You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
349 lines
13 KiB
C
349 lines
13 KiB
C
/**********************************************************************
|
|
* $Id$ lpc17xx_timer.h 2010-05-21
|
|
*//**
|
|
* @file lpc17xx_timer.h
|
|
* @brief Contains all macro definitions and function prototypes
|
|
* support for Timer 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 TIM TIM (Timer)
|
|
* @ingroup LPC1700CMSIS_FwLib_Drivers
|
|
* @{
|
|
*/
|
|
|
|
#ifndef __LPC17XX_TIMER_H_
|
|
#define __LPC17XX_TIMER_H_
|
|
|
|
/* Includes ------------------------------------------------------------------- */
|
|
#include "LPC17xx.h"
|
|
#include "lpc_types.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C"
|
|
{
|
|
#endif
|
|
|
|
/* Private Macros ------------------------------------------------------------- */
|
|
/** @defgroup TIM_Private_Macros TIM Private Macros
|
|
* @{
|
|
*/
|
|
|
|
/* --------------------- BIT DEFINITIONS -------------------------------------- */
|
|
/**********************************************************************
|
|
** Interrupt information
|
|
**********************************************************************/
|
|
/** Macro to clean interrupt pending */
|
|
#define TIM_IR_CLR(n) _BIT(n)
|
|
|
|
/**********************************************************************
|
|
** Timer interrupt register definitions
|
|
**********************************************************************/
|
|
/** Macro for getting a timer match interrupt bit */
|
|
#define TIM_MATCH_INT(n) (_BIT(n & 0x0F))
|
|
/** Macro for getting a capture event interrupt bit */
|
|
#define TIM_CAP_INT(n) (_BIT(((n & 0x0F) + 4)))
|
|
|
|
/**********************************************************************
|
|
* Timer control register definitions
|
|
**********************************************************************/
|
|
/** Timer/counter enable bit */
|
|
#define TIM_ENABLE ((uint32_t)(1<<0))
|
|
/** Timer/counter reset bit */
|
|
#define TIM_RESET ((uint32_t)(1<<1))
|
|
/** Timer control bit mask */
|
|
#define TIM_TCR_MASKBIT ((uint32_t)(3))
|
|
|
|
/**********************************************************************
|
|
* Timer match control register definitions
|
|
**********************************************************************/
|
|
/** Bit location for interrupt on MRx match, n = 0 to 3 */
|
|
#define TIM_INT_ON_MATCH(n) (_BIT((n * 3)))
|
|
/** Bit location for reset on MRx match, n = 0 to 3 */
|
|
#define TIM_RESET_ON_MATCH(n) (_BIT(((n * 3) + 1)))
|
|
/** Bit location for stop on MRx match, n = 0 to 3 */
|
|
#define TIM_STOP_ON_MATCH(n) (_BIT(((n * 3) + 2)))
|
|
/** Timer Match control bit mask */
|
|
#define TIM_MCR_MASKBIT ((uint32_t)(0x0FFF))
|
|
/** Timer Match control bit mask for specific channel*/
|
|
#define TIM_MCR_CHANNEL_MASKBIT(n) ((uint32_t)(7<<(n*3)))
|
|
|
|
/**********************************************************************
|
|
* Timer capture control register definitions
|
|
**********************************************************************/
|
|
/** Bit location for CAP.n on CRx rising edge, n = 0 to 3 */
|
|
#define TIM_CAP_RISING(n) (_BIT((n * 3)))
|
|
/** Bit location for CAP.n on CRx falling edge, n = 0 to 3 */
|
|
#define TIM_CAP_FALLING(n) (_BIT(((n * 3) + 1)))
|
|
/** Bit location for CAP.n on CRx interrupt enable, n = 0 to 3 */
|
|
