LPC1700CMSIS Standard Peripheral Firmware Library: C:/nxpdrv/LPC1700CMSIS/Drivers/source/lpc17xx_rit.c Source File

LPC1700CMSIS

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C:/nxpdrv/LPC1700CMSIS/Drivers/source/lpc17xx_rit.c

00001 
00020 /* Peripheral group ----------------------------------------------------------- */
00025 /* Includes ------------------------------------------------------------------- */
00026 #include "lpc17xx_rit.h"
00027 #include "lpc17xx_clkpwr.h"
00028 
00029 /* If this source file built with example, the LPC17xx FW library configuration
00030  * file in each example directory ("lpc17xx_libcfg.h") must be included,
00031  * otherwise the default FW library configuration file must be included instead
00032  */
00033 #ifdef __BUILD_WITH_EXAMPLE__
00034 #include "lpc17xx_libcfg.h"
00035 #else
00036 #include "lpc17xx_libcfg_default.h"
00037 #endif /* __BUILD_WITH_EXAMPLE__ */
00038 
00039 #ifdef _RIT
00040 
00041 /* Public Functions ----------------------------------------------------------- */
00046 /******************************************************************************//*
00047  * @brief               Initial for RIT
00048  *                                      - Turn on power and clock
00049  *                                      - Setup default register values
00050  * @param[in]   RITx is RIT peripheral selected, should be: RIT
00051  * @return              None
00052  *******************************************************************************/
00053 void RIT_Init(LPC_RIT_TypeDef *RITx)
00054 {
00055         CHECK_PARAM(PARAM_RITx(RITx));
00056         CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCRIT, ENABLE);
00057         //Set up default register values
00058         RITx->RICOMPVAL = 0xFFFFFFFF;
00059         RITx->RIMASK    = 0x00000000;
00060         RITx->RICTRL    = 0x0C;
00061         RITx->RICOUNTER = 0x00000000;
00062         // Turn on power and clock
00063 
00064 }
00065 /******************************************************************************//*
00066  * @brief               DeInitial for RIT
00067  *                                      - Turn off power and clock
00068  *                                      - ReSetup default register values
00069  * @param[in]   RITx is RIT peripheral selected, should be: RIT
00070  * @return              None
00071  *******************************************************************************/
00072 void RIT_DeInit(LPC_RIT_TypeDef *RITx)
00073 {
00074         CHECK_PARAM(PARAM_RITx(RITx));
00075 
00076         // Turn off power and clock
00077         CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCRIT, DISABLE);
00078         //ReSetup default register values
00079         RITx->RICOMPVAL = 0xFFFFFFFF;
00080         RITx->RIMASK    = 0x00000000;
00081         RITx->RICTRL    = 0x0C;
00082         RITx->RICOUNTER = 0x00000000;
00083 }
00084 /******************************************************************************//*
00085  * @brief               Set compare value, mask value and time counter value
00086  * @param[in]   RITx is RIT peripheral selected, should be: RIT
00087  * @param[in]   value: pointer to RIT_CMP_VAL Structure
00088  * @return              None
00089  *******************************************************************************/
00090 void RIT_TimerConfig(LPC_RIT_TypeDef *RITx, RIT_CMP_VAL *value)
00091 {
00092         CHECK_PARAM(PARAM_RITx(RITx));
00093 
00094         RITx->RICOMPVAL = value->CMPVAL;
00095         RITx->RIMASK    = value->MASKVAL;
00096         RITx->RICOUNTER = value->COUNTVAL;
00097 }
00098 /******************************************************************************//*
00099  * @brief               Enable/Disable Timer
00100  * @param[in]   RITx is RIT peripheral selected, should be: RIT
00101  * @param[in]   NewState        New State of this function
00102  *                                      -ENABLE: Enable Timer
00103  *                                      -DISABLE: Disable Timer
00104  * @return              None
00105  *******************************************************************************/
00106 void RIT_Cmd(LPC_RIT_TypeDef *RITx, FunctionalState NewState)
00107 {
00108         CHECK_PARAM(PARAM_RITx(RITx));
00109         CHECK_PARAM(PARAM_FUNCTIONALSTATE(NewState));
00110 
00111         //Enable or Disable Timer
00112         if(NewState==ENABLE)
00113         {
00114                 RITx->RICTRL |= RIT_CTRL_TEN;
00115         }
00116         else
00117         {
00118                 RITx->RICTRL &= ~RIT_CTRL_TEN;
00119         }
00120 }
00121 /******************************************************************************//*
00122  * @brief               Timer Enable/Disable Clear
00123  * @param[in]   RITx is RIT peripheral selected, should be: RIT
00124  * @param[in]   NewState        New State of this function
00125  *                                              -ENABLE: The timer will be cleared to 0 whenever
00126  *                              the counter value equals the masked compare value specified
00127  *                              by the contents of RICOMPVAL and RIMASK register
00128  *                                              -DISABLE: The timer will not be clear to 0
00129  * @return              None
00130  *******************************************************************************/
00131 void RIT_TimerClearCmd(LPC_RIT_TypeDef *RITx, FunctionalState NewState)
00132 {
00133         CHECK_PARAM(PARAM_RITx(RITx));
00134         CHECK_PARAM(PARAM_FUNCTIONALSTATE(NewState));
00135 
00136         //Timer Enable/Disable Clear
00137         if(NewState==ENABLE)
00138         {
00139                 RITx->RICTRL |= RIT_CTRL_ENCLR;
00140         }
00141         else
00142         {
00143                 RITx->RICTRL &= ~RIT_CTRL_ENCLR;
00144         }
00145 }
00146 /******************************************************************************//*
00147  * @brief               Timer Enable/Disable on break
00148  * @param[in]   RITx is RIT peripheral selected, should be: RIT
00149  * @param[in]   NewState        New State of this function
00150  *                                      -ENABLE: The timer is halted whenever a hardware break condition occurs
00151  *                                      -DISABLE: Hardware break has no effect on the timer operation
00152  * @return              None
00153  *******************************************************************************/
00154 void RIT_TimerEnableOnBreakCmd(LPC_RIT_TypeDef *RITx, FunctionalState NewState)
00155 {
00156         CHECK_PARAM(PARAM_RITx(RITx));
00157         CHECK_PARAM(PARAM_FUNCTIONALSTATE(NewState));
00158 
00159         //Timer Enable/Disable on break
00160         if(NewState==ENABLE)
00161         {
00162                 RITx->RICTRL |= RIT_CTRL_ENBR;
00163         }
00164         else
00165         {
00166                 RITx->RICTRL &= ~RIT_CTRL_ENBR;
00167         }
00168 }
00169 /******************************************************************************//*
00170  * @brief               Check whether interrupt flag is set or not
00171  * @param[in]   RITx is RIT peripheral selected, should be: RIT
00172  * @return              Current interrupt status, could be: SET/RESET
00173  *******************************************************************************/
00174 IntStatus RIT_GetIntStatus(LPC_RIT_TypeDef *RITx)
00175 {
00176         uint8_t result;
00177         CHECK_PARAM(PARAM_RITx(RITx));
00178         if((RITx->RICTRL&RIT_CTRL_INTEN)==1)    result= SET;
00179         else return RESET;
00180         //clear interrupt flag
00181         RITx->RICTRL |= RIT_CTRL_INTEN;
00182         return result;
00183 }
00184 
00189 #endif /* _RIT */
00190 
00195 /* --------------------------------- End Of File ------------------------------ */
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