\n\tNVIC_InitTypeDef NVIC_InitStructure;<\/p>\n
\n\tRCC_APB1PeriphClockCmd\uff08RCC_APB1Periph_TIM3\uff0cENABLE\uff09;<\/p>\n
\n\tTIM_ClearITPendingBit\uff08TIM3\uff0c TIM_IT_Update<\/u>\uff09;<\/p>\n
\n\tTIM_TimeBaseStructure.TIM_Period = 9999;<\/p>\n
\n\tTIM_TimeBaseStructure.TIM_Prescaler = 7199;<\/p>\n
\n\tTIM_TimeBaseStructure.TIM_ClockDivision = 0x0;<\/p>\n
\n\tTIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;<\/p>\n
\n\tTIM_TimeBaseInit\uff08TIM3\uff0c &TIM_TimeBaseStructure\uff09;<\/p>\n
\n\tTIM_ITConfig\uff08TIM3\uff0c TIM_IT_Update\uff0c ENABLE \uff09;<\/p>\n
\n\tTIM_Cmd\uff08TIM3\uff0cENABLE\uff09;<\/p>\n
\n\t\u5b9a\u65f6\u5668\u4e2d\u65ad\u4e3a1s<\/p>\n
\n\tSTM32\u5b9a\u65f6\u5668\u914d\u7f6e\u5b9a\u65f6\u65f6\u95f4\u603b\u7ed3 <\/h2>\n
\n\t\u5b9a\u65f6\u5668\u7684\u5b9a\u65f6 \u529f\u80fd <\/p>\n
\n\t\u5b9a\u65f6\u5668\u7684\u65f6\u949f\u6e90\u9009\u62e9 <\/p>\n
\n\t\u5b9a\u65f6\u5668\u7684\u65f6\u949f\u662f\u6765\u81eaAPB1\u6216\u8005APB2\u65f6\u949f\u7ebf\u4e0a\u7684\u500d\u9891\u5668\uff0c\u5176\u6700\u5927\u503c\u662fAPB1\u6216\u8005APB2\u65f6\u949f\u76842\u500d\u9891\u3002 <\/p>\n
\n\t\u8ba1\u6570\u5668\u65f6\u949f\u6e90\u9009\u62e9 <\/p>\n
\n\t\u8ba1\u6570\u5668\u65f6\u949f\u6765\u6e90\uff1a <\/p>\n
\n\t1\uff09\u5185\u90e8\u65f6\u949f\uff0c\u5373\u662f\u500d\u9891\u5668\u51fa\u6765\u540e\u7684\u65f6\u949f\uff1b <\/p>\n
\n\t2\uff09\u5916\u90e8\u65f6\u949f\u6a21\u5f0f1\uff0c\u8f93\u5165\u5f15\u811a\uff08TIx\uff09\uff0c\u901a\u5e38\u53eb\u505a\u5916\u90e8\u8f93\u5165\u6355\u83b7\uff1b 3\uff09\u5916\u90e8\u65f6\u949f\u6a21\u5f0f2\uff0c\u5916\u90e8\u89e6\u53d1\u8f93\u5165\uff08EXT\uff09\uff1b 4\uff09\u5176\u4ed6\u5b9a\u65f6\u5668\u89e6\u53d1\uff1b \u3000 <\/p>\n
\n\t\u8fd9\u91cc\u8bf4\u8bf4\u5916\u90e8\u65f6\u949f\u6a21\u5f0f1 \u548c\u5916\u90e8\u65f6\u949f\u6a21\u5f0f2 \u7684\u533a\u522b\uff1a <\/p>\n
\n\t\u4ece\u65f6\u949f\u7684\u6846\u56fe\uff1a<\/p>\n
\n\t![\"STM32\u5b9a\u65f6\u5668\u914d\u7f6e\u5b9a\u65f6\u65f6\u95f4\u603b\u7ed3\"](\"http:\/\/www.szryc.com\/uploads\/allimg\/190618\/1135162533-0.png\")
<\/p>\n
\n\t\u5f53\u9009\u62e9\u4e3a\u5916\u90e8\u4ece\u6a21\u5f0f1\u7684\u65f6\u5019\uff0c\u90a3\u4e48\u89e6\u53d1\u63a7\u5236\u5668\u5b8c\u5168\u88ab\u51b2\u6a21\u5f0f\u63a7\u5236\u88ab\u5360\u7528\u4e86\uff0c\u8fd9\u4e2a\u65f6\u5019\u5c31\u4e0d\u80fd\u7528\u5176\u5b83\u4ece\u6a21\u5f0f\uff08\u590d\u4f4d\u3001\u89e6\u53d1\u3001\u95e8\u63a7\uff09\u8fdb\u884c\u63a7\u5236\uff0c\u800cETR\uff0c\u89e3\u51b3\u4e86\u8fd9\u4e2a\u95ee\u9898\u3002 <\/p>\n
