lpc17xx_wdt.h

Go to the documentation of this file.

/***********************************************************************/
/* Peripheral group ----------------------------------------------------------- */
#ifndef LPC17XX_WDT_H_
#define LPC17XX_WDT_H_

/* Includes ------------------------------------------------------------------- */
#include "LPC17xx.h"
#include "lpc_types.h"


#ifdef __cplusplus
extern "C"
{
#endif


/* Private Macros ------------------------------------------------------------- */
/* --------------------- BIT DEFINITIONS -------------------------------------- */
#define WDT_WDMOD_WDEN              ((uint32_t)(1<<0))

#define WDT_WDMOD_WDRESET           ((uint32_t)(1<<1))

#define WDT_WDMOD_WDTOF             ((uint32_t)(1<<2))

#define WDT_WDMOD_WDINT             ((uint32_t)(1<<3))

#define WDT_WDMOD(n)                ((uint32_t)(1<<1))

#define WDT_US_INDEX    ((uint32_t)(1000000))

#define WDT_TIMEOUT_MIN ((uint32_t)(0xFF))

#define WDT_TIMEOUT_MAX ((uint32_t)(0xFFFFFFFF))

#define WDT_WDMOD_MASK          (uint8_t)(0x02)

#define WDT_WDTC_MASK           (uint8_t)(0xFFFFFFFF)

#define WDT_WDFEED_MASK         (uint8_t)(0x000000FF)

#define WDT_WDCLKSEL_MASK       (uint8_t)(0x03)

#define WDT_WDCLKSEL_RC         (uint8_t)(0x00)

#define WDT_WDCLKSEL_PCLK       (uint8_t)(0x01)

#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_IRC)\
||(OPTION ==WDT_CLKSRC_IRC))

/* Macro check WDT mode */
#define PARAM_WDT_MODE_OPT(OPTION)  ((OPTION ==WDT_MODE_INT_ONLY)||(OPTION ==WDT_MODE_RESET))

/* Public Types --------------------------------------------------------------- */
typedef enum {
    WDT_CLKSRC_IRC = 0, 
    WDT_CLKSRC_PCLK = 1, 
    WDT_CLKSRC_RTC = 2 
} WDT_CLK_OPT;

typedef enum {
    WDT_MODE_INT_ONLY = 0, 
    WDT_MODE_RESET = 1    
} WDT_MODE_OPT;

/* 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 ------------------------------ */