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510 lines
20 KiB
C
510 lines
20 KiB
C
/**********************************************************************
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* $Id$ lpc17xx_mcpwm.c 2010-05-21
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*//**
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* @file lpc17xx_mcpwm.c
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* @brief Contains all functions support for Motor Control PWM firmware
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* library on LPC17xx
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* @version 2.0
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* @date 21. May. 2010
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* @author NXP MCU SW Application Team
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*
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* Copyright(C) 2010, 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 MCPWM
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* @{
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*/
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/* Includes ------------------------------------------------------------------- */
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#include "lpc17xx_mcpwm.h"
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#include "lpc17xx_clkpwr.h"
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/* If this source file built with example, the LPC17xx FW library configuration
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* file in each example directory ("lpc17xx_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 "lpc17xx_libcfg.h"
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#else
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#include "lpc17xx_libcfg_default.h"
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#endif /* __BUILD_WITH_EXAMPLE__ */
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#ifdef _MCPWM
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/* Public Functions ----------------------------------------------------------- */
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/** @addtogroup MCPWM_Public_Functions
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* @{
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*/
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/*********************************************************************//**
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* @brief Initializes the MCPWM peripheral
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* @param[in] MCPWMx Motor Control PWM peripheral selected,
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* Should be: LPC_MCPWM
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* @return None
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**********************************************************************/
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void MCPWM_Init(LPC_MCPWM_TypeDef *MCPWMx)
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{
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/* Turn On MCPWM PCLK */
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CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCMC, ENABLE);
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/* As default, peripheral clock for MCPWM module
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* is set to FCCLK / 2 */
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// CLKPWR_SetPCLKDiv(CLKPWR_PCLKSEL_MC, CLKPWR_PCLKSEL_CCLK_DIV_2);
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MCPWMx->MCCAP_CLR = MCPWM_CAPCLR_CAP(0) | MCPWM_CAPCLR_CAP(1) | MCPWM_CAPCLR_CAP(2);
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MCPWMx->MCINTFLAG_CLR = MCPWM_INT_ILIM(0) | MCPWM_INT_ILIM(1) | MCPWM_INT_ILIM(2) \
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| MCPWM_INT_IMAT(0) | MCPWM_INT_IMAT(1) | MCPWM_INT_IMAT(2) \
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| MCPWM_INT_ICAP(0) | MCPWM_INT_ICAP(1) | MCPWM_INT_ICAP(2);
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MCPWMx->MCINTEN_CLR = MCPWM_INT_ILIM(0) | MCPWM_INT_ILIM(1) | MCPWM_INT_ILIM(2) \
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| MCPWM_INT_IMAT(0) | MCPWM_INT_IMAT(1) | MCPWM_INT_IMAT(2) \
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| MCPWM_INT_ICAP(0) | MCPWM_INT_ICAP(1) | MCPWM_INT_ICAP(2);
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}
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/*********************************************************************//**
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* @brief Configures each channel in MCPWM peripheral according to the
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* specified parameters in the MCPWM_CHANNEL_CFG_Type.
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* @param[in] MCPWMx Motor Control PWM peripheral selected
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* should be: LPC_MCPWM
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* @param[in] channelNum Channel number, should be: 0..2.
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* @param[in] channelSetup Pointer to a MCPWM_CHANNEL_CFG_Type structure
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* that contains the configuration information for the
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* specified MCPWM channel.
