{"id":3120,"date":"2020-06-23T10:14:25","date_gmt":"2020-06-23T10:14:25","guid":{"rendered":""},"modified":"2020-06-23T18:14:56","modified_gmt":"2020-06-23T10:14:56","slug":"%e4%bb%8b%e7%bb%8d%e5%9f%ba%e4%ba%8eml302%e5%bc%80%e5%8f%91%e6%9d%bfsim%e5%8d%a1%e6%8e%a5%e5%8f%a3%e4%bd%8d%e7%bd%ae%e5%88%86%e5%b8%83","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=3120","title":{"rendered":"\u4ecb\u7ecd\u57fa\u4e8eML302\u5f00\u53d1\u677fSIM\u5361\u63a5\u53e3\u4f4d\u7f6e\u5206\u5e03"},"content":{"rendered":"
\n\t ML302\u5f00\u53d1\u677f\u63a5\u53e3<\/u>\u603b\u89c8<\/p>\n
\n\t\u6b64\u6b3e\u5f00\u53d1\u677f\u7684\u63a5\u53e3\u4e3b\u8981\u4e3b\u8981\u5305\u62ec\u7535\u6e90\u3001UART<\/u>\u3001SIM\u3001USB<\/u>\u3001\u5929\u7ebf\u53e3\u7b49\uff0c\u4e3b\u8981\u63a5\u53e3\u4f4d\u7f6e\u5df2\u5728\u56fe\u4e2d\u6807\u51fa\u3002<\/p>\n
\n\t\u7535\u6e90\u63a5\u53e3<\/p>\n
\n\t<\/p>\n
\n\tML302\u5f00\u53d1\u677f\u63a8\u8350\u7535\u6e90<\/p>\n
\n\tML302\u5f00\u53d1\u677f\u5904\u9884\u7559\u7684\u7535\u6e90\u63a5\u53e3\u4e3a\u5706\u5b543.5mm\u6bcd\u5934\u63a5\u53e3\uff0c\u5f00\u53d1\u677f\u9700\u8981\u7684\u4f9b\u7535\u7535\u538b\u4e3a5V\uff0c\u5efa\u8bae\u4f9b\u7535\u80fd\u529b\u81f3\u5c111A\u4ee5\u4e0a\uff0c\u63a8\u8350\u4f7f\u7528\u6210\u54c1\u5f00\u5173\u7535\u6e90\u3002<\/p>\n
\n\tSIM\u5361\u63a5\u53e3<\/p>\n
\n\t<\/p>\n
\n\tML302\u5f00\u53d1\u677fSIM\u5361\u63a5\u53e3\u4f4d\u7f6e\u5206\u5e03<\/p>\n
\n\tML302\u63d0\u4f9b\u4e86\u4e09\u5f20SIM\u5361\u63a5\u53e3\uff0c\u5206\u522b\u662f\u5361\u7247\u5f0f\u8d34\u7247\u5361\u30015*6mm\u82af\u7247\u5361\u30012*2mm\u82af\u7247\u5361\uff0c\u7528\u6237\u53ef\u6839\u636e\u5b9e\u9645\u9700\u8981\u9009\u62e9\uff0c\u4e09\u5904SIM\u5361\u63a5\u53e3\u4e0d\u53ef\u540c\u65f6\u4f7f\u7528\uff0c\u53ea\u80fd\u9009\u62e9\u4e00\u79cd\u65b9\u5f0f\u63a5\u5361\uff0c\u5426\u5219\u6a21\u7ec4\u5c06\u65e0\u6cd5\u8bc6\u522bSIM\u5361\u3002<\/p>\n
\n\t\u540c\u65f6\u6a21\u7ec4\u652f\u6301\u5c062*2mm\u82af\u7247\u5361\u8d34\u5728ML302\u5185\u90e8\uff08\u9ed8\u8ba4\u6a21\u7ec4\u5185\u90e8\u65e0SIM\u5361\uff09\uff0c\u540c\u6837\u6a21\u7ec4\u5185\u90e8\u8d34\u4e86\u82af\u7247\u5f0fSIM\u5361\u540e\uff0c\u5916\u90e8SIM\u5361\u5f15\u811a\u5e94\u60ac\u7a7a\uff0c\u4e0d\u53ef\u518d\u63a5SIM\u5361\u3002<\/p>\n
\n\t<\/p>\n
\n\tML302\u6a21\u7ec4\u63a8\u8350SIM\u5361\u7535\u8def<\/u>\u8bbe\u8ba1<\/p>\n
\n\t<\/p>\n
\n\t\u6a21\u7ec4\u6b63\u5e38\u5de5\u4f5c\u65f6\u70ed\u63d2\u62d4SIM\u5361\u5904\u7406\u6d41\u7a0b\uff08\u5de6\uff1a\u624b\u52a8\u5165\u7f51\u6a21\u5f0f\uff0c\u53f3\uff1a\u81ea\u52a8\u5165\u7f51\u6a21\u5f0f\uff09<\/p>\n
