// This function will put the node into a low-duty checking mode to save power
void tdma_snooze()
{
int8_t v;
uint8_t i;
// stop the software watchdog timer so it doesn't interrupt
nrk_sw_wdt_stop(0);
// This flag is cleared only by the button interrupt
snoozing=1;
// Setup the button interrupt
nrk_ext_int_configure( NRK_EXT_INT_1,NRK_LEVEL_TRIGGER, &wakeup_func);
// Clear it so it doesn't fire instantly
EIFR=0xff;
nrk_ext_int_enable( NRK_EXT_INT_1);
// Now loop and periodically check for packets
while(1)
{
nrk_led_clr(RED_LED);
nrk_led_clr(GREEN_LED);
rf_power_up();
rf_rx_on ();
// check return from button interrupt on next cycle
if(snoozing==0 ) return;
tmp_time.secs=0;
tmp_time.nano_secs=10*NANOS_PER_MS;
nrk_led_set(RED_LED);
// Leave radio on for two loops of 10ms for a total of 20ms every 10 seconds
for(i=0; i<2; i++ )
{
v = _tdma_rx ();
if(v==NRK_OK) {
nrk_led_set(RED_LED);
nrk_ext_int_disable( NRK_EXT_INT_1);
nrk_sw_wdt_update(0);
nrk_sw_wdt_start(0);
return NRK_OK;
}
nrk_wait(tmp_time);
}
nrk_led_clr(RED_LED);
rf_power_down();
tmp_time.secs=10;
tmp_time.nano_secs=0;
nrk_sw_wdt_stop(0);
nrk_wait(tmp_time);
}
}
// Resets RF parameters to default values.
// Must be called before jumping to new firmware.
static void resetRF()
{
// PWR_UP = 0
rf_power_down();
// PRIM_RX = 0
//rf_set_as_tx();
// RF_CH = 0x02;
//rf_set_channel(reset_channel);
// AW = 11 (Default = 5 bytes)
// RX_ADDR_P0 = TX_ADDR = 0xE7E7E7E7E7
//rf_set_tx_address(reset_pipe_address,5);
//rf_set_rx_address(reset_pipe_address, 5, 0);
// ARD = 0000, ARC = 0011
//rf_set_auto_rtr(3, 250);
// RX_PW_P0 = 0x00
//rf_set_rx_payload_width(0, 0);
// Disable radio clock
rf_clock_disable();
}
void bmac_disable()
{
is_enabled=0;
rf_power_down();
}
void tdma_disable ()
{
tdma_is_enabled = 0;
rf_power_down ();
}
void deep_sleep_button()
{
int i,cnt;
nrk_int_disable();
nrk_eeprom_write_byte(EEPROM_SLEEP_STATE_ADDR,1);
nrk_led_set(0);
nrk_spin_wait_us(50000);
nrk_led_clr(0);
nrk_led_clr(1);
nrk_led_clr(2);
nrk_led_clr(3);
nrk_watchdog_disable();
nrk_int_disable();
_nrk_os_timer_stop();
nrk_gpio_direction(NRK_BUTTON, NRK_PIN_INPUT);
rf_power_down();
// Enable Pullup for button
//PORTD = 0xff;
nrk_gpio_set(NRK_BUTTON);
nrk_ext_int_configure( NRK_EXT_INT_1,NRK_LEVEL_TRIGGER, &wakeup_func);
EIFR=0xff;
nrk_ext_int_enable( NRK_EXT_INT_1);
nrk_int_enable();
DDRA=0x0;
DDRB=0x0;
DDRC=0x0;
ASSR=0;
TRXPR = 1 << SLPTR;
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
sleep_enable();
sleep_cpu();
// reboot
while(1) {
//printf( "awake!\r\n" );
nrk_led_clr(0);
nrk_led_clr(1);
nrk_led_set(1);
cnt=0;
for(i=0; i<100; i++ )
{
//if((PIND & 0x2)==0x2)cnt++;
if(nrk_gpio_get(NRK_BUTTON)==0)cnt++;
nrk_spin_wait_us(10000);
}
printf( "cnt=%d\n",cnt );
if(cnt>=50 ) {
// reboot
nrk_led_clr(1);
nrk_led_set(0);
nrk_eeprom_write_byte(EEPROM_SLEEP_STATE_ADDR,0);
nrk_spin_wait_us(50000);
nrk_spin_wait_us(50000);
nrk_watchdog_enable();
while(1);
}
nrk_led_clr(0);
nrk_led_clr(1);
TRXPR = 1 << SLPTR;
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
sleep_enable();
sleep_cpu();
}
}
void bmac_nw_task ()
{
int8_t v, i;
int8_t e;
uint8_t backoff;
nrk_sig_mask_t event;
while (bmac_started () == 0)
nrk_wait_until_next_period ();
//register the signal after bmac_init has been called
v = nrk_signal_register (bmac_enable_signal);
if (v == NRK_ERROR)
nrk_kprintf (PSTR ("Failed to register signal\r\n"));
backoff = 0;
while (1) {
#ifdef NRK_SW_WDT
#ifdef BMAC_SW_WDT_ID
nrk_sw_wdt_update (BMAC_SW_WDT_ID);
#endif
#endif
rf_power_up ();
if (is_enabled) {
v = 1;
#ifdef BMAC_MOD_CCA
if (rx_buf_empty == 1)
{
if (_bmac_rx () == 1) e = nrk_event_signal (bmac_rx_pkt_signal);
}
else
e = nrk_event_signal (bmac_rx_pkt_signal);
#else
if (rx_buf_empty == 1)
v = _bmac_channel_check ();
// If the buffer is full, signal the receiving task again.
else
e = nrk_event_signal (bmac_rx_pkt_signal);
// bmac_channel check turns on radio, don't turn off if
// data is coming.
if (v == 0) {
if (_bmac_rx () == 1) {
e = nrk_event_signal (bmac_rx_pkt_signal);
//if(e==NRK_ERROR) {
// nrk_kprintf( PSTR("bmac rx pkt signal failed\r\n"));
// printf( "errno: %u \r\n",nrk_errno_get() );
//}
}
//else nrk_kprintf( PSTR("Pkt failed, buf could be corrupt\r\n" ));
}
#endif
if (tx_data_ready == 1) {
_bmac_tx ();
}
rf_rx_off ();
rf_power_down ();
//do {
nrk_wait (_bmac_check_period);
// if(rx_buf_empty!=1) nrk_event_signal (bmac_rx_pkt_signal);
//} while(rx_buf_empty!=1);
}
else {
event = 0;
do {
v = nrk_signal_register (bmac_enable_signal);
event = nrk_event_wait (SIG (bmac_enable_signal));
}
while ((event & SIG (bmac_enable_signal)) == 0);
}
//nrk_wait_until_next_period();
}
}
