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S32K144 ADC with single DMA transfer after multiple channels conversion.

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S32K144 ADC with single DMA transfer after multiple channels conversion.

‎08-08-2019 12:16 PM
1,521 Views
mictec
Contributor II

Hello All,

I'm going to configure ADC module in such a way, that multiple channels are being triggered sequentially by PDB and then the single DMA transfer takes place in order to copy conversion results to given address. How to achieve such functioning when it comes to DMA configuration? Currently I'm able to use PDB for triggering consecutive ADC channels, but since some time ago I'm stuck with DMA related part..

Best regards,

Mic

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‎08-09-2019 01:38 AM
1,306 Views
PetrS
NXP TechSupport
NXP TechSupport

Hi,

I gave some hints here https://community.nxp.com/thread/509942 

BR, Petr

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‎08-15-2019 03:10 AM
1,306 Views
mictec
Contributor II

Hi Petr,

thank you for your help. I had a look at it and I saw that in this example DMA is triggered each time some ADC channel completes the conversion. How to trigger DMA only once, when a couple of ADC channels completed the conversion?

Best regards,

Mic

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