nRF5340 Direct Test Mode default output_power

[SJahnke]

Hello,

we are using ncs version 2.4.0 with nRF5340, so it's possible now to set the tx output power to +3dBm, without manually using the VREGRADIO register anymore, which is great. But we are recognized, that the default value after device reset is always set back to 0dBm. Is there a way to configure that default level to +3dBm in prj.conf of dtm software?

Thanks!

[haakonsh]

You can try to change v2.4.0\nrf\samples\bluetooth\direct_test_mode\src\dtm.c:399 from NRF_RADIO_MODE_BLE_1MBIT to NRF_RADIO_TXPOWER_POS3DBM, that should set +3dBm as the default output power at init. And the radio HAL will set VREGRADIO automatically.