{"id":198694,"date":"2024-11-14T22:12:21","date_gmt":"2024-11-14T14:12:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/198694\/"},"modified":"2024-11-14T22:12:22","modified_gmt":"2024-11-14T14:12:22","slug":"c%e8%aa%9e%e8%a8%80%e9%a9%85%e5%8b%95linux%e4%b8%8b%e4%b8%b2%e5%8f%a3%e7%b7%a8%e7%a8%8b%e5%af%a6%e6%88%b0-c%e8%aa%9e%e8%a8%80linux%e4%b8%b2%e5%8f%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/198694\/","title":{"rendered":"C\u8a9e\u8a00\u9a45\u52d5linux\u4e0b\u4e32\u53e3\u7de8\u7a0b\u5be6\u6230 (c\u8a9e\u8a00linux\u4e32\u53e3)"},"content":{"rendered":"<h1 id=\"c%e8%aa%9e%e8%a8%80%e9%a9%85%e5%8b%95linux%e4%b8%8b%e4%b8%b2%e5%8f%a3%e7%b7%a8%e7%a8%8b%e5%af%a6%e6%88%b0-NFlZYPiRAi\">C\u8a9e\u8a00\u9a45\u52d5Linux\u4e0b\u4e32\u53e3\u7de8\u7a0b\u5be6\u6230<\/h1>\n<p>\u5728\u5d4c\u5165\u5f0f\u7cfb\u7d71\u548c\u786c\u9ad4\u63a7\u5236\u4e2d\uff0c\u4e32\u53e3\u901a\u4fe1\u662f\u4e00\u7a2e\u5e38\u898b\u7684\u6578\u64da\u50b3\u8f38\u65b9\u5f0f\u3002Linux\u7cfb\u7d71\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u4e32\u53e3\u7de8\u7a0b\u652f\u6301\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528C\u8a9e\u8a00\u4f86\u5be6\u73fe\u4e32\u53e3\u7684\u8b80\u5beb\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728Linux\u74b0\u5883\u4e0b\u4f7f\u7528C\u8a9e\u8a00\u9032\u884c\u4e32\u53e3\u7de8\u7a0b\uff0c\u4e26\u63d0\u4f9b\u5be6\u969b\u7684\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%b8%b2%e5%8f%a3%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-NFlZYPiRAi\">\u4e32\u53e3\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u4e32\u53e3\uff08Serial Port\uff09\u662f\u4e00\u7a2e\u901a\u8a0a\u63a5\u53e3\uff0c\u901a\u5e38\u7528\u65bc\u9023\u63a5\u8a08\u7b97\u6a5f\u8207\u5916\u90e8\u8a2d\u5099\uff0c\u5982\u50b3\u611f\u5668\u3001\u5fae\u63a7\u5236\u5668\u7b49\u3002\u4e32\u53e3\u901a\u4fe1\u7684\u7279\u9ede\u662f\u6578\u64da\u4ee5\u4e32\u884c\u7684\u65b9\u5f0f\u9010\u4f4d\u50b3\u8f38\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u9577\u8ddd\u96e2\u901a\u4fe1\u4e2d\u5177\u6709\u512a\u52e2\u3002<\/p>\n<h2 id=\"linux%e4%b8%8b%e7%9a%84%e4%b8%b2%e5%8f%a3%e8%a8%ad%e5%82%99-NFlZYPiRAi\">Linux\u4e0b\u7684\u4e32\u53e3\u8a2d\u5099<\/h2>\n<p>\u5728Linux\u7cfb\u7d71\u4e2d\uff0c\u4e32\u53e3\u8a2d\u5099\u901a\u5e38\u4ee5\u6587\u4ef6\u7684\u5f62\u5f0f\u5b58\u5728\u65bc\/dev\u76ee\u9304\u4e0b\u3002\u5e38\u898b\u7684\u4e32\u53e3\u8a2d\u5099\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\/dev\/ttyS0\uff1a\u7b2c\u4e00\u500b\u4e32\u53e3<\/li>\n<li>\/dev\/ttyUSB0\uff1aUSB\u8f49\u4e32\u53e3\u8a2d\u5099<\/li>\n<li>\/dev\/ttyACM0\uff1aArduino\u7b49\u8a2d\u5099<\/li>\n<\/ul>\n<h2 id=\"%e4%b8%b2%e5%8f%a3%e7%b7%a8%e7%a8%8b%e7%9a%84%e6%ad%a5%e9%a9%9f-NFlZYPiRAi\">\u4e32\u53e3\u7de8\u7a0b\u7684\u6b65\u9a5f<\/h2>\n<p>\u5728Linux\u4e0b\u9032\u884c\u4e32\u53e3\u7de8\u7a0b\uff0c\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li>\u6253\u958b\u4e32\u53e3\u8a2d\u5099<\/li>\n<li>\u914d\u7f6e\u4e32\u53e3\u53c3\u6578<\/li>\n<li>\u8b80\u53d6\u548c\u5beb\u5165\u6578\u64da<\/li>\n<li>\u95dc\u9589\u4e32\u53e3\u8a2d\u5099<\/li>\n<\/ol>\n<h2 id=\"%e4%bb%a3%e7%a2%bc%e7%a4%ba%e4%be%8b-NFlZYPiRAi\">\u4ee3\u78bc\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684C\u8a9e\u8a00\u4e32\u53e3\u7de8\u7a0b\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u6253\u958b\u4e32\u53e3\u3001\u914d\u7f6e\u53c3\u6578\u3001\u767c\u9001\u548c\u63a5\u6536\u6578\u64da\u3002<\/p>\n<pre><code>\n#include &lt;stdio.h&gt;\n#include &lt;stdlib.h&gt;\n#include &lt;string.h&gt;\n#include &lt;fcntl.h&gt;\n#include &lt;unistd.h&gt;\n#include &lt;termios.h&gt;\n\nint main() {\n    int fd;\n    struct termios options;\n\n    \/\/ \u6253\u958b\u4e32\u53e3\n    