DAC0 DMA on iMXRT1170

[Juozas]

Dear Forum,

We're trying to implement DAC0 DMA procedure with iMXRT1170-EVK. Reference manual states that DMA is supported but peripheral tool does not have such options:

 

We've noticed there's no example project in SDK with DAC0, so we tried to port it from K20 family. The functional diagram is very similar, however register maps differs.

Can someone provide an example or reference implementation of DAC0 working with DMA on iMXRT1170?

[_Leo_]

Hi,

Thank you so much for your interest in our products and for using our community.

DMA is supported in Buffered mode:

Regarding the comparison of the RT1170 DAC with the Kinetis DAC, at high level approach both modules seem similar, but the peripherals are not exactly the same.

And sorry for the inconvenience but there is no DAC-DMA example available for RTs.

Have a nice day!

[Juozas]

Ok, thanks. Do you have any tips on porting code from other board or example?

[_Leo_]

I would like to give you more but there are only the SDK examples for DMA and DAC separately as reference for the RT1170.

[Juozas · Accepted solution]

Ok, I'll try to follow this tutorial: https://community.nxp.com/t5/MCUXpresso-Config-Tools/eDMA-component-abilities-shown-on-ADC-measureme...