Hi,
I've read the datasheet for the CC2420 chip and it appears that on the receiver
side there is one bit signifying the CRC pass/fail. I am trying to find where
this bit is checked to disable the CRC checking. So far, I found two instances
that seem to check the CRC.
In lines 171-173 of CC2420ActiveMessageP.nc, the code is:
if(!(call CC2420PacketBody.getMetadata(msg))->crc) {
return msg;
}
Line 296 of CC2420ReceiveP.nc also seems to check the CRC:
if ( ( buf[ rxFrameLength ] >> 7 ) && rx_buf ) {
Can anyone explain what these two sets of coding do, and let me know if there
are any other places the crc bit is checked?
Thanks,
Joe
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