C++ (Cpp) wdt_intr_enable Examples

Example #1

File: suspend.c Project: 0mark/tmk_keyboard

void suspend_power_down(void)
{
#ifdef BACKLIGHT_ENABLE
    backlight_set(0);
#endif
#ifndef NO_SUSPEND_POWER_DOWN
    // Enable watchdog to wake from MCU sleep
    cli();
    wdt_reset();

    // Watchdog Interrupt and System Reset Mode
    //wdt_enable(WDTO_1S);
    //WDTCSR |= _BV(WDIE);
    
    // Watchdog Interrupt Mode
    wdt_intr_enable(WDTO_120MS);
    
    // TODO: more power saving
    // See PicoPower application note
    // - I/O port input with pullup
    // - prescale clock
    // - BOD disable
    // - Power Reduction Register PRR
    // sleep in power down mode
    set_sleep_mode(SLEEP_MODE_PWR_DOWN);
    sleep_enable();
    sei();
    sleep_cpu();
    sleep_disable();

    // Disable watchdog after sleep
    wdt_disable();
#endif
}

Example #2

File: suspend.c Project: Eleuin/tmk_keyboard

static void power_down(uint8_t wdto)
{
#ifdef PROTOCOL_LUFA
    if (USB_DeviceState == DEVICE_STATE_Configured) return;
#endif
    wdt_timeout = wdto;

    // Watchdog Interrupt Mode
    wdt_intr_enable(wdto);

    // TODO: more power saving
    // See PicoPower application note
    // - I/O port input with pullup
    // - prescale clock
    // - BOD disable
    // - Power Reduction Register PRR
    set_sleep_mode(SLEEP_MODE_PWR_DOWN);
    sleep_enable();
    sei();
    sleep_cpu();
    sleep_disable();

    // Disable watchdog after sleep
    wdt_disable();
}