{"id":120,"date":"2010-05-25T00:39:57","date_gmt":"2010-05-24T16:39:57","guid":{"rendered":"http:\/\/nick.workao.org\/?p=120"},"modified":"2010-05-25T00:39:57","modified_gmt":"2010-05-24T16:39:57","slug":"at89s52-%e4%b8%ad%e6%96%ad%e4%bc%98%e5%85%88%e7%ba%a7%e8%ae%be%e7%bd%ae","status":"publish","type":"post","link":"http:\/\/nick.txtcc.com\/index.php\/scm\/120","title":{"rendered":"AT89S52 \u4e2d\u65ad\u4f18\u5148\u7ea7\u8bbe\u7f6e"},"content":{"rendered":"<p>void Openint(void)\u00a0\u00a0 \/\/\u6253\u5f00\u4e2d\u65ad\n{\nEA=1;\/\/\u5f00\u4e2d\u65ad\nIT0=1; \/\/\u5916\u90e8\u4e2d\u65ad0\u4e0b\u964d\u6cbf\u89e6\u53d1\nIT1=1; \/\/\u5916\u90e8\u4e2d\u65ad1\u4e0b\u964d\u6cbf\u89e6\u53d1\nEX0=1;\/\/\u5916\u90e8\u4e2d\u65ad0\nEX1=1;\/\/\u5916\u90e8\u4e2d\u65ad1\nET0=1;\/\/\u5f00timer0\u4e2d\u65ad\nES=0;\/\/\u5f00\u4e32\u53e3\u4e2d\u65ad<\/p>\n<p>}<\/p>\n<p>void IntGradeSet(void)\u00a0 \/\/\u8bbe\u7f6e\u4f18\u5148\u7ea7\n{\nPS=0;\u00a0\u00a0 \u00a0\u00a0 \/\/\u4e32\u53e3\u4f18\u5148\u7ea7\nPT0=0;\u00a0 \/\/timer0\u4e2d\u65ad\u4f18\u5148\u7ea7\nPT1=0;\u00a0 \/\/timer1\u4e2d\u65ad\u4f18\u5148\u7ea7\nPX0=0;\u00a0 \/\/int0\u4e2d\u65ad\u4f18\u5148\u7ea7\nPX1=0;\u00a0 \/\/int1\u4e2d\u65ad\u4f18\u5148\u7ea7\n}<\/p>\n<p>void UARTint(void) interrupt 4\u00a0\u00a0 using 3\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \/\/\u4e32\u53e3\u4e2d\u65ad\u5904\u7406\n{\nuchar \u00a0\u00a0\u00a0 receivr_buffer;\n<span style=\"color: #f00000;\">TI=0;<\/span> \/\/\u5f88\u91cd\u8981\uff0c\u5426\u5219\u4f1a\u4e00\u76f4\u8fdb\u4e2d\u65ad\u5904\u7406\u7a0b\u5e8f\u7684\uff01\nEA=0;\nif(RI==1)\n{\nRI=0;\nreceivr_buffer = SBUF;<\/p>\n<p>if (point == 0)\n{\nif (receivr_buffer == 0xa5)\nIDChageRx[point++] = receivr_buffer;\n\/\/point++;\nelse point = 0;\n}<\/p>\n<p>else if (point>0 &#038;&#038; point<4)\nIDChageRx[point++] = receivr_buffer;<\/p>\n<p>else\n{\npoint = 0;\nIDChageRx[0]=0;\nIDChageRx[1]=0;\nIDChageRx[2]=0;\nIDChageRx[3]=0;\n}\n}\nEA=1;\n}<\/p>\n<h1><span> \u6211\u73b0\u5728\u5728\u5f00\u53d1\u4e00\u4e2a\u7cfb\u7edf\uff0c\u7528\u4e86\u4e09\u4e2a\u4e2d\u65ad\uff0c\u6709\u5916\u90e8\u4e2d\u65ad1\uff0c\u5b9a\u65f6\u5668\u4e2d\u65ad0\uff0c\u4e32\u53e3\u4e2d\u65ad\uff0c\u6211\u8bbe\u5b9a  \u4e2d\u65ad\u7684\u4f18\u5148\u7ea7\u662f\uff1a\u5b9a\u65f6\u5668\u4e2d\u65ad\uff0c\u4e32\u53e3\u4e2d\u65ad\uff0c\u5916\u90e8\u4e2d\u65ad\uff0c\u800c\u4e14\u6211\u7684\u4e09\u4e2a\u4e2d\u65ad\u7ecf\u5e38\u53d1\u751f\uff0c\u6709\u53ef\u80fd\u51fa\u73b0\u4e2d\u65ad\u4e09\u7ea7\u5d4c\u5957\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u6b63\u5728\u8fdb\u884c\u5916\u90e8\u4e2d\u65ad1\uff0c\u4e32\u53e3\u4e2d\u65ad\u6765\u4e86\uff0c\u5728  \u8fdb\u884c\u4e32\u53e3\u4e2d\u65ad\u7684\u540c\u65f6\uff0c\u8fd9\u65f6\u5b9a\u65f6\u5668\u4e2d\u65ad\u6765\u4e86\u3002\u8fd9\u6837\u7cfb\u7edf\u8fd0\u884c\u53ef\u9760\u5417\uff1f<\/h1>\n<p>\u6211\u4e5f\u66fe\u505a\u8fc7\u4e00\u4e2a\u4e09\u7ea7\u5d4c\u5957\u7a0b\u5e8f\u3002\u53ea\u4e0d\u8fc7\u6211\u662f\u7528\u5230\u4e24\u4e2a\u5b9a\u65f6\u4e2d\u65ad\u548c\u4e32\u53e3\u4e2d\u65ad\uff0c\u6b63\u5e38\u7684\u4e2d\u65ad\u4f18\u5148\u7ea7 \u4e3a\uff1aINT0>T0>INT1>T0>\u4e32\u53e3\u4e2d\u65ad\u3002\n51\u7cfb\u5217\u53ea\u4e24\u4e2a\u4e2d\u65ad\u4f18\u5148\u7ea7\u3002\u8bbe\u7f6e\u65f6\u5e94\u8be5\u4fdd\u8bc1\uff1a\u9ad8\u4f18\u5148\u7ea7\u4e2d\u65ad\u548c\u4f4e\u4f18\u5148\u7ea7\u4e2d\u65ad\u4e2d\u7684\u82e5\u5e72\u4e2d\u65ad\u4ecd\u8981\u6ee1\u8db3\u4e0a\u5934\u63d0\u5230\u7684\u6b63\u5e38\u60c5\u51b5\u4e0b\u7684\u4f18\u5148\u7ea7\u3002\u5982\uff1a\n\u8981\u5b9e\u73b0\uff1aINT1>T0>\u4e32\u53e3\u4e2d\u65ad\uff0c\u5219\u5e94\u8be5\u8bbe\u7f6e\u5982\u4e0b\nSETB\u00a0PX1\nCLR\u00a0PX0\nCLR\u00a0PT0\nCLR\u00a0PT1\nCLR\u00a0PS(\u4e32\u53e3\u4e2d\u65ad\u4f18\u5148\u7ea7\u8bbe\u7f6e)\n\u4f60\u7684\u610f\u601d\u5e94\u8be5\u662f\u8981\u5b9e\u73b0\uff1aT0>\u4e32\u53e3\u4e2d\u65ad>INT0\n\u5219\u8bbe\u7f6e\u5982\u4e0b\uff1a\nSETB\u00a0PT0\nSETB\u00a0PS\nCLR\u00a0PX0\nCLR\u00a0PX1\nCLR\u00a0PT1\n\u8fd0\u884c\u53ef\u9760\u3002<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>void Openint(void)\u00a0\u00a0 \/\/\u6253\u5f00\u4e2d\u65ad { EA=1;\/\/\u5f00\u4e2d\u65ad IT0=1; \/\/\u5916\u90e8\u4e2d\u65ad0\u4e0b\u964d\u6cbf\u89e6\u53d1 IT1=1; \/\/\u5916\u90e8\u4e2d\u65ad1\u4e0b\u964d\u6cbf\u89e6\u53d1 EX0=1;\/\/\u5916\u90e8\u4e2d\u65ad0 EX1=1&#46;&#46;&#46;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39],"tags":[66,67,46],"class_list":["post-120","post","type-post","status-publish","format-standard","hentry","category-scm","tag-at89s52","tag-67","tag-46"],"_links":{"self":[{"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/posts\/120","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/comments?post=120"}],"version-history":[{"count":1,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/posts\/120\/revisions"}],"predecessor-version":[{"id":121,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/posts\/120\/revisions\/121"}],"wp:attachment":[{"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/media?parent=120"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/categories?post=120"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/tags?post=120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}