rt-thread/bsp/tm4c129x/libraries/inc/hw_watchdog.h

123 lines
5.7 KiB
C

//*****************************************************************************
//
// hw_watchdog.h - Macros used when accessing the Watchdog Timer hardware.
//
// Copyright (c) 2005-2017 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Redistribution and use in source and binary forms, with or without
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// are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the
// distribution.
//
// Neither the name of Texas Instruments Incorporated nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// This is part of revision 2.1.4.178 of the Tiva Firmware Development Package.
//
//*****************************************************************************
#ifndef __HW_WATCHDOG_H__
#define __HW_WATCHDOG_H__
//*****************************************************************************
//
// The following are defines for the Watchdog Timer register offsets.
//
//*****************************************************************************
#define WDT_O_LOAD 0x00000000 // Watchdog Load
#define WDT_O_VALUE 0x00000004 // Watchdog Value
#define WDT_O_CTL 0x00000008 // Watchdog Control
#define WDT_O_ICR 0x0000000C // Watchdog Interrupt Clear
#define WDT_O_RIS 0x00000010 // Watchdog Raw Interrupt Status
#define WDT_O_MIS 0x00000014 // Watchdog Masked Interrupt Status
#define WDT_O_TEST 0x00000418 // Watchdog Test
#define WDT_O_LOCK 0x00000C00 // Watchdog Lock
//*****************************************************************************
//
// The following are defines for the bit fields in the WDT_O_LOAD register.
//
//*****************************************************************************
#define WDT_LOAD_M 0xFFFFFFFF // Watchdog Load Value
#define WDT_LOAD_S 0
//*****************************************************************************
//
// The following are defines for the bit fields in the WDT_O_VALUE register.
//
//*****************************************************************************
#define WDT_VALUE_M 0xFFFFFFFF // Watchdog Value
#define WDT_VALUE_S 0
//*****************************************************************************
//
// The following are defines for the bit fields in the WDT_O_CTL register.
//
//*****************************************************************************
#define WDT_CTL_WRC 0x80000000 // Write Complete
#define WDT_CTL_INTTYPE 0x00000004 // Watchdog Interrupt Type
#define WDT_CTL_RESEN 0x00000002 // Watchdog Reset Enable
#define WDT_CTL_INTEN 0x00000001 // Watchdog Interrupt Enable
//*****************************************************************************
//
// The following are defines for the bit fields in the WDT_O_ICR register.
//
//*****************************************************************************
#define WDT_ICR_M 0xFFFFFFFF // Watchdog Interrupt Clear
#define WDT_ICR_S 0
//*****************************************************************************
//
// The following are defines for the bit fields in the WDT_O_RIS register.
//
//*****************************************************************************
#define WDT_RIS_WDTRIS 0x00000001 // Watchdog Raw Interrupt Status
//*****************************************************************************
//
// The following are defines for the bit fields in the WDT_O_MIS register.
//
//*****************************************************************************
#define WDT_MIS_WDTMIS 0x00000001 // Watchdog Masked Interrupt Status
//*****************************************************************************
//
// The following are defines for the bit fields in the WDT_O_TEST register.
//
//*****************************************************************************
#define WDT_TEST_STALL 0x00000100 // Watchdog Stall Enable
//*****************************************************************************
//
// The following are defines for the bit fields in the WDT_O_LOCK register.
//
//*****************************************************************************
#define WDT_LOCK_M 0xFFFFFFFF // Watchdog Lock
#define WDT_LOCK_UNLOCKED 0x00000000 // Unlocked
#define WDT_LOCK_LOCKED 0x00000001 // Locked
#define WDT_LOCK_UNLOCK 0x1ACCE551 // Unlocks the watchdog timer
#endif // __HW_WATCHDOG_H__