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*pSpiTxBuf++ = CC2520_INS_SFLUSHRX; // get rid of this packet
*pSpiTxBuf-- = CC2520_INS_SFLUSHRX; // double flush [CC2520 Bug#1]
Can anyone explain to me what the above two lines are attempting to do? pSpiTxBuf is a uint8_t *
This is equivalent to:
(which would probably have been a clearer way to write the code in the first place).
i.e. it just sets two adjacent register values to CC2520_INS_SFLUSHRX.