如何判断TIM1_ETR输入是否缩短了TIM1上生成的PWM信号？

Ciao Richard
 
 阅读参考手册我看到可以在TRGI上启用中断（TIM1_IER位TIE），因此如果在TIM1_SMCR中设置输入触发（TRGI = ERTF），那么当ETR作用于PWM时可以产生中断信号。
 
 如果有效，请告诉我
 再见
 梁咏琪



以下为原文





Ciao Richard

Reading the reference manual I see that is possible to enable the interrupt on TRGI (TIM1_IER bit TIE), so if you set the input trigger (TRGI = ERTF) in the TIM1_SMCR, then you can have an interrupt when the ETR acts on the PWM signals.

Let me know if it works
Ciao
Gigi