The CC1000 and CC2420 radios are completely different, with no relation to
each other.
Disabling CCA is easy to do in TinyOS 2.x: you just capture requestCca()
event in the RadioBackoff interface, provided by CC2420CsmaC, and call back
within that event to setCca(FALSE).
TinyOS 1.x is no
Thanks very much for David's advice. I am installing modified version
of CountDual application on one mote as the transmitter, and the
modified version of TOSBase on another as the receiver. I found the
CountDual application is using the *GenericComm* component, is that
different from the
