编码器速度和方向检测，371电机方向与速度检测，stm32编码器接口模式

xueshawu

aosini 发表于 2015-4-6 08:16
会的

arr 还能是负值？ 别搞笑啊

In upcounting mode, the counter counts from 0 to the auto-reload value (content of the
TIMx_ARR register), then restarts from 0 and generates a counter overflow event.

In downcounting mode, the counter counts from the auto-reload value (content of the
TIMx_ARR register) down to 0, then restarts from the auto-reload value and generates a
counter underflow event.

还是不要误导别人比较好，