STM32, how to capture events on both edges?

[Asantos]

Posted on July 28, 2011 at 02:35

Are there any way to configure the TIMx to capture events on both edges for the same input?

something like the configuration for capture pwm input. #about-pwm-input

[wangzhihai_138]

Posted on July 28, 2011 at 05:47

You can use PWM input mode. Use CCR1&CCR2 to configure it.

[wangzhihai_138]

Posted on July 28, 2011 at 05:54

[wangzhihai_138]

Posted on July 28, 2011 at 06:04

[laurie]

Posted on June 16, 2012 at 12:08

Hi,

I'm trying to do the same thing. I've tried changing CC1P in the interrupt routine so that the opposite edge then triggers the next interrupt. Did you find a solution?

[laurie]

Posted on June 17, 2012 at 05:32

In case you didn't get this solved you might find this link helpful:

https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/TIM_ICPolarity_BothEdge not available for most timers

and just change the setup to enable interrupts on CC1E (turn on CC1IE) as well. ...Laurie:{)