Fork of Smoothie to port to mbed non-LPC targets.
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Diff: libs/LPC17xx/LPC17xxLib/src/lpc17xx_rit.c
- Revision:
- 3:f151d08d335c
- Parent:
- 2:1df0b61d3b5a
--- a/libs/LPC17xx/LPC17xxLib/src/lpc17xx_rit.c Fri Feb 28 18:52:52 2014 -0800 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,196 +0,0 @@ -#ifdef __LPC17XX__ - -/********************************************************************** -* $Id$ lpc17xx_rit.c 2010-05-21 -*//** -* @file lpc17xx_rit.c -* @brief Contains all functions support for RIT 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. -**********************************************************************/ - -/* 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: LPC_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: LPC_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: LPC_RIT - * @param[in] time_interval: timer interval value (ms) - * @return None - *******************************************************************************/ -void RIT_TimerConfig(LPC_RIT_TypeDef *RITx, uint32_t time_interval) -{ - uint32_t clock_rate, cmp_value; - CHECK_PARAM(PARAM_RITx(RITx)); - - // Get PCLK value of RIT - clock_rate = CLKPWR_GetPCLK(CLKPWR_PCLKSEL_RIT); - - /* calculate compare value for RIT to generate interrupt at - * specified time interval - * COMPVAL = (RIT_PCLK * time_interval)/1000 - * (with time_interval unit is millisecond) - */ - cmp_value = (clock_rate /1000) * time_interval; - RITx->RICOMPVAL = cmp_value; - - /* Set timer enable clear bit to clear timer to 0 whenever - * counter value equals the contents of RICOMPVAL - */ - RITx->RICTRL |= (1<<1); -} - - -/******************************************************************************//* - * @brief Enable/Disable Timer - * @param[in] RITx is RIT peripheral selected, should be: LPC_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 on debug - * @param[in] RITx is RIT peripheral selected, should be: LPC_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_TimerDebugCmd(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: LPC_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 (IntStatus)result; -} - -/** - * @} - */ - -#endif /* _RIT */ - -/** - * @} - */ - -/* --------------------------------- End Of File ------------------------------ */ -#endif /* __LPC17XX__ */