#define TIM_INT_ON_CAP(n) (_BIT(((n * 3) + 2)))
|
|
/** Mask bit for rising and falling edge bit */
|
|
#define TIM_EDGE_MASK(n) (_SBF((n * 3), 0x03))
|
|
/** Timer capture control bit mask */
|
|
#define TIM_CCR_MASKBIT ((uint32_t)(0x3F))
|
|
/** Timer Capture control bit mask for specific channel*/
|
|
#define TIM_CCR_CHANNEL_MASKBIT(n) ((uint32_t)(7<<(n*3)))
|
|
|
|
/**********************************************************************
|
|
* Timer external match register definitions
|
|
**********************************************************************/
|
|
/** Bit location for output state change of MAT.n when external match
|
|
happens, n = 0 to 3 */
|
|
#define TIM_EM(n) _BIT(n)
|
|
/** Output state change of MAT.n when external match happens: no change */
|
|
#define TIM_EM_NOTHING ((uint8_t)(0x0))
|
|
/** Output state change of MAT.n when external match happens: low */
|
|
#define TIM_EM_LOW ((uint8_t)(0x1))
|
|
/** Output state change of MAT.n when external match happens: high */
|
|
#define TIM_EM_HIGH ((uint8_t)(0x2))
|
|
/** Output state change of MAT.n when external match happens: toggle */
|
|
#define TIM_EM_TOGGLE ((uint8_t)(0x3))
|
|
/** Macro for setting for the MAT.n change state bits */
|
|
#define TIM_EM_SET(n,s) (_SBF(((n << 1) + 4), (s & 0x03)))
|
|
/** Mask for the MAT.n change state bits */
|
|
#define TIM_EM_MASK(n) (_SBF(((n << 1) + 4), 0x03))
|
|
/** Timer external match bit mask */
|
|
#define TIM_EMR_MASKBIT 0x0FFF
|
|
|
|
/**********************************************************************
|
|
* Timer Count Control Register definitions
|
|
**********************************************************************/
|
|
/** Mask to get the Counter/timer mode bits */
|
|
#define TIM_CTCR_MODE_MASK 0x3
|
|
/** Mask to get the count input select bits */
|
|
#define TIM_CTCR_INPUT_MASK 0xC
|
|
/** Timer Count control bit mask */
|
|
#define TIM_CTCR_MASKBIT 0xF
|
|
#define TIM_COUNTER_MODE ((uint8_t)(1))
|
|
|
|
|
|
/* ---------------- CHECK PARAMETER DEFINITIONS ---------------------------- */
|
|
/** Macro to determine if it is valid TIMER peripheral */
|
|
#define PARAM_TIMx(n) ((((uint32_t *)n)==((uint32_t *)LPC_TIM0)) || (((uint32_t *)n)==((uint32_t *)LPC_TIM1)) \
|
|
|| (((uint32_t *)n)==((uint32_t *)LPC_TIM2)) || (((uint32_t *)n)==((uint32_t *)LPC_TIM3)))
|
|
|
|
/* Macro check interrupt type */
|
|
#define PARAM_TIM_INT_TYPE(TYPE) ((TYPE ==TIM_MR0_INT)||(TYPE ==TIM_MR1_INT)\
|
|
||(TYPE ==TIM_MR2_INT)||(TYPE ==TIM_MR3_INT)\
|
|
||(TYPE ==TIM_CR0_INT)||(TYPE ==TIM_CR1_INT))
|
|
|
|
/* Macro check TIMER mode */
|
|
#define PARAM_TIM_MODE_OPT(MODE) ((MODE == TIM_TIMER_MODE)||(MODE == TIM_COUNTER_RISING_MODE)\
|
|
|| (MODE == TIM_COUNTER_RISING_MODE)||(MODE == TIM_COUNTER_RISING_MODE))
|
|
|
|
/* Macro check TIMER prescale value */
|
|
#define PARAM_TIM_PRESCALE_OPT(OPT) ((OPT == TIM_PRESCALE_TICKVAL)||(OPT == TIM_PRESCALE_USVAL))
|
|
|
|
/* Macro check TIMER counter intput mode */
|
|
#define PARAM_TIM_COUNTER_INPUT_OPT(OPT) ((OPT == TIM_COUNTER_INCAP0)||(OPT == TIM_COUNTER_INCAP1))
|
|
|
|
/* Macro check TIMER external match mode */
|
|
#define PARAM_TIM_EXTMATCH_OPT(OPT) ((OPT == TIM_EXTMATCH_NOTHING)||(OPT == TIM_EXTMATCH_LOW)\
|
|
||(OPT == TIM_EXTMATCH_HIGH)||(OPT == TIM_EXTMATCH_TOGGLE))
|
|
|
|
/* Macro check TIMER external match mode */
|
|
