{"id":545,"date":"2012-11-20T02:17:00","date_gmt":"2012-11-19T18:17:00","guid":{"rendered":"http:\/\/www.liuwenhao.me\/?p=545"},"modified":"2021-11-23T13:35:28","modified_gmt":"2021-11-23T05:35:28","slug":"cos-ii%e5%88%9d%e5%ad%a6%e5%bf%83%e5%be%97","status":"publish","type":"post","link":"https:\/\/www.liuwenhao.me\/?p=545","title":{"rendered":"&mu;COS-ii\u521d\u5b66\u5fc3\u5f97"},"content":{"rendered":"<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp; \u03bcC\/OS-II \u662f\u4e00\u4e2a\u6e90\u4ee3\u7801\u516c\u5f00\u3001\u53ef\u79fb\u690d\u3001\u53ef\u88c1\u526a\u7684\u5b9e\u65f6\u591a\u4efb\u52a1\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5177\u6709\u7a33\u5b9a\u53ef\u9760\u3001\u5b9e\u65f6\u6027\u597d\u7b49\u4f18\u70b9\uff0c\u662f\u4e13\u95e8\u9488\u5bf9\u5fae\u5904\u7406\u5668\u548c\u5fae\u63a7\u5236\u5668\u8bbe\u8ba1\u7684\u5b9e\u65f6\u5185\u6838\uff0c\u5b83\u7684\u5185\u6838\u53ef\u4ee5\u505a\u5230\u5f88\u5c0f\uff0c\u5f88\u9002\u5408\u5728\u5355\u7247\u673a\u7cfb\u7edf\u4e0a\u79fb\u690d\u3002\u79fb\u690d\u4e86\u03bcC\/OS-II \u7684\u5d4c\u5165\u5f0f\u7cfb\u7edf\u53ef\u4ee5\u4f7f\u5404\u4e2a\u4efb\u52a1\u72ec\u7acb\u5de5\u4f5c\uff0c\u4e92\u4e0d\u5e72\u6d89\uff0c\u5f88\u5bb9\u6613\u5b9e\u73b0\u51c6\u65f6\u800c\u4e14\u65e0\u8bef\u6267\u884c\uff0c\u4f7f\u5b9e\u65f6\u5e94\u7528\u7a0b\u5e8f\u7684\u8bbe\u8ba1\u548c\u6269\u5c55\u53d8\u5f97\u5bb9\u6613\uff0c\u4f7f\u5e94\u7528\u7a0b\u5e8f\u7684\u8bbe\u8ba1\u8fc7\u7a0b\u5927\u4e3a\u51cf\u5316\u3002\u5728\u8fd9\u4e2a\u661f\u671f\u5185\uff0c\u6211\u901a\u8fc7\u5bf9\u7981\u7528\u4e86\u90ae\u7bb1\u3001\u961f\u5217\u3001\u6587\u4ef6\u7cfb\u7edf\u7684\u6700\u7b80\u5355\u7684\u03bcCOS-ii\u64cd\u4f5c\u7cfb\u7edf\u8fdb\u884c\u4e86\u5b66\u4e60\uff0c\u73b0\u5c06\u6536\u83b7\u5206\u4eab\u5982\u4e0b\u3002<\/span><\/p>\n<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">\u5bfc\u822a\u76ee\u5f55<\/p><ul class=\"toc_list\"><li><a href=\"#COS-ii\">\u03bcCOS-ii\u8fd0\u884c\u8fc7\u7a0b<\/a><ul><li><a href=\"#1\">1 \u7cfb\u7edf\u521d\u59cb\u5316<\/a><\/li><li><a href=\"#2\">2 \u4efb\u52a1\u521b\u5efa<\/a><\/li><li><a href=\"#3\">3 \u4efb\u52a1\u8c03\u5ea6<\/a><\/li><\/ul><\/li><li><a href=\"#COS-ii-2\">\u03bcCOS-ii\u67e5\u627e\u6700\u9ad8\u4f18\u5148\u7ea7\u7b97\u6cd5\u7684\u5b9e\u73b0<\/a><\/li><li><a href=\"#i\">\u4ee3\u7801\u79fb\u690d\u611f\u60f3<\/a><\/li><\/ul><\/div>\n<h1><span