Diff: lpc17xx_timer.c

Revision:

0:84d7747641aa

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lpc17xx_timer.c	Sun Mar 20 18:45:15 2011 +0000
@@ -0,0 +1,591 @@
+/***********************************************************************//**
+ * @file        lpc17xx_timer.c
+ * @brief        Contains all functions support for Timer firmware library on LPC17xx
+ * @version        3.0
+ * @date        18. June. 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 ----------------------------------------------------------- */
+/** @addtogroup TIM
+ * @{
+ */
+
+/* Includes ------------------------------------------------------------------- */
+#include "lpc17xx_timer.h"
+#include "lpc17xx_clkpwr.h"
+#include "lpc17xx_pinsel.h"
+
+/* If this source file built with example, the LPC17xx FW library configuration
+ * file in each example directory ("lpc17xx_libcfg.h") must be included,
+ * otherwise the default FW library configuration file must be included instead
+ */
+#ifdef __BUILD_WITH_EXAMPLE__
+#include "lpc17xx_libcfg.h"
+#else
+#include "lpc17xx_libcfg_default.h"
+#endif /* __BUILD_WITH_EXAMPLE__ */
+
+#ifdef _TIM
+
+/* Private Functions ---------------------------------------------------------- */
+
+static uint32_t getPClock (uint32_t timernum);
+static uint32_t converUSecToVal (uint32_t timernum, uint32_t usec);
+static uint32_t converPtrToTimeNum (LPC_TIM_TypeDef *TIMx);
+
+
+/*********************************************************************//**
+ * @brief         Get peripheral clock of each timer controller
+ * @param[in]    timernum Timer number
+ * @return         Peripheral clock of timer
+ **********************************************************************/
+static uint32_t getPClock (uint32_t timernum)
+{
+    uint32_t clkdlycnt = 0;
+    switch (timernum)
+    {
+    case 0:
+        clkdlycnt = CLKPWR_GetPCLK (CLKPWR_PCLKSEL_TIMER0);
+        break;
+
+    case 1:
+        clkdlycnt = CLKPWR_GetPCLK (CLKPWR_PCLKSEL_TIMER1);
+        break;
+
+    case 2:
+        clkdlycnt = CLKPWR_GetPCLK (CLKPWR_PCLKSEL_TIMER2);
+        break;
+
+    case 3:
+        clkdlycnt = CLKPWR_GetPCLK (CLKPWR_PCLKSEL_TIMER3);
+        break;
+    }
+    return clkdlycnt;
+}
+
+
+/*********************************************************************//**
+ * @brief         Convert a time to a timer count value
+ * @param[in]    timernum Timer number
+ * @param[in]    usec Time in microseconds
+ * @return         The number of required clock ticks to give the time delay
+ **********************************************************************/
+uint32_t converUSecToVal (uint32_t timernum, uint32_t usec)
+{
+    uint64_t clkdlycnt;
+
+    // Get Pclock of timer
+    clkdlycnt = (uint64_t) getPClock(timernum);
+
+    clkdlycnt = (clkdlycnt * usec) / 1000000;
+    return (uint32_t) clkdlycnt;
+}
+
+
+/*********************************************************************//**
+ * @brief         Convert a timer register pointer to a timer number
+ * @param[in]    TIMx Pointer to LPC_TIM_TypeDef, should be:
+ *                 - LPC_TIM0: TIMER0 peripheral
+ *                 - LPC_TIM1: TIMER1 peripheral
+ *                 - LPC_TIM2: TIMER2 peripheral
+ *                 - LPC_TIM3: TIMER3 peripheral
+ * @return         The timer number (0 to 3) or -1 if register pointer is bad
+ **********************************************************************/
+uint32_t converPtrToTimeNum (LPC_TIM_TypeDef *TIMx)
+{
+    uint32_t tnum = 0xFFFFFFFF;
+
+    if (TIMx == LPC_TIM0)
+    {
+        tnum = 0;
+    }
+    else if (TIMx == LPC_TIM1)
+    {
+        tnum = 1;
+    }
+    else if (TIMx == LPC_TIM2)
