TIMx External trigger

[baiyongchen]

Posted on December 28, 2013 at 15:22

what is the difference betwee TIM2_CH1_ETR and TIM2_ETR? I'v only found TIM2 has the TIM2_CH1_ETR, all other TIMs, such as TIM1, TIM3, TIM8, only have TIMx_ETR.

I'v also found the problem that only TIM2 can be triggered by TI1F_ED. But in reference manual we can see TIM1/TIM8, TIM2~TIM5 all can be triggered by ETR. Could someone tell me why?  

[Tesla DeLorean]

Posted on December 28, 2013 at 17:10

In that case CH1 and ETR share a common pin