sorry, I meant something like this:
event result_t Timer.fired() {
/* First method */
uint8_t status;
uint16_t rssi_reg;
status = call HPLChipcon.cmd(CC2420_SNOP);
while( !((status >> CC2420_RSSI_VALID) & 0x01) ) {
status = call HPLChipcon.cmd(CC2420_SNOP);
}
rssi_reg = call HPLChipcon.read(CC2420_RSSI);
/* Second method */
if( TOSH_READ_RADIO_CCA_PIN() )
// do something
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