{"id":298,"date":"2024-03-21T10:35:28","date_gmt":"2024-03-21T02:35:28","guid":{"rendered":"https:\/\/www.yanwenkai.com\/?p=298"},"modified":"2024-09-11T15:56:57","modified_gmt":"2024-09-11T07:56:57","slug":"lcd%e8%a7%a6%e6%8e%a7%e5%b1%8f%e7%a7%bb%e6%a4%8d%e4%b9%8b%e7%a1%ac%e4%bb%b6%e7%af%87","status":"publish","type":"post","link":"https:\/\/www.yanwenkai.com\/?p=298","title":{"rendered":"LCD\u89e6\u63a7\u5c4f\u79fb\u690d\u4e4b\u786c\u4ef6\u7bc7"},"content":{"rendered":"

1 \u524d\u8a00<\/h1>\n

  \u6700\u8fd1\u7ec8\u4e8e\u6253\u901a\u4e86\u4ece\u5e94\u7528\u5c42\u5230\u9a71\u52a8\u518d\u5230\u786c\u4ef6\u5f97\u6574\u4e2a\u6d41\u7a0b\uff0c\u628a\u89e6\u6478\u5c4f\u70b9\u4eae\u4e86\u3002\u56de\u5934\u770b\u53d1\u73b0\u62d6\u4e86\u597d\u4e45\u5f97\u65f6\u95f4\uff0c\u4e4b\u6240\u4ee5\u62d6\u8fd9\u4e48\u4e45\u4e5f\u662f\u5f3a\u8feb\u75c7\u72af\u4e86\uff0c\u60f3\u7cbe\u76ca\u6c42\u7cbe\u5bfc\u81f4\u5730\u3002
\n  \u5206\u6790\u5b98\u65b9\u4f8b\u7a0b\u53ef\u4ee5\u770b\u51fa\uff0c\u9879\u76ee\u7684\u4f18\u70b9\u662f\u89e6\u6478\u6a21\u5757\u548clcd\u6a21\u5757\u5171\u7528\u540c\u4e00\u4e2a\u7b80\u5355\u7684spi\u9a71\u52a8\u7a0b\u5e8f\uff0c\u9664\u6b64\u4e4b\u5916\u6574\u4e2a\u5c31\u5f88\u666e\u901a\u3002\u60f3\u8981\u4f18\u5316\u9879\u76ee\u9996\u5148\u628alcd\u7684\u9a71\u52a8\u66ff\u6362\u6210framebuffer\u9a71\u52a8\uff0c\u589e\u52a0\u5c4f\u5e55\u7684\u5237\u65b0\u7387\uff1b\u5176\u6b21\u539f\u6765\u7684\u9879\u76ee\u624b\u7ed8\u51e0\u4e2a\u754c\u9762\u592a\u4f4e\u7aef\u4e86\uff0c\u79fb\u690d\u4e00\u4e2alvgl\uff0c\u8fd9\u6837\u8dd1\u81ea\u5df1\u7684\u7a0b\u5e8f\u66f4\u7b80\u5355\u9ad8\u6548\uff1b\u6700\u540e\u89e6\u6478\u6a21\u5757\u4e5f\u8981\u66ff\u6362\u6210input\u5b50\u7cfb\u7edf\u7684\u9a71\u52a8\uff0c\u66f4\u597d\u7684\u5bf9\u63a5lvgl\u3002
\n  \u867d\u7136\u6700\u7ec8\u82b1\u8d39\u4e86\u70b9\u65f6\u95f4\uff0c\u4f46\u4e0a\u8ff0\u76ee\u6807\u90fd\u5df2\u7ecf\u5b9e\u73b0\u4e86\uff01\u4e0b\u9762\u662f\u5404\u4e2a\u6a21\u5757\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u7684\u63a5\u7ebf\u60c5\u51b5\u4ee5\u53ca\u9047\u5230\u7684\u786c\u4ef6\u95ee\u9898\u53ca\u89e3\u6cd5\u3002<\/p>\n

2 \u786c\u4ef6\u53c2\u6570\u4fe1\u606f\u53ca\u63a5\u7ebf<\/h1>\n

  \u5982\u4e0b\u662f\u5c4f\u5e55\u7684\u5c3a\u5bf8\u53c2\u6570\u4fe1\u606f\uff1a<\/p>\n

\u5de5\u4f5c\u7535\u538b    5V  \u5206\u8fa8\u7387 480 \u00d7 320 Pixels\n\u901a\u4fe1\u63a5\u53e3    SPI \u663e\u793a\u5c3a\u5bf8    73.44 \u00d7 48.96 mm\n\u663e\u793a\u9762\u677f    IPS \u50cf\u7d20\u5927\u5c0f    0.153 \u00d7 0.153 mm\n\u63a7\u5236\u82af\u7247    ILI9488 \u4ea7\u54c1\u5c3a\u5bf8    86.00 \u00d7 57.20 mm<\/code><\/pre>\n
  \u5f00\u53d1\u677f\u5f15\u811a\u529f\u80fd\u56fe\uff08\u5177\u4f53\u5f15\u811a\u7f16\u53f7\u7684\u8ba1\u7b97\u4f5c\u7528\u67e5\u770b\u6211\u8fd9\u4e2a\u6587\u7ae0<\/a>\uff09\uff1a<\/p>\n

\n
<\/div>
\n<\/center><\/p>\n
  \u5c4f\u5e55\u5f15\u811a\u4e0e\u5f00\u53d1\u677f\u5f15\u811a\u63a5\u7ebf\u56fe\uff1a<\/p>\n

\n
<\/div>
\n<\/center><\/p>\n