+    {
+        tnum = 2;
+    }
+    else if (TIMx == LPC_TIM3)
+    {
+        tnum = 3;
+    }
+
+    return tnum;
+}
+
+/* End of Private Functions ---------------------------------------------------- */
+
+
+/* Public Functions ----------------------------------------------------------- */
+/** @addtogroup TIM_Public_Functions
+ * @{
+ */
+
+/*********************************************************************//**
+ * @brief         Get Interrupt Status
+ * @param[in]    TIMx Timer selection, should be:
+ *               - LPC_TIM0: TIMER0 peripheral
+ *                 - LPC_TIM1: TIMER1 peripheral
+ *                 - LPC_TIM2: TIMER2 peripheral
+ *                 - LPC_TIM3: TIMER3 peripheral
+ * @param[in]    IntFlag: interrupt type, should be:
+ *                 - TIM_MR0_INT: Interrupt for Match channel 0
+ *                 - TIM_MR1_INT: Interrupt for Match channel 1
+ *                 - TIM_MR2_INT: Interrupt for Match channel 2
+ *                 - TIM_MR3_INT: Interrupt for Match channel 3
+ *                 - TIM_CR0_INT: Interrupt for Capture channel 0
+ *                 - TIM_CR1_INT: Interrupt for Capture channel 1
+ * @return         FlagStatus
+ *                 - SET : interrupt
+ *                 - RESET : no interrupt
+ **********************************************************************/
+FlagStatus TIM_GetIntStatus(LPC_TIM_TypeDef *TIMx, TIM_INT_TYPE IntFlag)
+{
+    uint8_t temp;
+    CHECK_PARAM(PARAM_TIMx(TIMx));
+    CHECK_PARAM(PARAM_TIM_INT_TYPE(IntFlag));
+    temp = (TIMx->IR)& TIM_IR_CLR(IntFlag);
+    if (temp)
+        return SET;
+
+    return RESET;
+
+}
+/*********************************************************************//**
+ * @brief         Get Capture Interrupt Status
+ * @param[in]    TIMx Timer selection, should be:
+ *                 - LPC_TIM0: TIMER0 peripheral
+ *                 - LPC_TIM1: TIMER1 peripheral
+ *                 - LPC_TIM2: TIMER2 peripheral
+ *                 - LPC_TIM3: TIMER3 peripheral
+ * @param[in]    IntFlag: interrupt type, should be:
+ *                 - TIM_MR0_INT: Interrupt for Match channel 0
+ *                 - TIM_MR1_INT: Interrupt for Match channel 1
+ *                 - TIM_MR2_INT: Interrupt for Match channel 2
+ *                 - TIM_MR3_INT: Interrupt for Match channel 3
+ *                 - TIM_CR0_INT: Interrupt for Capture channel 0
+ *                 - TIM_CR1_INT: Interrupt for Capture channel 1
+ * @return         FlagStatus
+ *                 - SET : interrupt
+ *                 - RESET : no interrupt
+ **********************************************************************/
+FlagStatus TIM_GetIntCaptureStatus(LPC_TIM_TypeDef *TIMx, TIM_INT_TYPE IntFlag)
+{
+    uint8_t temp;
+    CHECK_PARAM(PARAM_TIMx(TIMx));
+    CHECK_PARAM(PARAM_TIM_INT_TYPE(IntFlag));
+    temp = (TIMx->IR) & (1<<(4+IntFlag));
+    if(temp)
+        return SET;
+    return RESET;
+}
+/*********************************************************************//**
+ * @brief         Clear Interrupt pending
+ * @param[in]    TIMx Timer selection, should be:
+ *                - LPC_TIM0: TIMER0 peripheral
+ *                 - LPC_TIM1: TIMER1 peripheral
+ *                 - LPC_TIM2: TIMER2 peripheral
+ *                 - LPC_TIM3: TIMER3 peripheral
+ * @param[in]    IntFlag: interrupt type, should be:
+ *                 - TIM_MR0_INT: Interrupt for Match channel 0
+ *                 - TIM_MR1_INT: Interrupt for Match channel 1
+ *                 - TIM_MR2_INT: Interrupt for Match channel 2
+ *                 - TIM_MR3_INT: Interrupt for Match channel 3
+ *                 - TIM_CR0_INT: Interrupt for Capture channel 0
