Table of Contents
Advertisement
CHAPTER 6 WATCHDOG TIMER
6.5
Notes on Using Watchdog Timer
This section lists points to note when using the watchdog timer.
I Notes on using watchdog timer
G
Stopping watchdog timer
Once activated, the watchdog timer cannot stop until a reset generates.
G
Clearing watchdog timer
Clearing the counter being used as a count clock of the watchdog timer (timebase timer or watch prescaler)
also simultaneously clears the watchdog timer counter.
The watchdog timer counter is cleared when entering sleep or stop mode.
G
Notes on programming
When writing a program in which the watchdog timer is repeatedly cleared in the main loop, including
interrupt processing, it should be less than the minimum watchdog timer interval time.
118
Advertisement
Table of Contents