  \u5c4f\u5e55\u5f15\u811a\u529f\u80fd\u56fe\uff1a<\/p>\n

\n
<\/div>
\n<\/center><\/p>\n
  \u5982\u4e0a\u5c31\u662f\u5c4f\u5e55\u5bf9\u5e94\u5f00\u53d1\u677f\u7684\u63a5\u7ebf\u60c5\u51b5\uff0c\u6e05\u695a\u7684\u6807\u6ce8\u4e86\u6bcf\u4e2a\u5f15\u811a\u7684\u5177\u4f53\u529f\u80fd\u3002\u5728\u540e\u9762\u9002\u914d\u89e6\u6478\u9a71\u52a8\u65f6\uff0c\u53d1\u73b0\u4e86\u5c4f\u5e55\u7684\u4e00\u4e2a\u7f3a\u70b9\uff0c\u56e0\u4e3alcd\u5c4f\u5e55\u548c\u89e6\u6478\u5c4f\u90fd\u5171\u7528\u4e00\u7ec4spi\u5f15\u811a\u4f20\u8f93\u6570\u636e\uff0c\u8fd9\u4f1a\u5f71\u54cd\u4f20\u8f93\u6548\u7387\uff1b\u5e76\u4e14\u9a71\u52a8\u4e5f\u9700\u8981\u6539\u52a8\u4ee3\u7801\u4ee5\u9002\u5e94\u6b64\u60c5\u51b5\u3002\u9664\u6b64\u4e4b\u5916\u5c4f\u5e55\u6574\u4f53\u6027\u80fd\u8fd8\u662f\u4e0d\u9519\u7684\uff0c\u9002\u5408\u7ec3\u624b\u3002<\/p>\n
3 lcd\u5c4f\u5e55<\/h1>\n
  \u70b9\u4eae\u6574\u4e2a\u5c4f\u5e55\u82b1\u8d39\u4e86\u5f88\u591a\u5de5\u592b\uff0c\u56de\u5934\u515c\u515c\u8f6c\u8f6c\u53d1\u73b0\u5f88\u591a\u95ee\u9898\u7684\u7b54\u6848\u5168\u5728\u6570\u636e\u624b\u518c\u91cc\uff0c\u6240\u4ee5\u4e00\u5b9a\u8981\u8bfb\u6570\u636e\u624b\u518c\uff01\u5927\u7565\u7684\u6284\u522b\u4eba\u7684\u4ee3\u7801\uff0c\u53ea\u8981\u6ca1\u5565\u95ee\u9898\uff0c\u57fa\u672c\u4e0a\u90fd\u4f1a\u628a\u5c4f\u5e55\u70b9\u4eae\uff0c\u4f46\u5230\u4e86\u7ec6\u8282\u5904\uff0c\u603b\u4f1a\u9047\u5230\u5404\u79cd\u5404\u6837\u7684bug\uff0c\u8fd9\u4e9bbug\u7684\u539f\u56e0\u5f80\u5f80\u662f\u56e0\u4e3a\u7167\u672c\u5ba3\u79d1\u6ca1\u8fdb\u884c\u5145\u8db3\u7684\u9002\u914d\u5bfc\u81f4\u7684\u3002
\n  \u8fd8\u6709\u5c4f\u5e55\u539f\u7406\u5565\u7684\u5c31\u4e0d\u8bb2\u4e86\uff0c\u6ca1\u5565\u7528\uff01\u4e14\u7f51\u4e0a\u8d44\u6599\u4e5f\u4e00\u5927\u5806\uff0c\u60f3\u770b\u767e\u5ea6\u5c31\u884c\u4e86\uff1b\u8fd9\u91cc\u76f4\u63a5\u5206\u6790\u70b9\u4eae\u5c4f\u5e55\u7684\u5173\u952e\u90e8\u5206\u5185\u5bb9\u3002<\/p>\n
3.1 \u5927\u5c0f\u7aef\u6570\u636e\u4f20\u8f93\u95ee\u9898<\/h2>\n
  \u8fd9\u4e2a\u95ee\u9898\u5173\u7cfb\u7740\u5c4f\u5e55\u80fd\u5426\u6b63\u786e\u663e\u793a\u989c\u8272\uff0c\u5728\u4ea7\u54c1\u624b\u518c44\u9875\u53ef\u4ee5\u770b\u51fa\uff0cspi\u4f20\u8f93\u6570\u636e\u65f6\uff0c\u5148\u4f20\u8f93\u7684\u662f\u9ad8\u4f4d\uff1b\u800c\u7cfb\u7edf\u662f\u5c0f\u7aef\u5b58\u50a8\u3002\u82e5\u4e0d\u8fdb\u884c\u5904\u7406\uff0c\u5219\u5c4f\u5e55\u63a5\u6536\u7684\u6570\u636e\u5c31\u662f\u5b8c\u5168\u9519\u8bef\u7684\uff0c\u65e0\u6cd5\u70b9\u4eae\u5c4f\u5e55\uff0c\u56e0\u6b64\u8981\u8bfb\u6570\u636e\u624b\u518c\uff0c\u6839\u636e\u624b\u518c\u8981\u6c42\u66f4\u6539\u9002\u914d\u9a71\u52a8\u4ee3\u7801\u3002<\/p>\n
3.1.1 \u5206\u6790\u6570\u636e\u624b\u518c<\/h3>\n
  \u5982\u4e0b\u56fe\u6240\u793a\u662f\u6570\u636e\u624b\u518c\u4e2d\u5bf9spi\u4f20\u8f93\u65f6\u6570\u636e\u7684\u8981\u6c42\uff1a<\/p>\n

\n
<\/div>
\n<\/center><\/p>\n
