watchdog interaction with sleep

[jhoward88]

I'm using something like this and getting more reboots than I should.  I suspect something is not ok about using wdt disable/enable cycles like this.
Can anyone give me some advice on it?

Code Select Expand

void loop() {
    wdt_enable(WDTO_8S);   

    if(pinChangeInterruptFlag) {   // we can get interrupted any time, but mostly just 8 second sleeps and wakes
       do_small_stuff()   //takes a couple of seconds

       if (extraStuffNeeded ){     //happens sometimes. uh oh, this might take 6 seconds...
    		wdt_disable();         // so lets give ourselves another 8 
    		wdt_enable(WDTO_8S);
    		go_do_extra stuff(); 
    	}
    }


    wdt_disable();
    radio.sleep();    
    LowPower.powerDown(SLEEP_8S, ADC_OFF, BOD_OFF);
}

Thanks,
Jerry

[TomWS]

I'm thinking you didn't post all of the code so hard to tell what's wrong.