How to configure the DMA in ADC and how to use ASYNC API in ADC

[jyoti yadav]

How to configure the DMA in ADC and how to use ASYNC API in ADC .please provide any sample example code for ASYNC ADC and ADC DMA

[haakonsh]

What SDK are you using, nRF5_SDK or nRF Connect SDK?

DMA is always enabled for the SAADC peripheral. 

[jyoti yadav]

DMA is always enabled for the SAADC peripheral. Where i can get the DMA related driver code in which file ?I want to understand the flow of the code where the DMA is enabled . Do we need to add extra config for Enabling DMA?

[haakonsh]

jyoti yadav said:

Where i can get the DMA related driver code in which file ?

I'll try to create a sample. I'll need to time create, debug, and test it before I can share it. 

jyoti yadav said:

Do we need to add extra config for Enabling DMA?

No, the SAADC can only be used with DMA. 

[haakonsh]

You can find the example at https://github.com/haakonsh/NCS_SAADC_example/tree/master. 

[jyoti yadav]

Hi,

No not about the sample, i just need to understand where in SAADC driver code, is DMA enabled..?

As, I cannot see DMA related code anywhere in SAADC driver code,

Kindly point me to the same

[haakonsh]

DMA is always enabled, the SAADC cannot operate in any other way.