File content as of revision 0:1063a091a062:

/**
 * @file    : lpc17xx_rit.c
 * @brief    : Contains all functions support for RIT firmware library on LPC17xx
 * @version    : 1.0
 * @date    : 7. May. 2009
 * @author    : NguyenCao
 **************************************************************************
 * 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 RIT
 * @{
 */

/* Includes ------------------------------------------------------------------- */
#include "lpc17xx_rit.h"
#include "lpc17xx_clkpwr.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 _RIT

/* Public Functions ----------------------------------------------------------- */
/** @addtogroup RIT_Public_Functions
 * @{
 */

/******************************************************************************//*
 * @brief         Initial for RIT
 *                     - Turn on power and clock
 *                     - Setup default register values
 * @param[in]    RITx is RIT peripheral selected, should be: RIT
 * @return         None
 *******************************************************************************/
void RIT_Init(LPC_RIT_TypeDef *RITx)
{
    CHECK_PARAM(PARAM_RITx(RITx));
    CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCRIT, ENABLE);
    //Set up default register values
    RITx->RICOMPVAL = 0xFFFFFFFF;
    RITx->RIMASK    = 0x00000000;
    RITx->RICTRL    = 0x0C;
    RITx->RICOUNTER    = 0x00000000;
    // Turn on power and clock

}
/******************************************************************************//*
 * @brief         DeInitial for RIT
 *                     - Turn off power and clock
 *                     - ReSetup default register values
 * @param[in]    RITx is RIT peripheral selected, should be: RIT
 * @return         None
 *******************************************************************************/
void RIT_DeInit(LPC_RIT_TypeDef *RITx)
{
    CHECK_PARAM(PARAM_RITx(RITx));

    // Turn off power and clock
    CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCRIT, DISABLE);
    //ReSetup default register values
    RITx->RICOMPVAL = 0xFFFFFFFF;
    RITx->RIMASK    = 0x00000000;
    RITx->RICTRL    = 0x0C;
    RITx->RICOUNTER    = 0x00000000;
}
/******************************************************************************//*
 * @brief         Set compare value, mask value and time counter value
 * @param[in]    RITx is RIT peripheral selected, should be: RIT
 * @param[in]    value: pointer to RIT_CMP_VAL Structure
 * @return         None
 *******************************************************************************/
void RIT_TimerConfig(LPC_RIT_TypeDef *RITx, RIT_CMP_VAL *value)
{
    CHECK_PARAM(PARAM_RITx(RITx));

    RITx->RICOMPVAL    = value->CMPVAL;
    RITx->RIMASK    = value->MASKVAL;
    RITx->RICOUNTER    = value->COUNTVAL;
}
/******************************************************************************//*
 * @brief         Enable/Disable Timer
 * @param[in]    RITx is RIT peripheral selected, should be: RIT
 * @param[in]    NewState     New State of this function
 *                     -ENABLE: Enable Timer
 *                     -DISABLE: Disable Timer
 * @return         None
 *******************************************************************************/
void RIT_Cmd(LPC_RIT_TypeDef *RITx, FunctionalState NewState)
{
    CHECK_PARAM(PARAM_RITx(RITx));
    CHECK_PARAM(PARAM_FUNCTIONALSTATE(NewState));

    //Enable or Disable Timer
    if(NewState==ENABLE)
    {
        RITx->RICTRL |= RIT_CTRL_TEN;
    }
    else
    {
        RITx->RICTRL &= ~RIT_CTRL_TEN;
    }
}
/******************************************************************************//*
 * @brief         Timer Enable/Disable Clear
 * @param[in]    RITx is RIT peripheral selected, should be: RIT
 * @param[in]    NewState     New State of this function
 *                         -ENABLE: The timer will be cleared to 0 whenever
 *                 the counter value equals the masked compare value specified
 *                 by the contents of RICOMPVAL and RIMASK register
 *                         -DISABLE: The timer will not be clear to 0
 * @return         None
 *******************************************************************************/
void RIT_TimerClearCmd(LPC_RIT_TypeDef *RITx, FunctionalState NewState)
{
    CHECK_PARAM(PARAM_RITx(RITx));
    CHECK_PARAM(PARAM_FUNCTIONALSTATE(NewState));

    //Timer Enable/Disable Clear
    if(NewState==ENABLE)
    {
        RITx->RICTRL |= RIT_CTRL_ENCLR;
    }
    else
    {
        RITx->RICTRL &= ~RIT_CTRL_ENCLR;
    }
}
/******************************************************************************//*
 * @brief         Timer Enable/Disable on break
 * @param[in]    RITx is RIT peripheral selected, should be: RIT
 * @param[in]    NewState     New State of this function
 *                     -ENABLE: The timer is halted whenever a hardware break condition occurs
 *                     -DISABLE: Hardware break has no effect on the timer operation
 * @return         None
 *******************************************************************************/
void RIT_TimerEnableOnBreakCmd(LPC_RIT_TypeDef *RITx, FunctionalState NewState)
{
    CHECK_PARAM(PARAM_RITx(RITx));
    CHECK_PARAM(PARAM_FUNCTIONALSTATE(NewState));

    //Timer Enable/Disable on break
    if(NewState==ENABLE)
    {
        RITx->RICTRL |= RIT_CTRL_ENBR;
    }
    else
    {
        RITx->RICTRL &= ~RIT_CTRL_ENBR;
    }
}
/******************************************************************************//*
 * @brief         Check whether interrupt flag is set or not
 * @param[in]    RITx is RIT peripheral selected, should be: RIT
 * @return         Current interrupt status, could be: SET/RESET
 *******************************************************************************/
IntStatus RIT_GetIntStatus(LPC_RIT_TypeDef *RITx)
{
    IntStatus result;
    CHECK_PARAM(PARAM_RITx(RITx));
    if((RITx->RICTRL&RIT_CTRL_INTEN)==1)    result= SET;
    else return RESET;
    //clear interrupt flag
    RITx->RICTRL |= RIT_CTRL_INTEN;
    return result;
}

/**
 * @}
 */

#endif /* _RIT */

/**
 * @}
 */

/* --------------------------------- End Of File ------------------------------ */