{"id":95,"date":"2026-05-22T01:18:01","date_gmt":"2026-05-21T17:18:01","guid":{"rendered":"https:\/\/xlweb.icu\/?p=95"},"modified":"2026-05-22T01:20:47","modified_gmt":"2026-05-21T17:20:47","slug":"%e8%93%9d%e6%a1%a5%e6%9d%af%e5%8d%95%e7%89%87%e6%9c%ba%e4%b8%b2%e5%8f%a3%e6%94%b6%e5%8f%91","status":"publish","type":"post","link":"https:\/\/xlweb.icu\/index.php\/2026\/05\/22\/%e8%93%9d%e6%a1%a5%e6%9d%af%e5%8d%95%e7%89%87%e6%9c%ba%e4%b8%b2%e5%8f%a3%e6%94%b6%e5%8f%91\/","title":{"rendered":"\u84dd\u6865\u676f\u5355\u7247\u673a\u4e32\u53e3\u6536\u53d1"},"content":{"rendered":"\n

\u84dd\u6865\u676f\u7684\u4e32\u53e3\u6536\u53d1\u529f\u80fd\u90fd\u79bb\u4e0d\u5f00SBUF\uff0cSBUF\u662f\u5355\u7247\u673a\u5185\u90e8\u7684\u786c\u4ef6\u5bc4\u5b58\u5668\uff0c\u8fd9\u91cc\u5206\u4e3a\u8bfbSBUF(\u4ece\u63a5\u6536\u7f13\u51b2\u533a\u53d6\u8d70\u4e00\u4e2a\u5b57\u8282)\u548c\u5199SBUF(\u5411\u53d1\u9001\u7f13\u51b2\u533a\u91cc\u5199\u4e00\u4e2a\u5b57\u8282)\u3002<\/p>\n\n\n\n


\u7136\u540e\u5c31\u662fputchar\u51fd\u6570\u4e86\uff0c\u91cd\u5199putchar\u51fd\u6570\u5c31\u53ef\u4ee5\u5b9e\u73b0\u4f7f\u7528C\u8bed\u8a00\u4e2d\u5f88\u5b9e\u7528\u7684printf\u51fd\u6570\u8fdb\u884c\u53d1\u9001\u6570\u636e\u4e86\u3002<\/p>\n\n\n\n

extern char putchar(char ch)\n{\n\tSBUF = ch;\n\twhile(TI==0);\n\tTI = 0;\n\treturn ch;\n}<\/code><\/pre>\n\n\n\n
TI\u548cRI\u5206\u522b\u662f\u53d1\u9001\u548c\u63a5\u6536\u6807\u5fd7\u4f4d\uff0c\u5f53\u53d1\u51fa\u6216\u63a5\u6536\u5230\u4e00\u4e2a\u5b57\u8282\u540e \u786c\u4ef6\u81ea\u52a8\u5c06\u8be5\u6807\u5fd7\u4f4d\u7f6e1\uff0c\u8981\u5b9e\u73b0\u591a\u5b57\u8282\u7684\u6536\u53d1 \u9700\u8981\u624b\u52a8\u628a\u6807\u5fd7\u4f4d\u6e05\u96f6\u3002