#define PARAM_TIM_CAP_MODE_OPT(OPT) ((OPT == TIM_CAPTURE_NONE)||(OPT == TIM_CAPTURE_RISING) \
|
|
||(OPT == TIM_CAPTURE_FALLING)||(OPT == TIM_CAPTURE_ANY))
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/* Public Types --------------------------------------------------------------- */
|
|
/** @defgroup TIM_Public_Types TIM Public Types
|
|
* @{
|
|
*/
|
|
|
|
/***********************************************************************
|
|
* Timer device enumeration
|
|
**********************************************************************/
|
|
/** @brief interrupt type */
|
|
typedef enum
|
|
{
|
|
TIM_MR0_INT =0, /*!< interrupt for Match channel 0*/
|
|
TIM_MR1_INT =1, /*!< interrupt for Match channel 1*/
|
|
TIM_MR2_INT =2, /*!< interrupt for Match channel 2*/
|
|
TIM_MR3_INT =3, /*!< interrupt for Match channel 3*/
|
|
TIM_CR0_INT =4, /*!< interrupt for Capture channel 0*/
|
|
TIM_CR1_INT =5 /*!< interrupt for Capture channel 1*/
|
|
}TIM_INT_TYPE;
|
|
|
|
/** @brief Timer/counter operating mode */
|
|
typedef enum
|
|
{
|
|
TIM_TIMER_MODE = 0, /*!< Timer mode */
|
|
TIM_COUNTER_RISING_MODE, /*!< Counter rising mode */
|
|
TIM_COUNTER_FALLING_MODE, /*!< Counter falling mode */
|
|
TIM_COUNTER_ANY_MODE /*!< Counter on both edges */
|
|
} TIM_MODE_OPT;
|
|
|
|
/** @brief Timer/Counter prescale option */
|
|
typedef enum
|
|
{
|
|
TIM_PRESCALE_TICKVAL = 0, /*!< Prescale in absolute value */
|
|
TIM_PRESCALE_USVAL /*!< Prescale in microsecond value */
|
|
} TIM_PRESCALE_OPT;
|
|
|
|
/** @brief Counter input option */
|
|
typedef enum
|
|
{
|
|
TIM_COUNTER_INCAP0 = 0, /*!< CAPn.0 input pin for TIMERn */
|
|
TIM_COUNTER_INCAP1, /*!< CAPn.1 input pin for TIMERn */
|
|
} TIM_COUNTER_INPUT_OPT;
|
|
|
|
/** @brief Timer/Counter external match option */
|
|
typedef enum
|
|
{
|
|
TIM_EXTMATCH_NOTHING = 0, /*!< Do nothing for external output pin if match */
|
|
TIM_EXTMATCH_LOW, /*!< Force external output pin to low if match */
|
|
TIM_EXTMATCH_HIGH, /*!< Force external output pin to high if match */
|
|
TIM_EXTMATCH_TOGGLE /*!< Toggle external output pin if match */
|
|
}TIM_EXTMATCH_OPT;
|
|
|
|
/** @brief Timer/counter capture mode options */
|
|
typedef enum {
|
|
TIM_CAPTURE_NONE = 0, /*!< No Capture */
|
|
TIM_CAPTURE_RISING, /*!< Rising capture mode */
|
|
TIM_CAPTURE_FALLING, /*!< Falling capture mode */
|
|
TIM_CAPTURE_ANY /*!< On both edges */
|
|
} TIM_CAP_MODE_OPT;
|
|
|
|
/** @brief Configuration structure in TIMER mode */
|
|
typedef struct
|
|
{
|
|
|
|
uint8_t PrescaleOption; /**< Timer Prescale option, should be:
|
|
- TIM_PRESCALE_TICKVAL: Prescale in absolute value
|
|
- TIM_PRESCALE_USVAL: Prescale in microsecond value
|
|
*/
|
|
uint8_t Reserved[3]; /**< Reserved */
|
|
uint32_t PrescaleValue; /**< Prescale value */
|
|
} TIM_TIMERCFG_Type;
|
|
|
|
/** @brief Configuration structure in COUNTER mode */
|
|
typedef struct {
|
|
|
|
uint8_t CounterOption; /**< Counter Option, should be:
|
|
- TIM_COUNTER_INCAP0: CAPn.0 input pin for TIMERn
|
|
- TIM_COUNTER_INCAP1: CAPn.1 input pin for TIMERn
|
|
*/
|
|
uint8_t CountInputSelect;
|
|
uint8_t Reserved[2];
|
|
} TIM_COUNTERCFG_Type;
|
|
|
|
/** @brief Match channel configuration structure */
|
|
typedef struct {
|
|
uint8_t MatchChannel; /**< Match channel, should be in range
|
|
from 0..3 */
|
|
uint8_t IntOnMatch; /**< Interrupt On match, should be:
|
|
- ENABLE: Enable this function.
