{"id":10020529,"date":"2024-12-20T22:57:04","date_gmt":"2024-12-20T14:57:04","guid":{"rendered":"https:\/\/itmax.cn\/?p=10020529"},"modified":"2024-12-20T22:57:04","modified_gmt":"2024-12-20T14:57:04","slug":"lcd1602%e6%98%be%e7%a4%ba%e6%a8%a1%e5%9d%97%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10020529","title":{"rendered":"LCD1602\u663e\u793a\u6a21\u5757\u8be6\u89e3"},"content":{"rendered":"<p>LCD1602\uff08 Liquid Crystal Display 1602\uff09\uff0c\u4e00\u79cd\u5e38\u89c1\u7684\u5b57\u7b26\u578b\u6db2\u6676\u663e\u793a\u6a21\u5757\u3002\u867d\u7136\u5b83\u63a5\u7ebf\u591a\uff0c\u4f46\u662fLCD1602\u662f\u6bcf\u4e2a\u5d4c\u5165\u5f0f\u5de5\u7a0b\u5e08\u7684\u5fc5\u7ecf\u4e4b\u8def\u3002\u5b83\u80fd\u591f\u663e\u793a16\u52172\u884c\uff0c\u517132\u4e2a\u5b57\u7b26\u5b57\u7b26\uff0c\u6bcf\u4e2a\u5b57\u7b26\u90fd\u75315&#215;8\u50cf\u7d20\u70b9\u9635\u6784\u6210\uff0c<strong>\u662f\u4e00\u79cd\u4e13\u95e8\u7528\u6765\u663e\u793a\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u7b26\u53f7\u7b49\u7684\u6db2\u6676\u663e\u793a\u6a21\u5757\u3002<\/strong><\/p>\n<p>LCD \u5177\u6709\u4f53\u79ef\u5c0f\u3001\u529f\u8017\u4f4e\u3001\u663e\u793a\u5185\u5bb9\u4e30\u5bcc\u7b49\u7279\u70b9\uff0c\u8fd9\u79cd\u663e\u793a\u6a21\u5757\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5d4c\u5165\u5f0f\u7cfb\u7edf\u548c\u7535\u5b50\u9879\u76ee\u4e2d\uff0c\u4e3a\u5f00\u53d1\u8005\u63d0\u4f9b\u4e86\u7b80\u5355\u800c\u6709\u6548\u7684\u6587\u672c\u548c\u6570\u5b57\u663e\u793a\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8 LCD \u4e2d\u7684 LCD1602 \u7684\u7279\u70b9\u3001\u539f\u7406\u548c\u5de5\u4f5c\u65b9\u5f0f\u3002\u540c\u65f6\uff0c\u6211\u4eec\u8fd8\u4f1a\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u4ee3\u7801\u8fdb\u884c\u521d\u59cb\u5316\u548c\u7f16\u7a0b\uff0c\u4ee5\u5b9e\u73b0\u81ea\u5b9a\u4e49\u7684\u5185\u5bb9\u663e\u793a\u3002<\/p>\n<p>\u901a\u8fc7\u5b66\u4e60 LCD1602\uff0c\u60a8\u5c06\u80fd\u591f\u66f4\u597d\u5730\u7406\u89e3\u6db2\u6676\u663e\u793a\u6280\u672f\uff0c\u5e76\u5c06\u5176\u5e94\u7528\u4e8e\u5404\u79cd\u9879\u76ee\u4e2d\u3002\u65e0\u8bba\u60a8\u662f\u65b0\u624b\u8fd8\u662f\u6709\u7ecf\u9a8c\u7684\u5f00\u53d1\u4eba\u5458\uff0c\u672c\u6587\u90fd\u5c06\u4e3a\u60a8\u63d0\u4f9b\u57fa\u7840\u77e5\u8bc6\u548c\u5b9e\u7528\u6307\u5357\u3002<\/p>\n<h2>1. \u6e90\u7801\u4e0b\u8f7d\u53ca\u524d\u7f6e\u9605\u8bfb<\/h2>\n<p>\u672c\u6587\u9996\u53d1 <strong>\u826f\u8bb8\u5d4c\u5165\u5f0f\u7f51<\/strong> \uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=ESiBAmLuTPWBC7Cn7fuQTQ%3D%3D.%2FEXbqW2%2F9ak%2Baj6CmfQaMufx%2Br6OIORo0EV9FG9ngdM%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">https:\/\/www.lxlinux.net\/e\/<\/a> \uff0c\u6b22\u8fce\u5173\u6ce8\uff01<\/p>\n<p>\u672c\u6587\u6240\u6d89\u53ca\u7684\u6e90\u7801\u53ca\u5b89\u88c5\u5305\u5982\u4e0b\uff08\u7531\u4e8e\u5e73\u53f0\u9650\u5236\uff0c\u8bf7\u70b9\u51fb\u4ee5\u4e0b\u94fe\u63a5\u9605\u8bfb\u539f\u6587\u4e0b\u8f7d\uff09\uff1a<\/p>\n<p><a href=\"https:\/\/link.segmentfault.com\/?enc=45Ot1ngBw3un5FhR5MwY1Q%3D%3D.RiX%2Fl1FRviiNuoWMwicQW5FS6Vx52YUO%2F8zyb8HUzf3u%2F5j5k2et7SupaemWmI6TPyRypthYj45RDVUHah%2FY7Q%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">https:\/\/www.lxlinux.net\/e\/stm32\/lcd1602-tutorial.html<\/a><\/p>\n<p>\u5982\u679c\u4f60\u662f\u5d4c\u5165\u5f0f\u5f00\u53d1\u5c0f\u767d\uff0c\u90a3\u4e48\u5efa\u8bae\u4f60\u5148\u8bfb\u8bfb\u4e0b\u9762\u51e0\u7bc7\u6587\u7ae0\u3002<\/p>\n<ul>\n<li>\u4e86\u89e3\u4e0d\u540c\u7684\u4e0b\u8f7d\u7a0b\u5e8f\u65b9\u6cd5\uff0c\u4e3a\u4f60\u7684\u5d4c\u5165\u5f0f\u5f00\u53d1\u63d0\u4f9b\u66f4\u591a\u9009\u62e9\uff1a<a href=\"https:\/\/segmentfault.com\/a\/https\uff1a\/\/www.lxlinux.net\/e\/stm32\/five-ways-to-flash-program-to-stm32.html\" target=\"_blank\" rel=\"noopener noreferrer\">STM32\u4e0b\u8f7d\u7a0b\u5e8f\u7684\u4e94\u79cd\u65b9\u6cd5<\/a><\/li>\n<li>\u624b\u628a\u624b\u8ba9\u4f60\u638c\u63e1MDK\u7684\u4f7f\u7528\u65b9\u5f0f\u548c\u6280\u5de7\uff0c\u52a9\u4f60\u66f4\u9ad8\u6548\u5730\u8fdb\u884c\u5f00\u53d1\uff1a<a href=\"https:\/\/segmentfault.com\/a\/https\uff1a\/\/www.lxlinux.net\/e\/stm32\/mdk-development-tool-tutorial.html\" target=\"_blank\" rel=\"noopener noreferrer\">\u4e00\u6587\u6559\u4f60\u4f7f\u7528MDK\u5f00\u53d1\u5de5\u5177<\/a><\/li>\n<li>\u4ece\u96f6\u5f00\u59cb\u8f7b\u677e\u638c\u63e1STM32\u5f00\u53d1\u7684\u5fc5\u5907\u6307\u5357\uff1a<a href=\"https:\/\/segmentfault.com\/a\/https\uff1a\/\/www.lxlinux.net\/e\/stm32\/stm32-quick-start-for-beginner.html\" target=\"_blank\" rel=\"noopener