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杰理之定时器捕获(timer_cap.c)使用注意事项【篇】
2022-06-25 17:06:00 【Rambo-Lamborghini】
、定时器捕获最高频率主要受时钟源(一般选 STD24、STD48、LSB(参考问题 7 中的图))、分频系数(最小不 能小于 2 分频)、中断函数(提高中断优先级、把中断函数放 RAM)影响. 3、要达到最高捕获速度可以设置系统时钟 128Mhz 以上(LSB 64Mhz)、时钟源选择 LSB、分频系数选二分频、 重写中断函数(公版中断函数是轮询的)、把中断函数放 RAM
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