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/**********************************************************************
* $Id$ lpc_wwdt.h 2011-06-02
*//**
* @file lpc_wwdt.h
* @brief Contains all macro definitions and function prototypes
* support forWindow Watchdog Timer firmware library on LPC
* @version 1.0
* @date 02. June. 2011
* @author NXP MCU SW Application Team
*
* Copyright(C) 2011, NXP Semiconductor
* All rights reserved.
*
***********************************************************************
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* products. This software is supplied "AS IS" without any warranties.
* NXP Semiconductors assumes no responsibility or liability for the
* use of the software, conveys no license or title under any patent,
* copyright, or mask work right to the product. NXP Semiconductors
* reserves the right to make changes in the software without
* notification. NXP Semiconductors also make no representation or
* warranty that such application will be suitable for the specified
* use without further testing or modification.
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors'
* relevant copyright in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
**********************************************************************/
/* Peripheral group ----------------------------------------------------------- */
/** @defgroup WWDT WWDT (Windowed Watchdog Timer)
* @ingroup LPC_CMSIS_FwLib_Drivers
* @{
*/
#ifndef __LPC_WWDT_H_
#define __LPC_WWDT_H_
/* Includes ------------------------------------------------------------------- */
#include "LPC407x_8x_177x_8x.h"
#include "lpc_types.h"
#ifdef __cplusplus
extern "C"
{
#endif
/** @defgroup WDT_Private_Macros WDT Private Macros
* @{
*/
// time is calculated by usec
#define WDT_GET_FROM_USEC(time) (time/((WWDT_US_INDEX * 4)/WDT_OSC))
#define WDT_GET_USEC(counter) (counter * ((WWDT_US_INDEX * 4)/WDT_OSC))
#define WWDT_FUNC_OK (0)
#define WWDT_FUNC_BAD_PARAM (-1)
/* --------------------- BIT DEFINITIONS -------------------------------------- */
/** WWDT interrupt enable bit */
#define WWDT_WDMOD_WDEN ((uint32_t)(1<<0))
/** WWDT interrupt enable bit */
#define WWDT_WDMOD_WDRESET ((uint32_t)(1<<1))
/** WWDT time out flag bit */
#define WWDT_WDMOD_WDTOF ((uint32_t)(1<<2))
/** WDT Time Out flag bit */
#define WWDT_WDMOD_WDINT ((uint32_t)(1<<3))
/** WWDT Protect flag bit */
#define WWDT_WDMOD_WDPROTECT ((uint32_t)(1<<4))
/** Define divider index for microsecond ( us ) */
#define WWDT_US_INDEX ((uint32_t)(1000000))
/** WWDT Time out minimum value */
#define WWDT_TIMEOUT_MIN ((uint32_t)(0xFF))
/** WWDT Time out maximum value */
#define WWDT_TIMEOUT_MAX ((uint32_t)(0x00FFFFFF))
/** WWDT Warning minimum value */
#define WWDT_WARNINT_MIN ((uint32_t)(0xFF))
/** WWDT Warning maximum value */
#define WWDT_WARNINT_MAX ((uint32_t)(0x000003FF))
/** WWDT Windowed minimum value */
#define WWDT_WINDOW_MIN ((uint32_t)(0xFF))
/** WWDT Windowed minimum value */
#define WWDT_WINDOW_MAX ((uint32_t)(0x00FFFFFF))
/** WWDT timer constant register mask */
#define WWDT_WDTC_MASK ((uint32_t)(0x00FFFFFF))
/** WWDT warning value register mask */
#define WWDT_WDWARNINT_MASK ((uint32_t)(0x000003FF))
/** WWDT feed sequence register mask */
#define WWDT_WDFEED_MASK ((uint32_t)(0x000000FF))
/** WWDT flag */
#define WWDT_WARNINT_FLAG ((uint8_t)(0))
#define WWDT_TIMEOUT_FLAG ((uint8_t)(1))
/** WWDT mode definitions */
#define WWDT_PROTECT_MODE ((uint8_t)(0))
#define WWDT_RESET_MODE ((uint8_t)(1))
/* WWDT Timer value definition (us) */
#define WWDT_TIMEOUT_USEC_MIN ((uint32_t)(WDT_GET_USEC(WWDT_TIMEOUT_MIN)))//microseconds
#define WWDT_TIMEOUT_USEC_MAX ((uint32_t)(WDT_GET_USEC(WWDT_TIMEOUT_MAX)))
#define WWDT_TIMEWARN_USEC_MIN ((uint32_t)(WDT_GET_USEC(WWDT_WARNINT_MIN)))
#define WWDT_TIMEWARN_USEC_MAX ((uint32_t)(WDT_GET_USEC(WWDT_WARNINT_MAX)))
#define WWDT_TIMEWINDOWED_USEC_MIN ((uint32_t)(WDT_GET_USEC(WWDT_WINDOW_MIN)))
#define WWDT_TIMEWINDOWED_USEC_MAX ((uint32_t)(WDT_GET_USEC(WWDT_WINDOW_MAX)))
/**
* @}
*/
/** @defgroup WDT_Public_Types WDT Public Types
* @{
*/
/**
* @brief The field to configurate the WatchDog Timer
*/
typedef struct Wdt_Config
{
uint8_t wdtEnable; /**< if ENABLE -> the enable bit is enabled */
uint8_t wdtReset; /**< if ENABLE -> the Reset bit is enabled */
uint8_t wdtProtect; /**< if ENABLE -> the Protect bit is enabled */
uint32_t wdtTmrConst; /**< Set the constant value to timeout the WDT */
uint32_t wdtWarningVal; /**< Set the value to warn the WDT with interrupt */
uint32_t wdtWindowVal; /**< Set a window vaule for WDT */
}st_Wdt_Config;
/**
* @}
*/
/* Public Functions ----------------------------------------------------------- */
/** @defgroup WDT_Public_Functions WDT Public Functions
* @{
*/
int8_t WWDT_Init(uint32_t TimeOut);
int8_t WWDT_Start(uint32_t TimeOut);
void WWDT_SetMode(uint8_t mode, FunctionalState NewState);
void WWDT_SetTimerConstant(uint32_t constVal);
void WWDT_Enable(FunctionalState NewState);
void WWDT_Cmd(FunctionalState NewState);
int8_t WWDT_SetWarningRaw(uint32_t warnVal);
int8_t WWDT_SetWarning(uint32_t WarnTime);
int8_t WWDT_SetWindowRaw(uint32_t wndVal);
int8_t WWDT_SetWindow(uint32_t WindowedTime);
void WWDT_UpdateTimeOut(uint32_t TimeOut);
FlagStatus WWDT_GetStatus (uint8_t Status);
void WWDT_ClearStatusFlag (uint8_t flag);
void WWDT_ClrTimeOutFlag (void);
void WWDT_FeedStdSeq (void);
void WWDT_Feed (void);
uint32_t WWDT_GetCurrentCount(void);
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __LPC_WWDT_H_ */
/**
* @}
*/
/* --------------------------------- End Of File ------------------------------ */
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