|
|
- DISABLE: Disable this function.
|
|
*/
|
|
uint8_t StopOnMatch; /**< Stop On match, should be:
|
|
- ENABLE: Enable this function.
|
|
- DISABLE: Disable this function.
|
|
*/
|
|
uint8_t ResetOnMatch; /**< Reset On match, should be:
|
|
- ENABLE: Enable this function.
|
|
- DISABLE: Disable this function.
|
|
*/
|
|
|
|
uint8_t ExtMatchOutputType; /**< External Match Output type, should be:
|
|
- TIM_EXTMATCH_NOTHING: Do nothing for external output pin if match
|
|
- TIM_EXTMATCH_LOW: Force external output pin to low if match
|
|
- TIM_EXTMATCH_HIGH: Force external output pin to high if match
|
|
- TIM_EXTMATCH_TOGGLE: Toggle external output pin if match.
|
|
*/
|
|
uint8_t Reserved[3]; /** Reserved */
|
|
uint32_t MatchValue; /** Match value */
|
|
} TIM_MATCHCFG_Type;
|
|
|
|
/** @brief Capture Input configuration structure */
|
|
typedef struct {
|
|
uint8_t CaptureChannel; /**< Capture channel, should be in range
|
|
from 0..1 */
|
|
uint8_t RisingEdge; /**< caption rising edge, should be:
|
|
- ENABLE: Enable rising edge.
|
|
- DISABLE: Disable this function.
|
|
*/
|
|
uint8_t FallingEdge; /**< caption falling edge, should be:
|
|
- ENABLE: Enable falling edge.
|
|
- DISABLE: Disable this function.
|
|
*/
|
|
uint8_t IntOnCaption; /**< Interrupt On caption, should be:
|
|
- ENABLE: Enable interrupt function.
|
|
- DISABLE: Disable this function.
|
|
*/
|
|
|
|
} TIM_CAPTURECFG_Type;
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/* Public Functions ----------------------------------------------------------- */
|
|
/** @defgroup TIM_Public_Functions TIM Public Functions
|
|
* @{
|
|
*/
|
|
/* Init/DeInit TIM functions -----------*/
|
|
void TIM_Init(LPC_TIM_TypeDef *TIMx, TIM_MODE_OPT TimerCounterMode, void *TIM_ConfigStruct);
|
|
void TIM_DeInit(LPC_TIM_TypeDef *TIMx);
|
|
|
|
/* TIM interrupt functions -------------*/
|
|
void TIM_ClearIntPending(LPC_TIM_TypeDef *TIMx, TIM_INT_TYPE IntFlag);
|
|
void TIM_ClearIntCapturePending(LPC_TIM_TypeDef *TIMx, TIM_INT_TYPE IntFlag);
|
|
FlagStatus TIM_GetIntStatus(LPC_TIM_TypeDef *TIMx, TIM_INT_TYPE IntFlag);
|
|
FlagStatus TIM_GetIntCaptureStatus(LPC_TIM_TypeDef *TIMx, TIM_INT_TYPE IntFlag);
|
|
|
|
/* TIM configuration functions --------*/
|
|
void TIM_ConfigStructInit(TIM_MODE_OPT TimerCounterMode, void *TIM_ConfigStruct);
|
|
void TIM_ConfigMatch(LPC_TIM_TypeDef *TIMx, TIM_MATCHCFG_Type *TIM_MatchConfigStruct);
|
|
void TIM_UpdateMatchValue(LPC_TIM_TypeDef *TIMx,uint8_t MatchChannel, uint32_t MatchValue);
|
|
void TIM_SetMatchExt(LPC_TIM_TypeDef *TIMx,TIM_EXTMATCH_OPT ext_match );
|
|
void TIM_ConfigCapture(LPC_TIM_TypeDef *TIMx, TIM_CAPTURECFG_Type *TIM_CaptureConfigStruct);
|
|
void TIM_Cmd(LPC_TIM_TypeDef *TIMx, FunctionalState NewState);
|
|
|
|
uint32_t TIM_GetCaptureValue(LPC_TIM_TypeDef *TIMx, TIM_COUNTER_INPUT_OPT CaptureChannel);
|
|
void TIM_ResetCounter(LPC_TIM_TypeDef *TIMx);
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __LPC17XX_TIMER_H_ */
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/* --------------------------------- End Of File ------------------------------ */
|