Migrating SAADC Low Power from SDKv11 to v12

Question

I downloaded the nrf52 SAADC Low power project from the GitHub
 github.com/.../saadc_low_power 
I'm trying to migrate it over to version 12 of the SDK and I think I'm having problems in the sdk_config.h file. 
 The version 11 changed some RTC values in the nrf_drv_config.h file which is as follows below and I'm wondering how I can make the equivalent changes to the sdk_config.h file. 
 RTC0 Disabled 
 RTC1 Disabled 
 RTC2 Enabled 
 RTC2 Freq 32 
 NRF Max Latency US 2000 
 Version 11 config file
 nrf_drv_config.h

bjorn-spockeli · Accepted Answer

Hi Kevin, 
 A low power mode was added to the SAADC driver in SDK 12.x. You enable it by setting low_power_mode to 1 in the nrf_drv_saadc_config_t struct. 
 If you still want to port the GitHub example, then as you have coorectly pointed out, you have to edit the sdk_config.h file. I recommend that you start with the sdk_config.h file from the ble_app_template, which includes all the peripheral settings( the examples only include the peripherals they use). 
 If you plan on using the low power github example in an application that uses the S132 SoftDevice, then you should be aware that the SoftDevice uses the RTC0, and should therefore be enabled. You can see which Hardware peripherals that are used by the SD when it is enabled on this Infocenter page. 
 Best regards 
 Bjørn