static void hw_setup()
{
- wdt_enable(WDTO_1S);
-
init_battery();
init_pwm();
init_adc();
susp_adc();
susp_tmr();
susp_gpio();
+ susp_ambient();
susp_buttons();
-
- wdt_disable();
}
-void power_down()
+void power_down(unsigned char err)
{
hw_suspend();
do {
+ if (err)
+ gpio_set(0, 1);
+
// G'night
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
sleep_enable();
int main(void)
{
- init_log();
+ unsigned char mcusr_save;
+
+ // disable the WDT if running
+ wdt_reset();
+ mcusr_save = MCUSR;
+ MCUSR = 0;
+ wdt_disable();
+
+ if (mcusr_save & _BV(WDRF)) // was watchdog reset?
+ gpio_set(0, 1);
+
+ init_log(mcusr_save);
power_usi_disable(); // Once for lifetime
ACSRA |= _BV(ACD); // disable analog comparator
log_set_state(3);
hw_setup();
- power_down();
+ power_down(mcusr_save & _BV(WDRF));
sei();
#if 1
while (1) {
- wdt_reset();
- sleep_mode();
+ cli();
+ if (TIMER1_IS_ON()) {
+ set_sleep_mode(SLEEP_MODE_IDLE);
+ } else if (adc_is_on) {
+ set_sleep_mode(SLEEP_MODE_ADC);
+ } else {
+ set_sleep_mode(SLEEP_MODE_PWR_DOWN);
+ }
+
+ sleep_enable();
+ // keep BOD active, no sleep_bod_disable();
+ sei();
+ sleep_cpu();
+ sleep_disable();
}
#endif