dspwdg.h

以TI 公司的OMAP5910为例

//////////////////////////////////////////////////////////////////////////
//            Copyright (C) 2004, Eyoka @ Microunit
//                           All Rights Reserved
//________________________________________________________________________
//
// FILENAME:    dspwdg.h
// PROJECT:     High-Resolution Video System On OMAP
// MODULE:      DSP System
// DESCRIPTION: DSP Watchdog support.
// TARGET CPU:  DSP-C55xx of OMAP5910
// VERSION:     1.0
//________________________________________________________________________
//
// REVISE HISTORY
// DATE         VERSION AUTHOR  DESCRIPTION
// 2004-10-13   1.0     Eyoka   First release.
//////////////////////////////////////////////////////////////////////////

#ifndef _DSPWDG_H_
#define _DSPWDG_H_
#include "datatypes.h"


/////////////////////////////////////////////////////////////////////
// WATCHDOG TIMER REGISTERS
/////////////////////////////////////////////////////////////////////

#define WDG_CNTL_TIMER			REG(0x3400)
#define WDG_LOAD_TIM			REG(0x3402)
#define WDG_READ_TIM			REG(0x3402)
#define WDG_TIMER_MODE			REG(0x3404)


/////////////////////////////////////////////////////////////////////
// WATCHDOG FUNCTIONS
/////////////////////////////////////////////////////////////////////

//___________________________________________________________________
// Function: WDG_Disable
// Usage: disable the watchdog
// Parameters:
//    N/A
// Return Values:
//    BOOL		TRUE if the watchdog has stopped; FALSE if not
//___________________________________________________________________
//
BOOL WDG_Disable(void);

//___________________________________________________________________
// Function: WDG_Enable
// Usage: enable the watchdog
// Parameters:
//    N/A
// Return Values:
//    BOOL		TRUE if the watchdog has been enabled; FALSE if not
//___________________________________________________________________
// untested
BOOL WDG_Enable(void);

//___________________________________________________________________
// Function: WDG_Refresh
// Usage: load a value in the watchdog to avoid a watchdog reset
// Parameters:
//    CounterValue		- Timer setup value to be loaded
// Return Values:
//    N/A
//___________________________________________________________________
// untested
void WDG_Refresh(WORD CounterValue);


#endif // ifndef _DSPWDG_H_