154 lines
4.9 KiB
C
154 lines
4.9 KiB
C
/**********************************************************************
|
|
* $Id$ lpc17xx_wdt.h 2010-05-21
|
|
*//**
|
|
* @file lpc17xx_wdt.h
|
|
* @brief Contains all macro definitions and function prototypes
|
|
* support for WDT firmware library on LPC17xx
|
|
* @version 2.0
|
|
* @date 21. May. 2010
|
|
* @author NXP MCU SW Application Team
|
|
*
|
|
* Copyright(C) 2010, 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 WDT WDT (Watch-Dog Timer)
|
|
* @ingroup LPC1700CMSIS_FwLib_Drivers
|
|
* @{
|
|
*/
|
|
|
|
#ifndef LPC17XX_WDT_H_
|
|
#define LPC17XX_WDT_H_
|
|
|
|
/* Includes ------------------------------------------------------------------- */
|
|
#include "LPC17xx.h"
|
|
#include "lpc_types.h"
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C"
|
|
{
|
|
#endif
|
|
|
|
|
|
/* Private Macros ------------------------------------------------------------- */
|
|
/** @defgroup WDT_Private_Macros WDT Private Macros
|
|
* @{
|
|
*/
|
|
|
|
/* --------------------- BIT DEFINITIONS -------------------------------------- */
|
|
/** WDT interrupt enable bit */
|
|
#define WDT_WDMOD_WDEN ((uint32_t)(1<<0))
|
|
/** WDT interrupt enable bit */
|
|
#define WDT_WDMOD_WDRESET ((uint32_t)(1<<1))
|
|
/** WDT time out flag bit */
|
|
#define WDT_WDMOD_WDTOF ((uint32_t)(1<<2))
|
|
/** WDT Time Out flag bit */
|
|
#define WDT_WDMOD_WDINT ((uint32_t)(1<<3))
|
|
/** WDT Mode */
|
|
#define WDT_WDMOD(n) ((uint32_t)(1<<1))
|
|
|
|
/** Define divider index for microsecond ( us ) */
|
|
#define WDT_US_INDEX ((uint32_t)(1000000))
|
|
/** WDT Time out minimum value */
|
|
#define WDT_TIMEOUT_MIN ((uint32_t)(0xFF))
|
|
/** WDT Time out maximum value */
|
|
#define WDT_TIMEOUT_MAX ((uint32_t)(0xFFFFFFFF))
|
|
|
|
/** Watchdog mode register mask */
|
|
#define WDT_WDMOD_MASK (uint8_t)(0x02)
|
|
/** Watchdog timer constant register mask */
|
|
#define WDT_WDTC_MASK (uint8_t)(0xFFFFFFFF)
|
|
/** Watchdog feed sequence register mask */
|
|
#define WDT_WDFEED_MASK (uint8_t)(0x000000FF)
|
|
/** Watchdog timer value register mask */
|
|
#define WDT_WDCLKSEL_MASK (uint8_t)(0x03)
|
|
/** Clock selected from internal RC */
|
|
#define WDT_WDCLKSEL_RC (uint8_t)(0x00)
|
|
/** Clock selected from PCLK */
|
|
#define WDT_WDCLKSEL_PCLK (uint8_t)(0x01)
|
|
/** Clock selected from external RTC */
|
|
#define WDT_WDCLKSEL_RTC (uint8_t)(0x02)
|
|
|
|
/* ---------------- CHECK PARAMETER DEFINITIONS ---------------------------- */
|
|
/* Macro check clock source selection */
|
|
#define PARAM_WDT_CLK_OPT(OPTION) ((OPTION ==WDT_CLKSRC_IRC)||(OPTION ==WDT_CLKSRC_PCLK)\
|
|
||(OPTION ==WDT_CLKSRC_RTC))
|
|
|
|
/* Macro check WDT mode */
|
|
#define PARAM_WDT_MODE_OPT(OPTION) ((OPTION ==WDT_MODE_INT_ONLY)||(OPTION ==WDT_MODE_RESET))
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/* Public Types --------------------------------------------------------------- */
|
|
/** @defgroup WDT_Public_Types WDT Public Types
|
|
* @{
|
|
*/
|
|
|
|
/** @brief Clock source option for WDT */
|
|
typedef enum {
|
|
WDT_CLKSRC_IRC = 0, /*!< Clock source from Internal RC oscillator */
|
|
WDT_CLKSRC_PCLK = 1, /*!< Selects the APB peripheral clock (PCLK) */
|
|
WDT_CLKSRC_RTC = 2 /*!< Selects the RTC oscillator */
|
|
} WDT_CLK_OPT;
|
|
|
|
/** @brief WDT operation mode */
|
|
typedef enum {
|
|
WDT_MODE_INT_ONLY = 0, /*!< Use WDT to generate interrupt only */
|
|
WDT_MODE_RESET = 1 /*!< Use WDT to generate interrupt and reset MCU */
|
|
} WDT_MODE_OPT;
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/* Public Functions ----------------------------------------------------------- */
|
|
/** @defgroup WDT_Public_Functions WDT Public Functions
|
|
* @{
|
|
*/
|
|
|
|
void WDT_Init (WDT_CLK_OPT ClkSrc, WDT_MODE_OPT WDTMode);
|
|
void WDT_Start(uint32_t TimeOut);
|
|
void WDT_Feed (void);
|
|
void WDT_UpdateTimeOut ( uint32_t TimeOut);
|
|
FlagStatus WDT_ReadTimeOutFlag (void);
|
|
void WDT_ClrTimeOutFlag (void);
|
|
uint32_t WDT_GetCurrentCount(void);
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* LPC17XX_WDT_H_ */
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/* --------------------------------- End Of File ------------------------------ */
|