264 lines
9.8 KiB
C
264 lines
9.8 KiB
C
/**********************************************************************
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* $Id$ lpc43xx_evrt.c 2011-06-02
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*//**
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* @file lpc43xx_evrt.c
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* @brief Contains all functions support for Event Router firmware
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* library on lpc43xx
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* @version 1.0
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* @date 02. June. 2011
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* @author NXP MCU SW Application Team
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*
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* Copyright(C) 2011, NXP Semiconductor
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* All rights reserved.
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*
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***********************************************************************
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* Software that is described herein is for illustrative purposes only
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* which provides customers with programming information regarding the
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* products. This software is supplied "AS IS" without any warranties.
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* NXP Semiconductors assumes no responsibility or liability for the
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* use of the software, conveys no license or title under any patent,
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* copyright, or mask work right to the product. NXP Semiconductors
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* reserves the right to make changes in the software without
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* notification. NXP Semiconductors also make no representation or
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* warranty that such application will be suitable for the specified
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* use without further testing or modification.
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* Permission to use, copy, modify, and distribute this software and its
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* documentation is hereby granted, under NXP Semiconductors’
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* relevant copyright in the software, without fee, provided that it
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* is used in conjunction with NXP Semiconductors microcontrollers. This
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* copyright, permission, and disclaimer notice must appear in all copies of
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* this code.
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**********************************************************************/
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/* Peripheral group ----------------------------------------------------------- */
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/** @addtogroup EVRT
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* @{
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*/
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/* Includes ------------------------------------------------------------------- */
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#include "lpc43xx_evrt.h"
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/* If this source file built with example, the lpc43xx FW library configuration
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* file in each example directory ("lpc43xx_libcfg.h") must be included,
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* otherwise the default FW library configuration file must be included instead
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*/
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#ifdef __BUILD_WITH_EXAMPLE__
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#include "lpc43xx_libcfg.h"
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#else
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#include "lpc43xx_libcfg_default.h"
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#endif /* __BUILD_WITH_EXAMPLE__ */
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/* Public Functions ----------------------------------------------------------- */
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/** @addtogroup EVRT_Public_Functions
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* @{
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*/
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/********************************************************************//**
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* @brief Initializes the EVRT peripheral.
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* @param[in] EVRTx EVRT peripheral selected, should be: LPC_EVRT
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* @return None
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*********************************************************************/
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void EVRT_Init (LPC_EVENTROUTER_Type *EVRTx)
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{
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uint8_t i=0;
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CHECK_PARAM(PARAM_EVRTx(EVRTx));
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// Clear all register to be default
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EVRTx->HILO = 0x0000;
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EVRTx->EDGE = 0x0000;
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EVRTx->CLR_EN = 0xFFFF;
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do
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{
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i++;
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EVRTx->CLR_STAT = 0xFFFFF;
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}while((EVRTx->STATUS != 0)&&(i<10));
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}
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/*********************************************************************//**
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* @brief De-initializes the EVRT peripheral registers to their
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* default reset values.
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* @param[in] EVRTx EVRT peripheral selected, should be: LPC_EVRT
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* @return None
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**********************************************************************/
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void EVRT_DeInit(LPC_EVENTROUTER_Type *EVRTx)
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{
