/**
\brief The program starts executing here.
*/
int mote_main(void) {
// initialize board
board_init();
// switch radio LED on
leds_radio_on();
// prepare bsp_timer
bsp_timer_set_callback(bsp_timer_cb_compare);
// prepare radiotimer
radiotimer_setOverflowCb(radiotimer_cb_overflow);
radiotimer_setCompareCb(radiotimer_cb_compare);
// kick off first bsp_timer compare
bsp_timer_scheduleIn(BSP_TIMER_PERIOD);
// start periodic radiotimer overflow
radiotimer_start(RADIOTIMER_OVERFLOW_PERIOD);
// kick off first radiotimer compare
app_vars.radiotimer_num_compares_left = RADIOTIMER_NUM_COMPARES-1;
app_vars.radiotimer_last_compare_val = RADIOTIMER_COMPARE_PERIOD;
radiotimer_schedule(app_vars.radiotimer_last_compare_val);
while (1) {
board_sleep();
}
}
void radio_txEnable() {
// change state
radio_vars.state = RADIOSTATE_ENABLING_TX;
// wiggle debug pin
debugpins_radio_set();
leds_radio_on();
// change state
radio_vars.state = RADIOSTATE_TX_ENABLED;
}
void radio_txEnable() {
// change state
radio_vars.state = RADIOSTATE_ENABLING_TX;
// wiggle debug pin
debugpins_radio_set();
leds_radio_on();
// I don't fully understand how the CC2420_STXCA the can be used here.
// change state
radio_vars.state = RADIOSTATE_TX_ENABLED;
}
void radio_rxEnable() {
// change state
radio_vars.state = RADIOSTATE_ENABLING_RX;
//enable radio interrupts
// do nothing as we do not want to receive anything yet.
// wiggle debug pin
debugpins_radio_set();
leds_radio_on();
// change state
radio_vars.state = RADIOSTATE_LISTENING;
}
void radio_txEnable() {
// change state
radio_vars.state = RADIOSTATE_ENABLING_TX;
// wiggle debug pin
debugpins_radio_set();
leds_radio_on();
//do nothing -- radio is activated by the strobe on rx or tx
//radio_rfOn();
// change state
radio_vars.state = RADIOSTATE_TX_ENABLED;
}
void radio_txEnable() {
// change state
radio_vars.state = RADIOSTATE_ENABLING_TX;
// wiggle debug pin
debugpins_radio_set();
leds_radio_on();
// turn on radio's PLL
radio_spiWriteReg(RG_TRX_STATE, CMD_PLL_ON);
while((radio_spiReadReg(RG_TRX_STATUS) & 0x1F) != PLL_ON); // busy wait until done
// change state
radio_vars.state = RADIOSTATE_TX_ENABLED;
}
void radio_rxEnable() {
// change state
radio_vars.state = RADIOSTATE_ENABLING_RX;
// put radio in reception mode
radio_spiWriteReg(RG_TRX_STATE, CMD_RX_ON);
// wiggle debug pin
debugpins_radio_set();
leds_radio_on();
// busy wait until radio really listening
while((radio_spiReadReg(RG_TRX_STATUS) & 0x1F) != RX_ON);
// change state
radio_vars.state = RADIOSTATE_LISTENING;
}
void radio_rxEnable() {
// change state
radio_vars.state = RADIOSTATE_ENABLING_RX;
// put radio in reception mode
radio_spiStrobe(CC2420_SRXON, &radio_vars.radioStatusByte);
radio_spiStrobe(CC2420_SFLUSHRX, &radio_vars.radioStatusByte);
// wiggle debug pin
debugpins_radio_set();
leds_radio_on();
// busy wait until radio really listening
while (radio_vars.radioStatusByte.rssi_valid==0) {
radio_spiStrobe(CC2420_SNOP, &radio_vars.radioStatusByte);
}
// change state
radio_vars.state = RADIOSTATE_LISTENING;
}
/**
\brief The program starts executing here.
*/
int mote_main(void) {
// initialize board
board_init();
// prepare radiotimer
radiotimer_setOverflowCb(cb_overflow);
radiotimer_setCompareCb(cb_compare);
// kick off first compare
app_vars.num_compares_left = RADIOTIMER_NUM_COMPARES-1;
app_vars.last_compare_val = RADIOTIMER_COMPARE_PERIOD;
// start periodic overflow
radiotimer_start(RADIOTIMER_OVERFLOW_PERIOD);
leds_radio_on();
radiotimer_schedule(app_vars.last_compare_val);
while (1) {
board_sleep();
}
}
void leds_all_on()
{
leds_error_on();
leds_sync_on();
leds_radio_on();
}
void board_init() {
uint16_t i,j;
//enable all port clocks.
SIM_SCGC5 |= (SIM_SCGC5_PORTA_MASK
| SIM_SCGC5_PORTB_MASK
| SIM_SCGC5_PORTC_MASK
| SIM_SCGC5_PORTD_MASK
| SIM_SCGC5_PORTE_MASK );
//init all pins for the radio
//SLPTR
#ifdef TOWER_K20
PORTB_PCR3 = PORT_PCR_MUX(1);// -- PTB3 used as gpio for slptr
GPIOB_PDDR |= RADIO_SLPTR_MASK; //set as output
//RADIO RST -- TODO in the TWR change it to another pin! this is one of the leds.
PORTC_PCR9 = PORT_PCR_MUX(1);// -- PTC9 used as gpio for radio rst
GPIOC_PDDR |= RADIO_RST_MASK; //set as output
#elif OPENMOTE_K20
PORTD_PCR4 = PORT_PCR_MUX(1);// -- PTD4 used as gpio for slptr
GPIOD_PDDR |= RADIO_SLPTR_MASK; //set as output
//RADIO RST
PORTD_PCR5 = PORT_PCR_MUX(1);// -- PTD5 used as gpio for radio rst
GPIOD_PDDR |= RADIO_RST_MASK; //set as output
#endif
PORT_PIN_RADIO_RESET_LOW();//activate the radio.
PORT_PIN_RADIO_SLP_TR_CNTL_LOW();
//ptc5 .. ptc5 is pin 62, irq A
enable_irq(RADIO_EXTERNAL_PORT_IRQ_NUM);//enable the irq. The function is mapped to the vector at position 105 (see manual page 69). The vector is in isr.h
//external port radio_isr.
PORTC_PCR5 = PORT_PCR_MUX(1);// -- PTC5 used as gpio for radio isr through llwu
GPIOC_PDDR &= ~1<<RADIO_ISR_PIN; //set as input ==0
PORTC_PCR5 |= PORT_PCR_IRQC(0x09); //9 interrupt on raising edge. page 249 of the manual.
PORTC_PCR5 |= PORT_PCR_ISF_MASK; //clear any pending interrupt.
llwu_init();//low leakage unit init - to recover from deep sleep
debugpins_init();
leds_init();
bsp_timer_init();
uart_init();
radiotimer_init();
spi_init();
radio_init();
leds_all_off();
leds_sync_on();
leds_radio_on();
leds_debug_on();
leds_error_on();
leds_all_off();
debugpins_fsm_clr();
}