\n\tML302\u652f\u6301SIM\u5361\u7684\u70ed\u63d2\u62d4\u529f\u80fd\uff0c\u7528\u6237\u5728\u81ea\u884c\u8bbe\u8ba1ML302\u7684SIM\u5361\u7535\u8def\u65f6\uff0c\u5982\u679c\u8981\u4f7f\u7528SIM\u5361\u7684\u70ed\u63d2\u62d4\u529f\u80fd\uff0c\u9700\u8981\u5c06UISIM_DET\u5f15\u811a\u63a5\u4e0a\uff0c\u5916\u63a5SIM\u5361\u63a8\u8350\u7535\u8def\u56fe\u89c1\u56fe4\uff0c\u56fe\u4e2d\u7535\u963b<\/u>\u653e\u7f6e\u65f6\u5168\u90e8\u9760\u8fd1\u6a21\u7ec4\u4e00\u4fa7\u3002\u6a21\u7ec4\u6b63\u5e38\u5de5\u4f5c\u4e2d\u63d2\u62d4\u4e00\u6b21SIM\u5361\u6a21\u7ec4\u7684\u53cd\u9988\u4fe1\u606f\u3001\u72b6\u6001\u548c\u9700\u8981\u8fdb\u884c\u7684\u64cd\u4f5c\u89c1\u56fe5.<\/p>\n
\n\tUART\u63a5\u53e3<\/p>\n
\n\tML302\u6a21\u7ec4\u5f00\u53d1\u677f\u63d0\u4f9b\u4e86\u4e09\u8defUART \u901a\u4fe1\u63a5\u53e3\uff0c\u6700\u5927\u4f20\u8f93\u901f\u7387\u4e3a961200bps\uff0c\u5176\u4e2d UART0 \u63a5\u53e3\u4e3a 4 \u7ebf\u4e32\u53e3\uff0c\u7528\u4f5cAT\u6307\u4ee4\u63a5\u53e3\uff0c\u4e0e\u5916\u754c\u8fdb\u884c\u4e32\u884c\u901a\u4fe1\uff1bUART1 \u63a5\u53e3\u4e3a2\u7ebf\u4e32\u53e3\uff0c\u7528\u4f5c\u6253\u5370LOG \u63a5\u53e3\uff1bUART2 \u7528\u4f5c\u4e0eGNSS\u5b9a\u4f4d\u82af\u7247\u901a\u4fe1\u3002<\/p>\n
\n\t ML302\u5f00\u53d1\u677f\u4e0e\u5916\u63a5\u63a7\u5236\u5668\u6216\u8005USB\u8f6cTTL\u5bf9\u63a5\u793a\u610f\u56fe<\/p>\n
\n\tUART\u7684\u4e3b\u8981\u7279\u6027\u6709\uff1a<\/p>\n
\n\to \u5168\u53cc\u5de5\uff1b<\/p>\n
\n\to \u6807\u51c6\u5f02\u6b65\u901a\u8baf\u683c\u5f0f\uff08\u8d77\u59cb\u4f4d\u3001\u505c\u6b62\u4f4d\u3001\u6821\u9a8c\u4f4d\uff09\uff1b<\/p>\n
\n\to \u652f\u6301 8 bit \u6570\u636e\u4f4d\u548c 1\/2 bit \u505c\u6b62\u4f4d\uff08\u8be6\u60c5\u53c2\u8003 AT \u547d\u4ee4\u7528\u6237\u4f7f\u7528\u624b\u518c\uff09\uff1b<\/p>\n
\n\to \u652f\u6301\u5947\u3001 \u5076\u3001 \u65e0\u6821\u9a8c\u4f4d\uff081 bit \u505c\u6b62\u4f4d\uff09\uff1b<\/p>\n
\n\to \u6a21\u7ec4\u9ed8\u8ba4\u4e3a\u81ea\u9002\u5e94\u6ce2\u7279\u7387\uff0c\u652f\u63012400bps\uff0c4800bps\uff0c9600bps\uff0c14400bps\uff0c19200bps\uff0c28800bps\uff0c33600bps\uff0c38400bps\uff0c57600bps\uff0c115200bps\uff1b<\/p>\n
\n\to \u6a21\u7ec4\u4e32\u53e3\u7535\u5e73\u4e3a 1.8V\uff0c\u5e94\u7528\u65f6\u6ce8\u610f\u7535\u5e73\u662f\u5426\u5339\u914d\uff1b<\/p>\n
\n\to UART0_RTS\u4e0eUART0_CTS \u53ef\u4e0d\u7528\uff0c\u76f4\u63a5\u60ac\u7a7a\u3002<\/p>\n
\n\t<\/p>\n
\n\t ML302\u5f00\u53d1\u677f\u4e0aUART\u63a5\u53e3\u4f4d\u7f6e<\/p>\n
\n\t\u4e3a\u5f00\u53d1\u677fUART\u5173\u8054\u63a5\u53e3\u4f4d\u7f6e\u3002<\/p>\n
\n\tML302\u5f00\u53d1\u677f\u4e0aUART\u63a5\u53e3\u8bf4\u660e\uff1a<\/p>\n
