Interleaved ADC+DMA, KE14F

[StanleyH]

Hi Support team,

  Our customer hopes to use two channels of ADC with DMA, and the two ADC+DMA interleave. The ADC is triggered

by a PWM which is used to energize a coil. Please refer the illustration below.

  Because can't find a similar use case in our application notes or example code, need your support to suggest a solution and nice to have a workable sample code. Thanks a lot.

[nxf47720]

Hi StanleyH,

I think the method to solve this question as below,

1. The LPIT is configured as periodic counter which will output pre-trigger and trigger signal to TRGMUX periodically.
2. the ADC is triggered by TRGMUX .
3. configure DMA channel to get the ADC conversion result .

I will provide relevant reference demo as soon as possible.

Best regards

Adision Zhang