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* @return None
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**********************************************************************/
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void MCPWM_ConfigChannel(LPC_MCPWM_TypeDef *MCPWMx, uint32_t channelNum,
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MCPWM_CHANNEL_CFG_Type * channelSetup)
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{
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if (channelNum <= 2) {
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if (channelNum == 0) {
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MCPWMx->MCTIM0 = channelSetup->channelTimercounterValue;
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MCPWMx->MCPER0 = channelSetup->channelPeriodValue;
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MCPWMx->MCPW0 = channelSetup->channelPulsewidthValue;
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} else if (channelNum == 1) {
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MCPWMx->MCTIM1 = channelSetup->channelTimercounterValue;
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MCPWMx->MCPER1 = channelSetup->channelPeriodValue;
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MCPWMx->MCPW1 = channelSetup->channelPulsewidthValue;
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} else if (channelNum == 2) {
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MCPWMx->MCTIM2 = channelSetup->channelTimercounterValue;
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MCPWMx->MCPER2 = channelSetup->channelPeriodValue;
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MCPWMx->MCPW2 = channelSetup->channelPulsewidthValue;
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} else {
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return;
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}
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if (channelSetup->channelType /* == MCPWM_CHANNEL_CENTER_MODE */){
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MCPWMx->MCCON_SET = MCPWM_CON_CENTER(channelNum);
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} else {
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MCPWMx->MCCON_CLR = MCPWM_CON_CENTER(channelNum);
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}
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if (channelSetup->channelPolarity /* == MCPWM_CHANNEL_PASSIVE_HI */){
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MCPWMx->MCCON_SET = MCPWM_CON_POLAR(channelNum);
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} else {
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MCPWMx->MCCON_CLR = MCPWM_CON_POLAR(channelNum);
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}
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if (channelSetup->channelDeadtimeEnable /* == ENABLE */){
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MCPWMx->MCCON_SET = MCPWM_CON_DTE(channelNum);
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MCPWMx->MCDEADTIME &= ~(MCPWM_DT(channelNum, 0x3FF));
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MCPWMx->MCDEADTIME |= MCPWM_DT(channelNum, channelSetup->channelDeadtimeValue);
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} else {
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MCPWMx->MCCON_CLR = MCPWM_CON_DTE(channelNum);
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}
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if (channelSetup->channelUpdateEnable /* == ENABLE */){
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MCPWMx->MCCON_CLR = MCPWM_CON_DISUP(channelNum);
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} else {
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MCPWMx->MCCON_SET = MCPWM_CON_DISUP(channelNum);
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}
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}
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}
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/*********************************************************************//**
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* @brief Write to MCPWM shadow registers - Update the value for period
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* and pulse width in MCPWM peripheral.
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* @param[in] MCPWMx Motor Control PWM peripheral selected
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* Should be: LPC_MCPWM
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* @param[in] channelNum Channel Number, should be: 0..2.
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* @param[in] channelSetup Pointer to a MCPWM_CHANNEL_CFG_Type structure
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* that contains the configuration information for the
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* specified MCPWM channel.
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* @return None
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**********************************************************************/
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void MCPWM_WriteToShadow(LPC_MCPWM_TypeDef *MCPWMx, uint32_t channelNum,
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MCPWM_CHANNEL_CFG_Type *channelSetup)
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{
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if (channelNum == 0){
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MCPWMx->MCPER0 = channelSetup->channelPeriodValue;
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MCPWMx->MCPW0 = channelSetup->channelPulsewidthValue;
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} else if (channelNum == 1) {
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MCPWMx->MCPER1 = channelSetup->channelPeriodValue;
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MCPWMx->MCPW1 = channelSetup->channelPulsewidthValue;
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} else if (channelNum == 2) {
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MCPWMx->MCPER2 = channelSetup->channelPeriodValue;
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MCPWMx->MCPW2 = channelSetup->channelPulsewidthValue;
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}
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}
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/*********************************************************************//**
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* @brief Configures capture function in MCPWM peripheral
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* @param[in] MCPWMx Motor Control PWM peripheral selected
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* Should be: LPC_MCPWM
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* @param[in] channelNum MCI (Motor Control Input pin) number
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* Should be: 0..2
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* @param[in] captureConfig Pointer to a MCPWM_CAPTURE_CFG_Type structure
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* that contains the configuration information for the
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* specified MCPWM capture.