  \u5728\u56fe\u4e2dMSB\u662f\u6570\u636e\u7684\u6700\u9ad8\u4f4d\uff0c\u5373\u5b57\u8282\u6216\u5b57\u4e2d\u6700\u5de6\u8fb9\u7684\u4f4d\u3002\u5b83\u662f\u6570\u503c\u6700\u5927\u7684\u4f4d\u3002LSB\u662f\u6570\u636e\u7684\u6700\u4f4e\u4f4d\uff0c\u5373\u5b57\u8282\u6216\u5b57\u4e2d\u6700\u53f3\u8fb9\u7684\u4f4d\u3002\u5b83\u662f\u6570\u503c\u6700\u5c0f\u7684\u4f4d\u3002
\n  \u4f20\u8f93\u987a\u5e8f\uff1a\u5f53\u914d\u7f6e\u4e3a MSB \u4f18\u5148\u4f20\u8f93\u65f6\uff0cSPI \u603b\u7ebf\u4f1a\u5148\u4f20\u8f93\u6570\u636e\u7684\u6700\u9ad8\u4f4d\uff0c\u7136\u540e\u4f9d\u6b21\u4f20\u8f93\u6b21\u9ad8\u4f4d\uff0c\u76f4\u5230\u6700\u4f4e\u4f4d\uff08LSB\uff09\u3002\u5f53\u914d\u7f6e\u4e3a LSB \u4f18\u5148\u4f20\u8f93\u65f6\uff0cSPI \u603b\u7ebf\u4f1a\u5148\u4f20\u8f93\u6570\u636e\u7684\u6700\u4f4e\u4f4d\uff0c\u7136\u540e\u4f9d\u6b21\u4f20\u8f93\u6b21\u4f4e\u4f4d\uff0c\u76f4\u5230\u6700\u9ad8\u4f4d\uff08MSB\uff09\u3002
\n  \u7528\u9014\uff1aMSB \u901a\u5e38\u7528\u4e8e\u9700\u8981\u4fdd\u8bc1\u6570\u636e\u7684\u6700\u91cd\u8981\u90e8\u5206\u4f18\u5148\u4f20\u8f93\u7684\u573a\u5408\u3002\u5728\u8bb8\u591a\u6807\u51c6 SPI \u8bbe\u5907\u4e2d\uff0cMSB \u4f18\u5148\u662f\u9ed8\u8ba4\u914d\u7f6e\u3002LSB \u4f18\u5148\u4f20\u8f93\u6709\u65f6\u7528\u4e8e\u7279\u5b9a\u8bbe\u5907\u6216\u534f\u8bae\u9700\u6c42\uff0c\u4f46\u5728\u8bb8\u591a\u60c5\u51b5\u4e0b\u4e0d\u5982 MSB \u5e38\u7528\u3002
\n  \u7531\u4e0a\u6587\u53ef\u77e5\uff0c\u5c4f\u5e55\u9ed8\u8ba4\u7684\u662fMSB\u6a21\u5f0f\uff0cspi\u5b50\u7cfb\u7edf\u5728\u63a5\u6536\u6570\u636e\u65f6\uff0c\u662f\u5927\u7aef\u5e8f\uff1b\u56e0\u6b64\u9700\u8981\u5728lcd\u9a71\u52a8\u4e2d\u505a\u6570\u636e\u5904\u7406\uff0c\u5c06\u7cfb\u7edf\u5b58\u50a8\u7684\u6570\u636e\u7531\u5c0f\u7aef\u5e8f\u8f6c\u6362\u6210\u5927\u7aef\u5e8f\u518d\u6709\u5b58\u653e\u5230spi\u5b50\u7cfb\u7edf\u7684\u4f20\u8f93\u961f\u5217\u4e2d\u53d1\u9001\u3002<\/p>\n
3.1.2 \u5206\u6790\u9a71\u52a8\u4ee3\u7801<\/h3>\n
  \u5982\u4e0b\u662f\u5bf9\u6570\u636e\u5927\u5c0f\u7aef\u5b58\u50a8\u7684\u793a\u610f\uff1a<\/p>\n
\u539f\u59cb\u6570\u636e\n  \u9ad8\u4f4d-->\u4f4e\u4f4d\n0x12345678\n \u4f4e\u4f4d------->\u9ad8\u4f4d\n 12  34  56 78    \u5927\u7aef\n 78  56  34 12    \u5c0f\u7aef<\/code><\/pre>\n
  \u6570\u636e\u5b58\u50a8\u4f20\u8f93\u65b9\u5f0f\u4e0d\u4e00\u81f4\u5c31\u5bfc\u81f4\u4e00\u4e2a\u95ee\u9898\uff0c\u6211\u6570\u636e\u4f20\u8fc7\u6765\u5148\u8fdb\u5165\u7684\u662f78\uff0c\u662f\u6570\u636e\u7684\u4f4e\u4f4d\uff1b\u800cspi\u8981\u7684\u662f\u9ad8\u4f4d\uff0c\u51b2\u7a81\u4e86\uff0c\u5bfc\u81f4\u5c4f\u5e55\u63a5\u6536\u9519\u8bef\u6570\u636e\u65e0\u6cd5\u70b9\u4eae\u5c4f\u5e55\u3002\u6240\u4ee5\u8981\u5728\u9a71\u52a8\u4ee3\u7801\u4e2d\u5bf9\u6570\u636e\u8fdb\u884c\u5927\u5c0f\u7aef\u7684\u8f6c\u6362\u3002
\n  \u8fd9\u662f\u9a71\u52a8\u4ee3\u7801\u5bf9\u4e8e\u8fd9\u5757\u5904\u7406\u7684\u903b\u8f91\uff1a<\/p>\n
for (i = 0; i < to_copy; i++)\n        {\n            txbuf16[i] = cpu_to_be16(vmem16[i]);\n        }<\/code><\/pre>\n
