PROCESS_THREAD(interferer_example, ev, data)
{
PROCESS_EXITHANDLER()
PROCESS_BEGIN();
static struct etimer et;
//powertrace_start(CLOCK_SECOND * 2);
// Initial configurations on CC2420: channel and tx power
watchdog_stop();
cc2420_set_txpower(power);
cc2420_set_channel(26);
//printf("interfering with periodic interference\n");
// Continuous Interference
CC2420_SPI_ENABLE();
//SPI_SET_UNMODULATED(0x1800,0x0100,0x0508,0x0004);
SPI_SET_MODULATED(0x050C);
//powertrace_start(CLOCK_SECOND*2);
while(1){
for(power=3; power<32; power+=4){
SPI_SET_TXPOWER((0xa0ff & 0xffe0) | (power & 0x1f));
etimer_set(&et, CLOCK_SECOND/1000);
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
//printf ("transmit power = %d\n",power);
}
for(power=27; power>3; power-=4){
SPI_SET_TXPOWER((0xa0ff & 0xffe0) | (power & 0x1f));
etimer_set(&et, CLOCK_SECOND/1000);
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
//printf ("transmit power = %d\n",power);
}
for(power=3; power<32; power+=2){
SPI_SET_TXPOWER((0xa0ff & 0xffe0) | (0 & 0x1f));
etimer_set(&et, CLOCK_SECOND/1000);
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
//printf ("transmit power = %d\n",power);
}
}
CC2420_SPI_DISABLE();
void powertrace_stop(void);
PROCESS_WAIT_EVENT();
PROCESS_END();
}
// Sets the transmission power to pow
void power_jammer(int pow){
// 0xa0ff is the initial value of the CC2420_TXCTRL register measured by me
SPI_SET_TXPOWER((0xa0ff & 0xffe0) | (pow & 0x1f));
}