noreferrer\">\u96f6\u57fa\u7840\u5feb\u901f\u4e0a\u624bSTM32\u5f00\u53d1\uff08\u624b\u628a\u624b\u4fdd\u59c6\u7ea7\u6559\u7a0b\uff09<\/a><\/li>\n<\/ul>\n<p>\u5f80\u671f\u7cbe\u5f69\u6559\u7a0b\uff0c\u6709\u5174\u8da3\u7684\u5c0f\u4f19\u4f34\u53ef\u4ee5\u770b\u770b\u3002<\/p>\n<ul>\n<li>\u4ece\u96f6\u5f00\u59cb\u8f7b\u677e\u638c\u63e1STM32\u5f00\u53d1\u7684\u5fc5\u5907\u6307\u5357\uff1a<a href=\"https:\/\/segmentfault.com\/a\/https\uff1a\/\/www.lxlinux.net\/e\/stm32\/stm32-quick-start-for-beginner.html\" target=\"_blank\" rel=\"noopener noreferrer\">\u96f6\u57fa\u7840\u5feb\u901f\u4e0a\u624bSTM32\u5f00\u53d1\uff08\u624b\u628a\u624b\u4fdd\u59c6\u7ea7\u6559\u7a0b\uff09<\/a><\/li>\n<li>\u6df1\u5165\u6d45\u51fa\uff0c\u5e2e\u52a9\u60a8\u7406\u89e3\u548c\u5e94\u7528MQTT\u534f\u8bae\uff1a<a href=\"https:\/\/segmentfault.com\/a\/https\uff1a\/\/www.lxlinux.net\/e\/stm32\/mqtt-turorial.html\" target=\"_blank\" rel=\"noopener noreferrer\">\u4e07\u5b57\u731b\u6587\uff1aMQTT\u539f\u7406\u53ca\u6848\u4f8b<\/a><\/li>\n<li>\u901a\u4fd7\u6613\u61c2\u7684 GPIO \u4ecb\u7ecd\u4e0e\u5b9e\u8df5\uff1a<a href=\"https:\/\/segmentfault.com\/a\/https\uff1a\/\/www.lxlinux.net\/e\/stm32\/stm32-gpio-hal.html\" target=\"_blank\" rel=\"noopener noreferrer\">\u5982\u4f55\u5feb\u901f\u6210\u4e3a\u70b9\u706f\u5927\u5e08\uff1f<\/a><\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th align=\"left\">\u4f5c\u8005\u7b80\u4ecb<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td align=\"left\">\u5927\u5bb6\u597d\uff0c\u6211\u662f\u826f\u8bb8\uff0c\u535a\u5ba2\u91cc\u6240\u6709\u7684\u6587\u7ae0\u7686\u4e3a\u6211\u7684\u539f\u521b\u3002<br \/>\u4e0b\u9762\u662f\u6211\u7684\u4e00\u4e9b\u4e2a\u4eba\u4ecb\u7ecd\uff0c\u6b22\u8fce\u4ea4\u4e2a\u670b\u53cb\uff1a<br \/>\u00b7 211\u5de5\u79d1\u7855\u58eb\uff0c\u56fd\u5bb6\u5956\u5b66\u91d1\u83b7\u5f97\u8005\uff1b<br \/>\u00b7 \u6df1\u8015\u5d4c\u5165\u5f0f11\u5e74\uff0c\u524d\u4e16\u754c500\u5f3a\u5916\u4f01\u9ad8\u7ea7\u5d4c\u5165\u5f0f\u5de5\u7a0b\u5e08\uff1b<br \/>\u00b7 \u4e66\u7c4d\u300a\u901f\u5b66Linux\u4f5c\u8005\u300b\uff0c\u673a\u68b0\u5de5\u4e1a\u51fa\u7248\u793e\u4e13\u5bb6\u59d4\u5458\u4f1a\u6210\u5458\uff1b<br \/>\u00b7 \u5168\u7f5160W\u7c89\u4e1d\uff0c\u535a\u5ba2\u5206\u4eab\u5927\u91cf\u539f\u521b\u6210\u4f53\u7cfb\u6587\u7ae0\uff0c\u5168\u7f51\u9605\u8bfb\u91cf\u7d2f\u8ba1\u8d854000\u4e07\uff1b<br \/>\u00b7 \u9760\u81ea\u5a92\u4f53\u8fde\u7eed\u5e74\u5165\u767e\u4e07\uff0c\u9760\u81ea\u5df1\u4e70\u623f\u4e70\u8f66\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u6211\u672c\u79d1\u53ca\u7855\u58eb\u90fd\u662f\u5b66\u673a\u68b0\uff0c\u901a\u8fc7\u81ea\u5b66\u6210\u529f\u8fdb\u5165\u4e16\u754c500\u5f3a\u5916\u4f01\u3002\u6211\u5df2\u7ecf\u5c06\u81ea\u5df1\u7684\u5b66\u4e60\u7ecf\u9a8c\u5199\u6210\u4e86\u4e00\u672c\u7535\u5b50\u4e66\uff0c\u8d85\u5343\u4eba\u901a\u8fc7\u6b64\u4e66\u5b66\u4e60\u5e76\u8f6c\u884c\u6210\u529f\u3002\u73b0\u5728\u5c06\u8fd9\u672c\u7535\u5b50\u4e66\u514d\u8d39\u5206\u4eab\u7ed9\u5927\u5bb6\uff0c\u5e0c\u671b\u5bf9\u4f60\u4eec\u6709\u5e2e\u52a9\uff1a<\/p>\n<p>\u7535\u5b50\u4e66\u94fe\u63a5\uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=gyr6irao%2Brh2FMDs11G1PQ%3D%3D.rTS%2Fuqhdp%2B3ovanvWHKSvvnUUVVBMT9gPPZeUx1nxr0N2eGLlUq9%2Fwuowo%2FhSHal\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">https:\/\/www.lxlinux.net\/1024.html<\/a><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"392\" height=\"836\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdfebd\" alt=\"\" title=\"\"><\/p>\n<h2>2. LCD1602\u4ecb\u7ecd<\/h2>\n<h3>2.1 \u578b\u53f7\u4ecb\u7ecd<\/h3>\n<p>LCD\uff0c\u6db2\u6676\u663e\u793a\u6a21\u5757\u5177\u6709\u4f53\u79ef\u5c0f\u3001\u529f\u8017\u4f4e\u3001\u663e\u793a\u5185\u5bb9\u4e30\u5bcc\u7b49\u7279\u70b9\uff0c\u73b0\u5728\u5b57\u7b26\u578b\u6db2\u6676\u663e\u793a\u6a21\u5757\u5df2\u7ecf\u662f\u5355\u7247\u673a\u5e94\u7528\u8bbe\u8ba1\u4e2d\u6700\u5e38\u7528\u7684\u4fe1\u606f\u663e\u793a\u5668\u4ef6\u4e86\u3002<\/p>\n<p>\u6709\u5f88\u591a\u79cd\u578b\u53f7\u7684 LCD\u3002<\/p>\n<ul>\n<li>\u6839\u636e\u663e\u793a\u5b57\u7b26\uff1a1602\uff0816\u52172\u884c\uff09\u30012004\uff0820\u52174\u884c\uff09\u300112864\uff08128\u521764\u884c\uff09\u3002<\/li>\n<li>\u6839\u636e\u5c4f\u5e55\u989c\u8272\uff1a\u84dd\u5c4f\uff08\u767d\u5b57\uff09\u3001\u9ec4\u7eff\u5c4f\uff08\u9ed1\u5b57\/\u767d\u5b57\uff09\u3001\u7070\u5c4f\uff08\u9ed1\u5b57\uff09\u3002<\/li>\n<li>\u6839\u636e\u5de5\u4f5c\u7535\u538b\uff1a5V\u30013.3V\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u4e09\u79cd\u5206\u7c7b\u7ed3\u679c\uff0c\u6392\u5217\u7ec4\u5408\uff0c\u5c31\u6210\u4e3a\u4e86\u6211\u4eec\u5728\u6a59\u8272\u8f6f\u4ef6\u4e0a\u770b\u5230\u7684\uff0c\u773c\u82b1\u7f2d\u4e71\u7684\u578b\u53f7\u9009\u62e9\u3002<\/p>\n<p><img