\u4e2a\u4eba\u89c9\u5f97\u4e32\u53e3\u96be\u70b9\u5728\u4e8e\u4e32\u53e3\u7684\u63a5\u6536\u89e3\u6790\uff0c\u7ec8\u7aef\u8bbe\u5907\u901a\u8fc7\u4e32\u53e3\u52a9\u624b\u5411\u5355\u7247\u673a\u53d1\u51fa\u6570\u636e\u4e4b\u540e\uff0c\u5355\u7247\u673a\u8981\u60f3\u6b63\u786e\u89e3\u6790\u4fe1\u606f\u5e76\u505a\u51fa\u76f8\u5e94\u6267\u884c\u529f\u80fd\uff0c\u5c31\u9700\u8981\u89e3\u6790\u8fd9\u4e2a\u6570\u636e\u3002\u56e0\u6b64\u5c31\u7528\u5230\u4e86\u8bfbSBUF\u5bc4\u5b58\u5668\u3002
\u9996\u5148\u5148\u4e86\u89e3\u53d1\u9001\u7684\u534f\u8bae\u89c4\u5219\uff0c\u4ee5\u4e0b\u662f\u7b2c\u5341\u4e03\u5c4a\u84dd\u6865\u676f\u7701\u8d5b\u771f\u9898\u3002<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u901a\u8fc7\u5206\u6790\u9898\u76ee\u53ef\u77e5 \u8981\u63a5\u6536\u7684\u547d\u4ee4\u683c\u5f0f\u662f#\u8bbe\u5907\u5730\u5740?   \u56e0\u6b64\u8fd9\u91cc\u5e27\u5934\u5c31\u662f#  \u5e27\u5c3e\u662f? \u4e2d\u95f4\u7684\u4e09\u4f4d\u6570\u5b57\u5c31\u662f\u6570\u636e\u5e27\u3002\u4ee5\u4e0b\u662f\u89e3\u6790\u4ee3\u7801\u3002<\/p>\n\n\n\n
void Uart1_Isr(void) interrupt 4\n{\n\tif (RI)\t\t\t\t\/\/\u68c0\u6d4b\u4e32\u53e31\u63a5\u6536\u4e2d\u65ad\n\t{\n\t\t\n\t\tRI = 0;\t\t\t\/\/\u6e05\u9664\u4e32\u53e31\u63a5\u6536\u4e2d\u65ad\u8bf7\u6c42\u4f4d\n\t\t\/\/Receive_Buf[Receive_index] = SBUF;\n\t\tif(SBUF == '#')\/\/\u8bc6\u522b\u5230\u5e27\u5934\n\t\t{\n\t\t\tReceive_index = 0;\n\t\t}\n\t\telse if(SBUF == '?')\/\/\u8bc6\u522b\u636e\u5e27\u5c3e\n\t\t{\n\t\t\tReceive_Buf[Receive_index] = '\\0';\n\t\t\tReceive_flag = 1;\n\t\t}\n\t\telse{\/\/\u5e27\u5934\u5e27\u5c3e\u4e4b\u95f4\u7684\u6570\u636e\u5e27\n\t\t\tReceive_Buf[Receive_index++] = SBUF;\n\t\t}\n\t}\n}\n<\/code><\/pre>\n\n\n\n
\u9996\u5148\u901a\u8fc7 \u8bfbSBUF\u8bc6\u522b\u5230\u547d\u4ee4\u7684\u5e27\u5934’#’,\u8bc6\u522b\u5230\u4e4b\u540e\uff0c\u5c06\u63a5\u6536\u6570\u7ec4\u7684\u4e0b\u6807\u8bbe\u4e3a0\uff0c\u4e4b\u540e\u4e0b\u6807\u81ea\u589e1\uff0c\u5e76\u5224\u65ad\u8bfbSBUF\u662f\u5426\u662f\u5e27\u5c3e ‘?’ \uff0c\u5982\u679c\u662f\u5e27\u5c3e\u7684\u8bdd\uff0c\u5c31\u8bbe\u7f6e\u6b64\u4e0b\u6807\u7684\u6570\u7ec4\u6570\u636e\u4e3a’\\0’\uff0c\u4ee3\u8868\u5b57\u7b26\u4e32\u7684\u7ed3\u675f\uff0c\u5e76\u8bbe\u7f6e\u63a5\u6536\u6807\u5fd7\u4f4dReceive_flag  =1\uff0c\u4ee3\u8868\u6b64\u6b21\u89e3\u6790\u5b8c\u6210\u3002\u5982\u679c\u65e2\u4e0d\u662f\u5e27\u5934\u6216\u5e27\u5c3e\u7684\u8bdd\u90a3\u4e48\u5c31\u662f\u6570\u636e\u5e27\u3002\u6d41\u7a0b\u5176\u5b9e\u5c31\u662f\u5148\u8bc6\u522b\u5230\u5e27\u5934\uff0c\u7136\u540e\u4f9d\u6b21\u5b58\u5165\u6570\u636e\u5e27\uff0c\u76f4\u5230\u8bc6\u522b\u5230\u6570\u636e\u5e27\u5c3e\u3002