+ *                 - TIM_CR1_INT: Interrupt for Capture channel 1
+ * @return         None
+ **********************************************************************/
+void TIM_ClearIntPending(LPC_TIM_TypeDef *TIMx, TIM_INT_TYPE IntFlag)
+{
+    CHECK_PARAM(PARAM_TIMx(TIMx));
+    CHECK_PARAM(PARAM_TIM_INT_TYPE(IntFlag));
+    TIMx->IR |= TIM_IR_CLR(IntFlag);
+}
+
+/*********************************************************************//**
+ * @brief         Clear Capture Interrupt pending
+ * @param[in]    TIMx Timer selection, should be
+ *                - LPC_TIM0: TIMER0 peripheral
+ *                 - LPC_TIM1: TIMER1 peripheral
+ *                 - LPC_TIM2: TIMER2 peripheral
+ *                 - LPC_TIM3: TIMER3 peripheral
+ * @param[in]    IntFlag interrupt type, should be:
+ *                - TIM_MR0_INT: Interrupt for Match channel 0
+ *                 - TIM_MR1_INT: Interrupt for Match channel 1
+ *                 - TIM_MR2_INT: Interrupt for Match channel 2
+ *                 - TIM_MR3_INT: Interrupt for Match channel 3
+ *                 - TIM_CR0_INT: Interrupt for Capture channel 0
+ *                 - TIM_CR1_INT: Interrupt for Capture channel 1
+ * @return         None
+ **********************************************************************/
+void TIM_ClearIntCapturePending(LPC_TIM_TypeDef *TIMx, TIM_INT_TYPE IntFlag)
+{
+    CHECK_PARAM(PARAM_TIMx(TIMx));
+    CHECK_PARAM(PARAM_TIM_INT_TYPE(IntFlag));
+    TIMx->IR |= (1<<(4+IntFlag));
+}
+
+/*********************************************************************//**
+ * @brief         Configuration for Timer at initial time
+ * @param[in]     TimerCounterMode timer counter mode, should be:
+ *                 - TIM_TIMER_MODE: Timer mode
+ *                 - TIM_COUNTER_RISING_MODE: Counter rising mode
+ *                 - TIM_COUNTER_FALLING_MODE: Counter falling mode
+ *                 - TIM_COUNTER_ANY_MODE:Counter on both edges
+ * @param[in]     TIM_ConfigStruct pointer to TIM_TIMERCFG_Type or
+ *                 TIM_COUNTERCFG_Type
+ * @return         None
+ **********************************************************************/
+void TIM_ConfigStructInit(TIM_MODE_OPT TimerCounterMode, void *TIM_ConfigStruct)
+{
+    if (TimerCounterMode == TIM_TIMER_MODE )
+    {
+        TIM_TIMERCFG_Type * pTimeCfg = (TIM_TIMERCFG_Type *)TIM_ConfigStruct;
+        pTimeCfg->PrescaleOption = TIM_PRESCALE_USVAL;
+        pTimeCfg->PrescaleValue = 1;
+    }
+    else
+    {
+        TIM_COUNTERCFG_Type * pCounterCfg = (TIM_COUNTERCFG_Type *)TIM_ConfigStruct;
+        pCounterCfg->CountInputSelect = TIM_COUNTER_INCAP0;
+    }
+}
+
+/*********************************************************************//**
+ * @brief         Initial Timer/Counter device
+ *                      Set Clock frequency for Timer
+ *                     Set initial configuration for Timer
+ * @param[in]    TIMx  Timer selection, should be:
+ *                 - LPC_TIM0: TIMER0 peripheral
+ *                 - LPC_TIM1: TIMER1 peripheral
+ *                 - LPC_TIM2: TIMER2 peripheral
+ *                 - LPC_TIM3: TIMER3 peripheral
+ * @param[in]    TimerCounterMode Timer counter mode, should be:
+ *                 - TIM_TIMER_MODE: Timer mode
+ *                 - TIM_COUNTER_RISING_MODE: Counter rising mode
+ *                 - TIM_COUNTER_FALLING_MODE: Counter falling mode
+ *                 - TIM_COUNTER_ANY_MODE:Counter on both edges
+ * @param[in]    TIM_ConfigStruct pointer to TIM_TIMERCFG_Type
+ *                 that contains the configuration information for the
+ *                    specified Timer peripheral.
