wdog.h.svn-base

Spearhead2000 的 USB驱动程序

/*****************************************************************************/
/* This confidential and proprietary software may be used only as authorized */
/* by a licensing agreement from STMicroelectronics.                         */
/* In the event of publication, the following notice is applicable:          */
/*                                                                           */
/*                   (C) COPYRIGHT 2002 STMicroelectronics                   */
/*                Innovative Systems Design Group - Central R&D              */
/*                            ALL RIGHTS RESERVED                            */
/*                                                                           */
/* The entire notice above must be reproduced on all authorized copies.      */
/*                                                                           */
/* -- File:                  wodg.h                                          */
/* -- Author:                Gianfranco Di Nuzzo                             */
/* -- Collaboration:         Nicola Imperato                                 */
/* -- Description:           Header WDOG                                     */
/*                                                                           */
/* -- Modification History: - 1.0 (4/11/2005)                                */
/*****************************************************************************/

#ifndef __WDOG_H
#define __WDOG_H


extern void wdogInit(void);
extern void wdogTest(void);

#define APB_WDOG_BASE   0x12004000

typedef struct WDOGController
{
  unsigned int CTRL;
  unsigned int STATUS;
  unsigned int MAXCNT;
  unsigned int WDOGCNT;
  
} WDOGController;

#define WDOGCntl ((volatile struct WDOGController*) (APB_WDOG_BASE))

// Control Register bits
#define  CTRL_FAST       0x08 // Fast Mode
#define  CTRL_DBGFRZ     0x04 // Debug Freeze
#define  CTRL_ENABLE     0x02 // Enable
#define  CTRL_CLEAR      0x01 // Clear

// Status Register 1 bit
#define  STATUS_WDOGRST  0x01 // WDOGRESET (1 when wdog reset occurs)

// Max Counter Register
// bits 7 - 0 max counter value (reset when counter = max counter + 1)

// Watch Dog Counter
// current counter value


#endif //__WDOG_H