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* @return
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**********************************************************************/
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void MCPWM_ConfigCapture(LPC_MCPWM_TypeDef *MCPWMx, uint32_t channelNum,
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MCPWM_CAPTURE_CFG_Type *captureConfig)
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{
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if (channelNum <= 2) {
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if (captureConfig->captureFalling /* == ENABLE */) {
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MCPWMx->MCCAPCON_SET = MCPWM_CAPCON_CAPMCI_FE(captureConfig->captureChannel, channelNum);
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} else {
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MCPWMx->MCCAPCON_CLR = MCPWM_CAPCON_CAPMCI_FE(captureConfig->captureChannel, channelNum);
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}
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if (captureConfig->captureRising /* == ENABLE */) {
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MCPWMx->MCCAPCON_SET = MCPWM_CAPCON_CAPMCI_RE(captureConfig->captureChannel, channelNum);
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} else {
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MCPWMx->MCCAPCON_CLR = MCPWM_CAPCON_CAPMCI_RE(captureConfig->captureChannel, channelNum);
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}
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if (captureConfig->timerReset /* == ENABLE */){
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MCPWMx->MCCAPCON_SET = MCPWM_CAPCON_RT(captureConfig->captureChannel);
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} else {
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MCPWMx->MCCAPCON_CLR = MCPWM_CAPCON_RT(captureConfig->captureChannel);
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}
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if (captureConfig->hnfEnable /* == ENABLE */){
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MCPWMx->MCCAPCON_SET = MCPWM_CAPCON_HNFCAP(channelNum);
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} else {
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MCPWMx->MCCAPCON_CLR = MCPWM_CAPCON_HNFCAP(channelNum);
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}
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}
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}
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/*********************************************************************//**
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* @brief Clears current captured value in specified capture channel
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* @param[in] MCPWMx Motor Control PWM peripheral selected
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* Should be: LPC_MCPWM
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* @param[in] captureChannel Capture channel number, should be: 0..2
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* @return None
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**********************************************************************/
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void MCPWM_ClearCapture(LPC_MCPWM_TypeDef *MCPWMx, uint32_t captureChannel)
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{
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MCPWMx->MCCAP_CLR = MCPWM_CAPCLR_CAP(captureChannel);
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}
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/*********************************************************************//**
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* @brief Get current captured value in specified capture channel
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* @param[in] MCPWMx Motor Control PWM peripheral selected,
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* Should be: LPC_MCPWM
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* @param[in] captureChannel Capture channel number, should be: 0..2
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* @return None
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**********************************************************************/
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uint32_t MCPWM_GetCapture(LPC_MCPWM_TypeDef *MCPWMx, uint32_t captureChannel)
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{
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if (captureChannel == 0){
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return (MCPWMx->MCCR0);
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} else if (captureChannel == 1) {
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return (MCPWMx->MCCR1);
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} else if (captureChannel == 2) {
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return (MCPWMx->MCCR2);
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}
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return (0);
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}
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/*********************************************************************//**
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* @brief Configures Count control in MCPWM peripheral
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* @param[in] MCPWMx Motor Control PWM peripheral selected
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* Should be: LPC_MCPWM
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* @param[in] channelNum Channel number, should be: 0..2
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* @param[in] countMode Count mode, should be:
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* - ENABLE: Enables count mode.
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* - DISABLE: Disable count mode, the channel is in timer mode.
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* @param[in] countConfig Pointer to a MCPWM_COUNT_CFG_Type structure
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* that contains the configuration information for the
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* specified MCPWM count control.
