lpc17xx_rit.c
195 lines
| 6.7 KiB
| text/x-c
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CLexer
jeandet@pc-de-jeandet3.LAB-LPP.LOCAL
|
r18 | /** | ||
| * @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) | ||||
| { | ||||
| uint8_t 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 ------------------------------ */ | ||||