{"id":907,"date":"2023-02-23T14:11:45","date_gmt":"2023-02-23T06:11:45","guid":{"rendered":"http:\/\/www.huangrongzhen.ink\/?p=907"},"modified":"2023-03-04T19:51:45","modified_gmt":"2023-03-04T11:51:45","slug":"%e5%8d%95%e7%89%87%e6%9c%ba-gui-%e8%ae%be%e8%ae%a1%ef%bc%88%e5%8d%81%ef%bc%89-%e6%96%87%e4%bb%b6%e7%b3%bb%e7%bb%9f","status":"publish","type":"post","link":"https:\/\/www.huangrongzhen.ink\/?p=907","title":{"rendered":"\u5355\u7247\u673a GUI \u8bbe\u8ba1\uff08\u5341\uff09- \u6587\u4ef6\u7cfb\u7edf"},"content":{"rendered":"<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">\u57fa\u4e8e GD32F303ZET6 \u82f9\u679c\u6d3e\u5f00\u53d1\u677f <\/p><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%AE%80%E4%BB%8B\"><\/span>\u7b80\u4ecb<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5bf9\u4e8e\u7b80\u5355\u7684\u9879\u76ee\uff0c\u5982\u679c\u6d89\u53ca\u7684\u6587\u4ef6\u6570\u91cf\u4e0d\u662f\u5f88\u591a\uff0c\u90a3\u4e48\u53ef\u4ee5\u7b80\u5355\u7684\u5c06\u6587\u4ef6\u6309\u7167\u4e8c\u8fdb\u5236\u7684\u5f62\u5f0f\u56fa\u5316\u5230 Flash \u4e2d\u3002\u5bf9\u4e8e\u6587\u4ef6\u6570\u91cf\u5f88\u591a\uff0c\u6216\u8005\u6587\u4ef6\u5f88\u5927\u7684\u60c5\u51b5\u4e0b\uff0c\u8fd9\u4e2a\u65b9\u6cd5\u5f80\u5f80\u4e0d\u9002\u7528\u3002\u4f8b\u5982 24&#215;24 \u7684 GBK \u4e2d\u6587\u5b57\u5e93\uff0c\u5b83\u7684\u5927\u5c0f\u6709 1684KB\uff0c\u800c\u82f9\u679c\u6d3e\u4f7f\u7528\u7684\u4e3b\u63a7\uff0cGD32F303ZET6\uff0c\u5b83\u7684 Flash \u53ea\u6709 512KB\uff0c\u5b8c\u5168\u5b58\u4e0d\u4e0b\u3002\u7a0d\u5fae\u590d\u6742\u4e00\u70b9\u7684\u9879\u76ee\uff0c\u6d89\u53ca\u5230\u7684\u56fe\u7247\u53ef\u80fd\u6709\u51e0\u5341\u5f20\u751a\u81f3\u4e0a\u767e\u5f20\u3002<\/p>\n\n\n\n<p>\u6587\u4ef6\u7cfb\u7edf\u53ef\u4ee5\u642d\u914d SD \u5361\u3001NandFlash \u7b49\u5b58\u50a8\u4ecb\u8d28\u4f7f\u7528\u3002SD \u5361\u5f88\u4fbf\u5b9c\uff0c\u4e14\u5b58\u50a8\u7a7a\u95f4\u5f88\u5927\uff0c\u6587\u4ef6\u7cfb\u7edf\u7684\u5f15\u5165\u4f7f\u5f97\u5355\u7247\u673a\u53ef\u4ee5\u8f7b\u677e\u83b7\u53d6\u51e0\u5341\u4e2a G \u7684\u50a8\u5b58\u7a7a\u95f4\uff0c\u4e0d\u518d\u62c5\u5fc3\u50a8\u5b58\u7a7a\u95f4\u4e0d\u591f\u3002\u5bf9\u4e8e\u5355\u7247\u673a\u4e0b\u7684 GUI \u5f00\u53d1\uff0c\u6587\u4ef6\u7cfb\u7edf\u7684\u4f7f\u7528\u662f\u5fc5\u5907\u6280\u80fd\u3002<\/p>\n\n\n\n<p>\u6587\u4ef6\u7cfb\u7edf\u5e93\u6709\u5f88\u591a\uff0c\u5728\u8fd9\u91cc\u6211\u4eec\u9009\u62e9\u4e3b\u6d41\u3001\u901a\u7528\u7684 FatFS\u3002FatFS \u662f\u4e00\u4e2a\u5b8c\u5168\u7531 C \u8bed\u8a00\u5b9e\u73b0\u7684\u6587\u4ef6\u7cfb\u7edf\u5e93\uff0c\u517c\u5bb9 Fat32\u3001Fat16 \u7b49\u683c\u5f0f\u7684\u6587\u4ef6\u7cfb\u7edf\uff0c\u5177\u6709\u6587\u4ef6\u8bfb\u5199\u3001\u683c\u5f0f\u5316\u78c1\u76d8\u7b49\u529f\u80fd\u3002\u6211\u4eec\u65e5\u5e38\u751f\u6d3b\u4e2d\u4f7f\u7528\u7684 U \u76d8\u3001SD \u5361\u7b49\u50a8\u5b58\u8bbe\u5907\u5927\u591a\u5c5e\u4e8e Fat32 \u683c\u5f0f\uff0c\u5982\u4e0b\u6240\u793a\u3002\u4f7f\u7528 FatFS\uff0c\u6211\u4eec\u53ef\u4ee5\u5f88\u8f7b\u677e\u7684\u8bbf\u95ee SD \u5361\u4e2d\u7684\u6587\u4ef6\u3002\u56e0\u4e3a\u662f\u7528 C \u8bed\u8a00\u5199\u7684\uff0cFatFS \u62e5\u6709\u6781\u9ad8\u7684\u517c\u5bb9\u6027\uff0c\u53ef\u4ee5\u5f88\u65b9\u4fbf\u7684\u79fb\u690d\u5230\u5404\u4e2a\u5e73\u53f0\u3002\u5f53\u7136\uff0c\u8bfb\u8005\u4e5f\u53ef\u4ee5\u9009\u7528\u5176\u5b83\u7684\u6587\u4ef6\u7cfb\u7edf\u5e93\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"421\" height=\"615\" src=\"http:\/\/www.huangrongzhen.ink\/wp-content\/uploads\/2023\/02\/U-\u76d8\u6587\u4ef6\u7cfb\u7edf\u683c\u5f0f-20230223.bmp\" alt=\"\" class=\"wp-image-909\"\/><\/figure><\/div>\n\n\n<p>\u5bf9\u4e8e\u6587\u4ef6\u7cfb\u7edf\u7684\u79fb\u690d\u3001SD \u5361\u5e95\u5c42\u9a71\u52a8\uff0c\u8bfb\u8005\u53ef\u4ee5\u53c2\u8003 GD32F303 \u8fdb\u9636\u7248\u6559\u6750\uff0c\u518d\u6b21\u4e0d\u8fc7\u591a\u4ecb\u7ecd\u3002\u672c\u7cfb\u5217\u63d0\u4f9b\u7684\u5de5\u7a0b\u4e2d\u5df2\u7ecf\u505a\u597d\u4e86\u79fb\u690d\uff0c\u8bfb\u8005\u53ea\u9700\u8981\u77e5\u9053\u8be5\u600e\u4e48\u7528\u5c31\u884c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%9F%AD%E6%96%87%E4%BB%B6%E5%90%8D%E5%92%8C%E9%95%BF%E6%96%87%E4%BB%B6%E5%90%8D\"><\/span>\u77ed\u6587\u4ef6\u540d\u548c\u957f\u6587\u4ef6\u540d<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u6587\u4ef6\u7cfb\u7edf\u7684\u4f7f\u7528\u4e2d\uff0c\u6709\u4e2a\u5f88\u91cd\u8981\u7684\u6982\u5ff5\u662f\u77ed\u6587\u4ef6\u540d\u548c\u957f\u6587\u4ef6\u540d\u3002\u77ed\u6587\u4ef6\u540d\u4e0b\uff0c\u6587\u4ef6\u540d\u6700\u5927\u957f\u5ea6\u662f 7 \u4e2a\u5b57\u8282\uff0c\u540e\u7f00\u6700\u957f\u662f 3 \u4e2a\u5b57\u8282\uff0c\u957f\u6587\u4ef6\u540d\u4e0b\u5219\u6ca1\u6709\u9650\u5236\u3002\u5bf9\u4e8e FatFS\uff0c\u9ed8\u8ba4\u53ea\u652f\u6301\u77ed\u6587\u4ef6\u540d\uff0c\u4f46\u662f\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539\u914d\u7f6e\u6587\u4ef6\u5b9e\u73b0\u652f\u6301\u957f\u6587\u4ef6\u540d\u3002<\/p>\n\n\n\n<p>\u4e00\u65e6\u4f7f\u80fd\u4e86\u957f\u6587\u4ef6\u540d\uff0c\u56e0\u4e3a\u8981\u505a Unicode \u8f6c GBK\uff0cFatFS \u4f1a\u5c06\u4e00\u4e2a\u8d85\u8fc7 100KB \u8f6c\u6362\u8868\u4fdd\u5b58\u5230\u5355\u7247\u673a\u7684 Flash \u4e2d\uff0c\u8fd9\u5c31\u5bfc\u81f4\u4e86\u7f16\u8bd1\u51fa\u6765\u7684\u7a0b\u5e8f\u5f88\u5927\uff0c\u5355\u7247\u673a\u70e7\u5199\u901f\u5ea6\u660e\u663e\u53d8\u6162\u3002\u5f53\u7136\uff0c\u540e\u8fb9\u6211\u4eec\u4f1a\u4ecb\u7ecd\u5982\u4f55\u5bfc\u51fa\u8fd9\u5f20\u8868\u5230\u6587\u4ef6\u4e2d\uff0c\u7528\u6587\u4ef6\u7cfb\u7edf\u5b58\u50a8\u8fd9\u5f20\u8868\u3002\u672c\u6587\u4e2d\u79fb\u690d\u597d\u7684 FatFS \u9ed8\u8ba4\u5f00\u542f\u4e86\u957f\u6587\u4ef6\u540d\uff0c\u8bfb\u8005\u53ef\u89c6\u60c5\u51b5\u5173\u95ed\u4f7f\u80fd\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%9B%98%E7%AC%A6\"><\/span>\u76d8\u7b26<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5bf9\u4e8e\u672c\u6587\u4e2d\u4f7f\u7528\u7684\u6587\u4ef6\u7cfb\u7edf\uff0cSD \u5361\u7684\u76d8\u7b26\u662f &#8220;0:&#8221;\uff0cNandFlash \u7684\u76d8\u7b26\u662f &#8220;1:&#8221;\uff0cUSB\uff0c\u5373 U \u76d8\u7684\u76d8\u7b26\u662f &#8220;2:&#8221; \u3002\u5982\u679c\u6211\u4eec\u8981\u8bbf\u95ee SD \u5361\u6839\u76ee\u5f55\u4e0b BMP \u6587\u4ef6\u5939\u4e2d\u7684 background.bmp \u6587\u4ef6\uff0c\u90a3\u4e48\u8be5\u6587\u4ef6\u7684\u8def\u5f84\u662f &#8220;0:\/BMP\/background.bmp&#8221; \u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%8C%82%E8%BD%BD%E6%96%87%E4%BB%B6%E7%B3%BB%E7%BB%9F%E7%A4%BA%E4%BE%8B\"><\/span>\u6302\u8f7d\u6587\u4ef6\u7cfb\u7edf\u793a\u4f8b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>FatFS \u4e2d\uff0c\u6302\u8f7d SD \u5361\u7684\u793a\u4f8b\u5982\u4e0b\uff0c\u5982\u679c\u9700\u8981\u6302\u8f7d NandFlash \u6216 U \u76d8\uff0c\u53ea\u9700\u8981\u5c06 FS_VOLUME_SD \u4fee\u6539\u6210 FS_VOLUME_NAND \u6216 FS_VOLUME_USB\u5373\u53ef\u3002\u6ce8\u610f\uff1aFATFS \u7c7b\u578b\u7684\u53d8\u91cf\u9700\u8981\u8bbe\u7f6e\u6210\u9759\u6001\u53d8\u91cf\u3002\u5982\u679c\u9700\u8981\u5378\u8f7d\u6587\u4ef6\u7cfb\u7edf\uff0c\u53ea\u9700\u8981\u5c06\u7b2c\u4e00\u4e2a\u53c2\u6570\u8bbe\u4e3a NULL \u5373\u53ef\u3002\u53e6\u5916\uff0c\u672c\u7cfb\u5217\u63d0\u4f9b\u7684\u6e90\u7801\u4e2d\u5e76\u672a\u5305\u542b\u8bfb\u5199 U \u76d8\u76f8\u5173\u9a71\u52a8\uff0c\u6240\u4ee5\u5e76\u4e0d\u80fd\u6302\u8f7d U \u76d8\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"c\" class=\"language-c\">static FATFS s_structFatFS;\nFRESULT result;\nresult = f_mount(&amp;s_structFatFS, FS_VOLUME_SD, 1);\nif(FR_OK != result)\n{\n    printf(\"MountSDCard: Mount SD card fail!!!\\r\\n\");\n}\nelse\n{\n  printf(\"MountSDCard: Mount SD card success\\r\\n\");\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%AF%BB%E5%8F%96%E6%96%87%E4%BB%B6%E7%A4%BA%E4%BE%8B\"><\/span>\u8bfb\u53d6\u6587\u4ef6\u793a\u4f8b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>FatFS \u4e2d\uff0c\u8bfb\u53d6\u6587\u4ef6\u793a\u4f8b\u5982\u4e0b\u3002\u53c2\u6570 readPos \u5373\u4e3a\u9700\u8981\u8bfb\u53d6\u7684\u8282\u70b9\u4e0e\u6587\u4ef6\u5f00\u5934\u7684\u504f\u79fb\u91cf\uff0c\u5355\u4f4d\u662f\u5b57\u8282\u3002\u5728 FatFS \u4e2d\uff0c\u8bbe\u7f6e\u504f\u79fb\u91cf\u65f6\u5c3d\u91cf 4 \u5b57\u8282\u5bf9\u9f50\uff0c\u5426\u5219\u5f88\u5bb9\u6613\u9020\u6210\u5361\u6b7b\u3002\u53c2\u6570 len \u5373\u4e3a\u9700\u8981\u8bfb\u53d6\u7684\u6570\u636e\u91cf\uff0c\u5355\u4f4d\u901a\u5e38\u662f\u5b57\u8282\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"c\" class=\"language-c\">unsigned int ReadFile(const char* fileName, unsigned int