  \u8fd9\u91cc\u7684cpu_to_be16\u51fd\u6570\u5c31\u662f\u5185\u6838\u81ea\u5e26\u7684\u5c0616\u4f4d\u6570\u636e\u8f6c\u6362\u4e3a\u5927\u7aef\u5e8f\u7684\u63a5\u53e3\u51fd\u6570\u3002\u56e0\u6b64\u5728\u4f7f\u7528spi\u5b50\u7cfb\u7edf\u4f20\u8f93\u6570\u636e\u524d\u8c03\u7528\u8be5\u63a5\u53e3\u8fdb\u884c\u6570\u636e\u8f6c\u6362\u5373\u53ef\u89e3\u51b3\u6b64\u95ee\u9898\u3002<\/p>\n
3.2 \u5c4f\u5e55\u989c\u8272\u9009\u62e9<\/h2>\n
3.2.1 \u70b9\u4eae\u5c4f\u5e55\u7684\u57fa\u672c\u539f\u7406<\/h3>\n
  \u4e0b\u9762\u662f\u9a71\u52a8\u4ee3\u7801\u4e2d\u70b9\u4eae\u5c4f\u5e55\u7684\u4ee3\u7801\u903b\u8f91\u3002
\n  lcd\u7684\u5c4f\u5e55\u662f\u7531\u4e00\u4e2a\u4e00\u4e2a\u7684lcd\u706f\u6784\u6210\uff0c\u70b9\u4eae\u6bcf\u4e2a\u706f\u8d4b\u4e88\u5176\u989c\u8272\uff0c\u76f4\u5230\u6240\u6709lcd\u706f\u90fd\u70b9\u4eae\uff0c\u5c31\u53ef\u4ee5\u70b9\u4eae\u6574\u4e2a\u5c4f\u5e55\u663e\u793a\u5f69\u8272\u56fe\u7247\u4e86\u3002\u800c\u5176\u5185\u90e8\u5b9e\u73b0\u6838\u5fc3\u4ee3\u7801\u662f\u5f80framebuffer\u4e2d\u7684\u4e00\u7ef4\u6570\u7ec4\u6307\u9488\u91cc\u5199\u6570\u636e\uff1a<\/p>\n
    for (int y = 0; y < height; y++) {\n        for (int x = 0; x < width; x++) {\nfb[y * width + x] = color;<\/code><\/pre>\n
  \u7531\u4e0a\u53ef\u77e5\u6211\u4eec\u9700\u8981\u8ba1\u7b97\u6bcf\u4e2a\u70b9\u7684\u5750\u6807\u5e76\u586b\u5145\u989c\u8272\u3002\u5728\u8ba1\u7b97\uff08x,y\uff09\u7684\u5750\u6807\u65f6\uff0cwidth\u8868\u793a\u6bcf\u884c\u6709width\u4e2a\u50cf\u7d20\uff1by*width\u8868\u793a\u7b2cy\u884c\u7684\u8d77\u59cb\u5750\u6807\uff0c+x\u8868\u793a\u7b2cx\u4e2a\u50cf\u7d20\u70b9\u3002\u6700\u7ec8\u83b7\u53d6\u6bcf\u4e2alcd\u7684\u5750\u6807(xk<\/sub>,yk<\/sub>)\uff0c\u4f8b\u5982\uff1a\uff082\uff0c2\uff09\u3002\u83b7\u53d6\u5750\u6807\u540e\u518d\u8d4b\u4e88\u5176\u989c\u8272\u5f97\u6570\u636e\u5373\u53ef\u70b9\u4eae\u5bf9\u5e94\u989c\u8272\u5f97lcd\u706f\u3002<\/p>\n
3.2.2 \u5c4f\u5e55\u989c\u8272\u7684\u9009\u62e9<\/h3>\n
  \u989c\u8272\u7684\u9009\u62e9\u5bf9\u4e8e\u5c4f\u5e55\u7684\u663e\u793a\u6548\u679c\u4ee5\u53ca\u540e\u7eed\u9002\u914dlvgl\u90fd\u81f3\u5173\u91cd\u8981\uff0c\u5176\u672c\u8d28\u5c31\u662f\u5c4f\u5e55\u7684\u6bcf\u4e2alcd\u706f\u663e\u793a\u4ec0\u4e48\u989c\u8272\uff0c\u8fd9\u91cc\u6211\u9009\u62e9\u7684\u662frgb565\uff1b\u4e00\u517116\u4f4d\u7684\u989c\u8272\u6570\u636e\u3002\u53ef\u4ee5\u76f4\u63a5\u9002\u914dlvgl\uff0c\u4e0d\u7528\u505a\u5927\u7684\u6539\u52a8\u3002<\/p>\n
\u7ea2\u8272\uff08R\uff09\uff1a\u9ad8 5 \u4f4d\uff0815-11\uff09\n\u7eff\u8272\uff08G\uff09\uff1a\u4e2d 6 \u4f4d\uff0810-5\uff09\n\u84dd\u8272\uff08B\uff09\uff1a\u4f4e 5 \u4f4d\uff084-0\uff09<\/code><\/pre>\n
  \u800c\u989c\u8272\u7684\u9009\u62e9\u53c8\u5173\u8054\u7740\u4f20\u8f93\u6570\u636e\u7684\u9009\u62e9\u3002\u6839\u636e\u4e0a\u6587\u7684\u786c\u4ef6\u63a5\u7ebf\u53ef\u77e5\u5c4f\u5e55\u662f4\u7ebfspi\uff0c\u901a\u8fc7\u6570\u636e\u624b\u518c\u53ef\u77e5\u56db\u7ebfspi\u4f20\u8f93\u6570\u636e\u7684\u5185\u5bb9\u57284.7.2\u7ae0\u8282\u5185\uff1b\u53c8\u56e0\u4e3a\u6211\u4eec\u9009\u62e9\u7684rgb565\u662f16\u4f4d\u7684\u6570\u636e\u683c\u5f0f\uff0c\u6240\u4ee5\u6700\u7ec8\u7684\u6a21\u5f0f\u662f\u5982\u4e0b\u6240\u793a\u76844.7.5.1\u7ae0\u8282\u4f20\u8f93\u683c\u5f0f\u3002<\/p>\n