id=\"COS-ii\">\u03bcCOS-ii\u8fd0\u884c\u8fc7\u7a0b<\/span><\/h1>\n<p><p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; \u03bcCOS-ii\u7684\u4e3b\u51fd\u6570\u4e0d\u5230\u5341\u884c\u4ee3\u7801\uff0c\u4f46\u662f\u56e0\u4e3a\u5176\u9ad8\u5ea6\u7684\u7ed3\u6784\u5316\u4ee5\u53ca\u826f\u597d\u7684\u51fd\u6570\u5c01\u88c5\uff0c\u5bf9\u5176\u8fd0\u884c\u8fc7\u7a0b\u7684\u4e86\u89e3\u5bf9\u4e8e\u5b66\u4e60\u03bcCOS-ii\u7684\u7f16\u7a0b\u601d\u60f3\u4ee5\u53ca\u8bbe\u8ba1\u601d\u8def\u5177\u6709\u91cd\u5927\u7684\u610f\u4e49\u3002<\/span><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; \u6211\u901a\u8fc7\u5c06\u03bcCOS-ii\u4ee3\u7801\u79fb\u690d\u5230SST89V564RD\u5355\u7247\u673a\u4e2d\uff0c\u5e76\u4e14\u5229\u7528TI\u516c\u53f8\u7684\u6e29\u5ea6\u4f20\u611f\u5668TMP124\u521b\u5efa\u4e86\u4e24\u4e2a\u4efb\u52a1\uff1a\u8bfbTMP122\u6570\u636e\u3001\u5411\u4e32\u53e3\u53d1\u9001\u8bfb\u53d6\u7684\u6e29\u5ea6\u503c\u3002\u8981\u6c42\u4e24\u4e2a\u4efb\u52a1\u8f6e\u6d41\u6267\u884c\uff0c\u8bfbTMP122\u7684\u4f18\u5148\u7ea7\u9ad8\u4e8e\u5411\u4e32\u53e3\u53d1\u9001\u6570\u636e\u7684\u4f18\u5148\u7ea7\u3002<\/span><\/p>\n<p><!--more--><\/p>\n<p style=\"text-align: justify\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;<\/span><\/p>\n<h2><span id=\"1\">1 \u7cfb\u7edf\u521d\u59cb\u5316<\/span><\/h2>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; \u5728\u03bcCOS-ii\u4e2d\uff0c\u7cfb\u7edf\u521d\u59cb\u5316\u53ef\u4ee5\u5206\u4e3a\u5168\u5c40\u53d8\u91cf\u521d\u59cb\u5316\u3001\u521b\u5efa\u7a7a\u95f2\u4efb\u52a1\u4efb\u52a1\u3001\u5806\u6808\u521d\u59cb\u5316\u3001\u4efb\u52a1\u63a7\u5236\u5757\u521d\u59cb\u5316\u7b49\u90e8\u5206\u5185\u5bb9\u3002<\/span><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; \u5168\u5c40\u53d8\u91cf\u521d\u59cb\u5316\u3002\u7531\u4e8e\u03bcCOS-ii\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u5b9a\u4e49\u4e86\u4f17\u591a\u4e0e\u7cfb\u7edf\u53c2\u6570\u6709\u5173\u7684\u5168\u5c40\u53d8\u91cf\uff0c\u56e0\u6b64\u5168\u5c40\u53d8\u91cf\u7684\u521d\u59cb\u5316\u5305\u542b\u4f17\u591a\u5185\u5bb9\u3002\u8fd9\u4e9b\u7cfb\u7edf\u53c2\u6570\u7684\u521d\u59cb\u5316\u5927\u90fd\u88ab\u5c01\u88c5\u5728OSInit()\u51fd\u6570\u4e2d\u3002\u5c24\u5176\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728OSInit\u51fd\u6570\u4e2d\uff0cOSRunning\u53d8\u91cf\u4e00\u5b9a\u8981\u88ab\u5b9a\u4e49\u6210FALSE\uff0c\u5426\u5219\u5728OSStart\u51fd\u6570\u4e2d\uff0c\u7cfb\u7edf\u65e0\u6cd5\u542f\u52a8\u521b\u5efa\u7684\u4efb\u52a1\uff0c\u7cfb\u7edf\u56e0\u6b64\u53d8\u6210\u4e86\u4e00\u4e2a\u6709\u59cb\u6709\u7ec8\u7684\u51fd\u6570\uff0c\u521b\u5efa\u7684\u4efb\u52a1\u6c38\u8fdc\u5f97\u4e0d\u5230\u6267\u884c\u3002\u5728\u5b9e\u9645\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u8868\u73b0\u4e3a\u4e3b\u51fd\u6570\u8fd0\u884c\u4e00\u6b21\u4e4b\u540e\uff0c\u7cfb\u7edf\u4e0d\u518d\u8fd0\u884c\u3002\u53e6\u5916\u9700\u8981\u6ce8\u610f\u7684\u662fOSTCBCur\u3001OSTCBList\u7b49\u8fd9\u51e0\u4e2a\u53d8\u91cf\u9700\u8981\u5b9a\u4e49\u4e3a(OS_TCB