nrf52832 saadc bit resolution change

[sree]

now i work with nrf52832 saadc sample program. i have to change saadc resolution into 14bit. what changes i need to do?

[Simonr]

Hi

To change the SAADC resolution you will have to change the SAADC_CONFIG_RESOLUTION in sdk_config.h

Please note that there are two SAADC_CONFIG_RESOLUTION defines. One NRFX and one legacy. Change both of these to the same thing just to make sure you change the correct one.

Best regards,

Simon

[sree]

Hi 

nrf_drv_saadc_config_t saadc_config = NRF_DRV_SAADC_DEFAULT_CONFIG;
saadc_config.resolution = NRF_SAADC_RESOLUTION_12BIT;

err_code = nrf_drv_saadc_init(&saadc_config, saadc_callback);
APP_ERROR_CHECK(err_code);

add this in initialisation part ,then can change the SAADC resolution in nRF52832

[Simonr]

Hi

You shouldn't have to do all that as the edits in sdk_config.h should be sufficient, but if it works for you I'm glad!

Best regards,

Simon