decoding=\"async\" width=\"723\" height=\"352\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdfLOl\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u5f53\u7136\uff0c\u6211\u4eec\u4eca\u5929\u7684\u4e3b\u89d2\u662f LCD1602\u3002\u987a\u5e26\u4e00\u63d0\uff0c\u6211\u7684\u662f\u9ec4\u7eff\u5c4f\uff08\u9ed1\u5b57\uff095V\u3002<\/p>\n<p><img decoding=\"async\" width=\"723\" height=\"408\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdfLOm\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h3>2.2 \u5de5\u4f5c\u53c2\u6570\u53ca\u5f15\u811a\u4ecb\u7ecd<\/h3>\n<p>\u5de5\u4f5c\u53c2\u6570\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u5de5\u4f5c\u7535\u538b\uff1a5V<\/li>\n<li>\u5de5\u4f5c\u7535\u6d41\uff1a2.0mA<\/li>\n<li>\u5de5\u4f5c\u6e29\u5ea6\uff1a-20\u00b0C ~ +70\u00b0C<\/li>\n<li>\u8bbe\u5907\u5bff\u547d\uff1a&gt;100,000\u5c0f\u65f6<\/li>\n<\/ul>\n<p>\u5f15\u811a\u63a5\u7ebf\u53c2\u8003\u5982\u4e0b\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th align=\"center\">LCD1602<\/th>\n<th align=\"center\">STM32<\/th>\n<th align=\"center\">\u8bf4\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td align=\"center\">GND<\/td>\n<td align=\"center\">GND<\/td>\n<td align=\"center\">\u63a5\u5730<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">VDD<\/td>\n<td align=\"center\">5V<\/td>\n<td align=\"center\">\u7535\u6e90\u6b63\u6781<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">V0<\/td>\n<td align=\"center\">0-5V<\/td>\n<td align=\"center\">\u6db2\u6676\u9a71\u52a8\u7535\u538b<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">RS<\/td>\n<td align=\"center\">\u4efb\u610fGPIO\u53e3<\/td>\n<td align=\"center\">\u5bc4\u5b58\u5668\u9009\u62e9\uff1a<br \/>1\uff1a\u6570\u636e\u5bc4\u5b58\u5668&lt;br\/&gt;0\uff1a\u6307\u4ee4\u5bc4\u5b58\u5668<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">RW<\/td>\n<td align=\"center\">\u4efb\u610fGPIO\u53e3<\/td>\n<td align=\"center\">\u8bfb\u3001\u5199\u64cd\u4f5c\u9009\u62e9\uff1a<br \/>1\uff1a\u8bfb&lt;br\/&gt;0\uff1a \u5199<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">E<\/td>\n<td align=\"center\">\u4efb\u610fGPIO\u53e3<\/td>\n<td align=\"center\">\u4f7f\u80fd\u4fe1\u53f7<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">D0<\/td>\n<td align=\"center\">\u4efb\u610fGPIO\u53e3<\/td>\n<td align=\"center\">\u53cc\u5411\u6570\u636e<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">D1<\/td>\n<td align=\"center\">\u4efb\u610fGPIO\u53e3<\/td>\n<td align=\"center\">\u53cc\u5411\u6570\u636e<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">D2<\/td>\n<td align=\"center\">\u4efb\u610fGPIO\u53e3<\/td>\n<td align=\"center\">\u53cc\u5411\u6570\u636e<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">D3<\/td>\n<td align=\"center\">\u4efb\u610fGPIO\u53e3<\/td>\n<td align=\"center\">\u53cc\u5411\u6570\u636e<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">D4<\/td>\n<td align=\"center\">\u4efb\u610fGPIO\u53e3<\/td>\n<td align=\"center\">\u53cc\u5411\u6570\u636e<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">D5<\/td>\n<td align=\"center\">\u4efb\u610fGPIO\u53e3<\/td>\n<td align=\"center\">\u53cc\u5411\u6570\u636e<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">D6<\/td>\n<td align=\"center\">\u4efb\u610fGPIO\u53e3<\/td>\n<td align=\"center\">\u53cc\u5411\u6570\u636e<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">D7<\/td>\n<td align=\"center\">\u4efb\u610fGPIO\u53e3<\/td>\n<td align=\"center\">\u53cc\u5411\u6570\u636e<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">BLA<\/td>\n<td align=\"center\">5V<\/td>\n<td align=\"center\">\u80cc\u5149\u6b63\u6781<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">BLK<\/td>\n<td align=\"center\">GND<\/td>\n<td align=\"center\">\u80cc\u5149\u8d1f\u6781<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5f15\u811a\u6ce8\u89e3\uff1a<\/p>\n<ul>\n<li>V0\uff1a\u6db2\u54c1\u663e\u793a\u5668\u5bf9\u6bd4\u5ea6\u8c03\u6574\u7aef\uff0c\u63a5\u6b63\u7535\u6e90\u65f6\u5bf9\u6bd4\u5ea6\u6700\u9ad8\uff0c\u63a5\u5730\u65f6\u5bf9\u6bd4\u5ea6\u6700\u4f4e\uff0c\u5bf9\u6bd4\u5ea6\u8fc7\u9ad8\u65f6\u4f1a\u4ea7<br \/>\u751f\u201c\u9b3c\u5f71\u201d\uff0c\u4f7f\u7528\u65f6\u53ef\u4ee5\u901a\u8fc7\u7535\u4f4d\u5668\u6216\u7535\u963b\u8c03\u6574\u5bf9\u6bd4\u5ea6\u3002\u7535\u963b\u5c0f\u4e86\u5168\u662f\u9ed1\u5757\uff0c\u7535\u963b\u5927\u4e86\u4e0d\u663e\u793a\u3002<\/li>\n<li>\n<p>RW\uff1a\u8bfb\u5199\u4fe1\u53f7\u7ebf\uff0c\u9ad8\u7535\u5e73\u65f6\u8fdb\u884c\u8bfb\u64cd\u4f5c\uff0c\u4f4e\u7535\u5e73\u65f6\u8fdb\u884c\u5199\u64cd\u4f5c\u3002<\/p>\n<p>\u5f53 