nrf_saadc_channel_config_t channel_config_0 = NRF_DRV_SAADC_DEFAULT_CHANNEL_CONFIG_SE(NRF_SAADC_INPUT_AIN0); nrf_saadc_channel_config_t channel_config_1 = NRF_DRV_SAADC_DEFAULT_CHANNEL_CONFIG_SE(NRF_SAADC_INPUT_AIN1); err_code = nrf_drv_saadc_init(NULL, saadc_callback); APP_ERROR_CHECK(err_code); err_code = nrf_drv_saadc_channel_init(1, &channel_config_0); APP_ERROR_CHECK(err_code); err_code = nrf_drv_saadc_channel_init(2, &channel_config_1); APP_ERROR_CHECK(err_code); err_code = nrf_drv_saadc_buffer_convert(m_buffer_pool, 64); APP_ERROR_CHECK(err_code);