I have added to the cc2420 driver in tinyos-2.x to set the CCA threshold to an arbitrary value of my choosing (CCA_THR field of the RSSI register as the cc2420 datasheet calls it). I know what I am succeeding in setting it, because I can read it back from the RSSI register itself. However, it does not seem to have any effect on the radios operation, as a test I set the cca threshold to -128, so it would be impossible for the cca check to pass on an STXONCCA strobe (the rssi value cannot be lower than this, being a signed 8-bit integer).
However, packets still get sent... am I missing something here? Has anyone had any experience doing this kind of thing? Alan Medlar _______________________________________________ Tinyos-help mailing list [EMAIL PROTECTED] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help