readPos, void* readBuf, unsigned int len)\n{\n  static FIL s_structFile\n  FRESULT result;\n  unsigned int readNum;\n\n  \/\/\u6253\u5f00\u6587\u4ef6\n  result = f_open(&amp;s_structFile, (const TCHAR*)fileName, FA_READ);\n  if(FR_OK != result)\n  {\n    printf(\"ReadFile: fail to open file %s\\r\\n\", fileName);\n    return 0;\n  }\n\n  \/\/\u8bbe\u7f6e\u6587\u4ef6\u8bfb\u53d6\u4f4d\u7f6e\n  result = f_lseek(&amp;s_structFile, readPos);\n  if(FR_OK != result)\n  {\n    printf(\"ReadFile: fail to set pos to file %s\\r\\n\", fileName);\n    return 0;\n  }\n\n  \/\/\u8bfb\u53d6\u6570\u636e\n  result = f_read(&amp;s_structFile, readBuf, len, &amp;readNum);\n  if(FR_OK != result)\n  {\n    printf(\"ReadFile: fail to read data from file %s\\r\\n\", fileName);\n    return 0;\n  }\n\n  \/\/\u5173\u95ed\u6587\u4ef6\n  f_close(&amp;s_structFile);\n\n  \/\/\u8fd4\u56de\u5b9e\u9645\u8bfb\u5230\u7684\u6570\u636e\u91cf\n  return readNum;\n} <\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%86%99%E5%85%A5%E6%96%87%E4%BB%B6\"><\/span>\u5199\u5165\u6587\u4ef6<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>FatFS \u4e0d\u4ec5\u53ef\u4ee5\u8bfb\u53d6\u6587\u4ef6\u6570\u636e\uff0c\u4e5f\u80fd\u521b\u5efa\uff0c\u5e76\u5199\u5165\u6587\u4ef6\u3002FatFS \u521b\u5efa\u7684\u6587\u4ef6\u5728\u7535\u8111\u7aef\u4e5f\u80fd\u88ab\u8bfb\u53d6\u3002\u53c2\u6570 len \u5373\u4e3a\u9700\u8981\u5199\u5165\u7684\u6570\u636e\u91cf\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\u3002\u6ce8\u610f\uff1a\u5199\u5165\u6570\u636e\u540e\uff0c\u5fc5\u987b\u8981\u8c03\u7528 f_close \u51fd\u6570\u5173\u95ed\u6587\u4ef6\uff0c\u8be5\u6587\u4ef6\u624d\u4f1a\u88ab\u771f\u6b63\u4fdd\u5b58\u5230\u6587\u4ef6\u7cfb\u7edf\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"c\" class=\"language-c\">unsigned int WriteFile(const char* fileName, void* writeBuf, unsigned int len)\n{\n  static FIL s_structFile\n  FRESULT result;\n  unsigned int writeNum;\n\n  \/\/\u521b\u5efa\u6587\u4ef6\uff0c\u5982\u679c\u8be5\u6587\u4ef6\u5df2\u7ecf\u5b58\u5728\uff0c\u90a3\u4e48\u5c31\u8986\u76d6\u8be5\u6587\u4ef6\n  result = f_open(&amp;s_structFile, (const TCHAR*)fileName, FA_CREATE_ALWAYS | FA_WRITE);\n  if(FR_OK != result)\n  {\n    printf(\"WriteFile: fail to create file %s\\r\\n\", fileName);\n    return 0;\n  }\n\n  \/\/\u5199\u5165\u6570\u636e\n  result = f_write(&amp;s_structFile, writeBuf, len, &amp;writeNum);\n  if(FR_OK != result)\n  {\n    printf(\"WriteFile: fail to write data to file %s\\r\\n\", fileName);\n    return 0;\n  }\n\n  \/\/\u4fdd\u5b58\n  f_close(&amp;s_structFile);\n\n  \/\/\u8fd4\u56de\u5b9e\u9645\u5199\u5165\u7684\u6570\u636e\u91cf\n  return writeNum;\n} <\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%AE%8C%E5%96%84_BMP_%E9%A9%B1%E5%8A%A8\"><\/span>\u5b8c\u5584 BMP \u9a71\u52a8<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5bf9\u4e8e JPEG \u548c PNG \u56fe\u7247\uff0c\u56e0\u4e3a\u5b83\u4eec\u672c\u8eab\u5c31\u662f\u538b\u7f29\u8fc7\u7684\uff0c\u6587\u4ef6\u6bd4\u8f83\u5c0f\uff0c\u6240\u4ee5\u663e\u793a\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7684 JPEG \u548c PNG \u56fe\u7247\u65f6\uff0c\u53ef\u4ee5\u76f4\u63a5\u5c06\u6574\u4e2a\u6587\u4ef6\u8bfb\u5165\u5185\u5b58\u4e2d\uff0c\u7136\u540e\u8c03\u7528\u4ee5\u524d\u5199\u7684\u7ed8\u5236\u51fd\u6570\u7ed8\u5236\u56fe\u7247\u3002\u5bf9\u4e8e ARM \u67b6\u6784\u7684\u82af\u7247\uff0cFlash \u548c SRAM \u7684\u5730\u5740\u662f\u7edf\u4e00\u5206\u914d\u7684\uff0c\u6ca1\u6709\u5730\u5740\u91cd\u53e0\u7684\u90e8\u5206\uff0c\u8fd9\u4e00\u70b9\u4e0e 51 \u5355\u7247\u673a\u533a\u522b\u5f88\u5927\u3002<\/p>\n\n\n\n<p>BMP\uff0c\u5373\u4f4d\u56fe\u6587\u4ef6\uff0c\u662f\u672a\u7ecf\u538b\u7f29\u8fc7\u7684\u3002\u5047\u8bbe\u5c4f\u5e55\u5c3a\u5bf8\u4e3a 800&#215;480\uff0c\u73b0\u5728\u8981\u7528\u4e00\u5f20 BMP \u56fe\u7247\u6765\u505a\u4e3a\u80cc\u666f\u56fe\u7247\u3002\u5982\u679c\u8be5\u56fe\u7247\u662f ARGB8888 \u683c\u5f0f\u7684\uff0c\u90a3\u4e48\u603b\u5171\u5360\u636e\u7684\u5185\u5b58\u7a7a\u95f4\u5927\u5c0f\u4e3a  800x480x4=1536000B\uff0c\u5373 1.5MB \u5de6\u53f3\u3002\u7136\u800c\u82f9\u679c\u6d3e\u5f00\u53d1\u677f\u5916\u62d3\u7684 SRAM \u624d 1MB\uff0c\u518d\u52a0\u4e0a\u5185\u90e8 SRAM \u7684 64KB\uff0c\u4e5f\u5b58\u4e0d\u4e0b\u4e00\u6574\u5f20\u56fe\u7247\u3002\u4e3a\u4e86\u663e\u793a\u8fd9\u5f20\u4f4d\u56fe\uff0c\u6211\u4eec\u53ea\u80fd\u662f\u4fee\u6539 BMP \u9a71\u52a8\uff0c\u6309\u884c\u8bfb\u5165 BMP \u56fe\u7247\u6570\u636e\u5e76\u663e\u793a\u3002\u56e0\u4e3a\u4e00\u6b21\u53ea\u9700\u8981\u8bfb\u4e00\u884c\uff0c\u6240\u4ee5\u5185\u5b58\u662f\u591f\u7528\u7684\u3002<\/p>\n\n\n\n<p>\u5f53\u7136\uff0c\u505a\u4e3a\u80cc\u666f\u56fe\u7247\uff0c\u56e0\u4e3a\u672c\u8eab\u5c31\u4e0d\u9700\u8981\u900f\u660e\u5ea6\u4fe1\u606f\uff0c\u6240\u4ee5\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528 RGB888  \u683c\u5f0f\u7684 BMP \u56fe\u7247\uff0c\u8fd9\u6837\u7684\u8bdd\u80cc\u666f\u56fe\u7247\u53ea\u5360\u636e 800x480x3=1152000B\uff0c\u4e5f\u5c31\u662f 1.1MB \u5b58\u50a8\u7a7a\u95f4\uff0c\u4e00\u4e0b\u5b50\u5c31\u7f29\u5c0f\u4e86\u56db\u5206\u4e4b\u4e00\u3002\u5982\u679c LCD \u9a71\u52a8\u4f7f\u7528\u7684\u662f RGB565 \u50cf\u7d20\u70b9\u683c\u5f0f\uff0c\u90a3\u4e48\u80cc\u666f\u56fe\u7247\u8fd8\u53ef\u4ee5\u8fdb\u4e00\u6b65\u7f29\u5c0f\uff0c\u76f4\u63a5\u4f7f\u7528 RGB565 \u683c\u5f0f\uff0c\u8fd9\u6837\u53ea\u9700\u8981\u5360\u636e 800x480x2=768000B\uff0c\u5373 768KB \u5185\u5b58\u7a7a\u95f4\uff0c\u76f4\u63a5\u5c06\u6574\u5f20\u80cc\u666f\u56fe\u7247\u8bfb\u5165\u5916\u62d3 SRAM \u4e5f\u4e0d\u662f\u4e0d\u884c\u3002\u56fe\u7247\u5360\u636e\u7684\u5b58\u50a8\u7a7a\u95f4\u8d8a\u5c0f\uff0cFatFS \u8bfb\u53d6\u6587\u4ef6\u7684\u901f\u5ea6\u5c31\u8d8a\u5feb\uff0c\u5237\u56fe\u7684\u901f\u5ea6\u4e5f\u968f\u4e4b\u52a0\u5feb\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u9a71\u52a8\u7684\u901a\u7528\u6027\uff0c\u6211\u4eec\u8fd8\u662f\u9700\u8981\u4fee\u6539\u4e00\u4e0b BMP \u7684\u5e95\u5c42\u9a71\u52a8\uff0c\u6dfb\u52a0\u4e00\u4e2a\u663e\u793a\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7684 BMP \u56fe\u7247\u51fd\u6570\uff0c\u5982\u4e0b\u6240\u793a\u3002DrawBMPInFatFS \u51fd\u6570\u6309\u884c\u8bfb\u5165 BMP \u56fe\u7247\u7684\u50cf\u7d20\u70b9\u4fe1\u606f\uff0c\u7136\u540e\u66f4\u65b0\u5230\u5c4f\u5e55\u663e\u793a\u3002<\/p>\n\n\n\n<p> ForceReadByNameWithCopy \u51fd\u6570\u7528\u4e8e\u5f3a\u5236\u4ece\u6587\u4ef6\u7cfb\u7edf\u4e2d\u8bfb\u53d6\u6570\u636e\u3002\u56e0\u4e3a SD \u5361\u4e0d\u662f\u710a\u6b7b\u5728\u7535\u8def\u677f\u4e0a\u7684\uff0c\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u968f\u65f6\u6709\u53ef\u80fd\u4f1a\u8131\u843d\uff0cForceReadByNameWithCopy \u51fd\u6570\u4f1a\u5728\u8bfb\u53d6\u5931\u8d25\u540e\uff0c\u91cd\u65b0\u6302\u8f7d\u6587\u4ef6\u7cfb\u7edf\uff0c\u7136\u540e\u518d\u6253\u5f00\u6587\u4ef6\uff0c\u518d\u6b21\u5c1d\u8bd5\u8bfb\u53d6\uff0c\u76f4\u81f3\u6700\u7ec8\u8bfb\u53d6\u6210\u529f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"c\" class=\"language-c\">void DrawBMPInFatFS(const char* img, int x, int y)\n{\n  StructBmpFileHeader* fileHeader; \/\/\u6587\u4ef6\u5934\n  StructBmpInfoHeader* infoHeader; \/\/\u4fe1\u606f\u5934\n  int x0, y0, x1, y1, width, height;\n  unsigned int a, r, g, b;\n  unsigned short color, backgroung;\n  unsigned char* fileHeadBuf;\n  unsigned char* readBuf;\n  unsigned int readSize;\n  unsigned int lineCnt;\n  unsigned int readCnt;\n  \n  \/\/\u7edf\u8ba1\u6587\u4ef6\u5934\u548c\u4fe1\u606f\u5934\u7684\u5927\u5c0f\u603b\u548c\n  readSize = sizeof(StructBmpFileHeader) + sizeof(StructBmpInfoHeader);\n  \n  \/\/\u4e3a\u8bfb\u53d6\u7f13\u51b2\u533a\u7533\u8bf7\u52a8\u6001\u5185\u5b58\n  fileHeadBuf = MyMalloc(SRAMIN, readSize);\n  if(NULL == fileHeadBuf)\n  {\n    printf(\"DrawBMPInFatFS: Fail to malloc for BMP file head\\r\\n\");\n    while(1){}\n  }\n  \n  \/\/\u8bfb\u53d6\u6587\u4ef6\u5934\u548c\u4fe1\u606f\u5934\n  ForceReadByNameWithCopy(0, fileHeadBuf, readSize, (void*)img);\n\n  \/\/\u83b7\u53d6\u56fe\u7247\u5bbd\u5ea6\u548c\u9ad8\u5ea6\n  infoHeader = (StructBmpInfoHeader*)(fileHeadBuf + 14);\n  width = infoHeader-&gt;width;\n  height = infoHeader-&gt;height;\n\n  \/\/\u8ba1\u7b97\u8d77\u70b9\u548c\u7ec8\u70b9\n  x0 = x;\n  y0 = y;\n  x1 = x0 + width - 1;\n  y1 = y0 + height - 1;\n\n  \/\/\u83b7\u53d6\u4fe1\u606f\u5934\n  fileHeader = (StructBmpFileHeader*)fileHeadBuf;\n  \n  \/\/16 \u4f4d\u4f4d\u56fe\u89e3\u7801\n  if(16 == infoHeader-&gt;colorSize)\n  {\n    \/\/\u8ba1\u7b97\u4e00\u884c\u7684\u6570\u636e\u91cf\n    