Automatic Generation of FCS

PHY_SET_TX_AUTO_CRC

The radio transceiver is able to automatically calculate the FCS of a frame, to be transmitted. Therefore, the FCS does not need to be downloaded with the frame buffer write command (see trx_frame_write). The automatic FCS calculation can be enabled, if a 1 is written into the sub register SR_TX_AUTO_CRC_ON.

Parameters:

txcrc

If set to 1, the FCS is calculated automatically. Otherwise, the frame will be transmitted as it was downloaded.

   0   1   2                        L-1  L
 +---+---+---+---+---+---+---+/.../+---+---+
 | L | D | D | D | D | D | D |     | F | F |
 +---+---+---+---+---+---+---+/.../+-o-+-o-+
                                     +---+
                        auto generated FCS if txcrc=1
                       or user-provided data if txcrc=0

Code example

    /* AT86RF212::[CONFIG] */
    trx_bit_write(SR_TX_AUTO_CRC_ON, txcrc);