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CHECK_PARAM(PARAM_EVRTx(EVRTx));
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EVRTx->CLR_EN = 0xFFFF;
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EVRTx->CLR_STAT = 0xFFFF;
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}
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/*********************************************************************//**
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* @brief Setting up the type of interrupt sources to EVRT
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* @param[in] EVRTx EVRT peripheral selected, should be: LPC_EVRT
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* @param[in] EVRT_Src EVRT source, should be:
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* - EVRT_SRC_WAKEUP0 :WAKEUP0 event
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* - EVRT_SRC_WAKEUP1 :WAKEUP1 event
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* - EVRT_SRC_WAKEUP2 :WAKEUP2 event
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* - EVRT_SRC_WAKEUP3 :WAKEUP3 event
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* - EVRT_SRC_ATIMER :Alarm timer eveny
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* - EVRT_SRC_RTC :RTC event
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* - EVRT_SRC_BOD :BOD event
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* - EVRT_SRC_WWDT :WWDT event
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* - EVRT_SRC_ETHERNET :ETHERNET event
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* - EVRT_SRC_USB0 :USB0 event
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* - EVRT_SRC_USB1 :USB1 event
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* - EVRT_SRC_CCAN :CCAN event
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* - EVRT_SRC_COMBINE_TIMER2 :Combined timer output 2 event
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* - EVRT_SRC_COMBINE_TIMER6 :Combined timer output 6 event
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* - EVRT_SRC_QEI :QEI event
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* - EVRT_SRC_COMBINE_TIMER14 :Combined timer output 14 event
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* - EVRT_SRC_RESET :RESET event
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* type Active type, should be:
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* - EVRT_SRC_ACTIVE_LOW_LEVEL :Active low level
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* - EVRT_SRC_ACTIVE_HIGH_LEVEL :Active high level
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* - EVRT_SRC_ACTIVE_FALLING_EDGE :Active falling edge
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* - EVRT_SRC_ACTIVE_RISING_EDGE :Active rising edge
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* @param[in] type EVRT source active type, should be:
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* - EVRT_SRC_ACTIVE_LOW_LEVEL :Active low level
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* - EVRT_SRC_ACTIVE_HIGH_LEVEL :Active high level
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* - EVRT_SRC_ACTIVE_FALLING_EDGE :Active falling edge
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* - EVRT_SRC_ACTIVE_RISING_EDGE :Active rising edge
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* @return None
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**********************************************************************/
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void EVRT_ConfigIntSrcActiveType(LPC_EVENTROUTER_Type *EVRTx, EVRT_SRC_ENUM EVRT_Src, EVRT_SRC_ACTIVE_TYPE type)
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{
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CHECK_PARAM(PARAM_EVRTx(EVRTx));
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CHECK_PARAM(PARAM_EVRT_SOURCE(EVRT_Src));
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CHECK_PARAM(PARAM_EVRT_SOURCE_ACTIVE_TYPE(type));
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switch (type)
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{
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case EVRT_SRC_ACTIVE_LOW_LEVEL:
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EVRTx->HILO &= ~(1<<(uint8_t)EVRT_Src);
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EVRTx->EDGE &= ~(1<<(uint8_t)EVRT_Src);
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break;
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case EVRT_SRC_ACTIVE_HIGH_LEVEL:
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EVRTx->HILO |= (1<<(uint8_t)EVRT_Src);
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EVRTx->EDGE &= ~(1<<(uint8_t)EVRT_Src);
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break;
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case EVRT_SRC_ACTIVE_FALLING_EDGE:
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EVRTx->HILO &= ~(1<<(uint8_t)EVRT_Src);
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EVRTx->EDGE |= (1<<(uint8_t)EVRT_Src);
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break;
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case EVRT_SRC_ACTIVE_RISING_EDGE:
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EVRTx->HILO |= (1<<(uint8_t)EVRT_Src);
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EVRTx->EDGE |= (1<<(uint8_t)EVRT_Src);
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break;
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default:
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break;
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}
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}
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/*********************************************************************//**
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* @brief Enable or disable interrupt sources to EVRT
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* @param[in] EVRTx EVRT peripheral selected, should be LPC_EVRT
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* @param[in] EVRT_Src EVRT source, should be:
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* - EVRT_SRC_WAKEUP0 :WAKEUP0 event
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* - EVRT_SRC_WAKEUP1 :WAKEUP1 event
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* - EVRT_SRC_WAKEUP2 :WAKEUP2 event
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* - EVRT_SRC_WAKEUP3 :WAKEUP3 event
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* - EVRT_SRC_ATIMER :Alarm timer eveny
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* - EVRT_SRC_RTC :RTC event
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* - EVRT_SRC_BOD :BOD event
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* - EVRT_SRC_WWDT :WWDT event
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* - EVRT_SRC_ETHERNET :ETHERNET event
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* - EVRT_SRC_USB0 :USB0 event
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* - EVRT_SRC_USB1 :USB1 event
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* - EVRT_SRC_CCAN :CCAN event