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* @return None
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**********************************************************************/
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void MCPWM_CountConfig(LPC_MCPWM_TypeDef *MCPWMx, uint32_t channelNum,
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uint32_t countMode, MCPWM_COUNT_CFG_Type *countConfig)
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{
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if (channelNum <= 2) {
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if (countMode /* == ENABLE */){
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MCPWMx->MCCNTCON_SET = MCPWM_CNTCON_CNTR(channelNum);
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if (countConfig->countFalling /* == ENABLE */) {
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MCPWMx->MCCNTCON_SET = MCPWM_CNTCON_TCMCI_FE(countConfig->counterChannel,channelNum);
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} else {
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MCPWMx->MCCNTCON_CLR = MCPWM_CNTCON_TCMCI_FE(countConfig->counterChannel,channelNum);
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}
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if (countConfig->countRising /* == ENABLE */) {
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MCPWMx->MCCNTCON_SET = MCPWM_CNTCON_TCMCI_RE(countConfig->counterChannel,channelNum);
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} else {
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MCPWMx->MCCNTCON_CLR = MCPWM_CNTCON_TCMCI_RE(countConfig->counterChannel,channelNum);
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}
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} else {
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MCPWMx->MCCNTCON_CLR = MCPWM_CNTCON_CNTR(channelNum);
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}
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}
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}
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/*********************************************************************//**
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* @brief Start MCPWM activity for each MCPWM channel
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* @param[in] MCPWMx Motor Control PWM peripheral selected
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* Should be: LPC_MCPWM
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* @param[in] channel0 State of this command on channel 0:
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* - ENABLE: 'Start' command will effect on channel 0
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* - DISABLE: 'Start' command will not effect on channel 0
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* @param[in] channel1 State of this command on channel 1:
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* - ENABLE: 'Start' command will effect on channel 1
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* - DISABLE: 'Start' command will not effect on channel 1
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* @param[in] channel2 State of this command on channel 2:
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* - ENABLE: 'Start' command will effect on channel 2
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* - DISABLE: 'Start' command will not effect on channel 2
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* @return None
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**********************************************************************/
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void MCPWM_Start(LPC_MCPWM_TypeDef *MCPWMx, uint32_t channel0,
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uint32_t channel1, uint32_t channel2)
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{
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uint32_t regVal = 0;
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regVal = (channel0 ? MCPWM_CON_RUN(0) : 0) | (channel1 ? MCPWM_CON_RUN(1) : 0) \
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| (channel2 ? MCPWM_CON_RUN(2) : 0);
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MCPWMx->MCCON_SET = regVal;
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}
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/*********************************************************************//**
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* @brief Stop MCPWM activity for each MCPWM channel
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* @param[in] MCPWMx Motor Control PWM peripheral selected
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* Should be: LPC_MCPWM
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* @param[in] channel0 State of this command on channel 0:
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* - ENABLE: 'Stop' command will effect on channel 0
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* - DISABLE: 'Stop' command will not effect on channel 0
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* @param[in] channel1 State of this command on channel 1:
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* - ENABLE: 'Stop' command will effect on channel 1
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* - DISABLE: 'Stop' command will not effect on channel 1
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* @param[in] channel2 State of this command on channel 2:
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* - ENABLE: 'Stop' command will effect on channel 2
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* - DISABLE: 'Stop' command will not effect on channel 2
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* @return None
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**********************************************************************/
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void MCPWM_Stop(LPC_MCPWM_TypeDef *MCPWMx, uint32_t channel0,
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uint32_t channel1, uint32_t channel2)
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{
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uint32_t regVal = 0;
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regVal = (channel0 ? MCPWM_CON_RUN(0) : 0) | (channel1 ? MCPWM_CON_RUN(1) : 0) \
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| (channel2 ? MCPWM_CON_RUN(2) : 0);
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MCPWMx->MCCON_CLR = regVal;
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}
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/*********************************************************************//**
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* @brief Enables/Disables 3-phase AC motor mode on MCPWM peripheral
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* @param[in] MCPWMx Motor Control PWM peripheral selected
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* Should be: LPC_MCPWM
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* @param[in] acMode State of this command, should be:
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* - ENABLE.
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* - DISABLE.
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* @return None
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**********************************************************************/
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void MCPWM_ACMode(LPC_MCPWM_TypeDef *MCPWMx, uint32_t acMode)
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{
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if (acMode){
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MCPWMx->MCCON_SET = MCPWM_CON_ACMODE;
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} else {
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MCPWMx->MCCON_CLR = MCPWM_CON_ACMODE;
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}
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}
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/*********************************************************************//**
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* @brief Enables/Disables 3-phase DC motor mode on MCPWM peripheral
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* @param[in] MCPWMx Motor Control PWM peripheral selected
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* Should be: LPC_MCPWM
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* @param[in] dcMode State of this command, should be:
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* - ENABLE.
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* - DISABLE.
