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When sending duty cylcle values to PWM output with DMA some values get skipped

JKoro.1
Associate

‎2020-08-19 10:26 AM

When I try to change the duty cycle with DMA I notice that some values are not correct some of the time. I know that I am sinding the right values, but the PWM signal is not correct. Is this a problem with the preload registers and how can I set them in a better way so that this does not happen?

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2 REPLIES 2
waclawek.jan
Guru

‎2020-08-19 11:58 AM

Read out and post the TIM, DMAMUX and DMA registers content.

JW

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JKoro.1
Associate
In response to waclawek.jan

‎2020-08-19 12:59 PM

Well, I just switched the timer generating the PWM signal from TIM2 to TIM1 and it seems to work. Thanks for being interested.

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