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STM32F407 TIM2_CH1_ETR

Question asked by Kozel on Aug 20, 2014
Latest reply on Aug 20, 2014 by Clive One
Maybe this is explained somewhere in the RM, but because I didn't find the answer with a brief study I will try if the forum can help...

So the question is about the alternate function pin named TIM2_CH1_ETR. I want to use this pin as the second interface to an incremental encoder (the other is TIM2_CH2), but this extra ETR suffix confuses me a bit. If I understand correctly ETR stands for external trigger, which actually I don't need in my application. So somehow the ETR function and normal TIM2_CH1 capture input are multiplexed to the same pin, but is it possible to configure the timer such a way that the ETR function is not used?

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