Double Edge PWM: STM32F4 & CubeMX

Forum|Forum|9 years ago
May 17, 2017
8 replies
1897 views

Posted on May 17, 2017 at 11:16

Hi All,

I would like to set my STM32F4 Nucleo to do double edge PWM, but for the life of me I cannot figure out how to do it. More specifically I am trying to do it on three channels of TIM1. To put it visually, I am trying to do something like this:

Thanks for you time.

Dylan

This topic has been closed for replies.

Nesrine M_O

Associate

Posted on May 17, 2017 at 12:09

Hi

Reynolds.Dylan

,

Try to refer to

http://www.st.com/content/ccc/resource/technical/document/application_note/group0/91/01/84/3f/7c/67/41/3f/DM00236305/files/DM00236pdf/jcr:content/translations/en.DM00236pdf

application note it may help you

-Nesrine-

dylanAuthor

Associate II

Posted on May 17, 2017 at 12:15

Hi

ELMHIRI.Syrine

,

Thank you for the response. I have had a look at the cook book but it is gibberish to me, I find it very difficult to follow. Perhaps you could refer me to the section that would aid me?

Thanks,

Dylan

Uwe Bonnes

Chief

Posted on May 17, 2017 at 22:07

You can't do this with a single channel of some TIMer. Maybe a HRTIM channel can do that. Or you use 2 channels and connect both channels logical.

dylanAuthor

Associate II

Posted on May 17, 2017 at 23:15

Hi

Bonnes.Uwe

‌,

Thanks for the response. Yes, my progress today has shown that you are right. For starters, this is not possible with the STM32F4 as it does not incorporate the new timer features of newer micros. The STM32L4 timers do have this features and so I have migrated to one of these. I am still working out how to use it, but at least I know it is there. This is documented in AN4013: STM32 Cross-Series Timers Overview.

Thanks,

Dylan