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* @param[in] outputInvered Polarity of the MCOB outputs for all 3 channels,
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* should be:
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* - ENABLE: The MCOB outputs have opposite polarity
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* from the MCOA outputs.
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* - DISABLE: The MCOB outputs have the same basic
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* polarity as the MCOA outputs.
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* @param[in] outputPattern A value contains bits that enables/disables the specified
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* output pins route to the internal MCOA0 signal, should be:
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- MCPWM_PATENT_A0: MCOA0 tracks internal MCOA0
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- MCPWM_PATENT_B0: MCOB0 tracks internal MCOA0
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- MCPWM_PATENT_A1: MCOA1 tracks internal MCOA0
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- MCPWM_PATENT_B1: MCOB1 tracks internal MCOA0
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- MCPWM_PATENT_A2: MCOA2 tracks internal MCOA0
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- MCPWM_PATENT_B2: MCOB2 tracks internal MCOA0
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* @return None
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*
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* Note: all these outputPatent values above can be ORed together for using as input parameter.
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**********************************************************************/
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void MCPWM_DCMode(LPC_MCPWM_TypeDef *MCPWMx, uint32_t dcMode,
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uint32_t outputInvered, uint32_t outputPattern)
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{
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if (dcMode){
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MCPWMx->MCCON_SET = MCPWM_CON_DCMODE;
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} else {
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MCPWMx->MCCON_CLR = MCPWM_CON_DCMODE;
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}
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if (outputInvered) {
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MCPWMx->MCCON_SET = MCPWM_CON_INVBDC;
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} else {
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MCPWMx->MCCON_CLR = MCPWM_CON_INVBDC;
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}
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MCPWMx->MCCCP = outputPattern;
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}
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/*********************************************************************//**
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* @brief Configures the specified interrupt in MCPWM peripheral
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* @param[in] MCPWMx Motor Control PWM peripheral selected
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* Should be: LPC_MCPWM
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* @param[in] ulIntType Interrupt type, should be:
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* - MCPWM_INTFLAG_LIM0: Limit interrupt for channel (0)
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* - MCPWM_INTFLAG_MAT0: Match interrupt for channel (0)
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* - MCPWM_INTFLAG_CAP0: Capture interrupt for channel (0)
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* - MCPWM_INTFLAG_LIM1: Limit interrupt for channel (1)
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* - MCPWM_INTFLAG_MAT1: Match interrupt for channel (1)
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* - MCPWM_INTFLAG_CAP1: Capture interrupt for channel (1)
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* - MCPWM_INTFLAG_LIM2: Limit interrupt for channel (2)
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* - MCPWM_INTFLAG_MAT2: Match interrupt for channel (2)
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* - MCPWM_INTFLAG_CAP2: Capture interrupt for channel (2)
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* - MCPWM_INTFLAG_ABORT: Fast abort interrupt
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* @param[in] NewState New State of this command, should be:
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* - ENABLE.
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* - DISABLE.
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* @return None
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*
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* Note: all these ulIntType values above can be ORed together for using as input parameter.
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**********************************************************************/
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void MCPWM_IntConfig(LPC_MCPWM_TypeDef *MCPWMx, uint32_t ulIntType, FunctionalState NewState)
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{
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if (NewState) {
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MCPWMx->MCINTEN_SET = ulIntType;
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} else {
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MCPWMx->MCINTEN_CLR = ulIntType;
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}
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}
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/*********************************************************************//**
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* @brief Sets/Forces the specified interrupt for MCPWM peripheral
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* @param[in] MCPWMx Motor Control PWM peripheral selected
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* Should be LPC_MCPWM
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* @param[in] ulIntType Interrupt type, should be:
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* - MCPWM_INTFLAG_LIM0: Limit interrupt for channel (0)
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* - MCPWM_INTFLAG_MAT0: Match interrupt for channel (0)
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* - MCPWM_INTFLAG_CAP0: Capture interrupt for channel (0)
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* - MCPWM_INTFLAG_LIM1: Limit interrupt for channel (1)
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* - MCPWM_INTFLAG_MAT1: Match interrupt for channel (1)
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* - MCPWM_INTFLAG_CAP1: Capture interrupt for channel (1)
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* - MCPWM_INTFLAG_LIM2: Limit interrupt for channel (2)
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* - MCPWM_INTFLAG_MAT2: Match interrupt for channel (2)
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* - MCPWM_INTFLAG_CAP2: Capture interrupt for channel (2)
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* - MCPWM_INTFLAG_ABORT: Fast abort interrupt
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* @return None
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* Note: all these ulIntType values above can be ORed together for using as input parameter.