\n
<\/div>
\n<\/center><\/p>\n
  \u4ece\u56fe\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0c\u5728\u6a21\u5f0f\u786e\u5b9a\u540e\u8981\u8fdb\u884c\u8bbe\u7f6e\u9700\u8981\u8f93\u51653ah\u547d\u4ee4\uff0c\u7136\u540e\u8bbe\u7f6e\u5177\u4f53\u7684\u6a21\u5f0f\u3002<\/p>\n

\n
<\/div>
\n<\/center><\/p>\n
  \u5982\u56fe\u6240\u793a\uff0c\u53ef\u4ee5\u786e\u5b9a2\u4e2a\u6a21\u5f0f\u4f4d\u90fd\u9009\u62e916bit\u540e\uff0c\u6700\u7ec8\u8f93\u5165\u7684\u6a21\u5f0f\u503c\u662f0x55\u3002<\/p>\n

\n
<\/div>
\n<\/center><\/p>\n
3.3 \u7ea2\u84dd\u53cd\u7f6e\u95ee\u9898<\/h2>\n
  \u5728\u6210\u529f\u70b9\u4eae\u5c4f\u5e55\u540e\uff0c\u53d1\u73b0\u56fe\u7247\u989c\u8272\u4e0d\u5bf9\uff0c\u624d\u77e5\u9053\u8fd8\u6709\u8fd9\u4e2a\u95ee\u9898\u3002\u5c31\u662f\u5355\u7eaf\u7ea2\u84dd\u989c\u8272\u9519\u4f4d\u4e86\uff0c\u6b63\u5e38\u662f\u770b\u4e0d\u51fa\u6765\u7684\uff0c\u9700\u8981\u8ba9\u5c4f\u5e55\u663e\u793a\u4e00\u5f20\u4e09\u539f\u8272\u7684\u56fe\u7247\uff0c\u770b\u989c\u8272\u662f\u5426\u6b63\u786e\uff0c\u4e0d\u6b63\u786e\u9700\u8981\u5f00\u542f\u7ea2\u84dd\u53cd\u7f6e\u3002
\n  \u6d41\u7a0b\u5982\u4e0a\u4e00\u5c0f\u8282\uff0c\u627e\u52300x36\u547d\u4ee4\uff0c\u5f00\u542f\u7ea2\u84dd\u53cd\u7f6e\u4f4d\u540e\uff0c\u8f93\u5165\u7684\u503c\u662f0x28\uff1b
\n  \u800c\u5f00\u542f\u540e\uff0c\u4f9d\u65e7\u4f1a\u6709\u95ee\u9898\uff0c\u8fd9\u662f\u56e0\u4e3a\u9a71\u52a8\u6e90\u7801\u4e2d\u5bf9\u7ea2\u84dd\u53cd\u7f6e\u7684\u914d\u7f6e\u53c8\u505a\u4e86\u8bbe\u7f6e\u3002\u5177\u4f53\u903b\u8f91\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
\/\/\u4ece\u8bbe\u5907\u6811\u4e2d\u83b7\u53d6bgr\u5c5e\u6027\u503c\npdata->bgr = device_property_read_bool(dev, \"bgr\");\n    |\n\/\/\u518d\u8d4b\u503c\npar->bgr = pdata->bgr;\n    |\n\/\/\u5c06\u503c\u8fd0\u7b97\u540e\u4f20\u7ed9\u5c4f\u5e55\nwrite_reg(par, MIPI_DCS_SET_ADDRESS_MODE,\n              0x80 | (par->bgr << 3));<\/code><\/pre>\n
  \u4ece\u8fd9\u91cc\u770b\uff0cbgr\u7684\u503c\u53c8\u91cd\u65b0\u8d4b\u4e86\u4e00\u6b21\uff0c\u5bfc\u81f4\u6211\u5373\u4f7f\u5728\u521d\u59cb\u5316\u65f6\u8bbe\u7f6e\u4e86\u7ea2\u84dd\u53cd\u7f6e\u4e5f\u6ca1\u6548\u679c\uff1b\u72e0\u72e0\u7684\u5361\u4e86\u6211\u51e0\u4e2a\u665a\u4e0a\uff01\uff01\uff01\u8fd9\u91cc\u5bf9\u8fd9\u4e2a\u95ee\u9898\u7684\u4fee\u6539\u65b9\u6cd5\u6709\u5982\u4e0b\u4e24\u79cd\uff1a<\/p>\n
\/\/1.\u5728lcd\u7684\u8bbe\u5907\u6811\u4e2d\u6dfb\u52a0bgr\u5c5e\u6027\uff0c\u5c06\u5c5e\u6027\u503c\u7f6e1\u3002\nbgr = 1\uff1b\n\u6216\n\/\/2.\u76f4\u63a5\u6ce8\u6389\u4e0a\u9762\u7684par->bgr = pdata->bgr\uff1b\u91cd\u65b0\u8d4b\u503c\u3002\npar->bgr = 1;<\/code><\/pre>\n
  \u63a8\u8350\u7b2c\u4e00\u79cd\u65b9\u6cd5\u3002
\n  \u5982\u4e0b\u662f\u6211\u7ed3\u5408\u5b98\u65b9demo\u548c\u5176\u4ed6\u7684\u4f8b\u7a0b\u7efc\u5408\u7ed9\u51fa\u7684\u5c4f\u5e55\u521d\u59cb\u5316\u53c2\u6570\uff1a<\/p>\n
