{"id":90995,"date":"2026-08-06T13:57:54","date_gmt":"2026-08-06T05:57:54","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/90995.html"},"modified":"2026-08-06T13:57:54","modified_gmt":"2026-08-06T05:57:54","slug":"rtt%e5%ad%a6%e4%b9%a0-%e4%bf%a1%e5%8f%b7%e9%87%8f%e3%80%81%e4%ba%92%e6%96%a5%e9%87%8f%e3%80%81%e4%ba%8b%e4%bb%b6%e9%9b%86","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/90995.html","title":{"rendered":"RTT\u5b66\u4e60-\u4fe1\u53f7\u91cf\u3001\u4e92\u65a5\u91cf\u3001\u4e8b\u4ef6\u96c6"},"content":{"rendered":"<h3>\u4e00\u3001\u5148\u770b\u4e09\u8005\u600e\u4e48\u9009<\/h3>\n<table>\n<tr>\u5185\u6838\u5bf9\u8c61\u6838\u5fc3\u4f5c\u7528\u5178\u578b\u573a\u666f<\/tr>\n<tbody>\n<tr>\n<td>\u4fe1\u53f7\u91cf<\/td>\n<td>\u8bb0\u5f55\u53ef\u7528\u8d44\u6e90\u6570\u91cf\u6216\u53d1\u9001\u901a\u77e5<\/td>\n<td>\u751f\u4ea7\u8005\/\u6d88\u8d39\u8005\u3001\u8d44\u6e90\u8ba1\u6570\u3001\u6309\u952e\u5524\u9192\u7ebf\u7a0b<\/td>\n<\/tr>\n<tr>\n<td>\u4e92\u65a5\u91cf<\/td>\n<td>\u4fdd\u8bc1\u5171\u4eab\u8d44\u6e90\u540c\u4e00\u65f6\u95f4\u53ea\u88ab\u4e00\u4e2a\u7ebf\u7a0b\u8bbf\u95ee<\/td>\n<td>\u4fdd\u62a4\u5168\u5c40\u53d8\u91cf\u3001\u8bbe\u5907\u6216\u4e34\u754c\u533a<\/td>\n<\/tr>\n<tr>\n<td>\u4e8b\u4ef6\u96c6<\/td>\n<td>\u7b49\u5f85\u4e00\u4e2a\u6216\u591a\u4e2a\u4e8b\u4ef6\u6761\u4ef6<\/td>\n<td>\u7b49\u4efb\u610f\u4e8b\u4ef6\u3001\u7b49\u591a\u4e2a\u6761\u4ef6\u5168\u90e8\u6ee1\u8db3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4e00\u53e5\u8bdd\u8bb0\u5fc6&#xff1a;<\/p>\n<p>\u8981\u8ba1\u6570&#xff0c;\u7528\u4fe1\u53f7\u91cf&#xff1b;<br \/>\n\u8981\u52a0\u9501&#xff0c;\u7528\u4e92\u65a5\u91cf&#xff1b;<br \/>\n\u8981\u7ec4\u5408\u591a\u4e2a\u6761\u4ef6&#xff0c;\u7528\u4e8b\u4ef6\u96c6\u3002<\/p>\n<h3>\u4e8c\u3001\u4fe1\u53f7\u91cf&#xff1a;\u53ef\u8ba1\u6570\u7684\u201c\u901a\u884c\u8bc1\u201d<\/h3>\n<p>\u53ef\u4ee5\u628a\u4fe1\u53f7\u91cf\u7406\u89e3\u6210\u505c\u8f66\u573a\u7684\u7a7a\u8f66\u4f4d\u6570\u91cf&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u83b7\u53d6\u4e00\u4e2a\u4fe1\u53f7\u91cf&#xff1a;\u7a7a\u4f4d\u6570\u51cf 1&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u91ca\u653e\u4e00\u4e2a\u4fe1\u53f7\u91cf&#xff1a;\u7a7a\u4f4d\u6570\u52a0 1&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u6570\u503c\u4e3a 0 \u65f6&#xff1a;\u7533\u8bf7\u7ebf\u7a0b\u7b49\u5f85\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u6838\u5fc3\u63a5\u53e3&#xff1a;<\/p>\n<p>rt_sem_take(sem, timeout); \u00a0\/* \u83b7\u53d6&#xff0c;\u6210\u529f\u8fd4\u56de RT_EOK *\/<br \/>\nrt_sem_release(sem); \u00a0 \u00a0 \u00a0 \u00a0\/* \u91ca\u653e *\/<\/p>\n<p>timeout \u7684\u5355\u4f4d\u662f OS Tick&#xff0c;\u4e5f\u53ef\u4ee5\u4f7f\u7528 RT_WAITING_FOREVER \u4e00\u76f4\u7b49\u5f85\u3002<\/p>\n<p>\u4fe1\u53f7\u91cf\u5e38\u89c1\u7684\u4e24\u79cd\u7528\u6cd5&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u521d\u59cb\u503c\u4e3a 0&#xff1a;\u7528\u4e8e\u7ebf\u7a0b\u95f4\u901a\u77e5&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u521d\u59cb\u503c\u5927\u4e8e 0&#xff1a;\u8868\u793a\u53ef\u540c\u65f6\u4f7f\u7528\u7684\u8d44\u6e90\u6570\u91cf\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u7b49\u5f85\u961f\u5217\u652f\u6301&#xff1a;<\/p>\n<ul>\n<li>\n<p>RT_IPC_FLAG_FIFO&#xff1a;\u5148\u7b49\u5f85\u7684\u7ebf\u7a0b\u5148\u83b7\u5f97\u4fe1\u53f7\u91cf&#xff1b;<\/p>\n<\/li>\n<li>\n<p>RT_IPC_FLAG_PRIO&#xff1a;\u4f18\u5148\u7ea7\u66f4\u9ad8\u7684\u7b49\u5f85\u7ebf\u7a0b\u5148\u83b7\u5f97\u4fe1\u53f7\u91cf\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4fe1\u53f7\u91cf\u6ca1\u6709\u6240\u6709\u6743&#xff0c;\u91ca\u653e\u8005\u4e0d\u4e00\u5b9a\u662f\u83b7\u53d6\u8005\u3002\u56e0\u6b64\u5b83\u9002\u5408\u901a\u77e5\u548c\u8ba1\u6570&#xff0c;\u4f46\u4fdd\u62a4\u5171\u4eab\u8d44\u6e90\u65f6\u901a\u5e38\u66f4\u63a8\u8350\u4e92\u65a5\u91cf\u3002<\/p>\n<h3>\u4e09\u3001\u4e92\u65a5\u91cf&#xff1a;\u5e26\u6240\u6709\u6743\u7684\u201c\u95e8\u9501\u201d<\/h3>\n<p>\u4e92\u65a5\u91cf\u7528\u4e8e\u4fdd\u62a4\u4e34\u754c\u533a&#xff1a;\u7ebf\u7a0b\u8fdb\u5165\u524d\u52a0\u9501&#xff0c;\u79bb\u5f00\u540e\u89e3\u9501&#xff0c;\u5176\u4ed6\u7ebf\u7a0b\u5fc5\u987b\u7b49\u5f85\u3002<\/p>\n<p>if (rt_mutex_take(mutex, RT_WAITING_FOREVER) &#061;&#061; RT_EOK)<br \/>\n{<br \/>\n \u00a0 \u00a0\/* \u5b89\u5168\u8bbf\u95ee\u5171\u4eab\u8d44\u6e90 *\/<br \/>\n\u200b<br \/>\n \u00a0 \u00a0rt_mutex_release(mutex);<br \/>\n}<\/p>\n<p>\u4e92\u65a5\u91cf\u6709\u4e09\u4e2a\u91cd\u8981\u7279\u70b9&#xff1a;<\/p>\n<li>\n<p>\u5177\u6709\u6240\u6709\u6743&#xff1a;\u53ea\u80fd\u7531\u6301\u6709\u5b83\u7684\u7ebf\u7a0b\u91ca\u653e&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u652f\u6301\u9012\u5f52\u83b7\u53d6&#xff1a;\u540c\u4e00\u7ebf\u7a0b\u53ef\u4ee5\u591a\u6b21\u83b7\u53d6&#xff0c;\u4f46\u5fc5\u987b\u91ca\u653e\u76f8\u540c\u6b21\u6570&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u652f\u6301\u4f18\u5148\u7ea7\u7ee7\u627f&#xff1a;\u7528\u4e8e\u7f13\u89e3\u4f18\u5148\u7ea7\u7ffb\u8f6c\u3002<\/p>\n<\/li>\n<h4>\u4ec0\u4e48\u662f\u4f18\u5148\u7ea7\u7ffb\u8f6c<\/h4>\n<p>\u5047\u8bbe\u4f4e\u4f18\u5148\u7ea7\u7ebf\u7a0b L \u6301\u6709\u4e92\u65a5\u91cf&#xff0c;\u9ad8\u4f18\u5148\u7ea7\u7ebf\u7a0b H \u7b49\u5f85\u8be5\u4e92\u65a5\u91cf\u3002\u6b64\u65f6\u5982\u679c\u4e2d\u4f18\u5148\u7ea7\u7ebf\u7a0b M \u4e0d\u65ad\u62a2\u5360 L&#xff0c;H \u4e5f\u4f1a\u88ab\u95f4\u63a5\u62d6\u5ef6\u3002<\/p>\n<p>RT-Thread \u4f1a\u4e34\u65f6\u63d0\u9ad8 L \u7684\u4f18\u5148\u7ea7&#xff0c;\u8ba9\u5b83\u5c3d\u5feb\u5b8c\u6210\u4e34\u754c\u533a\u5e76\u91ca\u653e\u4e92\u65a5\u91cf&#xff1b;\u91ca\u653e\u540e&#xff0c;L \u6062\u590d\u539f\u4f18\u5148\u7ea7\u3002\u8fd9\u5c31\u662f\u4f18\u5148\u7ea7\u7ee7\u627f\u3002<\/p>\n<p>\u4e34\u754c\u533a\u5e94\u5c3d\u91cf\u77ed&#xff0c;\u4e0d\u8981\u5728\u6301\u6709\u4e92\u65a5\u91cf\u65f6\u8fdb\u884c\u957f\u65f6\u95f4\u5ef6\u65f6\u6216\u963b\u585e\u64cd\u4f5c\u3002<\/p>\n<p>\u8bfe\u4ef6\u8bf4\u660e&#xff0c;\u4e92\u65a5\u91cf\u521b\u5efa\u63a5\u53e3\u4e2d\u7684 flag \u53c2\u6570\u5df2\u4e0d\u518d\u533a\u5206 FIFO \u548c PRIO&#xff0c;\u5185\u6838\u6309\u4f18\u5148\u7ea7\u65b9\u5f0f\u5904\u7406\u3002<\/p>\n<h3>\u56db\u3001\u4e8b\u4ef6\u96c6&#xff1a;\u7528\u4f4d\u8868\u793a\u591a\u4e2a\u6761\u4ef6<\/h3>\n<p>\u4e8b\u4ef6\u96c6\u4f7f\u7528\u4e00\u4e2a 32 \u4f4d\u65e0\u7b26\u53f7\u6574\u6570\u4fdd\u5b58\u4e8b\u4ef6&#xff0c;\u6bcf\u4e00\u4f4d\u4ee3\u8868\u4e00\u4e2a\u4e8b\u4ef6&#xff1a;<\/p>\n<p>#define EVENT_KEY1 (1U &lt;&lt; 0)<br \/>\n#define EVENT_KEY2 (1U &lt;&lt; 1)<\/p>\n<p>\u53d1\u9001\u4e8b\u4ef6&#xff1a;<\/p>\n<p>rt_event_send(event, EVENT_KEY1);<\/p>\n<p>\u63a5\u6536\u4e8b\u4ef6\u65f6\u53ef\u4ee5\u9009\u62e9\u4e0d\u540c\u7684\u7ec4\u5408\u6761\u4ef6\u3002<\/p>\n<h4>\u7b49\u4efb\u610f\u4e00\u4e2a\u4e8b\u4ef6&#xff1a;OR<\/h4>\n<p>rt_event_recv(event,<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0EVENT_KEY1 | EVENT_KEY2,<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR,<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0RT_WAITING_FOREVER,<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0&amp;received);<\/p>\n<p>KEY1 \u6216 KEY2 \u4efb\u610f\u4e00\u4e2a\u53d1\u751f&#xff0c;\u7ebf\u7a0b\u5c31\u4f1a\u88ab\u5524\u9192\u3002<\/p>\n<h4>\u7b49\u5168\u90e8\u4e8b\u4ef6&#xff1a;AND<\/h4>\n<p>rt_event_recv(event,<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0EVENT_KEY1 | EVENT_KEY2,<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0RT_EVENT_FLAG_AND | RT_EVENT_FLAG_CLEAR,<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0RT_WAITING_FOREVER,<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0&amp;received);<\/p>\n<p>\u53ea\u6709 KEY1 \u548c KEY2 \u90fd\u53d1\u751f&#xff0c;\u7ebf\u7a0b\u624d\u4f1a\u88ab\u5524\u9192\u3002<\/p>\n<p>\u4e09\u4e2a\u9009\u9879\u7684\u4f5c\u7528&#xff1a;<\/p>\n<table>\n<tr>\u9009\u9879\u542b\u4e49<\/tr>\n<tbody>\n<tr>\n<td>RT_EVENT_FLAG_OR<\/td>\n<td>\u4efb\u610f\u4e00\u4e2a\u76ee\u6807\u4e8b\u4ef6\u6ee1\u8db3\u5373\u53ef<\/td>\n<\/tr>\n<tr>\n<td>RT_EVENT_FLAG_AND<\/td>\n<td>\u6240\u6709\u76ee\u6807\u4e8b\u4ef6\u90fd\u6ee1\u8db3\u624d\u53ef\u4ee5<\/td>\n<\/tr>\n<tr>\n<td>RT_EVENT_FLAG_CLEAR<\/td>\n<td>\u63a5\u6536\u6210\u529f\u540e\u6e05\u9664\u5bf9\u5e94\u4e8b\u4ef6\u4f4d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4e8b\u4ef6\u96c6\u53ea\u4f20\u9012\u201c\u662f\u5426\u53d1\u751f\u201d&#xff0c;\u4e0d\u4f20\u9012\u5177\u4f53\u6570\u636e&#xff0c;\u4e5f\u4e0d\u8bb0\u5f55\u540c\u4e00\u4e8b\u4ef6\u53d1\u751f\u4e86\u591a\u5c11\u6b21\u3002\u540c\u4e00\u4e8b\u4ef6\u5728\u88ab\u8bfb\u53d6\u524d\u8fde\u7eed\u53d1\u9001\u591a\u6b21&#xff0c;\u6548\u679c\u4ecd\u7b49\u540c\u4e8e\u4e00\u6b21\u3002<\/p>\n<h3>\u4e94\u3001\u521b\u5efa\u4e0e\u5220\u9664\u63a5\u53e3<\/h3>\n<p>\u4e09\u79cd\u5185\u6838\u5bf9\u8c61\u90fd\u652f\u6301\u9759\u6001\u548c\u52a8\u6001\u521b\u5efa&#xff0c;\u63a5\u53e3\u5fc5\u987b\u6b63\u786e\u914d\u5bf9&#xff1a;<\/p>\n<table>\n<tr>\u5bf9\u8c61\u9759\u6001\u521b\u5efa\/\u5220\u9664\u52a8\u6001\u521b\u5efa\/\u5220\u9664<\/tr>\n<tbody>\n<tr>\n<td>\u4fe1\u53f7\u91cf<\/td>\n<td>rt_sem_init() \/ rt_sem_detach()<\/td>\n<td>rt_sem_create() \/ rt_sem_delete()<\/td>\n<\/tr>\n<tr>\n<td>\u4e92\u65a5\u91cf<\/td>\n<td>rt_mutex_init() \/ rt_mutex_detach()<\/td>\n<td>rt_mutex_create() \/ rt_mutex_delete()<\/td>\n<\/tr>\n<tr>\n<td>\u4e8b\u4ef6\u96c6<\/td>\n<td>rt_event_init() \/ rt_event_detach()<\/td>\n<td>rt_event_create() \/ 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