DT_XDATA *)0\u7684\u7c7b\u578b\u3002\u56e0\u4e3a\u8fd9\u4e9b\u53d8\u91cf\u662f\u6307\u5411\u7ed3\u6784\u4f53TCB(Task Control Block)\u7684\u6307\u9488\uff0c\u5e76\u4e0d\u662f\u6570\u5b57\u3007\u3002<\/span><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; \u521b\u5efa\u7a7a\u95f2\u4efb\u52a1\u3002\u521b\u5efa\u7a7a\u95f2\u4efb\u52a1\u5305\u62ec\u8fdb\u5165\u4e34\u754c\u533a\u3001\u4efb\u52a1\u5806\u6808\u521d\u59cb\u5316\u3001TCB\u521d\u59cb\u5316\u3001\u9000\u51fa\u4e34\u754c\u533a\u7b49\u5185\u5bb9\uff0c\u5927\u90e8\u5206\u662f\u4e00\u4e9b\u7b80\u5355\u7684\u8d4b\u503c\u64cd\u4f5c\uff0c\u6bd4\u8f83\u7b80\u5355\uff0c\u4e0d\u518d\u8d58\u8ff0\u3002\u5176\u4e2dOSRdyGrp |= ptcb-&gt;OSTCBBitY; OSRdyTbl[ptcb-&gt;OSTCBY] |= ptcb-&gt;OSTCBBitX;\u8fd9\u4e24\u53e5\u8bdd\u8981\u5c3d\u91cf\u770b\u61c2\u3002\u56e0\u4e3a\u8fd9\u4e24\u53e5\u8bdd\u7275\u626f\u5230\u540e\u9762OSUnMapTbl\u8fd9\u4e2a\u77e9\u9635\u7684\u7406\u89e3\u3002\u5176\u542b\u4e49\u4e3a\u4e00\u65e6\u4efb\u52a1\u5c31\u7eea\u961f\u5217\u4e2d\u6709&#8221;1&#8243;\uff08\u5373\u5bf9\u5e94\u7684\u4efb\u52a1\u5c31\u7eea\uff09\uff0c\u5219\u76f8\u5e94\u7684\u4efb\u52a1\u7ec4OSRdyGrp \u76f8\u5e94\u7684\u4f4d\u53d8\u62101\uff0cOSRdyTbl\u4e2d\u7684\u76f8\u5e94\u7684\u4f4d\u4e5f\u53d8\u62101.<\/span><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; \u5806\u6808\u521d\u59cb\u5316\u4ee5\u53ca\u4efb\u52a1\u63a7\u5236\u5757\u521d\u59cb\u5316\u3002\u6bd4\u8f83\u5bb9\u6613\u7406\u89e3\uff0c\u7b80\u5355\u7684\u8d4b\u503c\u64cd\u4f5c\u3002\u4e0d\u8fc7\u5728\u5806\u6808\u521d\u59cb\u5316\u4e2d\u7684ppdata = ppdata;opt = opt; \u4ee5\u53ca\u4efb\u52a1\u63a7\u5236\u5757\u521d\u59cb\u5316\u4e2d\u7684pext= pext; stk_size= stk_size;pbos=pbos;opt=opt; id= id;\u8fd9\u4e9b\u8bed\u53e5\u521a\u5f00\u59cb\u7684\u65f6\u5019\u5f88\u4ee4\u4eba\u8d39\u89e3\u3002\u5176\u5b9e\u8fd9\u4e9b\u662f\u9632\u6b62\u7f16\u8bd1\u5668\u4e0d\u65ad\u7684\u62a5warning\uff0c\u4ee5\u514d\u5f71\u54cd\u6b63\u5e38\u7684\u8c03\u8bd5\u7684\u3002<\/span><\/p>\n<h2><span id=\"2\">2 \u4efb\u52a1\u521b\u5efa<\/span><\/h2>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp; \u540c\u4e0a\u8ff0\u521b\u5efa\u7a7a\u4efb\u52a1\u5927\u4f53\u96f7\u540c\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\u6b64\u65f6\u64cd\u4f5c\u7cfb\u7edf\u7684OSRunning\u53d8\u91cf\u8fd8\u662f\u5904\u4e8eFALSE\u72b6\u6001\uff0c\u56e0\u6b64\u521b\u5efa\u4efb\u52a1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u64cd\u4f5c\u7cfb\u7edf\u5e76\u6ca1\u6709\u5f00\u59cb\u8fd0\u884c\u3002\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u64cd\u4f5c\u7cfb\u7edf\u5728\u5f00\u59cb\u8fd0\u884c\u7684\u65f6\u5019\u4e0d\u662f\u9009\u62e9\u7b2c\u4e00\u4e2a\u521b\u5efa\u7684\u4efb\u52a1\u5f00\u59cb\u8fd0\u884c\uff0c\u800c\u662f\u4ece\u6240\u6709\u7684\u4efb\u52a1\u91cc\u9762\u9009\u62e9\u4f18\u5148\u7ea7\u6700\u9ad8\u7684\u8fd0\u884c\u7684\u539f\u56e0\u3002<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;<\/span><\/p>\n<h2><span id=\"3\">3 \u4efb\u52a1\u8c03\u5ea6<\/span><\/h2>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; \u4efb\u52a1\u8c03\u5ea6\u662f\u4eceOSStart\u51fd\u6570\u5f00\u59cb\u7684\u3002\u5177\u4f53\u5305\u62ecOSStart\u3001OsStartHighRdy\u3001Task1~n\u3001OSTimeDlyHMSM\u3001OSSched\u7b49\u51fd\u6570\uff0c\u5176\u4e2d\u4efb\u52a1\u4ea4\u6362\u662f\u5728\u6c47\u7f16\u8bed\u8a00\u6587\u4ef6\u7684OS_TASK_SW\u51fd\u6570\u4e2d\u8fd0\u884c\u7684\u3002<\/span><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp; OsStart\u5728\u6574\u4e2a\u7cfb\u7edf\u8fd0\u884c\u7684\u8fc7\u7a0b\u4e2d\u53ea\u4f1a\u8fd0\u884c\u4e00\u6b21\u3002\u5728\u7cfb\u7edf\u521b\u5efa\u4efb\u52a1\u4e4b\u540e\u8fd0\u884c\u3002\u4e3b\u8981\u76ee\u7684\u662f\u4ece\u4efb\u52a1\u5c31\u7eea\u8868\u4e2d\u6311\u9009\u51fa\u4f18\u5148\u7ea7\u6700\u9ad8\u7684\u4efb\u52a1\uff0c\u5e76\u5f00\u59cb\u8fd0\u884c\u4f18\u5148\u7ea7\u6700\u9ad8\u7684\u4efb\u52a1\u3002<\/span><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp; OsStartHighRdy\u4e3aasm\u6587\u4ef6\u4e2d\u7684\u4e00\u90e8\u5206\u3002\u4e3b\u8981\u662f\u5806\u6808\u7684\u64cd\u4f5c\u3002\u76ee\u7684\u662f\u8981\u628a\u9ad8\u4f18\u5148\u7ea7\u4efb\u52a1\u7684\u4efb\u52a1\u5806\u6808\u590d\u5236\u5230\u5bc4\u5b58\u5668\u4e2d\uff0c\u4e3a\u5373\u5c06\u5f00\u59cb\u7684\u8fd0\u884c\u6700\u9ad8\u4f18\u5148\u7ea7\u7684\u4efb\u52a1\u505a\u597d\u51c6\u5907\u3002<\/span><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp; Task1~n\u3002Task\u4e3a\u4e00\u4e2a\u65e0\u9650\u5faa\u73af\u51fd\u6570\u3002\u867d\u7136\u662f\u65e0\u9650\u5faa\u73af\u51fd\u6570\uff0c\u4f46\u662f\u4e0e\u5e73\u5e38\u524d\u540e\u53f0\u7cfb\u7edf\u4e2d\u7684\u65e0\u9650\u5faa\u73af\u5177\u6709\u533a\u522b\u3002\u56e0\u4e3a\u03bcCOS-ii\u64cd\u4f5c\u7cfb\u7edf\u5e76\u4e0d\u662f\u4e00\u4e2a\u50cfLinux\u90a3\u6837\u7684\u65f6\u95f4\u7247\u8f6e\u6d41\u5904\u7406\u7684\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5b83\u4ec5\u4ec5\u662f\u4e00\u4e2a\u5904\u7406\u5b8c\u4e00\u90e8\u5206\u5185\u5bb9\u4e