 \/\/\u8bbe\u7f6espi\u4f20\u8f93\u6570\u636e\u7684\u6a21\u5f0f-----4\u7ebf\u6a21\u5f0f\n 0xb0, 0x0,\nMIPI_DCS_EXIT_SLEEP_MODE,  \/\/\u9000\u51fa\u7761\u7720\u6a21\u5f0f\n250\uff08\u5ef6\u65f6ns\uff09\n \/\/\u8bbe\u7f6espi\u50cf\u7d20\u683c\u5f0f\uff0c3ah----rgb565-16\u4f4d\u7684\nMIPI_DCS_SET_PIXEL_FORMAT, 0x55,\n\/\/\u529f\u7387\u63a7\u5236\n    -1, 0xC2, 0x44,  \/\/\u7535\u6e90\u6a21\u5f0f\uff0c\u6b63\u5e38\u6a21\u5f0f\n    -1, 0x21,  \/\/\u53cd\u663e\n \/\/vcom\u63a7\u5236\n    -1, 0xC5, 0x00, 0x00, 0x00, 0x00,\n    \/\/\uff0c-1, 0xC5, 0x00, 0x1e, 0x80,\n    -1, 0xb6, 0x02,0x42,\/\/\u663e\u793a\u529f\u80fd\u63a7\u5236\n    -1, 0x36, 0x28,\/\/\u6570\u636e\u5b58\u50a8\u63a7\u5236\uff0c\u91cd\u70b9\u7528\u4e86\u7ea2\u84dd\u53cd\u7f6e\u7684\u529f\u80fd\u4f4d\n    \/* PGAMCTRL(Positive Gamma Control) *\/\/\/gamma\u503c\u6821\u51c6\n    -1, 0xE0, 0x00, 0x13, 0x18, 0x04, 0x0F, 0x06, 0x3a, 0x56,\n          0x4d, 0x03, 0x0a, 0x06, 0x30, 0x3e, 0x0f,\n    \/* NGAMCTRL(Negative Gamma Control) *\/\n    -1, 0xE1, 0x00, 0x13, 0x18, 0x01, 0x11, 0x06, 0x38, 0x34,\n          0x4d, 0x06, 0x0d, 0x0b, 0x31, 0x37, 0x0f,\nMIPI_DCS_EXIT_SLEEP_MODE,\nMIPI_DCS_SET_DISPLAY_ON,<\/code><\/pre>\n
  \u5982\u679c\u5bf9\u663e\u793a\u6548\u679c\u6709\u8ffd\u6c42\uff0c\u5219\u53ef\u4ee5\u7ec6\u8bfb\u624b\u518c\uff0c\u989d\u5916\u6dfb\u52a0\u4e00\u4e9b\u547d\u4ee4\u53c2\u6570\u6765\u63d0\u5347\u663e\u793a\u6548\u679c\u3002<\/p>\n
3.4 \u5c0f\u7ed3<\/h2>\n
  \u81f3\u6b64lcd\u5c4f\u5e55\u786c\u4ef6\u65b9\u9762\u57fa\u672c\u6ca1\u5565\u95ee\u9898\u4e86\u3002
\n  \u4ece\u4e0a\u6587\u53ef\u770b\u51fa\u8fd9\u4e2aluckfox\u5b98\u65b9\u51fa\u7684\u5c4f\u5e55\u6027\u80fd\u8fd8\u662f\u5f88\u5f3a\u5927\u7684\uff0c\u6ca1\u6709\u9609\u5272\u5c4f\u5e55\u62103\u7ebfspi\uff0c\u800c\u662f\u914d\u7f6e\u76844\u7ebfspi\uff0c\u8fd9\u4e3a\u540e\u9762\u79fb\u690dlvgl\u7701\u4e0b\u4e86\u5927\u91cf\u65f6\u95f4\uff0c\u9a71\u52a8\u4ee3\u7801\u4e5f\u4e0d\u7528\u5927\u52a8\u4e86\uff0c\u751a\u81f3\u56e0\u4e3a\u4e0d\u7528\u8fdb\u884c\u989c\u8272\u683c\u5f0f\u8f6c\u6362\uff0c\u800c\u8282\u7701\u4e86\u5927\u91cf\u7684\u6570\u636e\u8f6c\u6362\u65f6\u95f4\uff0c\u63d0\u5347\u4e86\u5c4f\u5e55\u7684\u5237\u65b0\u7387\u3002\u5982\u4e0b\u6240\u793a\uff0c\u5728lvgl\u7684\u914d\u7f6e\u6587\u4ef6lv_conf.h\u663e\u793a\u4e86\u53ea\u652f\u6301\u4e0b\u9762\u51e0\u4e2a\u6570\u636e\u683c\u5f0f\u3002\u82e5\u4f7f\u7528\u5176\u4ed6\u989c\u8272\u683c\u5f0f\uff0c\u9700\u8981\u4e13\u95e8\u9002\u914d\u3002<\/p>\n
\/*Color depth: 1 (1 byte per pixel), 8 (RGB332), 16 (RGB565), 32 (ARGB8888)*\/\n#define LV_COLOR_DEPTH 16<\/code><\/pre>\n
  \u540e\u9762\u548c\u5176\u4ed6\u4eba\u4ea4\u6d41\u53d1\u73b0\uff0c\u4ed6\u4eec\u5c31\u662f\u56e0\u4e3a\u4f7f\u7528\u540c\u6b3e\u4e09\u7ebfspi\u5c4f\u5e55\u5728\u79fb\u690dlvgl\u65f6\u5c31\u56e0\u4e3a\u5c4f\u5e55\u4e0d\u652f\u63013\u7ebf\u7684rgb565\uff0c\u8fdb\u800c\u5bfc\u81f4\u53ea\u80fd\u4f7f\u7528\u5176\u4ed6\u7684\u989c\u8272\u683c\u5f0f\uff0c\u8fd8\u8981\u5728\u9a71\u52a8\u5c42\u505a\u4e00\u6b21\u6570\u636e\u8f6c\u6362\uff0c\u62c9\u4f4e\u4e86\u5c4f\u5e55\u5237\u65b0\u901f\u5ea6\u3002\u7efc\u5408\u6765\u770b\u5b98\u65b9\u7684\u8fd9\u4e2a\u5c4f\u5e55\u8fd8\u662f\u4e0d\u9519\u7684\u3002<\/p>\n