fd = open(\"\/dev\/ttyS0\", O_RDWR | O_NOCTTY | O_NDELAY);\n    if (fd == -1) {\n        perror(\"open_port: Unable to open \/dev\/ttyS0 - \");\n        return -1;\n    }\n\n    \/\/ \u7372\u53d6\u7576\u524d\u4e32\u53e3\u914d\u7f6e\n    tcgetattr(fd, &amp;options);\n    \n    \/\/ \u8a2d\u7f6e\u6ce2\u7279\u7387\n    cfsetispeed(&amp;options, B9600);\n    cfsetospeed(&amp;options, B9600);\n    \n    \/\/ \u8a2d\u7f6e\u6578\u64da\u4f4d\u3001\u505c\u6b62\u4f4d\u548c\u6821\u9a57\u4f4d\n    options.c_cflag &amp;= ~PARENB; \/\/ \u7121\u6821\u9a57\n    options.c_cflag &amp;= ~CSTOPB; \/\/ 1\u500b\u505c\u6b62\u4f4d\n    options.c_cflag &amp;= ~CSIZE;   \/\/ \u6e05\u9664\u6578\u64da\u4f4d\u8a2d\u7f6e\n    options.c_cflag |= CS8;      \/\/ 8\u500b\u6578\u64da\u4f4d\n\n    \/\/ \u8a2d\u7f6e\u4e32\u53e3\u9078\u9805\n    options.c_cflag |= (CLOCAL | CREAD);\n    options.c_iflag &amp;= ~(IXON | IXOFF | IXANY);\n    options.c_lflag &amp;= ~(ICANON | ECHO | ECHOE | ISIG);\n    options.c_oflag &amp;= ~OPOST;\n\n    \/\/ \u61c9\u7528\u8a2d\u7f6e\n    tcsetattr(fd, TCSANOW, &amp;options);\n\n    \/\/ \u767c\u9001\u6578\u64da\n    char *msg = \"Hello, Serial Port!\";\n    write(fd, msg, strlen(msg));\n\n    \/\/ \u63a5\u6536\u6578\u64da\n    char buf[256];\n    int n = read(fd, buf, sizeof(buf));\n    if (n &gt; 0) {\n        buf[n] = ''; \/\/ \u6dfb\u52a0\u5b57\u7b26\u4e32\u7d50\u675f\u7b26\n        printf(\"Received: %sn\", buf);\n    }\n\n    \/\/ \u95dc\u9589\u4e32\u53e3\n    close(fd);\n    return 0;\n}\n<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-NFlZYPiRAi\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u9032\u884c\u4e32\u53e3\u7de8\u7a0b\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u64c1\u6709\u5c0d\u4e32\u53e3\u8a2d\u5099\u7684\u8b80\u5beb\u6b0a\u9650\u3002<\/li>\n<li>\u6839\u64da\u5be6\u969b\u9700\u6c42\u8a2d\u7f6e\u6b63\u78ba\u7684\u6ce2\u7279\u7387\u548c\u6578\u64da\u683c\u5f0f\u3002<\/li>\n<li>\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\uff0c\u5c0d\u4e32\u53e3\u7684\u64cd\u4f5c\u9700\u8981\u52a0\u9396\u4ee5\u907f\u514d\u7af6\u722d\u689d\u4ef6\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-NFlZYPiRAi\">\u7e3d\u7d50<\/h2>\n<p>\u672c\u6587\u4ecb\u7d39\u4e86\u5982\u4f55\u5728Linux\u74b0\u5883\u4e0b\u4f7f\u7528C\u8a9e\u8a00\u9032\u884c\u4e32\u53e3\u7de8\u7a0b\uff0c\u5305\u62ec\u57fa\u672c\u6982\u5ff5\u3001\u7de8\u7a0b\u6b65\u9a5f\u548c\u4ee3\u78bc\u793a\u4f8b\u3002\u4e32\u53e3\u901a\u4fe1\u5728\u8a31\u591a\u61c9\u7528\u4e2d\u90fd\u626e\u6f14\u8457\u91cd\u8981\u89d2\u8272\uff0c\u638c\u63e1\u5176\u7de8\u7a0b\u6280\u5de7\u5c0d\u65bc\u958b\u767c\u5d4c\u5165\u5f0f\u7cfb\u7d71\u548c\u786c\u9ad4\u63a7\u5236\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u4f3a\u670d\u5668\u652f\u6301\u4f86\u9032\u884c\u958b\u767c\uff0c\u8003\u616e\u4f7f\u7528\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u70ba\u60a8\u7684\u9805\u76ee\u63d0\u4f9b\u5f37\u5927\u7684\u5f8c\u7aef\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22C\u8a9e\u8a00\u5728Linux\u4e0b\u7684\u4e32\u53e3\u7de8\u7a0b\u5be6\u6230\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u5730\u64cd\u4f5c\u548c\u7ba1\u7406\u4e32\u53e3\u901a\u4fe1\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-198694","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/198694","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=198694"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/198694\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=198694"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=198694"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=198694"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}