Stopping and Starting SAADC

[anasimtiaz]

What is the right way of stopping and then subsequently re-starting SAADC?

Using the saadc example, I want to be able to stop saadc when a certain pin is grounded or when a certain characteristic is received using BLE. I can see that there is an saadc_sampling_event_enable() function in the example which basically calls the nrf_drv_ppi_channel_enable() function. Is calling the equivalent ppi_disable function the right way to do this?

[Luccas]

Have you tried nrf_saadc_enable() and nrf_saadc_disable()? I remember using this functions in a similar case.

[run_ar]

Could this be the function you are looking for? nrf_drv_saadc_uninit

[anasimtiaz]

Thank you for the pointers. I believe that using the nrf_drv_saadc_uninit function would completely unintialise the SAADC and to start it again I will have to configure the channel and set up the buffers again. Is that correct?

The nrf_saadc_enable and nrf_saadc_disable looks like the one I am after. I will check this now. Or if someone can confirm it is indeed used to start and stop (without the need to re-init) then I can convert it to an answer?

[Luccas]

I use it to start and stop, but you can check there if it fits on your application =). And yes, using nrf_drv_saadc_uninit you will have to configure channels again and do an channel init.