RS \u548c RW \u5171\u540c\u4e3a\u4f4e\u7535\u5e73\u65f6\u53ef\u4ee5\u5199\u5165\u6307\u4ee4\u6210\u8005\u663e\u793a\u5730\u5740\uff1b<\/p>\n<p>\u5f53 RS \u4e3a\u4f4e\u7535\u5e73\uff0cRW \u4e3a\u9ad8\u7535\u5e73\u65f6\u53ef\u4ee5\u8bfb\u5fd9\u4fe1\u53f7\uff1b<\/p>\n<p>\u5f53 RS \u4e3a\u9ad8\u7535\u5e73\uff0cRW \u4e3a\u4f4e\u7535\u5e73\u65f6\u53ef\u4ee5\u5199\u5165\u6570\u636e\u3002<\/p>\n<\/li>\n<li>E\uff1a\u4f7f\u80fd\u7aef\uff0c\u5f53E\u7aef\u7531\u9ad8\u7535\u5e73\u8df3\u53d8\u6210\u4f4e\u7535\u5e73\u65f6\uff0c\u6db2\u6676\u6a21\u5757\u6267\u884c\u547d\u4ee4\u3002<\/li>\n<\/ul>\n<h2>3. LCD1602\u539f\u7406<\/h2>\n<h3>3.1 LCD1602\u6307\u4ee4<\/h3>\n<p>LCD1602 \u7684\u8bfb\u5199\u64cd\u4f5c\u3001\u5c4f\u5e55\u548c\u5149\u6807\u7684\u64cd\u4f5c\u90fd\u662f\u901a\u8fc7\u6307\u4ee4\u7f16\u7a0b\u6765\u5b9e\u73b0\u7684\u3002<\/p>\n<p>LCD1602 \u5185\u90e8\u7684\u63a7\u5236\u5668\u5171\u670911\u6761\u63a7\u5236\u6307\u4ee4\uff0c\u5982\u8868\u6240\u793a\uff1a <\/p>\n<p><img decoding=\"async\" width=\"723\" height=\"587\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdfLOn\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u6307\u4ee41\uff1a\u6e05\u663e\u793a\uff0c\u6307\u4ee4\u7801 01H\uff0c\u5149\u6807\u590d\u4f4d\u5230\u5730\u5740 00H \u4f4d\u7f6e\u3002<\/p>\n<p>\u6307\u4ee42\uff1a\u5149\u6807\u590d\u4f4d\uff0c\u5149\u6807\u8fd4\u56de\u5230\u5730\u574000H\u3002<\/p>\n<p>\u6307\u4ee43\uff1aI\/D\uff1a\u5149\u6807\u548c\u663e\u793a\u6a21\u5f0f\u8bbe\u7f6e\uff0c\u5149\u6807\u79fb\u52a8\u65b9\u5411\uff0c\u9ad8\u7535\u5e73\u53f3\u79fb\uff0c\u4f4e\u7535\u5e73\u5de6\u79fb\uff1b<\/p>\n<p>\u200b        S\uff1a\u5c4f\u5e55\u4e0a\u6240\u6709\u6587\u5b57\u662f\u5426\u5de6\u79fb\u6216\u8005\u53f3\u79fb\u3002\u9ad8\u7535\u5e73\u8868\u793a\u6709\u6548\uff0c\u4f4e\u7535\u5e73\u5219\u65e0\u6548\u3002<\/p>\n<p>\u6307\u4ee44\uff1a\u663e\u793a\u5f00\u5173\u63a7\u5236\u3002<\/p>\n<p>\u200b        D\uff1a\u63a7\u5236\u6574\u4f53\u663e\u793a\u7684\u5f00\u4e0e\u5173\uff0c\u9ad8\u7535\u5e73\u8868\u793a\u5f00\u663e\u793a\uff0c\u4f4e\u7535\u5e73\u8868\u793a\u5173\u663e\u793a\uff1b<\/p>\n<p>\u200b        C\uff1a\u63a7\u5236\u5149\u6807\u7684\u5f00\u4e0e\u5173\uff0c\u9ad8\u7535\u5e73\u8868\u793a\u6709\u5149\u6807\uff0c\u4f4e\u7535\u5e73\u8868\u793a\u65e0\u5149\u6807\uff1b<\/p>\n<p>\u200b        B\uff1a\u63a7\u5236\u5149\u6807\u662f\u5426\u95ea\u70c1\uff0c\u9ad8\u7535\u5e73\u95ea\u70c1\uff0c\u4f4e\u7535\u5e73\u4e0d\u95ea\u70c1\u3002<\/p>\n<p>\u6307\u4ee45\uff1aS\/C\uff1a\u9ad8\u7535\u5e73\u65f6\u79fb\u52a8\u663e\u793a\u7684\u6587\u5b57\uff0c\u4f4e\u7535\u5e73\u65f6\u79fb\u52a8\u5149\u6807\uff1b<\/p>\n<p>\u200b        R\/L\uff1a\u9ad8\u7535\u5e73\u65f6\u53f3\u79fb\uff0c\u4f4e\u7535\u5e73\u65f6\u5de6\u79fb\u3002<\/p>\n<p>\u6307\u4ee46\uff1a\u529f\u80fd\u8bbe\u7f6e\u547d\u4ee4 DL\uff1a\u9ad8\u7535\u5e73\u65f6\u4e3a4\u4f4d\u603b\u7ebf\uff0c\u4f4e\u7535\u5e73\u65f6\u4e3a8\u4f4d\u603b\u7ebf\uff1b<\/p>\n<p>\u200b        N\uff1a\u4f4e\u7535\u5e73\u65f6\u4e3a\u5355\u884c\u663e\u793a\uff0c\u9ad8\u7535\u5e73\u65f6\u53cc\u884c\u663e\u793a\uff1b<\/p>\n<p>\u200b        F\uff1a\u4f4e\u7535\u5e73\u65f6\u663e\u793a5&#215;7\u7684\u70b9\u9635\u5b57\u7b26\uff0c\u9ad8\u7535\u5e73\u65f6\u663e\u793a5&#215;10\u7684\u70b9\u9635\u5b57\u7b26\u3002<\/p>\n<p>\u6307\u4ee47\uff1a\u5b57\u7b26\u53d1\u751f\u5668RAM\u5730\u5740\u8bbe\u7f6e\u3002<\/p>\n<p>\u6307\u4ee48\uff1aDDRAM\u5730\u5740\u8bbe\u7f6e\u3002<\/p>\n<p>\u6307\u4ee49\uff1a\u8bfb\u5fd9\u4fe1\u53f7\u548c\u5149\u6807\u5730\u5740\uff0cBF\uff1a\u4e3a\u5fd9\u6807\u5fd7\u4f4d\uff0c\u9ad8\u7535\u5e73\u8868\u793a\u5fd9\uff0c\u6b64\u65f6\u6a21\u5757\u4e0d\u80fd\u63a5\u6536\u547d\u4ee4\u6216\u8005\u6570\u636e\uff0c\u5982\u679c\u4e3a\u4f4e\u7535\u5e73\u8868\u793a\u4e0d\u5fd9\u3002<\/p>\n<p>\u6307\u4ee410\uff1a\u5199\u6570\u636e\u3002<\/p>\n<p>\u6307\u4ee411\uff1a\u8bfb\u6570\u636e\u3002<\/p>\n<h3>3.2 \u57fa\u672c\u64cd\u4f5c\u65f6\u5e8f<\/h3>\n<p>LCD1602 \u7684\u57fa\u672c\u7684\u64cd\u4f5c\u5206\u4e3a\u4ee5\u4e0b\u56db\u79cd\uff1a <\/p>\n<p>\u72b6\u6001\u5b57\u8bfb\u64cd\u4f5c\uff1a\u8f93\u5165 RS=0\u3001RW=1\u3001E=1\uff1b\u8f93\u51fa\uff1aD0~7 \u8bfb\u51fa\u4e3a\u72b6\u6001\u5b57\uff1b<\/p>\n<p>\u6570\u636e\u8bfb\u51fa\u64cd\u4f5c\uff1a\u8f93\u5165 RS=1\u3001RW=1\u3001E=1\uff1b\u8f93\u51fa\uff1aD0~7 \u8bfb\u51fa\u4e3a\u6570\u636e\uff1b <\/p>\n<p>\u6307\u4ee4\u5199\u5165\u64cd\u4f5c\uff1a\u8f93\u5165 RS=0\u3001RW=0\u3001E=\u4e0a\u5347\u6cbf\uff1b \u8f93\u51fa\uff1a\u65e0\uff1b <\/p>\n<p>\u6570\u636e\u5199\u5165\u64cd\u4f5c\uff1a\u8f93\u5165 