+ * @return         None
+ **********************************************************************/
+void TIM_Init(LPC_TIM_TypeDef *TIMx, TIM_MODE_OPT TimerCounterMode, void *TIM_ConfigStruct)
+{
+    TIM_TIMERCFG_Type *pTimeCfg;
+    TIM_COUNTERCFG_Type *pCounterCfg;
+
+    CHECK_PARAM(PARAM_TIMx(TIMx));
+    CHECK_PARAM(PARAM_TIM_MODE_OPT(TimerCounterMode));
+
+    //set power
+    if (TIMx== LPC_TIM0)
+    {
+        CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM0, ENABLE);
+        CLKPWR_SetPCLKDiv (CLKPWR_PCLKSEL_TIMER0, CLKPWR_PCLKSEL_CCLK_DIV_4);
+    }
+    else if (TIMx== LPC_TIM1)
+    {
+        CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM1, ENABLE);
+        CLKPWR_SetPCLKDiv (CLKPWR_PCLKSEL_TIMER1, CLKPWR_PCLKSEL_CCLK_DIV_4);
+
+    }
+
+    else if (TIMx== LPC_TIM2)
+    {
+        CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM2, ENABLE);
+        CLKPWR_SetPCLKDiv (CLKPWR_PCLKSEL_TIMER2, CLKPWR_PCLKSEL_CCLK_DIV_4);
+    }
+    else if (TIMx== LPC_TIM3)
+    {
+        CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM3, ENABLE);
+        CLKPWR_SetPCLKDiv (CLKPWR_PCLKSEL_TIMER3, CLKPWR_PCLKSEL_CCLK_DIV_4);
+
+    }
+
+    TIMx->CCR &= ~TIM_CTCR_MODE_MASK;
+    TIMx->CCR |= TIM_TIMER_MODE;
+
+    TIMx->TC =0;
+    TIMx->PC =0;
+    TIMx->PR =0;
+    TIMx->TCR |= (1<<1); //Reset Counter
+    TIMx->TCR &= ~(1<<1); //release reset
+    if (TimerCounterMode == TIM_TIMER_MODE )
+    {
+        pTimeCfg = (TIM_TIMERCFG_Type *)TIM_ConfigStruct;
+        if (pTimeCfg->PrescaleOption  == TIM_PRESCALE_TICKVAL)
+        {
+            TIMx->PR   = pTimeCfg->PrescaleValue -1  ;
+        }
+        else
+        {
+            TIMx->PR   = converUSecToVal (converPtrToTimeNum(TIMx),pTimeCfg->PrescaleValue)-1;
+        }
+    }
+    else
+    {
+
+        pCounterCfg = (TIM_COUNTERCFG_Type *)TIM_ConfigStruct;
+        TIMx->CCR  &= ~TIM_CTCR_INPUT_MASK;
+        if (pCounterCfg->CountInputSelect == TIM_COUNTER_INCAP1)
+            TIMx->CCR |= _BIT(2);
+    }
+
+    // Clear interrupt pending
+    TIMx->IR = 0xFFFFFFFF;
+
+}
+
+/*********************************************************************//**
+ * @brief         Close Timer/Counter device
+ * @param[in]    TIMx  Pointer to timer device, should be:
+ *                 - LPC_TIM0: TIMER0 peripheral
+ *                 - LPC_TIM1: TIMER1 peripheral
+ *                 - LPC_TIM2: TIMER2 peripheral
+ *                 - LPC_TIM3: TIMER3 peripheral
+ * @return         None
+ **********************************************************************/
+void TIM_DeInit (LPC_TIM_TypeDef *TIMx)
+{
+    CHECK_PARAM(PARAM_TIMx(TIMx));
+    // Disable timer/counter
+    TIMx->TCR = 0x00;
+
+    // Disable power
+    if (TIMx== LPC_TIM0)
+        CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM0, DISABLE);
+
+    else if (TIMx== LPC_TIM1)
+        CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM1, DISABLE);
+
+    else if (TIMx== LPC_TIM2)
+        CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM2, DISABLE);
+
+    else if (TIMx== LPC_TIM3)
+        CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM2, DISABLE);
+
+}
+
+/*********************************************************************//**
+ * @brief         Start/Stop Timer/Counter device
+ * @param[in]    TIMx Pointer to timer device, should be:
+ *              - LPC_TIM0: TIMER0 peripheral
+ *                 - LPC_TIM1: TIMER1 peripheral
+ *                 - LPC_TIM2: TIMER2 peripheral
+ *                 - LPC_TIM3: TIMER3 peripheral
+ * @param[in]    NewState
+ *                 -    ENABLE  : set timer enable
+ *                 -    DISABLE : disable timer
+ * @return         None
+ **********************************************************************/
+void TIM_Cmd(LPC_TIM_TypeDef *TIMx, FunctionalState NewState)
