WATCHDOG

group WATCHDOG

The watchdog driver allows setting a watchdog timer to reset the chip in case it gets stuck

Functions

PI_WATCHDOG_INLINE0 uint8_t pi_watchdog_timer_set(uint32_t us)

Set watchdog timer.

This function sets the watchdog timer (in micro seconds). Clock is the refclk.

Note

The limit of the timer depends on the ref clock value.

Parameters:

• us – Timer in micro seconds

Return values:

• 0 – if timer has been set

• 1 – if timer value is bigger than the limit

PI_WATCHDOG_INLINE0 void pi_watchdog_start(void)

Start watchdog timer.

This function start the countdown of the timer

PI_WATCHDOG_INLINE0 void pi_watchdog_timer_rearm(void)

Restart watchdog timer.

This function rearm (at the set us value) the countdown of the timer. You have to start it again to launch the countdown.

PI_WATCHDOG_INLINE0 void pi_watchdog_stop(void)

Stop watchdog timer.

This function stops the countdown of the timer.