watchdog.c File Reference

#include <stddef.h>
#include "bcm2837.h"

Macros
#define	PM_RSTC   (PM_REGS_BASE + 0x1c)
#define	PM_WDOG   (PM_REGS_BASE + 0x24)
#define	PM_PASSWORD   0x5a000000
#define	PM_RSTC_WRCFG_CLR   0xffffffcf
#define	PM_RSTC_WRCFG_FULL_RESET   0x00000020
#define	PM_WDOG_UNITS_PER_SECOND   (1 << 16)
#define	PM_WDOG_UNITS_PER_MILLISECOND   (PM_WDOG_UNITS_PER_SECOND / 1000)

Functions
syscall	watchdogset (uint msecs)

Detailed Description

This file contains code to set the Watchdog Timer on the BCM2835 SoC used on the Raspberry Pi. When enabled, the Watchdog Timer must be refreshed before it expires, otherwise the system resets itself.

Function Documentation

syscall watchdogset

(

uint

msecs

)

Set the watchdog timer.

Parameters

msecs

Milliseconds to wait until the system resets itself.

Returns

OK