RS=1\u3001RW=0\u3001E=\u4e0a\u5347\u6cbf\uff1b \u8f93\u51fa\uff1a\u65e0\u3002<\/p>\n<ul>\n<li>\u8bfb\u64cd\u4f5c\u7684\u65f6\u5e8f\u56fe\u5982\u4e0b\uff1a<\/li>\n<\/ul>\n<p><img decoding=\"async\" width=\"723\" height=\"353\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdfLOo\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u5f53\u6211\u4eec\u8981<strong>\u5199\u6307\u4ee4<\/strong>\u7684\u65f6\u5019\uff0cRS \u7f6e\u4e3a\u4f4e\u7535\u5e73\uff0cRW \u7f6e\u4e3a\u4f4e\u7535\u5e73\uff0cE \u7f6e\u4e3a\u4f4e\u7535\u5e73\uff0c\u7136\u540e\u5c06\u6307\u4ee4\u6570\u636e\u9001\u5230\u6570\u636e\u53e3 D0~D7\uff0c\u5ef6\u65f6 tsp1\uff0c\u8ba9 LCD1602 \u51c6\u5907\u63a5\u6536\u6570\u636e\uff0c\u8fd9\u65f6\u5019\u5c06 E \u62c9\u9ad8\uff0c\u4ea7\u751f\u4e00\u4e2a\u4e0a\u5347\u6cbf\uff0c\u8fd9\u65f6\u5019<strong>\u6307\u4ee4<\/strong>\u5c31\u5f00\u59cb\u5199\u5165 LCD1602\uff0c\u5ef6\u65f6\u4e00\u6bb5\u65f6\u95f4\uff0c\u5c06 E \u7f6e\u4e3a\u4f4e\u7535\u5e73\u3002<\/p>\n<ul>\n<li>\u5199\u64cd\u4f5c\u7684\u65f6\u5e8f\u56fe\u5982\u4e0b\uff1a<\/li>\n<\/ul>\n<p><img decoding=\"async\" width=\"723\" height=\"332\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdfLOp\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u5f53\u6211\u4eec\u8981<strong>\u5199\u6570\u636e<\/strong>\u7684\u65f6\u5019\uff0cRS \u7f6e\u4e3a\u9ad8\u7535\u5e73\uff0cRW \u7f6e\u4e3a\u4f4e\u7535\u5e73\uff0cE \u7f6e\u4e3a\u4f4e\u7535\u5e73\uff0c\u7136\u540e\u5c06\u6307\u4ee4\u6570\u636e\u9001\u5230\u6570\u636e\u53e3 D0~D7\uff0c\u5ef6\u65f6 tsp1\uff0c\u8ba9 LCD1602 \u51c6\u5907\u63a5\u6536\u6570\u636e\uff0c\u8fd9\u65f6\u5019\u5c06 E \u62c9\u9ad8\uff0c\u4ea7\u751f\u4e00\u4e2a\u4e0a\u5347\u6cbf\uff0c\u8fd9\u65f6\u5019<strong>\u6570\u636e<\/strong>\u5c31\u5f00\u59cb\u5199\u5165 LCD1602\uff0c\u5ef6\u65f6\u4e00\u6bb5\u65f6\u95f4\uff0c\u5c06 E \u7f6e\u4e3a\u4f4e\u7535\u5e73\u3002<\/p>\n<p>\u5bf9\u6bd4\u4e00\u4e0b\u53ef\u4ee5\u53d1\u73b0\uff0c\u5199\u6307\u4ee4\u548c\u5199\u6570\u636e\u5728\u65f6\u5e8f\u4e0a\u53ea\u662f RS \u7684\u4e0d\u540c\uff0c<strong>\u5199\u6307\u4ee4 RS=0\uff0c\u5199\u6570\u636e RS=1<\/strong>\u3002<\/p>\n<p>\u65f6\u5e8f\u65f6\u95f4\u53c2\u6570\u5982\u4e0b\u8868\uff1a<\/p>\n<p><img decoding=\"async\" width=\"723\" height=\"257\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdfLOq\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h3>3.3 LCD1602\u663e\u5b58\u5730\u5740<\/h3>\n<p>LCD1602 \u7684\u63a7\u5236\u5668\u5185\u7f6e\u6709 80 \u4e2a byte \u7684\u663e\u5b58\uff0c\u800c LCD1602 \u53ea\u6709\u4e24\u884c \u00d7 16 \u4e2a\u5b57\u7b26\u7684\u663e\u793a\u533a\u57df\uff0c\u6240\u4ee5 \u663e\u5b58\u4e2d\u6709\u4e9b\u5730\u5740\u662f\u65e0\u6cd5\u5bf9\u5e94\u4e0a LCD \u5c4f\u7684\uff0c\u4e0b\u56fe\u4e3a\u663e\u5b58\u5730\u5740\u5bf9\u5e94\u56fe\uff1a<\/p>\n<p><img decoding=\"async\" width=\"723\" height=\"262\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdfLOr\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u5199\u5165\u663e\u793a\u5730\u5740\u65f6\u8981\u6c42\u6700\u9ad8\u4f4d D7 \u4e3a\u9ad8\u7535\u5e73\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u5982\u679c\u60f3\u4f60\u60f3<\/p>\n<p>\u5199\u5165\u7b2c\u4e00\u884c\u7b2c\u4e00\u4e2a\u5b57\u7b26\u5e94\u8be5\u662f\uff1a<\/p>\n<p>00000000B\uff0800H\uff09+ 10000000B(80H) = 10000000B(80H)\u3002<\/p>\n<p>\u5199\u5165\u7b2c\u4e8c\u884c\u7b2c\u4e00\u4e2a\u5b57\u7b26\u5e94\u8be5\u662f\uff1a<\/p>\n<p>01000000B\uff0840H\uff09+ 10000000B(80H) = 11000000B(C0H)\u3002<\/p>\n<h3>3.4 LCD1602\u5b57\u7b26\u8868<\/h3>\n<p>\u5728 LCD1602 \u7684\u63a7\u5236 IC \u5f53\u4e2d\uff0c\u5b57\u7b26\u5e93\u4e2d 0x00~0x0F \u672a\u5b9a\u4e49\uff0c\u7559\u7ed9\u4f7f\u7528\u8005\u7684\u81ea\u5b9a\u4e49\u5b57\u7b26\u4f7f\u7528\u3002\u4f46\u53ea\u80fd\u4f7f\u7528 0x00~0x07 \u6216\u8005 0x08~0x0F \u4e4b\u4e00\u3002<\/p>\n<p>\u5b57\u7b26\u8868\u5982\u4e0b\uff0c\u548c ASCII \u7801\u76f8\u4f3c\u3002<\/p>\n<p><img decoding=\"async\" width=\"653\" height=\"764\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdfLOs\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h3>3.5 LCD1602\u521d\u59cb\u5316<\/h3>\n<p>LCD1602 \u521d\u59cb\u5316\u6d41\u7a0b\u56fe\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" width=\"381\" height=\"810\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdfLOt\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h2>5. \u7f16\u7a0b\u5b9e\u6218<\/h2>\n<p>\u73b0\u5728\u6211\u4eec\u5c31\u52a8\u624b\uff0c\u8ba9 LCD1602 \u5c45\u4e2d\u663e\u793a\u4e00\u4e2a\u300cpeace and love\u300d\u548c\u300cLX handsome\u300d\u3002\u6bcf\u79d2\u53f3\u79fb\u4e00\u4f4d\uff0c\u79fb\u5b8c\u540e\u518d\u6b21\u5c45\u4e2d\u663e\u793a\u300cpeace