4 \u89e6\u6478\u5c4f<\/h1>\n
  \u672c\u4ee5\u4e3alcd\u70b9\u4eae\u52a0lvgl\u79fb\u690d\u663e\u793a\u6210\u529f\u540e\u5c31\u6ca1\u5565\u96be\u9898\u4e86\uff0c\u6ca1\u60f3\u5230\u540e\u9762\u79fb\u690d\u89e6\u6478\u5c4f\u9a71\u52a8\u53c8\u662f\u4e00\u4e2a\u5927\u6df1\u5751\u3002\u5728\u79fb\u690d\u89e6\u6478\u9a71\u52a8\u65f6\u9047\u5230\u4e86\u4e2d\u65ad\u4e0espi\u5b50\u7cfb\u7edf\u51b2\u7a81\u7684\u95ee\u9898\uff0c\u5728\u8fd9\u4e2a\u5751\u91cc\u515c\u515c\u8f6c\u8f6c\u4e86\u597d\u957f\u4e00\u6bb5\u65f6\u95f4\uff1b\u7d22\u6027\u7687\u5929\u4e0d\u8d1f\u6709\u5fc3\u4eba\uff0c\u6700\u7ec8\u89e3\u51b3\u4e86\u8fd9\u4e2a\u95ee\u9898\u3002\u89e3\u51b3\u95ee\u9898\u540e\u56de\u5934\u770b\u53d1\u73b0\u8fd9\u4e9b\u95ee\u9898\u672c\u8eab\u5e76\u6ca1\u6709\u591a\u96be\uff0c\u96be\u70b9\u5728\u4e8e\u7f51\u4e0a\u8d44\u6599\u5f88\u5c11\uff0c\u5168\u9760\u81ea\u5df1\u6478\u7d22\u89e3\u51b3\u3002<\/p>\n
4.1 \u8bfbXPT2046\u6570\u636e\u624b\u518c<\/h2>\n
  \u6574\u4f53\u624b\u518c\u8bfb\u4e0b\u6765\u6ca1\u5565\u8981\u6c42\u548c\u7ec6\u8282\uff0c\u8981\u6ce8\u610f\u7684\u662f\u8fd4\u56de\u6570\u636e\u662f16\u4f4d\u7684\uff0c\u4f46\u6570\u636e\u662f\u9ad812\u4f4d\u6709\u6548\uff1b\u4e14\u5b9e\u9645\u5e94\u7528\u4e2d\u4e00\u6b21\u8fd4\u56de8\u4f4d\u6570\u636e\uff0c\u56e0\u6b64\u63a5\u6536\u7684\u6570\u636e\u9700\u8981\u81ea\u5df1\u62fc\u63a5\u6574\u7406\u3002\u5176\u6b21\u5c31\u662f\u4f20\u8f93\u547d\u4ee4\uff0cx\u8f74\u5c31\u662f0xd0\uff0cy\u8f74\u5c31\u662f0x90.\u5176\u4ed6\u6ca1\u4efb\u4f55\u8bb2\u7a76\u3002
\n  \u5982\u4e0b\u662f\u5b98\u65b9\u624b\u518c\u91cc\u5bf9\u4f20\u8f93\u547d\u4ee4\u6bcf\u4e00\u4f4d\u7684\u89e3\u6790\uff1b\u5176\u5b9e\u4e5f\u53ef\u4ee5\u4e0d\u7528\u770b\uff0c\u7efc\u5408\u8ba1\u7b97\u540e\u5f97\u5230\u7684\u503c\u5c31\u662f0x90\u548c0xd0\u3002<\/p>\n

\n
<\/div>
\n<\/center><\/p>\n
  \u7efc\u4e0a\u6240\u8ff0\u53ef\u770b\u51fa\u76f8\u8f83lcd\u663e\u793a\u5c4f\u521d\u59cb\u5316\uff0c\u89e6\u6478\u5c4f\u7684\u521d\u59cb\u5316\u6ca1\u5565\u96be\u5ea6\uff1b\u96be\u70b9\u5728\u4e8e\u4e2d\u65ad\u548cspi\u4f20\u8f93\u6570\u636e\u7684\u914d\u5408\u3002<\/p>\n
4.2 \u89e6\u6478\u5c4f\u4e0elcd\u5c4f\u8c03\u7528spi\u5b50\u7cfb\u7edf\u51b2\u7a81\u95ee\u9898<\/h2>\n
  \u8fd9\u4e2a\u89e6\u6478\u5c4f\u4ece\u4e0a\u9762\u5c4f\u5e55\u7684\u5f15\u811a\u4fe1\u606f\u53ef\u4ee5\u770b\u51fa\uff0c\u662f\u548cili9488lcd\u5c4f\u5e55\u5171\u7528\u4e00\u7ec4spi\u5f15\u811a\u7684\uff0c\u56e0\u6b64spi\u5f15\u811a\u5728\u9a71\u52a8\u548c\u8bbe\u5907\u6811\u4e0a\u9700\u8981\u6ce8\u610f\u4e00\u4e0b\u3002\u5b83\u4eec\u5b58\u5728\u4f20\u8f93\u65f6\u5e8f\u7684\u95ee\u9898\u3002\u8fd9\u662f\u91cd\u4e2d\u4e4b\u91cd\uff01\u9700\u8981\u91cd\u70b9\u5173\u6ce8\u3002
