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McMax · 2024-06-16

Hi all, I need to generate a DAC output which is operating on 2 quadrants and the quadrants may be asymmetrical with respect to both the duty cycle and the amplitude. Attached a picture which better explains what I need. MCU STM32F446RE DAC OUT1 on p...

McMax · 2024-06-22

Here the init of the involved Timers + the 3 instructions used to start everything. The PWM start for TIM2 is used only for debug purposes so I can see PMW signal and measure the difference.It is maybe that I have to start the DAC DMA after the maste...

McMax · 2024-06-21

Hello again,I noticed that, despite the 2 timers are synchronized, there is a delay of TIM2 (slave) with respect to TIM1 (master). Please have a look at the attached picture to better understand the issue.I think we have 2 problems here:- TIM2 is not...

McMax · 2024-06-19

and it works!TIM1 is used as master with PWM output and TIM2 is used as slave to trigger the DAC. I had some issues at the beginning because I realize later on that TIM1 is attached to APB2 with double the clock with respect to TIM2 which is attached...

McMax · 2024-06-17

Thanks Jan, I like the idea of the master/slave timer. TIM2 was used to trigger the ADC for other purposes so I changed the architecture and now I'm using TIM2 (as slave) for the DAC, triggered by TIM1 (as master) that I'm still using the generate th...

McMax · 2024-06-11

I had the same issue and solved by re-installing CubeMX for all users instead of just myself. Not sure if that was the issue but after uninstall and reinstall 3 times I tried this and it worked out.

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STM32F446 DAC DMA with asymmetrical output

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