4b\u540e\u518d\u53bb\u5904\u7406\u53e6\u4e00\u90e8\u5206\u5185\u5bb9\u7684\u5b9e\u65f6\u64cd\u4f5c\u7cfb\u7edf\u3002\u8fd9\u5c31\u8981\u6c42\u5728\u6bcf\u4e00\u4e2a\u4efb\u52a1\u7684\u6bcf\u4e00\u4e2a\u65e0\u9650\u5faa\u73af\u4e2d\u90fd\u8981\u52a0\u4e00\u4e2a\u8c03\u7528OSSched\u51fd\u6570\u7684\u51fd\u6570\u3002<\/span><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp; OSTimeDlyHMSM\u4e3b\u8981\u662f\u4e3a\u7528\u6237\u63d0\u4f9b\u4e00\u4e2a\u826f\u597d\u7684\u501f\u53e3\uff0c\u5c06\u7528\u6237\u8f93\u5165\u7684\u65f6\u3001\u5206\u3001\u79d2\u3001\u6beb\u79d2\u8fd9\u56db\u4e2a\u6570\u636e\u8f6c\u6362\u6210\u7cfb\u7edf\u7684\u6ef4\u7b54\u6570\uff0c\u7136\u540e\u8c03\u7528OSTimeDly\u5b9e\u73b0\u3002\u5728OSTimeDly\u4e2d\u8c03\u7528OSSched\uff0c\u786e\u4fdd\u7cfb\u7edf\u7684\u5b9e\u65f6\u6027\u3002OSSched\u51fd\u6570\u7ed3\u6784\u4e5f\u7c7b\u4f3c\u4e8eOSStart\uff0c\u4e3b\u8981\u662f\u8ba1\u7b97\u51fa\u4efb\u52a1\u5c31\u7eea\u8868\u4e2d\u6700\u9ad8\u4f18\u5148\u7ea7\u7684\u4efb\u52a1\uff0c\u901a\u8fc7OS_TASK_SW\u4e2d\u7684\u5806\u6808\u7684\u64cd\u4f5c\u5b9e\u73b0\u4efb\u52a1\u7684\u4ea4\u6362\u3002<\/span><\/p>\n<h1><span id=\"COS-ii-2\">\u03bcCOS-ii\u67e5\u627e\u6700\u9ad8\u4f18\u5148\u7ea7\u7b97\u6cd5\u7684\u5b9e\u73b0<\/span><\/h1>\n<p><p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; \u6307\u5bfc\u601d\u60f3\uff1a\u4ee5\u7a7a\u95f4\u6362\u65f6\u95f4\u3002<\/span><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; \u5728\u67e5\u770b\u6e90\u4ee3\u7801\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6700\u4ee4\u4eba\u8d39\u89e3\u7684\u6216\u8bb8\u5c31\u662fOSUnMapTbl\u8fd9\u4e2a\u77e9\u9635\u4e86\u3002\u73b0\u5c06\u6b64\u77e9\u9635\u590d\u5236\u5982\u4e0b\uff1a<\/span><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; INT8U&nbsp;&nbsp;&nbsp; const DT_XDATA&nbsp;&nbsp;&nbsp; OSUnMapTbl[] = {<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">0, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">7, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0<\/span><\/p>\n<p align=\"center\"><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">};<\/span><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp;&nbsp; \u5728\u4e86\u89e3\u8fd9\u4e2a\u77e9\u9635\u7684\u5de5\u4f5c\u539f\u7406\u4e4b\u524d\uff0c\u6211\u4eec\u6709\u5fc5\u8981\u4e86\u89e3\u4e00\u4e0b\u51e0\u4e2a\u53d8\u91cf\u7684\u542b\u4e49\uff1a<\/span><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; OSRdyGrp \u662f\u4e00\u4e2a8\u4f4d\u7684unsigned