STM32F407 Dual DAC Independent Trigger Sources

yousef · ‎2016-09-26

Posted on September 27, 2016 at 08:54

Hello,

I have a problem for using both DACs of STM32F407 with independent trigger sources.

What I did was directing DAC1 for Timer6 and DAC2 for Timer7 but they are still both triggered by one source (Timer6) and not independent as described. I set TSEL1 and TSEL2 for the sources accordingly (TIM6_TRGO, TIM7_TRGO).

I tested both Timer Interrupts to be invoked as working.

DMA is not used in my case.

Are there any known issues for this topic?

Thanks in advance, Sebastian.

mark239955_stm1 · ‎2016-09-27

Posted on September 27, 2016 at 14:12

If you're not using DMA, why are you triggering the DAC's from timers? What is it that you're trying to achieve?

Tesla DeLorean · ‎2016-09-27

Posted on September 27, 2016 at 17:49

Are there any known issues for this topic?

Haven't heard of any, and don't plan to independently verify. If you want someone to review the code for errors/issues, you'll want to post a sufficiently complete example.

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