SAADC Event produced by uninit cause SAADC to go back to IDLE mode

[ibrahim upright]

Hi ,
I have some issues with the ADC. When moving in and out from low power mode the ADC isn’t working correctly.
I am using the nrfx_saadc driver. When moving to low power mode I use the nrfx_saadc_uninit function and when moving out from low power mode I use the nrfx_saadc_init function. I noticed that the ADC isn’t responding when I call nrf_drv_saadc_sample as it used to before the uninit-init cycle.
After debugging I noticed that this happen due to the NRF_SAADC_EVENT_STOPPED event being triggered by nrfx_saadc_uninit. I used nrf_saadc_event_clear(NRF_SAADC_EVENT_STOPPED) to get the ADC to function properly.
Is there anything else that is required for the ADC to work properly after uninit-init cycle?

I am using NRF52832 using a code Based on the freeRTOS heart rate example code from SDK15.

Thank a lot 

Ibrahim 

[haakonsh]

Hmm that's strange, 'nrfx_saadc_init' calls 'nrf_saadc_event_clear(NRF_SAADC_EVENT_STOPPED)' itself. 
See line 240 of nrfx_saadc.c of SDK15.3

[danny habot]

Just checked, and it seems that it was added on 15.3 and wasn't there on 15.0 which is the one we are working on. so that explain that :) 

I have added it. do you have a list of bugfixes like that? it would be very helpful for us to keep updating without changing the full sdk.

Thanks! 

[haakonsh]

It should be in the Release Notes in the Introduction chapter of each SDK, but I can't find this change, strange.