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* - EVRT_SRC_COMBINE_TIMER2 :Combined timer output 2 event
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* - EVRT_SRC_COMBINE_TIMER6 :Combined timer output 6 event
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* - EVRT_SRC_QEI :QEI event
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* - EVRT_SRC_COMBINE_TIMER14 :Combined timer output 14 event
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* - EVRT_SRC_RESET :RESET event
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* @param[in] state ENABLE or DISABLE
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* @return None
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**********************************************************************/
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void EVRT_SetUpIntSrc(LPC_EVENTROUTER_Type *EVRTx, EVRT_SRC_ENUM EVRT_Src, FunctionalState state)
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{
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CHECK_PARAM(PARAM_EVRTx(EVRTx));
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CHECK_PARAM(PARAM_EVRT_SOURCE(EVRT_Src));
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if(state == ENABLE)
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EVRTx->SET_EN = (1<<(uint8_t)EVRT_Src);
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else
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EVRTx->CLR_EN = (1<<(uint8_t)EVRT_Src);
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}
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/*********************************************************************//**
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* @brief Check if a source is sending interrupt to EVRT
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* @param[in] EVRTx EVRT peripheral selected, should be LPC_EVRT
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* @param[in] EVRT_Src EVRT source, should be:
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* - EVRT_SRC_WAKEUP0 :WAKEUP0 event
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* - EVRT_SRC_WAKEUP1 :WAKEUP1 event
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* - EVRT_SRC_WAKEUP2 :WAKEUP2 event
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* - EVRT_SRC_WAKEUP3 :WAKEUP3 event
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* - EVRT_SRC_ATIMER :Alarm timer eveny
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* - EVRT_SRC_RTC :RTC event
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* - EVRT_SRC_BOD :BOD event
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* - EVRT_SRC_WWDT :WWDT event
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* - EVRT_SRC_ETHERNET :ETHERNET event
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* - EVRT_SRC_USB0 :USB0 event
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* - EVRT_SRC_USB1 :USB1 event
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* - EVRT_SRC_CCAN :CCAN event
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* - EVRT_SRC_COMBINE_TIMER2 :Combined timer output 2 event
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* - EVRT_SRC_COMBINE_TIMER6 :Combined timer output 6 event
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* - EVRT_SRC_QEI :QEI event
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* - EVRT_SRC_COMBINE_TIMER14 :Combined timer output 14 event
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* - EVRT_SRC_RESET :RESET event
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* @return TRUE or FALSE
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**********************************************************************/
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Bool EVRT_IsSourceInterrupting(LPC_EVENTROUTER_Type *EVRTx, EVRT_SRC_ENUM EVRT_Src)
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{
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CHECK_PARAM(PARAM_EVRTx(EVRTx));
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CHECK_PARAM(PARAM_EVRT_SOURCE(EVRT_Src));
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if(EVRTx->STATUS & (1<<(uint8_t)EVRT_Src))
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return TRUE;
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else return FALSE;
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}
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/*********************************************************************//**
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* @brief Clear pending interrupt EVRT source
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* @param[in] EVRTx EVRT peripheral selected, should be LPC_EVRT
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* @param[in] EVRT_Src EVRT source, should be:
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* - EVRT_SRC_WAKEUP0 :WAKEUP0 event
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* - EVRT_SRC_WAKEUP1 :WAKEUP1 event
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* - EVRT_SRC_WAKEUP2 :WAKEUP2 event
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* - EVRT_SRC_WAKEUP3 :WAKEUP3 event
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* - EVRT_SRC_ATIMER :Alarm timer eveny
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* - EVRT_SRC_RTC :RTC event
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* - EVRT_SRC_BOD :BOD event
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* - EVRT_SRC_WWDT :WWDT event
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* - EVRT_SRC_ETHERNET :ETHERNET event
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* - EVRT_SRC_USB0 :USB0 event
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* - EVRT_SRC_USB1 :USB1 event
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* - EVRT_SRC_CCAN :CCAN event
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* - EVRT_SRC_COMBINE_TIMER2 :Combined timer output 2 event
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* - EVRT_SRC_COMBINE_TIMER6 :Combined timer output 6 event
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* - EVRT_SRC_QEI :QEI event
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* - EVRT_SRC_COMBINE_TIMER14 :Combined timer output 14 event
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* - EVRT_SRC_RESET :RESET event
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* @return none
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**********************************************************************/
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void EVRT_ClrPendIntSrc(LPC_EVENTROUTER_Type *EVRTx, EVRT_SRC_ENUM EVRT_Src)
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{
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CHECK_PARAM(PARAM_EVRTx(EVRTx));
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CHECK_PARAM(PARAM_EVRT_SOURCE(EVRT_Src));
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EVRTx->CLR_STAT = (1<<(uint8_t)EVRT_Src);
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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/* --------------------------------- End Of File ------------------------------ */
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