and love\u300d\u548c\u300cLX handsome\u300d\u3002<\/p>\n<h3>5.1 \u786c\u4ef6\u63a5\u7ebf<\/h3>\n<p>\u672c\u6559\u7a0b\u4f7f\u7528\u7684\u786c\u4ef6\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u5355\u7247\u673a\uff1aSTM32F103C8T6<\/li>\n<li>\u663e\u793a\u5c4f\uff1aLCD1602<\/li>\n<li>\u7535\u963b\uff1a\u7535\u4f4d\u5668<\/li>\n<li>\u70e7\u5f55\u5668\uff1aST-LINK V2<\/li>\n<\/ul>\n<p>\u63a5\u7ebf\u5982\u4e0b\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th align=\"center\">LCD1602<\/th>\n<th align=\"center\">STM32<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td align=\"center\">GND<\/td>\n<td align=\"center\">GND<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">VDD<\/td>\n<td align=\"center\">5V<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">V0<\/td>\n<td align=\"center\">GND<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">RS<\/td>\n<td align=\"center\">B1<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">RW<\/td>\n<td align=\"center\">B2<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">E<\/td>\n<td align=\"center\">B10<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">D0<\/td>\n<td align=\"center\">A0<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">D1<\/td>\n<td align=\"center\">A1<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">D2<\/td>\n<td align=\"center\">A2<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">D3<\/td>\n<td align=\"center\">A3<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">D4<\/td>\n<td align=\"center\">A4<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">D5<\/td>\n<td align=\"center\">A5<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">D6<\/td>\n<td align=\"center\">A6<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">D7<\/td>\n<td align=\"center\">A7<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">BLA<\/td>\n<td align=\"center\">3.3<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">BLK<\/td>\n<td align=\"center\">GND<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u70e7\u5f55\u7684\u65f6\u5019\u63a5\u7ebf\u5982\u4e0b\u8868\uff0c\u5982\u679c\u4e0d\u4f1a\u70e7\u5f55\u7684\u8bdd\u53ef\u4ee5\u770b\u6211\u4e4b\u524d\u7684\u6587\u7ae0\u3010<a href=\"https:\/\/segmentfault.com\/a\/https\uff1a\/\/www.lxlinux.net\/e\/stm32\/five-ways-to-flash-program-to-stm32.html\" target=\"_blank\" rel=\"noopener noreferrer\">STM32\u4e0b\u8f7d\u7a0b\u5e8f\u7684\u4e94\u79cd\u65b9\u6cd5<\/a>\u3011\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th align=\"center\">ST-Link V2<\/th>\n<th align=\"center\">STM32<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td align=\"center\">SWCLK<\/td>\n<td align=\"center\">SWCLK<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">SWDIO<\/td>\n<td align=\"center\">SWDIO<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">GND<\/td>\n<td align=\"center\">GND<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">3.3V<\/td>\n<td align=\"center\">3V3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u63a5\u597d\u5982\u4e0b\u56fe\uff1a<\/p>\n<p>V0 \u9700\u8981\u63a5\u4e00\u4e2a 5k\u03a9 \u5de6\u53f3\u7684\u7535\u963b\u624d\u80fd\u6b63\u5e38\u663e\u793a\uff0c\u8fd9\u91cc\u6211\u7528\u7684\u662f\u7535\u4f4d\u5668\u3002\u624b\u4e0a\u6ca1\u6709\u7535\u4f4d\u5668\u6216\u8005\u7535\u963b\u7684\u5c0f\u4f19\u4f34\u53ef\u4ee5\u4fa7\u7740\u770b\uff0c\u4e0a\u4e0b\u5de6\u53f3\u4fa7\u7740\u770b\uff0c\u4e5f\u662f\u53ef\u4ee5\u770b\u5230\u663e\u793a\u7684\u5b57\u7b26\u7684\u3002<\/p>\n<p><img decoding=\"async\" width=\"723\" height=\"506\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdfLOu\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h3>5.2 \u5f15\u811a\u521d\u59cb\u5316<\/h3>\n<p>\u5c06\u6211\u4eec\u8981\u7528\u5230\u7684\u5f15\u811a\u90fd\u8fdb\u884c\u4e00\u4e2a\u521d\u59cb\u5316\u3002<\/p>\n<pre><code class=\"c\">void lcd_gpio_init(void)\n{\n  GPIO_InitTypeDef GPIO_InitStruct = {0};\n\n  \/* GPIO Ports Clock Enable *\/\n  \/\/__HAL_RCC_GPIOD_CLK_ENABLE();\n  __HAL_RCC_GPIOA_CLK_ENABLE();\n  __HAL_RCC_GPIOB_CLK_ENABLE();\n\n  \/*Configure GPIO pin Output Level *\/\n  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3\n                          |GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7, GPIO_PIN_SET);\n\n  \/*Configure GPIO pin Output Level *\/\n  HAL_GPIO_WritePin(GPIOB, GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_10, GPIO_PIN_SET);\n\n  \/*Configure GPIO pins : PA0 PA1 PA2 PA3\n                           PA4 PA5 PA6 PA7 *\/\n  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3\n                          |GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;\n  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;\n  GPIO_InitStruct.Pull = GPIO_NOPULL;\n  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;\n  HAL_GPIO_Init(GPIOA, &amp;GPIO_InitStruct);\n\n  \/*Configure GPIO pins : PB1 PB2 PB10 *\/\n  GPIO_InitStruct.Pin = GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_10;\n  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;\n  GPIO_InitStruct.Pull = GPIO_NOPULL;\n  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;\n  HAL_GPIO_Init(GPIOB, &amp;GPIO_InitStruct);\n}<\/code><\/pre>\n<h3>5.3 \u5199\u6307\u4ee4<\/h3>\n<p>\u6839\u636e\u6211\u4eec\u524d\u9762\u8bb2\u7684\u65f6\u5e8f\uff0c\u5199\u6307\u4ee4\uff1aRS\u3001RW\u3001E \u7f6e\u4e3a\u4f4e\u7535\u5e73\uff0c\u6307\u4ee4\u6570\u636e\u4f20\u8f93\uff0c\u5ef6\u65f6\uff0c\u5c06 E \u62c9\u9ad8\uff0c\u5ef6\u65f6\uff0c\u5c06 E \u62c9\u4f4e\u3002<\/p>\n<pre><code class=\"c\">void write_cmd(char cmd)\n{\n    RS_LOW;\n    RW_LOW;\n    EN_LOW;\n    GPIOA-&gt;ODR = cmd;       \/\/\u5c06\u4e00\u5b57\u8282\u6570\u636e\u53d1\u5230GPIOA 8\u4e2a\u5f15\u811a\n    HAL_Delay(5);\n    EN_HIGH;\n    HAL_Delay(5);\n    EN_LOW;\n}<\/code><\/pre>\n<h3>5.4 \u5199\u6570\u636e<\/h3>\n<p>\u6839\u636e\u6211\u4eec\u524d\u9762\u8bb2\u7684\u65f6\u5e8f\uff0c\u5199\u6570\u636e\uff1aRS \u7f6e\u4e3a\u9ad8\u7535\u5e73\uff0cRW\u3001E \u7f6e\u4e3a\u4f4e\u7535\u5e73\uff0c\u6307\u4ee4\u6570\u636e\u4f20\u8f93\uff0c\u5ef6\u65f6\uff0c\u5c06 E \u62c9\u9ad8\uff0c\u5ef6\u65f6\uff0c\u5c06 E \u62c9\u4f4e\u3002<\/p>\n<pre><code class=\"c\">void write_data(char dataShow)\n{\n    RS_HIGH;\n    RW_LOW;\n    EN_LOW;\n    GPIOA-&gt;ODR = dataShow;   \/\/\u5c06\u4e00\u5b57\u8282\u6570\u636e\u53d1\u5230GPIOA 8\u4e2a\u5f15\u811a\n    HAL_Delay(5);\n    EN_HIGH;\n    HAL_Delay(5);\n    EN_LOW;\n}<\/code><\/pre>\n<h3>5.5 LCD1602\u521d\u59cb\u5316<\/h3>\n<p>\u6309\u7167\u521d\u59cb\u5316\u6d41\u7a0b\u56fe\u5199\u4ee3\u7801\uff0c\u68c0\u6d4b\u5fd9\u4fe1\u53f7\u53ef\u7701\u7565\u3002<\/p>\n<pre><code class=\"c\">void lcd_init()\n{\n\/\/\uff081\uff09\u5ef6\u65f6 15ms\n    HAL_Delay(15);\n\/\/\uff082\uff09\u5199\u6307\u4ee4 38H(\u4e0d\u68c0\u6d4b\u5fd9\u4fe1\u53f7) \n    write_cmd(0x38);\n\/\/\uff083\uff09\u5ef6\u65f6 5ms\n    HAL_Delay(5);\n\/\/\uff084\uff09\u68c0\u6d4b\u5fd9\u4fe1\u53f7(\u7701\u7565)\n\/\/\uff085\uff09\u5199\u6307\u4ee4 38H\uff1a\u663e\u793a\u6a21\u5f0f\u8bbe\u7f6e\n    write_cmd(0x38);\n\/\/\uff086\uff09\u5199\u6307\u4ee4 08H\uff1a\u663e\u793a\u5173\u95ed\n    write_cmd(0x08);\n\/\/\uff087\uff09\u5199\u6307\u4ee4 01H\uff1a\u663e\u793a\u6e05\u5c4f\n    write_cmd(0x01);\n\/\/\uff088\uff09\u5199\u6307\u4ee4 06H\uff1a\u663e\u793a\u5149\u6807\u79fb\u52a8\u8bbe\u7f6e\n    write_cmd(0x06);\n\/\/\uff089\uff09\u5199\u6307\u4ee4 0CH\uff1a\u663e\u793a\u5f00\u53ca\u5149\u6807\u8bbe\u7f6e\n    write_cmd(0x0c);\n}<\/code><\/pre>\n<h3>5.5 \u663e\u793a\u5b57\u7b26<\/h3>\n<p>\u6839\u636e\u6211\u4eec\u524d\u9762\u8bf4\u7684\u663e\u5b58\u5730\u5740\uff0c\u5c06\u6570\u636e\u4e00\u4e2a\u4e2a\u663e\u793a\u5230 LCD1602\u3002<\/p>\n<p>row: \u663e\u793a\u884c\uff0ccol\uff1a \u663e\u793a\u8d77\u59cb\u5217\uff0cstring\uff1a\u663e\u793a\u5b57\u7b26\u3002\u7531\u4e8e\u6211\u4eec\u524d\u9762\u5f97\u51fa LCD1602 \u5b57\u7b26\u8868\u548c ACSII \u7801\u5dee\u4e0d\u591a\uff0c\u6240\u4ee5\u76f4\u63a5\u4f20\u53c2\u5373\u53ef\u3002<\/p>\n<pre><code class=\"c\">void lcd_show_line(char row, char col, char *string)\n{\n    switch(row){\n    case 1:\n        write_cmd(0x80+col);        \/\/\u6700\u9ad8\u4f4d D7 \u4e3a\u9ad8\u7535\u5e73\n        while(*string){\n            write_data(*string);\n            string++;\n        }\n        break;\n    \n    case 2:\n        write_cmd(0x80+0x40+col);\n        while(*string){\n            write_data(*string);\n            string++;\n        }\n        break;\n    }\n}<\/code><\/pre>\n<h3>5.6 \u753b\u9762\u79fb\u52a8<\/h3>\n<p>\u5229\u7528\u5199\u6307\u4ee4\uff0c0x18\uff0c\u753b\u9762\u53f3\u79fb\u4e00\u4f4d\uff1b0x1C\uff0c\u753b\u9762\u5de6\u79fb\u4e00\u4f4d\u3002<\/p>\n<pre><code class=\"c\">void lcd_right_move(void)\n{\n    for(int i=0;i &lt; 16;i++){\n        HAL_Delay(1000);\n        write_cmd(0x18);            \/\/\u753b\u9762\u53f3\u79fb\u4e00\u4f4d 0x18\n    }\n}<\/code><\/pre>\n<h3>5.6 \u4e3b\u51fd\u6570<\/h3>\n<pre><code class=\"c\">int main(void)\n{\n    HAL_Init();                         \/* \u521d\u59cb\u5316HAL\u5e93 *\/\n    sys_stm32_clock_init(RCC_PLL_MUL9); \/* \u8bbe\u7f6e\u65f6\u949f, 72Mhz *\/\n    delay_init(72);                     \/* \u5ef6\u65f6\u521d\u59cb\u5316 *\/\n    lcd_gpio_init();                    \/* lcd\u521d\u59cb\u5316 *\/\n\n    while(1)\n    {\n        lcd_start();\n        lcd_show_line(1,1,&quot;peace and love&quot;);\n        lcd_show_line(2,2,&quot;LX handsome&quot;);\n        lcd_move();\n    }\n}<\/code><\/pre>\n<h3>5.6 \u8fd0\u884c\u6548\u679c<\/h3>\n<p>\u6211\u7528\u7684\u662f\u6211\u81ea\u5df1\u6253\u7684\u677f\u5b50\uff0c\u4e0a\u5b98\u4e8c\u53f7\u3002\u5927\u5bb6\u53ef\u4ee5\u7528\u81ea\u5df1\u7684\u677f\u5b50\uff0c\u662f STM32F103C8T6 \u5c31\u884c\u3002<\/p>\n<p>\u663e\u793a\u300cpeace and love\u300d\u548c\u300cLX handsome\u300d\u3002<\/p>\n<p><img decoding=\"async\" width=\"723\" height=\"558\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdfLOv\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u6bcf\u79d2\u53f3\u79fb\u4e00\u4f4d\uff0c\u79fb\u5b8c\u540e\u518d\u6b21\u5c45\u4e2d\u663e\u793a\u300cpeace and love\u300d\u548c\u300cLX handsome\u300d\u3002<\/p>\n<p><img decoding=\"async\" width=\"723\" height=\"535\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdfLOw\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h2>8. \u603b\u7ed3<\/h2>\n<p>\u5728\u5c06\u6765\u7684\u9879\u76ee\u4e2d\uff0c\u60a8\u53ef\u4ee5\u5c1d\u8bd5\u5229\u7528 LED1602 \u8fdb\u884c\u66f4\u591a\u7684\u5b9e\u8df5\u548c\u521b\u65b0\u3002\u901a\u8fc7\u8fdb\u4e00\u6b65\u63a2\u7d22\u548c\u5b66\u4e60\uff0c\u60a8\u53ef\u4ee5\u4e86\u89e3\u66f4\u591a\u9ad8\u7ea7\u529f\u80fd\u548c\u6269\u5c55\u9009\u9879\uff0c\u4ee5\u6ee1\u8db3\u7279\u5b9a\u9879\u76ee\u7684\u9700\u6c42\u3002<\/p>\n<h2>\u5e0c\u671b\u672c\u6587\u5bf9\u60a8\u5bf9\u4e8e LCD1602 \u7684\u7406\u89e3\u548c\u5e94\u7528\u6709\u6240\u5e2e\u52a9\u3002\u611f\u8c22\u5404\u4f4d\u770b\u5b98\uff0cpeace and love\uff01<\/h2>\n<p><strong>\u53e6\u5916\uff0c\u60f3\u8fdb\u5927\u5382\u7684\u540c\u5b66\uff0c\u4e00\u5b9a\u8981\u597d\u597d\u5b66\u7b97\u6cd5\uff0c\u8fd9\u662f\u9762\u8bd5\u5fc5\u5907\u7684\u3002\u8fd9\u91cc\u51c6\u5907\u4e86\u4e00\u4efd BAT \u5927\u4f6c\u603b\u7ed3\u7684 LeetCode \u5237\u9898\u5b9d\u5178\uff0c\u5f88\u591a\u4eba\u9760\u5b83\u4eec\u8fdb\u4e86\u5927\u5382\u3002<\/strong><\/p>\n<p><img decoding=\"async\" width=\"286\" height=\"83\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdaCCY\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><a href=\"https:\/\/link.segmentfault.com\/?enc=rhvBsdI2JVbjwNCFIFTqgQ%3D%3D.T6ydx%2BgCweKRiuBYgAXJQi3YgKBoD6fK35wloDGQjjbwgN7%2BhyThlDy%2B9o4n0smt\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">\u5237\u9898 | LeetCode\u7b97\u6cd5\u5237\u9898\u795e\u5668\uff0c\u770b\u5b8c BAT \u968f\u4f60\u6311\uff01<\/a><\/p>\n<h3>\u6709\u6536\u83b7\uff1f\u5e0c\u671b\u8001\u94c1\u4eec\u6765\u4e2a\u4e09\u8fde\u51fb\uff0c\u7ed9\u66f4\u591a\u7684\u4eba\u770b\u5230\u8fd9\u7bc7\u6587\u7ae0<\/h3>\n<p><strong>\u63a8\u8350\u9605\u8bfb\uff1a<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=okjlvjbnoK2n6Y0CtMam6g%3D%3D.vTi%2BgqLwXfLhFfeP2ZbSeGcFvFlVIGiqG0uHkzIobb4SKc8XxRDzBz29e0qCb1yT\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">\u7a0b\u5e8f\u5458\u5fc5\u5907\u7f16\u7a0b\u8d44\u6599\u5927\u5168<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=Gdag2mX3WFCeYZuOTyzYgw%3D%3D.Or3P0XmWKK1qEblaVlLTjmAmTgNjg%2FfXIRIqjnFnFjI6eOWdP5KrIWsxkiuzwApA\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">\u7a0b\u5e8f\u5458\u5fc5\u5907\u8f6f\u4ef6\u8d44\u6e90<\/a><\/li>\n<\/ul>\n<p>\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u535a\u5ba2\uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=xbID0nbfs0FCxI2wAKZNNw%3D%3D.FtRhHquQIHH4bapgZ0G0a9hKEwxEFTEq3xfQW9CfEWQ%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">\u826f\u8bb8\u5d4c\u5165\u5f0f\u6559\u7a0b\u7f51<\/a>\uff0c\u6ee1\u6ee1\u90fd\u662f\u5e72\u8d27\uff01<\/p>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000045665379\">https:\/\/segmentfault.com\/a\/1190000045665379<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>LCD1602\uff08 Liquid Crystal Display 1602\uff09\uff0c\u4e00\u79cd\u5e38\u89c1\u7684\u5b57\u7b26\u578b\u6db2\u6676\u663e\u793a\u6a21\u5757\u3002\u867d\u7136 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10020529","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10020529","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10020529"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10020529\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10020529"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10020529"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10020529"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}