I want to use the watchdog timer to blinks some LEDs on our board. I have set it up and it works fine, except I want the LEDs to blink under certain conditions. I have declared a global variable to be used within the watchdog interrupt to tell when to blink the LEDs and when not to blink the LEDs. My problem is that I can not change the variable after the watchdog timer has been initialized. Actually the variables can be changed within the interrupt routine, but not outside the routine. I sthis true?