\n\t\u5b9a\u65f6\u5668\u5b9a\u65f6\u65f6\u95f4\u8ba1\u7b97\u539f\u7406\uff0c\u505a\u5b9a\u65f6\u5668\u7684\u5b9a\u65f6\u65f6\u95f4\u65f6\uff0c\u901a\u5e38\u662f\u9009\u62e9\u5185\u90e8\u65f6\u949f\uff0c\u4e0b\u9762\u4e3e\u4f8b\u6765\u8bf4\u660e\uff1a <\/p>\n
\n\t\u66f4\u5177\u914d\u7f6e\u65f6\u5b9a\u65f6\u5668\u7684\u8ba1\u6570\u6a21\u5f0f\uff0c\u4e00\u822c\u9009\u62e9\u4e3a\u5411\u4e0a\u8ba1\u6570\u6a21\u5f0f\uff0c\u8ba1\u6570\u5668\u6ea2\u51fa\u7136\u540e\uff0c\u5b9a\u65f6\u5668\u81ea\u52a8\u52a0\u8f7d\u8ba1\u6570\u5668\u7684\u503c\uff0c\u4ece\u96f6\u5f00\u59cb\u8ba1\u6570\uff0c\u5e76\u4e14\u4ea7\u751f\u4e00\u4e2a\u4e2d\u65ad\u3002<\/p>\n
\n\t![\"STM32\u5b9a\u65f6\u5668\u914d\u7f6e\u5b9a\u65f6\u65f6\u95f4\u603b\u7ed3\"](\"http:\/\/www.szryc.com\/uploads\/allimg\/190618\/1135164362-1.png\")
<\/p>\n
\n\t\u5206\u5c4f\u5668\uff1a<\/p>\n
\n\t![\"STM32\u5b9a\u65f6\u5668\u914d\u7f6e\u5b9a\u65f6\u65f6\u95f4\u603b\u7ed3\"](\"http:\/\/www.szryc.com\/uploads\/allimg\/190618\/11351643G-2.png\")
<\/p>\n
\n\t\u5206\u9891\u5668\u662f\u7528\u6765\u63cf\u8ff0\uff0c\u8ba1\u6570\u5668\u662f\u7ecf\u8fc7\u591a\u5c11\u5206\u9891\u3002 <\/p>\n
\n\t\u5b9a\u65f6\u5668\u65f6\u949f T6 <\/p>\n
\n\t\u9009\u62e9\u5b9a\u65f6\u5668\u5185\u90e8\u65f6\u949f\u4f5c\u4e3a\u8ba1\u6570\u5668\u7684\u65f6\u949f\u6e90\uff0c\u8fd9\u91cc\u5047\u8bbe\u4e3a21M\uff08F4\u7cfb\u7c7b\u53ef\u4ee5\u5206\u9891\u5230\u8fd9\u4e2a\u9891\u7387\uff09 <\/p>\n
\n\t\u4e5f\u5c31\u662f1S\uff0c\u53ef\u4ee5\u8ba1\u6570 21 000000\u4e2a\u8109\u51b2\uff1b \u4e00\u4e2a\u8109\u51b2\u5360\u7528\u65f6\u95f4 = 1\/21 000000 \uff08s\uff09; <\/p>\n
\n\t\u90a3\u4e48\u73b0\u5728\u5b9a\u65f6500us = 0.0005s; <\/p>\n
\n\t\u5176\u4e2d\u4e00\u79cd\u7ec4\u5408\u5982\u4e0b\uff1a \u91cd\u8f7d\u503c = 500*21-1; \u5206\u9891\u503c = 0; <\/p>\n","protected":false},"excerpt":{"rendered":"
stm32 \u5b9a\u65f6\u5668 \u4e2d\u65ad\u65f6\u95f4\u8ba1\u7b97 \u5206\u9891\u503c\u662f\u662f\u6307\u4f60\u5c06\u7cfb\u7edf \u65f6\u949f \u7684\u9891\u7387\u51cf\u5c0f\uff0c\u5047\u8bbe\u65f6\u949f\u9891\u7387\u662f72Mhz\uff0c\u7136\u540e\u5206\u9891\u503c\u662f7199\uff0c\u73b0\u5728\u4f60\u7684\u5b9a\u65f6\u5668\u503c\u5c31\u662f10kHz\uff0c\u8868\u793a\u6bcf\u8ba1\u4e00\u4e2a\u6570\uff0c\u7136\u540e\u8fc7\u4e861\/\uff0810^4\uff09\u79d2\uff0c\u7136\u540e<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"_links":{"self":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/2654"}],"collection":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2654"}],"version-history":[{"count":0,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/2654\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2654"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2654"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}