\u89e3\u6790\u5b8c\u6210\u4e4b\u540e\u6211\u4eec\u5c31\u8981\u5224\u65ad\u63a5\u6536\u6570\u7ec4\u4e2d\u7684\u6570\u636e\u662f\u5426\u662f\u8ddf\u9898\u76ee\u8981\u6c42\u7684\u4e00\u6837\u3002
<\/p>\n\n\n\n
void Uart_Proc()\n{\n\tunsigned char recv_addr = 0;\n\t\n\tif(Receive_flag == 0)return;\n\tReceive_flag = 0;\n\trecv_addr = (Receive_Buf[0] - '0')*100 + (Receive_Buf[1] - '0')*10 + (Receive_Buf[2] - '0');\n\t\n\tif(recv_addr == device_addr)\n\t{\n\t\tprintf(\"%.1fkPa@%02d:%02d\",(float)(pressure\/10.0),(int)RTC_buf[0],(int)RTC_buf[1]);\n\t}\n\t\n}<\/code><\/pre>\n\n\n\n
\u8fd9\u91cc\u5224\u65ad\u4e32\u53e3\u4e2d\u65ad\u51fd\u6570\u4e2d\u662f\u5426\u5b8c\u6210\u63a5\u6536\uff0c\u4e5f\u5c31\u662f\u5224\u65adReceive_flag \u6807\u5fd7\u4f4d\u662f\u5426\u4e3a1\uff0c\u4e3a1\u4ee3\u8868\u63a5\u6536\u5230\u4e86\u7b26\u5408\u9898\u76ee\u8981\u6c42\u7684\u6570\u636e\uff0c\u4e4b\u540e\u5c31\u8981\u8fdb\u884c\u6570\u636e\u68c0\u9a8c\u3002\u4e32\u53e3\u91cc\u7684\u6570\u5b57\u4e0d\u80fd\u76f4\u63a5\u8fdb\u884c\u5224\u65ad\uff0c\u56e0\u4e3a\u4ed6\u662f\u5b57\u7b26\u4e32\uff0c\u56e0\u6b64\u5c31\u8981\u60f3\u5230ASCII \u7801\uff0c\u5047\u5982\u6211\u60f3\u6b63\u786e\u628a\u5b57\u7b26’5’\u8f6c\u6362\u6210\u6570\u5b575 \u9700\u8981\u51cf\u53bb’0’\uff0c\u5bf9\u5e94ASCII\u7801\u5c31\u662f  ‘5’ – ‘0’ = 53 – 48 = 5\u3002
\u7136\u540e\u5c31\u5f00\u59cb\u62fc\u6570\u5b57\uff0c\u9898\u76ee\u91cc\u662f\u4e09\u4f4d\u6570\uff0c\u56e0\u6b64\u628a\u89e3\u6790\u5230\u7684(\u5b57\u7b26\u767e\u4f4d\u6570\u5b57-‘0’) * 100 + (\u5b57\u7b26\u5341\u4f4d\u6570\u5b57-‘0’)  *10 + \u5b57\u7b26\u4e2a\u4f4d\u6570\u5b57 – ‘0’\u3002\u5c06\u76f8\u52a0\u7684\u503c\u5b58\u5230\u53d8\u91cf\u4e2d\u5224\u65ad\u662f\u5426\u548c\u8bbe\u7f6e\u7684\u8bbe\u5907\u5730\u5740\u76f8\u540c\uff0c\u5982\u679c\u76f8\u540c\u5c31\u6309\u7167\u9898\u76ee\u8981\u6c42\u8f93\u51fa “\u538b\u529b\u503ckPa@\u65f6\u95f4”\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u84dd\u6865\u676f\u7684\u4e32\u53e3\u6536\u53d1\u529f\u80fd\u90fd\u79bb\u4e0d\u5f00SBUF\uff0cSBUF\u662f\u5355\u7247\u673a\u5185\u90e8\u7684\u786c\u4ef6\u5bc4\u5b58\u5668\uff0c\u8fd9\u91cc\u5206\u4e3a\u8bfbSBUF(\u4ece\u63a5\u6536\u7f13\u51b2\u533a\u53d6\u8d70\u4e00 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-95","post","type-post","status-publish","format-standard","hentry","category-article"],"_links":{"self":[{"href":"https:\/\/xlweb.icu\/index.php\/wp-json\/wp\/v2\/posts\/95","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xlweb.icu\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xlweb.icu\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xlweb.icu\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xlweb.icu\/index.php\/wp-json\/wp\/v2\/comments?post=95"}],"version-history":[{"count":1,"href":"https:\/\/xlweb.icu\/index.php\/wp-json\/wp\/v2\/posts\/95\/revisions"}],"predecessor-version":[{"id":98,"href":"https:\/\/xlweb.icu\/index.php\/wp-json\/wp\/v2\/posts\/95\/revisions\/98"}],"wp:attachment":[{"href":"https:\/\/xlweb.icu\/index.php\/wp-json\/wp\/v2\/media?parent=95"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xlweb.icu\/index.php\/wp-json\/wp\/v2\/categories?post=95"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xlweb.icu\/index.php\/wp-json\/wp\/v2\/tags?post=95"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}