+{
+    CHECK_PARAM(PARAM_TIMx(TIMx));
+    if (NewState == ENABLE)
+    {
+        TIMx->TCR    |=  TIM_ENABLE;
+    }
+    else
+    {
+        TIMx->TCR &= ~TIM_ENABLE;
+    }
+}
+
+/*********************************************************************//**
+ * @brief         Reset Timer/Counter device,
+ *                     Make TC and PC are synchronously reset on the next
+ *                     positive edge of PCLK
+ * @param[in]    TIMx Pointer to timer device, should be:
+ *               - LPC_TIM0: TIMER0 peripheral
+ *                 - LPC_TIM1: TIMER1 peripheral
+ *                 - LPC_TIM2: TIMER2 peripheral
+ *                 - LPC_TIM3: TIMER3 peripheral
+ * @return         None
+ **********************************************************************/
+void TIM_ResetCounter(LPC_TIM_TypeDef *TIMx)
+{
+    CHECK_PARAM(PARAM_TIMx(TIMx));
+    TIMx->TCR |= TIM_RESET;
+    TIMx->TCR &= ~TIM_RESET;
+}
+
+/*********************************************************************//**
+ * @brief         Configuration for Match register
+ * @param[in]    TIMx Pointer to timer device, should be:
+ *               - LPC_TIM0: TIMER0 peripheral
+ *                 - LPC_TIM1: TIMER1 peripheral
+ *                 - LPC_TIM2: TIMER2 peripheral
+ *                 - LPC_TIM3: TIMER3 peripheral
+ * @param[in]   TIM_MatchConfigStruct Pointer to TIM_MATCHCFG_Type
+ *                     - MatchChannel : choose channel 0 or 1
+ *                     - IntOnMatch     : if SET, interrupt will be generated when MRxx match
+ *                                     the value in TC
+ *                     - StopOnMatch     : if SET, TC and PC will be stopped whenM Rxx match
+ *                                     the value in TC
+ *                     - ResetOnMatch : if SET, Reset on MR0 when MRxx match
+ *                                     the value in TC
+ *                     -ExtMatchOutputType: Select output for external match
+ *                          +     0:    Do nothing for external output pin if match
+ *                         +   1:    Force external output pin to low if match
+ *                         +      2: Force external output pin to high if match
+ *                         +      3: Toggle external output pin if match
+ *                    MatchValue: Set the value to be compared with TC value
+ * @return         None
+ **********************************************************************/
+void TIM_ConfigMatch(LPC_TIM_TypeDef *TIMx, TIM_MATCHCFG_Type *TIM_MatchConfigStruct)
+{
+
+    CHECK_PARAM(PARAM_TIMx(TIMx));
+    CHECK_PARAM(PARAM_TIM_EXTMATCH_OPT(TIM_MatchConfigStruct->ExtMatchOutputType));
+
+    switch(TIM_MatchConfigStruct->MatchChannel)
+    {
+    case 0:
+        TIMx->MR0 = TIM_MatchConfigStruct->MatchValue;
+        break;
+    case 1:
+        TIMx->MR1 = TIM_MatchConfigStruct->MatchValue;
+        break;
+    case 2:
+        TIMx->MR2 = TIM_MatchConfigStruct->MatchValue;
+        break;
+    case 3:
+        TIMx->MR3 = TIM_MatchConfigStruct->MatchValue;
+        break;
+    default:
+        //Error match value
+        //Error loop
+        while(1);
+    }
+    //interrupt on MRn
+    TIMx->MCR &=~TIM_MCR_CHANNEL_MASKBIT(TIM_MatchConfigStruct->MatchChannel);
+
+    if (TIM_MatchConfigStruct->IntOnMatch)
+        TIMx->MCR |= TIM_INT_ON_MATCH(TIM_MatchConfigStruct->MatchChannel);
+
+    //reset on MRn
+    if (TIM_MatchConfigStruct->ResetOnMatch)
+        TIMx->MCR |= TIM_RESET_ON_MATCH(TIM_MatchConfigStruct->MatchChannel);
+
+    //stop on MRn
+    if (TIM_MatchConfigStruct->StopOnMatch)
+        TIMx->MCR |= TIM_STOP_ON_MATCH(TIM_MatchConfigStruct->MatchChannel);
+
+    // match output type
+
+    TIMx->EMR     &= ~TIM_EM_MASK(TIM_MatchConfigStruct->MatchChannel);