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**********************************************************************/
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void MCPWM_IntSet(LPC_MCPWM_TypeDef *MCPWMx, uint32_t ulIntType)
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{
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MCPWMx->MCINTFLAG_SET = ulIntType;
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}
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|
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/*********************************************************************//**
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* @brief Clear the specified interrupt pending for MCPWM peripheral
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* @param[in] MCPWMx Motor Control PWM peripheral selected,
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* should be: LPC_MCPWM
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|
* @param[in] ulIntType Interrupt type, should be:
|
|
* - MCPWM_INTFLAG_LIM0: Limit interrupt for channel (0)
|
|
* - MCPWM_INTFLAG_MAT0: Match interrupt for channel (0)
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|
* - MCPWM_INTFLAG_CAP0: Capture interrupt for channel (0)
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|
* - MCPWM_INTFLAG_LIM1: Limit interrupt for channel (1)
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|
* - MCPWM_INTFLAG_MAT1: Match interrupt for channel (1)
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|
* - MCPWM_INTFLAG_CAP1: Capture interrupt for channel (1)
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|
* - MCPWM_INTFLAG_LIM2: Limit interrupt for channel (2)
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|
* - MCPWM_INTFLAG_MAT2: Match interrupt for channel (2)
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|
* - MCPWM_INTFLAG_CAP2: Capture interrupt for channel (2)
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|
* - MCPWM_INTFLAG_ABORT: Fast abort interrupt
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|
* @return None
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|
* Note: all these ulIntType values above can be ORed together for using as input parameter.
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|
**********************************************************************/
|
|
void MCPWM_IntClear(LPC_MCPWM_TypeDef *MCPWMx, uint32_t ulIntType)
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|
{
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MCPWMx->MCINTFLAG_CLR = ulIntType;
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}
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|
|
|
|
/*********************************************************************//**
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|
* @brief Check whether if the specified interrupt in MCPWM is set or not
|
|
* @param[in] MCPWMx Motor Control PWM peripheral selected,
|
|
* should be: LPC_MCPWM
|
|
* @param[in] ulIntType Interrupt type, should be:
|
|
* - MCPWM_INTFLAG_LIM0: Limit interrupt for channel (0)
|
|
* - MCPWM_INTFLAG_MAT0: Match interrupt for channel (0)
|
|
* - MCPWM_INTFLAG_CAP0: Capture interrupt for channel (0)
|
|
* - MCPWM_INTFLAG_LIM1: Limit interrupt for channel (1)
|
|
* - MCPWM_INTFLAG_MAT1: Match interrupt for channel (1)
|
|
* - MCPWM_INTFLAG_CAP1: Capture interrupt for channel (1)
|
|
* - MCPWM_INTFLAG_LIM2: Limit interrupt for channel (2)
|
|
* - MCPWM_INTFLAG_MAT2: Match interrupt for channel (2)
|
|
* - MCPWM_INTFLAG_CAP2: Capture interrupt for channel (2)
|
|
* - MCPWM_INTFLAG_ABORT: Fast abort interrupt
|
|
* @return None
|
|
**********************************************************************/
|
|
FlagStatus MCPWM_GetIntStatus(LPC_MCPWM_TypeDef *MCPWMx, uint32_t ulIntType)
|
|
{
|
|
return ((MCPWMx->MCINTFLAG & ulIntType) ? SET : RESET);
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|
}
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|
|
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/**
|
|
* @}
|
|
*/
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|
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#endif /* _MCPWM */
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|
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/**
|
|
* @}
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|
*/
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/* --------------------------------- End Of File ------------------------------ */
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