char\u578b\u6570\u3002\u7531\u4e8e\u8be5\u03bcCOS-ii\u7cfb\u7edf\u6700\u591a\u5141\u8bb8prio\u4e3a63\uff0c\u4e5f\u5c31\u662f\u8bf4\u6700\u591a\u5141\u8bb8\u670964\u4e2a\u4f18\u5148\u7ea7\u300264\u4e2a\u4f18\u5148\u7ea7\u88ab\u5206\u6210\u4e86\u516b\u7ec4\uff0c\u6bcf\u7ec4\u6709\u516b\u4e2a\u4f18\u5148\u7ea7\u3002\u5982\u679c\u6709\u4efb\u4f55\u4e00\u7ec4\u4e2d\u7684\u4efb\u52a1\u8fdb\u5165\u4e86\u5c31\u7eea\u72b6\u6001\uff0c\u5219\u8be5\u7ec4\u6240\u5bf9\u5e94\u7684\u4f4d\u53d8\u4e3a1\u3002\u6bd4\u5982\u4f18\u5148\u7ea7\u4e3a4\uff0c23\uff0c56\u7684\u4efb\u52a1\u540c\u65f6\u8fdb\u5165\u4e86\u5c31\u7eea\u6001\uff0c\u5219\u5bf9\u5e94\u7b2c0\uff0c2\uff0c7\u7ec4\u4e2d\u6709\u4efb\u52a1\u8fdb\u5165\u4e86\u5c31\u7eea\u6001\uff0c\u5219\u6b64\u65f6OSRdyGrp \u5e94\u4e3a 10000101\u3002<\/span><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; OSRdyTbl\u4e3a\u4e00\u4e2a\u67098\u4e2a\u5143\u7d20\u76848\u4f4d\u6570\u7684\u6570\u7ec4\uff0c\u5206\u522b\u4e3aOSRdyTbl[0]&#8230;OSRdyTbl[7]\u3002\u4eceOSRdyTbl[0]\u5230OSRdyTbl[7]\u7684\u6bcf\u4e00\u4f4d\u6570\u5bf9\u5e94\u76f8\u5e94\u4f18\u5148\u7ea7\u7684\u4efb\u52a1\u662f\u4e0d\u662f\u8fdb\u5165\u4e86\u5c31\u7eea\u6001\u3002\u8fd8\u662f\u4e0a\u9762\u7684\u4f8b\u5b50\uff0c\u5047\u5982\u4f18\u5148\u7ea7\u4e3a4\uff0c23\uff0c56\u7684\u4efb\u52a1\u8fdb\u5165\u4e86\u5c31\u7eea\u6001\uff0c\u5219OSRdyTbl[0]\u7684\u7b2c4\u4f4d\uff0cOSRdyTbl[2]\u7684\u7b2c7\u4f4d\uff0cOSRdyTbl[7]\u7684\u7b2c0\u4f4d\u53d8\u62101\uff0c\u5176\u4ed6\u7684\u4f4d\u4ecd\u7136\u4fdd\u6301\u96f6\u3002<\/span><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; \u4ecb\u7ecd\u5b8c\u4e24\u4e2a\u53d8\u91cf\u4e4b\u540e\uff0c\u5c31\u53ef\u4ee5\u5f88\u5bb9\u6613\u7406\u89e3\u8fd9\u4e2a\u77e9\u9635\u7684\u4f5c\u7528\u4e86\u3002\u77e9\u9635\u7684\u7b2ci\u4e2a\u6570\u5b57\u8868\u793a\u7528\u4e8c\u8fdb\u5236\u8868\u793a\u7684i\u4e2d1\u6240\u51fa\u73b0\u7684\u6700\u5c0f\u4f4d\u6570\u3002\u6bd4\u5982\u5bf9\u4e8e\u77e9\u9635\u7684\u7b2c48\u4e2a\u6570\u5b57\uff0c48\u7528\u4e8c\u8fdb\u5236\u8868\u793a\u4e3a00110000\uff0c\u5728\u7b2c4\u4f4d\u4ee5\u53ca\u7b2c5\u4f4d\u4e2d\u51fa\u73b0\u4e861\uff0c\u6545\u53bb\u6700\u5c0f\u503c\uff0c\u5219<span style=\"font-size: 12pt\"><span style=\"font-family: times new roman\">OSUnMapTbl<\/span>[48]=4 \u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u901a\u8fc7\u67e5\u8fd9\u4e2a\u77e9\u9635\u5f97\u5230\u7684\u662f\u6700\u5c0f\u7684\u51fa\u73b01\u7684\u4f4d\u6570\u3002\u5047\u5982\u5bf9\u4e8e<\/span>OSRdyGrp \u6765\u8bf4\uff0c\u5728OSRdyGrp \u7b49\u4e8e48\u7684\u60c5\u51b5\u4e0b\uff0c\u610f\u5473\u7740\u7b2c\u56db\u7ec4\u4e0e\u7b2c\u4e94\u7ec4\u4e2d\u6709\u4efb\u52a1\u5904\u4e8e\u5c31\u7eea\u72b6\u6001\uff0c\u5219\u901a\u8fc7\u6b64\u8868\u53ef\u4ee5\u5f97\u51fa\u6700\u9ad8\u4f18\u5148\u7ea7\u7684\u4efb\u52a1\u5728\u7b2c\u56db\u7ec4\u4e2d\u3002\u5047\u5982\u5bf9\u4e8eOSRdyTbl\u6765\u8bf4\uff0cOSRdyTbl[4]\u8868\u793a\u7b2c\u56db\u7ec4\u4e2d\u6bcf\u4e00\u4e2a\u5143\u7d20\u662f\u4e0d\u662f\u5904\u4e8e\u5c31\u7eea\u6001\u3002\u8fd8\u662f\u62ff48\u6765\u6253\u6bd4\u65b9\uff0c\u5047\u5982OSRdyTbl[4]\u7b49\u4e8e48\uff0c\u670948\u7528\u4e8c\u8fdb\u5236\u8868\u793a\u4e3a00110000\u53ef\u5f97\u7b2c\u56db\u4f4d\u4e0e\u7b2c\u4e94\u4f4d\u4e2d\u6709\u4e24\u4e2a\u4efb\u52a1\u5904\u4e8e\u5c31\u7eea\u6001\uff0c\u6b64\u65f6\u67e5\u8be2OSUnMapTbl[48]=4\u53ef\u5f97\u4f18\u5148\u7ea7\u6700\u9ad8\u7684\u4efb\u52a1\u5904\u4e8e\u7b2c\u56db\u4f4d\u4e0a\u3002\u7531\u6b64\u5f88\u5bb9\u6613\u7406\u89e3\u8fd9\u4e24\u884c\u4ee3\u7801\uff1a<\/span><\/p>\n<p align=\"center\"><strong><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">y= OSUnMapTbl[OSRdyGrp];<\/span><\/strong><\/p>\n<p align=\"center\"><strong><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">x = OSUnMapTbl[OSRdyTbl[y]];<\/span><\/strong><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; \u56e0\u6b64\u5f97\u5230\u7684y\u4e3a\u6700\u9ad8\u4f18\u5148\u7ea7\u6240\u5728\u7684\u7ec4\u53f7\u3002X\u4e3a\u6700\u9ad8\u4f18\u5148\u7ea7\u6240\u5728\u7684\u7ec4\u4e2d\u6700\u9ad8\u4f18\u5148\u7ea7\u6240\u5728\u7684\u7ec4\u7684\u7ec4\u53f7\u3002\u7531\u4e8e\u6bcf\u7ec4\u67098\u4e2a\u6210\u5458\uff0c\u5bf9\u4e8ey\u7ec4\u7b2cx\u4e2a\u6765\u8bf4\uff0c\u4f18\u5148\u7ea7\u81ea\u7136\u662f 8*y+x \u3002\u7531\u6b64\u5f97\u5230\u4e86\u6700\u9ad8\u4f18\u5148\u7ea7\u3002\u4e0b\u9762\u7684\u4ee3\u7801\u4e0d\u96be\u7406\u89e3\u3002<\/span><\/p>\n<p align=\"center\"><strong><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">OSPrioHighRdy = (INT8U)((y &lt;&lt; 3) + x);<\/span><\/strong><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; \u6b64\u5916\uff0c\u56e0\u4e3a\u8fd9\u4e2a\u77e9\u9635\u65e0\u8bba\u5728\u4f55\u79cd\u60c5\u51b5\u4e0b\uff0c\u90fd\u662f\u4e0d\u53d8\u7684\uff0c\u56e0\u6b64\u4e2a\u4eba\u8ba4\u4e3a\u539f\u03bcCOS-ii\u7cfb\u7edf\u4e2d\u5b9a\u4e49\u4e3aDT_XDATA\u5b8c\u5168\u6ca1\u6709\u5fc5\u8981\uff0c\u53ea\u662f\u589e\u52a0\u4e86\u7cfb\u7edf\u7684\u5f00\u9500\u3002\u56e0\u6b64\u6211\u5c1d\u8bd5\u5c06\u6b64\u53d8\u91cf\u7c7b\u578b\u6539\u6210DT_CODE \uff0c\u7ecf\u8fc7\u8fd0\u884cTMP124\u7684\u5c1d\u8bd5\uff0c\u7cfb\u7edf\u8fd0\u884c\u51e0\u5341\u5206\u949f\u540e\u4ecd\u7136\u6b63\u5e38\u3002\u56e0\u6b64\u5f97\u51fa\u4e86\u6b64\u5904\u53ef\u4ee5\u6539\u8fdb\u7684\u5efa\u8bae\u3002\u800c\u4e14\u6539\u8fdb\u4e4b\u540e\u7cfb\u7edf\u7684\u5360\u7528xdata\u4ece600\u591a\u5b57\u8282\u51cf\u5c11\u5230400\u591a\u5b57\u8282\uff0c\u7cfb\u7edf\u8d44\u6e90\u5360\u7528\u51cf\u5c11\u5f88\u660e\u663e\u3002<\/span><\/p>\n<p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; \u53ef\u80fd\u7f16\u5199\u03bcCOS-ii\u7684\u5de5\u7a0b\u5e08\u4e3a\u4e86\u63d0\u9ad8\u53ef\u79fb\u690d\u6027\uff0c\u5c06OSUnMapTbl\u5b9a\u4e49\u4e3aDT_XDATA\u5427\u3002\u4ec5\u4ec5\u731c\u6d4b\u800c\u5df2\u3002<\/span><\/p>\n<h1><span id=\"i\">\u4ee3\u7801\u79fb\u690d\u611f\u60f3<\/span><\/h1>\n<p><p><span style=\"font-size: small; font-family: \u5fae\u8f6f\u96c5\u9ed1\">&nbsp;&nbsp;&nbsp; \u7565\u3002<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp;&nbsp; \u03bcC\/OS-II \u662f\u4e00\u4e2a\u6e90\u4ee3\u7801\u516c\u5f00\u3001\u53ef\u79fb\u690d\u3001\u53ef\u88c1\u526a\u7684\u5b9e\u65f6\u591a\u4efb\u52a1\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5177\u6709\u7a33\u5b9a\u53ef\u9760\u3001\u5b9e\u65f6\u6027\u597d\u7b49\u4f18\u70b9\uff0c\u662f\u4e13\u95e8\u9488\u5bf9\u5fae\u5904\u7406\u5668\u548c\u5fae\u63a7\u5236\u5668\u8bbe\u8ba1\u7684\u5b9e\u65f6\u5185\u6838\uff0c\u5b83\u7684\u5185\u6838\u53ef\u4ee5\u505a\u5230\u5f88\u5c0f\uff0c\u5f88\u9002\u5408\u5728\u5355\u7247\u673a\u7cfb\u7edf\u4e0a\u79fb\u690d\u3002\u79fb\u690d\u4e86\u03bcC\/OS-II \u7684\u5d4c\u5165\u5f0f\u7cfb\u7edf\u53ef\u4ee5\u4f7f\u5404\u4e2a\u4efb\u52a1\u72ec\u7acb\u5de5\u4f5c\uff0c\u4e92\u4e0d\u5e72\u6d89\uff0c\u5f88\u5bb9\u6613\u5b9e\u73b0&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":-545,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[],"views":829,"_links":{"self":[{"href":"https:\/\/www.liuwenhao.me\/index.php?rest_route=\/wp\/v2\/posts\/545"}],"collection":[{"href":"https:\/\/www.liuwenhao.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.liuwenhao.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.liuwenhao.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.liuwenhao.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=545"}],"version-history":[{"count":2,"href":"https:\/\/www.liuwenhao.me\/index.php?rest_route=\/wp\/v2\/posts\/545\/revisions"}],"predecessor-version":[{"id":5355,"href":"https:\/\/www.liuwenhao.me\/index.php?rest_route=\/wp\/v2\/posts\/545\/revisions\/5355"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.liuwenhao.me\/index.php?rest_route=\/"}],"wp:attachment":[{"href":"https:\/\/www.liuwenhao.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.liuwenhao.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.liuwenhao.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}