nRF52840 BLE and 802.15.4 concurrent transmit power

[Steve Karg]

We are using nRF52840 with BLE and 802.15.4 concurrent with S140 SoftDevice.  There are two functions to set the transmit power for each radio protocol:

sd_ble_gap_tx_power_set(uint8_t role, uint16_t handle, int8_t tx_power)

void nrf_802154_pib_tx_power_set(int8_t dbm)

Are they independent, or do they affect the other when set?

[Pratyush Dave]

Steve,

These two are independent. The sd_ble_gap_tx_power_set() function only controls the Tx power of the radio in BLE operation. When the SD gives a "timeslot" for the radio to be used in the 802.15.4 mode, the nrf_802154_pib_tx_power_set() API controls the Tx power of the radio only in this mode of operation.