Configuration of Start-of-Frame Delimiter

SFD_CFG

The radio transceiver generates and transmits the SHR automatically. It is possible to configure the start-of-frame delimiter (SFD), which terminates the SHR, and is transmitted right after the preamble. Thus, non-standard compliant SFDs can be implemented.

Note:

• Transmitter and receiver have to be configured with the same SFD value.
• In order to ensure a reliable frame start detection, the lower 4 bits of the SFD value shall not be set to 0.

Code example

    /* AT86RF231::[CONFIG] */
    trx_reg_write(RG_SFD_VALUE, sfd);

SFD_CFG

The currently configured PSDU data rate can be read using this sequence.

Returns:

sfd The desired SFD.

Code example

    /* AT86RF231::[CONFIG] */
    sfd = trx_reg_read(RG_SFD_VALUE);

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