\n\to \u56fe\u4e2d\u2462\u4e3aUART0\u7684\u63a5\u53e3\uff0c\u7528\u6765\u6536\u53d1AT\u6307\u4ee4\uff0c\u53ef\u901a\u8fc7USB\u8f6cTTL\u63a5PC\uff0c\u901a\u8fc7\u4e32\u53e3\u52a9\u624b\u63a7\u5236\u6a21\u7ec4\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u675c\u90a6\u7ebf\u5c06MCU<\/u>\u4e0eUART0\u53e3\u8fde\u63a5\uff0c\u4f7f\u7528MCU\u63a7\u5236\uff0cUART0_RTS\u4e0eUART0_CTS \u53ef\u4e0d\u7528\uff0c\u76f4\u63a5\u60ac\u7a7a\u5373\u53ef\uff1b<\/p>\n
\n\to \u56fe\u4e2d\u2463\u662fUART1\u53e3\uff0c\u7528\u6765\u6253\u5370\u6a21\u7ec4\u7684log\uff1b<\/p>\n
\n\to \u56fe\u4e2d\u2464\u662fUART2\u53e3\uff0c\u7528\u6765\u63a5GNSS\u82af\u7247\uff1b<\/p>\n
\n\to \u56fe\u4e2d\u2460\u662fML302\u5f00\u53d1\u677f\u4e0a\u7684\u4e32\u53e3\u82af\u7247\u7684\u4f9b\u7535\u5f00\u5173\uff0c\u4f7f\u7528\u4e32\u53e3\u65f6\u8981\u7528\u8df3\u7ebf<\/u>\u5e3d\u77ed\u63a5\uff1b<\/p>\n
\n\to \u56fe\u4e2d\u2461\u662f\u63a7\u5236\u4e32\u53e3\u82af\u7247\u7684\u8f93\u51fa\u7535\u5e73\uff0c\u5f53UART\u4e0a\u5916\u63a5\u63a7\u5236\u5668\u6216\u8005USB\u8f6cTTL\u7684\u7535\u5e73\u4e3a1.8V\u65f6\uff0c\u63a5A\u548cB\uff1b\u5916\u63a5\u63a7\u5236\u5668\u6216\u8005USB\u8f6cTTL\u7684\u7535\u5e73\u4e3a3.3V\u65f6\u63a5B\u548cC\uff1b<\/p>\n
\n\to \u4f7f\u7528UART\u65f6\u5171\u63a53\u6839\u7ebf\uff0cTX\u3001RX\u548cGND\u3002<\/p>\n
\n\t\u5c0f\u7ed3<\/p>\n
\n\to ML302\u5f00\u53d1\u677f\u7684\u4f9b\u7535\u8bbe\u5907\u63a8\u8350\u4f7f\u75285V\/2A 3.5mm\u63a5\u53e3\u7684\u5f00\u5173\u7535\u6e90<\/u>\uff1b<\/p>\n
\n\to SIM\u5361\u6d4b\u8bd5<\/u>\u65f6\u53ef\u4ee5\u9009\u7528\u63d2\u7247\u5f0f\u76844G\u7269\u8054\u7f51\u5361\u6216\u80054G\u624b\u673a\u5361\uff0c\u540c\u65f6\u53ea\u5141\u8bb8\u63a5\u4e00\u5f20SIM\u5361\uff1b<\/p>\n
\n\to UART\u53e3\u5728\u4f7f\u7528\u65f6\u8981\u628a\u5f00\u53d1\u677f\u4e0a\u7684\u4e32\u53e3\u82af\u7247\u4f9b\u7535\u63a5\u53e3VDD3V3_EXT\u77ed\u63a5\uff0c\u7535\u5e73\u9009\u62e9\u8981\u5339\u914d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
ML302\u5f00\u53d1\u677f \u63a5\u53e3 \u603b\u89c8 \u6b64\u6b3e\u5f00\u53d1\u677f\u7684\u63a5\u53e3\u4e3b\u8981\u4e3b\u8981\u5305\u62ec\u7535\u6e90\u3001 UART \u3001SIM\u3001 USB \u3001\u5929\u7ebf\u53e3\u7b49\uff0c\u4e3b\u8981\u63a5\u53e3\u4f4d\u7f6e\u5df2\u5728\u56fe\u4e2d\u6807\u51fa\u3002 \u7535\u6e90\u63a5\u53e3 ML302\u5f00\u53d1\u677f\u63a8\u8350\u7535\u6e90 ML302\u5f00\u53d1\u677f\u5904\u9884\u7559\u7684\u7535\u6e90\u63a5\u53e3\u4e3a\u5706<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"_links":{"self":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/3120"}],"collection":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3120"}],"version-history":[{"count":0,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/3120\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3120"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3120"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}