Watchdog

Hardware watchdog and reset cause. More...

Functions
void	watchdog_init (void)
	Configure the watchdog, without starting it.
void	watchdog_start (void)
	Start the watchdog.
void	watchdog_stop (void)
	Stop the watchdog.
void	watchdog_feed (void)
	Restart the watchdog countdown.
bool	watchdog_check_reset_flag (void)
	Check whether the last reset was caused by the watchdog.
McuRebootReason	watchdog_clear_reset_flag (void)
	Read and clear the hardware reset cause.
McuRebootReason	watchdog_get_reset_flag (void)
	Get the reset cause read by the last watchdog_clear_reset_flag().

Detailed Description

Hardware watchdog and reset cause.

Without CONFIG_WATCHDOG, all functions are no-ops and no reset cause is reported.

watchdog_init();
watchdog_start();
// periodically
watchdog_feed();

Function Documentation

watchdog_check_reset_flag()

bool watchdog_check_reset_flag

(

void

)

Check whether the last reset was caused by the watchdog.

Returns

true after a watchdog reset.

watchdog_clear_reset_flag()

McuRebootReason watchdog_clear_reset_flag

(

void

)

Read and clear the hardware reset cause.

Returns

Reset cause, also cached for watchdog_get_reset_flag().

watchdog_feed()

void watchdog_feed

(

void

)

Restart the watchdog countdown.

watchdog_get_reset_flag()

McuRebootReason watchdog_get_reset_flag

(

void

)

Get the reset cause read by the last watchdog_clear_reset_flag().

Returns

Cached reset cause.

watchdog_init()

void watchdog_init

(

void

)

Configure the watchdog, without starting it.

watchdog_start()

void watchdog_start

(

void

)

Start the watchdog.

watchdog_stop()

void watchdog_stop

(

void

)

Stop the watchdog.