cc2538 watchdog timer driver

Driver for the cc2538 Watchdog Timer. More...

Files
file	watchdog.c
	Implementation of the cc2538 watchdog driver.

Functions
void	watchdog_init (void)
	Initialisation function for the WDT. More...
void	watchdog_start (void)
	Starts the WDT in watchdog mode if enabled by user configuration, maximum interval.
void	watchdog_periodic (void)
	Writes the WDT clear sequence. More...
void	watchdog_stop (void)
	In watchdog mode, the WDT can not be stopped. More...
void	watchdog_reboot (void)
	Keeps control until the WDT throws a reset signal. More...

Detailed Description

Driver for the cc2538 Watchdog Timer.

Function Documentation

void watchdog_init

(

void

)

Initialisation function for the WDT.

Copyright (c) 2014, Analog Devices, Inc.

Currently simply explicitly sets the WDT interval to max interval

Definition at line 63 of file watchdog.c.

References SMWDTHROSC_WDCTL.

void watchdog_periodic

(

void

)

Writes the WDT clear sequence.

Due to how the SMWDTHROSC_WDCTL works, it is OK to simply write these bits rather than use RMW operations.

Definition at line 85 of file watchdog.c.

References SMWDTHROSC_WDCTL, SMWDTHROSC_WDCTL_CLR_0, SMWDTHROSC_WDCTL_CLR_1, SMWDTHROSC_WDCTL_CLR_2, and SMWDTHROSC_WDCTL_CLR_3.

void watchdog_reboot

(

void

)

Keeps control until the WDT throws a reset signal.

Starts the WDT if not already started.

Definition at line 103 of file watchdog.c.

References INTERRUPTS_DISABLE, SMWDTHROSC_WDCTL, SMWDTHROSC_WDCTL_EN, and SMWDTHROSC_WDCTL_INT.

void watchdog_stop

(

void

)

In watchdog mode, the WDT can not be stopped.

This function is defined here to satisfy API requirements.

Definition at line 95 of file watchdog.c.