readSize = 2 * width;\n    while(0 != (readSize % 4)){readSize++;}\n    \n    \/\/\u4e3a\u8bfb\u53d6\u7f13\u51b2\u533a\u7533\u8bf7\u52a8\u6001\u5185\u5b58\n    readBuf = MyMalloc(SRAMIN, readSize);\n    if(NULL == readBuf)\n    {\n      printf(\"DrawBMPInFatFS: Fail to malloc for read buf\\r\\n\");\n      while(1){}\n    }\n    \n    \/\/\u884c\u8ba1\u6570\u6e05\u96f6\n    lineCnt = 0;\n    \n    \/\/\u6309\u884c\u663e\u793a\n    for(y = y1; y &gt;= y0; y--)\n    {\n      \/\/\u8bfb\u53d6\u4e00\u6574\u884c\u6570\u636e\n      ForceReadByNameWithCopy(fileHeader-&gt;offBits + lineCnt * readSize, readBuf, readSize, (void*)img);\n      \n      \/\/\u8bfb\u53d6\u8ba1\u6570\u6e05\u96f6\n      readCnt = 0;\n      \n      \/\/\u4e00\u4e2a\u4e00\u4e2a\u50cf\u7d20\u70b9\u663e\u793a\n      for(x = x0; x &lt;= x1; x++)\n      {\n        \/\/\u83b7\u53d6\u50cf\u7d20\u70b9\u6570\u636e\n        color = (readBuf[readCnt + 1] &lt;&lt; 8) | readBuf[readCnt + 0];\n        \n        \/\/\u66f4\u65b0\u8ba1\u6570\n        readCnt = readCnt + 2;\n\n        \/\/\u6ca1\u6709\u900f\u660e\u5ea6\u4fe1\u606f\uff0c\u76f4\u63a5\u8986\u76d6\u663e\u793a\n        LCDFastDrawPoint(x, y, color);\n      }\n      \n      \/\/\u884c\u8ba1\u6570\u52a0\u4e00\n      lineCnt++;\n    }\n  }\n  \n  \/\/24 \u4f4d\u4f4d\u56fe\u89e3\u7801\n  else if(24 == infoHeader-&gt;colorSize)\n  {\n    \/\/\u8ba1\u7b97\u4e00\u884c\u7684\u6570\u636e\u91cf\n    readSize = 3 * width;\n    while(0 != (readSize % 4)){readSize++;}\n    \n    \/\/\u4e3a\u8bfb\u53d6\u7f13\u51b2\u533a\u7533\u8bf7\u52a8\u6001\u5185\u5b58\n    readBuf = MyMalloc(SRAMIN, readSize);\n    if(NULL == readBuf)\n    {\n      printf(\"DrawBMPInFatFS: Fail to malloc for read buf\\r\\n\");\n      while(1){}\n    }\n    \n    \/\/\u884c\u8ba1\u6570\u6e05\u96f6\n    lineCnt = 0;\n    \n    \/\/\u6309\u884c\u663e\u793a\n    for(y = y1; y &gt;= y0; y--)\n    {\n      \/\/\u8bfb\u53d6\u4e00\u6574\u884c\u6570\u636e\n      ForceReadByNameWithCopy(fileHeader-&gt;offBits + lineCnt * readSize, readBuf, readSize, (void*)img);\n      \n      \/\/\u8bfb\u53d6\u8ba1\u6570\u6e05\u96f6\n      readCnt = 0;\n      \n      \/\/\u4e00\u4e2a\u4e00\u4e2a\u50cf\u7d20\u70b9\u663e\u793a\n      for(x = x0; x &lt;= x1; x++)\n      {\n        \/\/\u83b7\u53d6\u50cf\u7d20\u70b9\u6570\u636e\uff0c\u53f3\u79fb\u662f\u4e3a\u4e86\u65b9\u4fbf\u540e\u7eed\u8f6c\u6210 RGB565 \u683c\u5f0f\n        b = readBuf[readCnt++] &gt;&gt; 3; \/\/\u84dd\u8272\n        g = readBuf[readCnt++] &gt;&gt; 2; \/\/\u7eff\u8272\n        r = readBuf[readCnt++] &gt;&gt; 3; \/\/\u7ea2\u8272\n\n        \/\/RGB888 \u8f6c RGB565\n        color = ((r &lt;&lt; 11) | (g &lt;&lt; 5) | (b &lt;&lt; 0));\n\n        \/\/\u6ca1\u6709\u900f\u660e\u5ea6\u4fe1\u606f\uff0c\u76f4\u63a5\u8986\u76d6\u663e\u793a\n        LCDFastDrawPoint(x, y, color);\n      }\n      \n      \/\/\u884c\u8ba1\u6570\u52a0\u4e00\n      lineCnt++;\n    }\n  }\n\n  \/\/32 \u4f4d\u4f4d\u56fe\u89e3\u7801\n  else if(32 == infoHeader-&gt;colorSize)\n  {\n    \/\/\u8ba1\u7b97\u4e00\u884c\u7684\u6570\u636e\u91cf\n    readSize = 4 * width;\n\n    \/\/\u4e3a\u8bfb\u53d6\u7f13\u51b2\u533a\u7533\u8bf7\u52a8\u6001\u5185\u5b58\n    readBuf = MyMalloc(SRAMIN, readSize);\n    if(NULL == readBuf)\n    {\n      printf(\"DrawBMPInFatFS: Fail to malloc for read buf\\r\\n\");\n      while(1){}\n    }\n    \n    \/\/\u884c\u8ba1\u6570\u6e05\u96f6\n    lineCnt = 0;\n    \n    \/\/\u6309\u884c\u663e\u793a\n    for(y = y1; y &gt;= y0; y--)\n    {\n      \/\/\u8bfb\u53d6\u4e00\u6574\u884c\u6570\u636e\n      ForceReadByNameWithCopy(fileHeader-&gt;offBits + lineCnt * readSize, readBuf, readSize, (void*)img);\n      \n      \/\/\u8bfb\u53d6\u8ba1\u6570\u6e05\u96f6\n      readCnt = 0;\n      \n      \/\/\u4e00\u4e2a\u4e00\u4e2a\u50cf\u7d20\u70b9\u663e\u793a\n      for(x = x0; x &lt;= x1; x++)\n      {\n        \/\/\u83b7\u53d6\u50cf\u7d20\u70b9\u6570\u636e\n        b = readBuf[readCnt++]; \/\/\u84dd\u8272\n        g = readBuf[readCnt++]; \/\/\u7eff\u8272\n        r = readBuf[readCnt++]; \/\/\u7ea2\u8272\n        a = readBuf[readCnt++]; \/\/\u900f\u660e\u5ea6\n\n        \/\/\u8bfb\u53d6\u80cc\u666f\u989c\u8272\n        backgroung = LCDReadPoint(x, y);\n\n        \/\/\u900f\u660e\u5ea6\u53e0\u52a0\n        color = CalcAlphaRGB565(backgroung, r, g, b, a);\n\n        \/\/\u663e\u793a\n        LCDFastDrawPoint(x, y, color);\n      }\n      \n      \/\/\u884c\u8ba1\u6570\u52a0\u4e00\n      lineCnt++;\n    }\n  }\n  \n  \/\/\u91ca\u653e\u5185\u5b58\n  MyFree(fileHeadBuf);\n  MyFree(readBuf);\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%AE%9E%E9%AA%8C%E7%BB%93%E6%9E%9C\"><\/span>\u5b9e\u9a8c\u7ed3\u679c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5b9e\u9a8c\u7ed3\u679c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"768\" src=\"http:\/\/www.huangrongzhen.ink\/wp-content\/uploads\/2023\/03\/\u5355\u7247\u673a-GUI-\u8bbe\u8ba1\uff08\u5341\uff09-\u6587\u4ef6\u7cfb\u7edf-\u5b9e\u9a8c\u7ed3\u679c-20230304-1024x768.jpg\" alt=\"\" class=\"wp-image-1110\" srcset=\"https:\/\/www.huangrongzhen.ink\/wp-content\/uploads\/2023\/03\/\u5355\u7247\u673a-GUI-\u8bbe\u8ba1\uff08\u5341\uff09-\u6587\u4ef6\u7cfb\u7edf-\u5b9e\u9a8c\u7ed3\u679c-20230304-1024x768.jpg 1024w, https:\/\/www.huangrongzhen.ink\/wp-content\/uploads\/2023\/03\/\u5355\u7247\u673a-GUI-\u8bbe\u8ba1\uff08\u5341\uff09-\u6587\u4ef6\u7cfb\u7edf-\u5b9e\u9a8c\u7ed3\u679c-20230304-300x225.jpg 300w, https:\/\/www.huangrongzhen.ink\/wp-content\/uploads\/2023\/03\/\u5355\u7247\u673a-GUI-\u8bbe\u8ba1\uff08\u5341\uff09-\u6587\u4ef6\u7cfb\u7edf-\u5b9e\u9a8c\u7ed3\u679c-20230304-768x576.jpg 768w, 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