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/***********************************************************************//**
* @file lpc17xx_systick.h
* @brief Contains all macro definitions and function prototypes
* support for SYSTICK firmware library on LPC17xx
* @version 2.0
* @date 21. May. 2010
* @author NXP MCU SW Application Team
**************************************************************************
* 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.
**************************************************************************/
/* Peripheral group ----------------------------------------------------------- */
/** @defgroup SYSTICK SYSTICK
* @ingroup LPC1700CMSIS_FwLib_Drivers
* @{
*/
#ifndef LPC17XX_SYSTICK_H_
#define LPC17XX_SYSTICK_H_
/* Includes ------------------------------------------------------------------- */
#include "LPC17xx.h"
#include "lpc_types.h"
#ifdef __cplusplus
extern "C"
{
#endif
/* Private Macros ------------------------------------------------------------- */
/** @defgroup SYSTICK_Private_Macros SYSTICK Private Macros
* @{
*/
/*********************************************************************//**
* Macro defines for System Timer Control and status (STCTRL) register
**********************************************************************/
#define ST_CTRL_ENABLE ((uint32_t)(1<<0))
#define ST_CTRL_TICKINT ((uint32_t)(1<<1))
#define ST_CTRL_CLKSOURCE ((uint32_t)(1<<2))
#define ST_CTRL_COUNTFLAG ((uint32_t)(1<<16))
/*********************************************************************//**
* Macro defines for System Timer Reload value (STRELOAD) register
**********************************************************************/
#define ST_RELOAD_RELOAD(n) ((uint32_t)(n & 0x00FFFFFF))
/*********************************************************************//**
* Macro defines for System Timer Current value (STCURRENT) register
**********************************************************************/
#define ST_RELOAD_CURRENT(n) ((uint32_t)(n & 0x00FFFFFF))
/*********************************************************************//**
* Macro defines for System Timer Calibration value (STCALIB) register
**********************************************************************/
#define ST_CALIB_TENMS(n) ((uint32_t)(n & 0x00FFFFFF))
#define ST_CALIB_SKEW ((uint32_t)(1<<30))
#define ST_CALIB_NOREF ((uint32_t)(1<<31))
#define CLKSOURCE_EXT ((uint32_t)(0))
#define CLKSOURCE_CPU ((uint32_t)(1))
/**
* @}
*/
/* Public Functions ----------------------------------------------------------- */
/** @defgroup SYSTICK_Public_Functions SYSTICK Public Functions
* @{
*/
void SYSTICK_InternalInit(uint32_t time);
void SYSTICK_ExternalInit(uint32_t freq, uint32_t time);
void SYSTICK_Cmd(FunctionalState NewState);
void SYSTICK_IntCmd(FunctionalState NewState);
uint32_t SYSTICK_GetCurrentValue(void);
void SYSTICK_ClearCounterFlag(void);
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* LPC17XX_SYSTICK_H_ */
/**
* @}
*/
/* --------------------------------- End Of File ------------------------------ */
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