\n  \u5c55\u5f00\u6765\u8bb2\u65f6\u5e8f\u95ee\u9898\u5c31\u662flcd\u6a21\u5757\u8c03\u7528spi\u5b50\u7cfb\u7edf\u4f20\u8f93\u6570\u636e\u8fd8\u672a\u5b8c\u6210\u65f6\uff0c\u89e6\u53d1\u4e86\u4e2d\u65ad\u8c03\u7528\u89e6\u6478\u6a21\u5757\u4e5f\u8c03\u7528spi\u63a5\u53e3\u8bfb\u53d6\u5750\u6807\u4fe1\u606f\uff0c\u8fd9\u65f6\u4e0d\u505a\u5904\u7406\u5c31\u4f1a\u5bfc\u81f4spi\u4f20\u8f93\u65f6\u5e8f\u6df7\u4e71\uff0c\u51fa\u73b0\u672a\u77e5\u9519\u8bef\u3002
\n  \u89e3\u51b3\u65b9\u5f0f\u662f\u5229\u7528lcd\u5c4f\u5e55\u548c\u89e6\u6478\u5c4f\u7684cs\u7247\u9009\u5f15\u811a\uff0c\u5229\u7528\u4ed6\u4eec\u7684\u72b6\u6001\u505a\u4e2a\u9501\u5728\u4e8c\u8005\u8c03\u7528spi\u5b50\u7cfb\u7edf\u662f\u8fdb\u884c\u9650\u5236\uff0c\u4ece\u800c\u89e3\u51b3\u6b64\u95ee\u9898\uff08\u540e\u7eed\u5728\u9a71\u52a8\u7ae0\u8282\u8be6\u8ff0\uff09\u3002<\/p>\n
5 \u603b\u7ed3<\/h1>\n
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\n  \u6ce8\uff1asd\u5361\u6587\u4ef6\u7cfb\u7edf\u6a21\u5757\uff1b\u8fd9\u4e2a\u6a21\u5757\u6211\u6ca1\u7528\u5230\uff0c\u5c31\u6ca1\u79fb\u690d\u3002\u5176\u5b9e\u548clvgl\u7c7b\u4f3c\uff0c\u90fd\u662f\u5199\u597d\u7684\u6a21\u5757\uff1b\u53ea\u9700\u8981\u4fee\u6539\u51e0\u4e2a\u53c2\u6570\uff0c\u5f15\u811a\u521d\u59cb\u5316\u597d\u5c31\u80fd\u4f7f\u7528\u3002\u540e\u9762\u7528\u5230\u65f6\u4f1a\u66f4\u65b0\u76f8\u5173\u6559\u7a0b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
1 \u524d\u8a00   \u6700\u8fd1\u7ec8\u4e8e\u6253\u901a\u4e86\u4ece\u5e94\u7528\u5c42\u5230\u9a71\u52a8\u518d\u5230\u786c\u4ef6\u5f97\u6574\u4e2a\u6d41\u7a0b\uff0c\u628a\u89e6\u6478\u5c4f\u70b9\u4eae\u4e86\u3002\u56de\u5934\u770b\u53d1\u73b0\u62d6 […]<\/p>\n","protected":false},"author":1,"featured_media":511,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[16,29,33,11],"class_list":["post-298","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-flushbonading-lcd","tag-16","tag-29","tag-33","tag-11"],"_links":{"self":[{"href":"https:\/\/www.yanwenkai.com\/index.php?rest_route=\/wp\/v2\/posts\/298","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yanwenkai.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yanwenkai.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yanwenkai.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yanwenkai.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=298"}],"version-history":[{"count":32,"href":"https:\/\/www.yanwenkai.com\/index.php?rest_route=\/wp\/v2\/posts\/298\/revisions"}],"predecessor-version":[{"id":509,"href":"https:\/\/www.yanwenkai.com\/index.php?rest_route=\/wp\/v2\/posts\/298\/revisions\/509"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yanwenkai.com\/index.php?rest_route=\/wp\/v2\/media\/511"}],"wp:attachment":[{"href":"https:\/\/www.yanwenkai.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=298"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yanwenkai.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=298"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yanwenkai.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=298"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}