3<\/h4>\n

                            STM32H743Z \u7684 SDMMC \u5916\u8bbe\u662f\u9a71\u52a8 TF \u5361\u7684\u6700\u4f18\u9009\u62e9，\u76f8\u6bd4 SPI \u6a21\u5f0f，\u62e5\u6709\u9ad8\u901f\u3001DMA \u65e0 CPU \u5360\u7528\u3001\u4e13\u7528\u5916\u8bbe\u7684\u4f18\u52bf，\u6838\u5fc3\u5b66\u4e60\u8981\u70b9\u53ef\u603b\u7ed3\u4e3a 3 \u70b9：<\/p>\n

                          • \u786c\u4ef6\u6838\u5fc3：SDMMC1 \u5f15\u811a\u56fa\u5b9a（PC12\u3001PD2\u3001PC8~PC11），CMD\/D0~D3 \u5fc5\u987b\u63a5 10k\u03a9 \u4e0a\u62c9，3.3V \u4f9b\u7535\u65e0\u7535\u5e73\u8f6c\u6362，\u7535\u6e90\u52a0 0.1\u03bcF \u6ee4\u6ce2；<\/li>\n
                          • \u8f6f\u4ef6\u6838\u5fc3：\u7528 STM32CubeMX \u4e00\u952e\u914d\u7f6e SDMMC1+DMA+FatFS，\u81ea\u52a8\u751f\u6210\u521d\u59cb\u5316\u4ee3\u7801，\u521d\u5b66\u8005\u76f4\u63a5\u8c03\u7528 FatFS \u7684\u6807\u51c6 API（f_mount\/f_open\/f_write\/f_read），\u907f\u5f00\u5e95\u5c42\u590d\u6742\u64cd\u4f5c；<\/li>\n
                          • \u5e94\u7528\u6838\u5fc3：\u4f9d\u6258 H743 \u7684\u9ad8\u6027\u80fd，SDMMC+TF \u5361\u9002\u5408\u5927\u6570\u636e\u65e5\u5fd7\u3001\u56fa\u4ef6\u5347\u7ea7\u3001\u591a\u5a92\u4f53\u5b58\u50a8\u3001\u79bb\u7ebf\u7f13\u5b58\u7b49\u573a\u666f，\u662f\u5d4c\u5165\u5f0f\u9879\u76ee\u4e2d\u5fc5\u5907\u7684\u5916\u7f6e\u5b58\u50a8\u65b9\u6848\u3002<\/li>\n","protected":false},"excerpt":{"rendered":"

                            \u76ee\u5f55
                            \n\u4e00\u3001\u6838\u5fc3\u6982\u5ff5\u5148\u7406\u6e05（\u521d\u5b66\u8005\u5fc5\u770b，\u907f\u514d\u672f\u8bed\u6df7\u6dc6）
                            \n1. SDMMC \u662f\u4ec0\u4e48？
                            \n2. TF \u5361\u4e0e SDMMC \u7684\u5339\u914d\u6027
                            \n3. SDMMC \u7684\u4e24\u79cd\u6570\u636e\u7ebf\u6a21\u5f0f（\u521d\u5b66\u8005\u4f18\u5148 4 \u4f4d）
                            \n4. \u5173\u952e\u524d\u63d0：TF \u5361\u7684\u6700\u5c0f\u8bfb\u5199\u5355\u4f4d
                            \n\u4e8c\u3001STM32H743Z SDMMC \u63a5\u53e3\u6838\u5fc3\u539f\u7406
                            \n1. STM32H743Z \u7684 SDMMC \u5916\u8bbe\u7279\u6027（\u9488\u5bf9\u521d\u5b66\u8005，\u53ea<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[217,269,190],"topic":[],"class_list":["post-73035","post","type-post","status-publish","format-standard","hentry","category-server","tag-stm32","tag-269","tag-190"],"yoast_head":"\nSTM32H743Z+TF\u5361\u5b9e\u6218\uff1a4\u4f4dSDMMC\u9ad8\u901f\u5b58\u50a8\u6307\u5357 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/73035.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"STM32H743Z+TF\u5361\u5b9e\u6218\uff1a4\u4f4dSDMMC\u9ad8\u901f\u5b58\u50a8\u6307\u5357 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u76ee\u5f55 \u4e00\u3001\u6838\u5fc3\u6982\u5ff5\u5148\u7406\u6e05（\u521d\u5b66\u8005\u5fc5\u770b，\u907f\u514d\u672f\u8bed\u6df7\u6dc6） 1. 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