Transmit Power Setting

For each TX output power value between -11dBm and 11dBm the apropriate value for the register RG_PHY_TX_PWR can be retrieved from table 7-15 (Recommended Mapping of TX Power, Frequency Band, and PHY_TX_PWR) in the AT86RF212 datasheet.

Parameters:

txpower

power level index retrieved from table 7-15 (Recommended Mapping of TX Power, Frequency Band, and PHY_TX_PWR) in the AT86RF212 datasheet.

Note:

For a correct adjustment of the power level, the parameter gctxoffset have to be configured depending on the selected Physical Layer Mode.

Use Cases:

• PHY_SET_TRANSMIT_POWER
• PHY_GET_TRANSMIT_POWER

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PHY_SET_TRANSMIT_POWER

Note:

Additionally to the [CONFIG] states, the TX power level can also be changed in RX_AACK_ON in order to reduce the transmit power for an acknowledgement frame.

Code example

    /* AT86RF212::[CONFIG] */
    trx_reg_write(RG_PHY_TX_PWR, txpower);

PHY_GET_TRANSMIT_POWER

This sequence reads the power level index from the register RG_PHY_TX_PWR.

Return values:

txpower

The power level index value can be converted back to a dBm value by reverse applying the table 7-15 (Recommended Mapping of TX Power, Frequency Band, and PHY_TX_PWR) in the AT86RF212 datasheet.

Code example

    /* AT86RF212::[ACTIVE] */
    txpower = trx_reg_read(RG_PHY_TX_PWR);