+    TIMx->EMR   |= TIM_EM_SET(TIM_MatchConfigStruct->MatchChannel,TIM_MatchConfigStruct->ExtMatchOutputType);
+}
+/*********************************************************************//**
+ * @brief         Update Match value
+ * @param[in]    TIMx Pointer to timer device, should be:
+ *               - LPC_TIM0: TIMER0 peripheral
+ *                 - LPC_TIM1: TIMER1 peripheral
+ *                 - LPC_TIM2: TIMER2 peripheral
+ *                 - LPC_TIM3: TIMER3 peripheral
+ * @param[in]    MatchChannel    Match channel, should be: 0..3
+ * @param[in]    MatchValue        updated match value
+ * @return         None
+ **********************************************************************/
+void TIM_UpdateMatchValue(LPC_TIM_TypeDef *TIMx,uint8_t MatchChannel, uint32_t MatchValue)
+{
+    CHECK_PARAM(PARAM_TIMx(TIMx));
+    switch(MatchChannel)
+    {
+    case 0:
+        TIMx->MR0 = MatchValue;
+        break;
+    case 1:
+        TIMx->MR1 = MatchValue;
+        break;
+    case 2:
+        TIMx->MR2 = MatchValue;
+        break;
+    case 3:
+        TIMx->MR3 = MatchValue;
+        break;
+    default:
+        //Error Loop
+        while(1);
+    }
+
+}
+/*********************************************************************//**
+ * @brief         Configuration for Capture register
+ * @param[in]    TIMx Pointer to timer device, should be:
+ *               - LPC_TIM0: TIMER0 peripheral
+ *                 - LPC_TIM1: TIMER1 peripheral
+ *                 - LPC_TIM2: TIMER2 peripheral
+ *                 - LPC_TIM3: TIMER3 peripheral
+ *                     - CaptureChannel: set the channel to capture data
+ *                     - RisingEdge    : if SET, Capture at rising edge
+ *                     - FallingEdge    : if SET, Capture at falling edge
+ *                     - IntOnCaption  : if SET, Capture generate interrupt
+ * @param[in]   TIM_CaptureConfigStruct    Pointer to TIM_CAPTURECFG_Type
+ * @return         None
+ **********************************************************************/
+void TIM_ConfigCapture(LPC_TIM_TypeDef *TIMx, TIM_CAPTURECFG_Type *TIM_CaptureConfigStruct)
+{
+
+    CHECK_PARAM(PARAM_TIMx(TIMx));
+    TIMx->CCR &= ~TIM_CCR_CHANNEL_MASKBIT(TIM_CaptureConfigStruct->CaptureChannel);
+
+    if (TIM_CaptureConfigStruct->RisingEdge)
+        TIMx->CCR |= TIM_CAP_RISING(TIM_CaptureConfigStruct->CaptureChannel);
+
+    if (TIM_CaptureConfigStruct->FallingEdge)
+        TIMx->CCR |= TIM_CAP_FALLING(TIM_CaptureConfigStruct->CaptureChannel);
+
+    if (TIM_CaptureConfigStruct->IntOnCaption)
+        TIMx->CCR |= TIM_INT_ON_CAP(TIM_CaptureConfigStruct->CaptureChannel);
+}
+
+/*********************************************************************//**
+ * @brief         Read value of capture register in timer/counter device
+ * @param[in]    TIMx Pointer to timer/counter device, should be:
+ *              - LPC_TIM0: TIMER0 peripheral
+ *                 - LPC_TIM1: TIMER1 peripheral
+ *                 - LPC_TIM2: TIMER2 peripheral
+ *                 - LPC_TIM3: TIMER3 peripheral
+ * @param[in]    CaptureChannel: capture channel number, should be:
+ *                 - TIM_COUNTER_INCAP0: CAPn.0 input pin for TIMERn
+ *                 - TIM_COUNTER_INCAP1: CAPn.1 input pin for TIMERn
+ * @return         Value of capture register
+ **********************************************************************/
+uint32_t TIM_GetCaptureValue(LPC_TIM_TypeDef *TIMx, TIM_COUNTER_INPUT_OPT CaptureChannel)
+{
+    CHECK_PARAM(PARAM_TIMx(TIMx));
+    CHECK_PARAM(PARAM_TIM_COUNTER_INPUT_OPT(CaptureChannel));
+
+    if(CaptureChannel==0)
+        return TIMx->CR0;
+    else
+        return TIMx->CR1;
+}
+
+/**
+ * @}
+ */
+
+#endif /* _TIMER */
+
+/**
+ * @}
+ */
+
+/* --------------------------------- End Of File ------------------------------ */