看ST的官方文档AN2592 “如何使用STM32F101xx和STM32F103xx的时钟链接功能实现定时器的32位精度”,在2.2.3的最后有段话:Using this method, the lowest frequency that can be measured on STM32F10x, with
TIMxCLK equal to 72 MHz, is 17 MHz instead of 1098 Hz when a 16-bit timer is used. 1098Hz我知道怎么回事,17MHz是怎么来的呢?有没有大神研究过这个文档,请赐教! |
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官方笔误
http://www.amobbs.com/thread-3654573-1-1.html
原来是这个样子,谢谢!