693 lines
29 KiB
C
693 lines
29 KiB
C
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/*
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* Copyright (c) 2015, Freescale Semiconductor, Inc.
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* Copyright 2016-2017 NXP
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* o Redistributions of source code must retain the above copyright notice, this list
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* of conditions and the following disclaimer.
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*
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* o Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or
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* other materials provided with the distribution.
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*
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* o Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _FSL_PWM_H_
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#define _FSL_PWM_H_
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#include "fsl_common.h"
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/*!
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* @addtogroup pwm_driver
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* @{
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*/
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/*******************************************************************************
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* Definitions
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******************************************************************************/
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/*! @name Driver version */
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/*@{*/
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#define FSL_PWM_DRIVER_VERSION (MAKE_VERSION(2, 0, 0)) /*!< Version 2.0.0 */
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/*@}*/
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/*! Number of bits per submodule for software output control */
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#define PWM_SUBMODULE_SWCONTROL_WIDTH 2
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/*! @brief List of PWM submodules */
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typedef enum _pwm_submodule
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{
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kPWM_Module_0 = 0U, /*!< Submodule 0 */
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kPWM_Module_1, /*!< Submodule 1 */
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kPWM_Module_2, /*!< Submodule 2 */
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kPWM_Module_3 /*!< Submodule 3 */
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} pwm_submodule_t;
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/*! @brief List of PWM channels in each module */
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typedef enum _pwm_channels
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{
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kPWM_PwmB = 0U,
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kPWM_PwmA,
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kPWM_PwmX
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} pwm_channels_t;
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/*! @brief List of PWM value registers */
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typedef enum _pwm_value_register
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{
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kPWM_ValueRegister_0 = 0U, /*!< PWM Value0 register */
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kPWM_ValueRegister_1, /*!< PWM Value1 register */
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kPWM_ValueRegister_2, /*!< PWM Value2 register */
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kPWM_ValueRegister_3, /*!< PWM Value3 register */
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kPWM_ValueRegister_4, /*!< PWM Value4 register */
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kPWM_ValueRegister_5 /*!< PWM Value5 register */
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} pwm_value_register_t;
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/*! @brief PWM clock source selection.*/
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typedef enum _pwm_clock_source
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{
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kPWM_BusClock = 0U, /*!< The IPBus clock is used as the clock */
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kPWM_ExternalClock, /*!< EXT_CLK is used as the clock */
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kPWM_Submodule0Clock /*!< Clock of the submodule 0 (AUX_CLK) is used as the source clock */
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} pwm_clock_source_t;
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/*! @brief PWM prescaler factor selection for clock source*/
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typedef enum _pwm_clock_prescale
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{
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kPWM_Prescale_Divide_1 = 0U, /*!< PWM clock frequency = fclk/1 */
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kPWM_Prescale_Divide_2, /*!< PWM clock frequency = fclk/2 */
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kPWM_Prescale_Divide_4, /*!< PWM clock frequency = fclk/4 */
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kPWM_Prescale_Divide_8, /*!< PWM clock frequency = fclk/8 */
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kPWM_Prescale_Divide_16, /*!< PWM clock frequency = fclk/16 */
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kPWM_Prescale_Divide_32, /*!< PWM clock frequency = fclk/32 */
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kPWM_Prescale_Divide_64, /*!< PWM clock frequency = fclk/64 */
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kPWM_Prescale_Divide_128 /*!< PWM clock frequency = fclk/128 */
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} pwm_clock_prescale_t;
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/*! @brief Options that can trigger a PWM FORCE_OUT */
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typedef enum _pwm_force_output_trigger
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{
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kPWM_Force_Local = 0U, /*!< The local force signal, CTRL2[FORCE], from the submodule is used to force updates */
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kPWM_Force_Master, /*!< The master force signal from submodule 0 is used to force updates */
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kPWM_Force_LocalReload, /*!< The local reload signal from this submodule is used to force updates without regard to
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the state of LDOK */
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kPWM_Force_MasterReload, /*!< The master reload signal from submodule 0 is used to force updates if LDOK is set */
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kPWM_Force_LocalSync, /*!< The local sync signal from this submodule is used to force updates */
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kPWM_Force_MasterSync, /*!< The master sync signal from submodule0 is used to force updates */
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kPWM_Force_External, /*!< The external force signal, EXT_FORCE, from outside the PWM module causes updates */
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kPWM_Force_ExternalSync /*!< The external sync signal, EXT_SYNC, from outside the PWM module causes updates */
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} pwm_force_output_trigger_t;
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/*! @brief PWM counter initialization options */
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typedef enum _pwm_init_source
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{
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kPWM_Initialize_LocalSync = 0U, /*!< Local sync causes initialization */
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kPWM_Initialize_MasterReload, /*!< Master reload from submodule 0 causes initialization */
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kPWM_Initialize_MasterSync, /*!< Master sync from submodule 0 causes initialization */
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kPWM_Initialize_ExtSync /*!< EXT_SYNC causes initialization */
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} pwm_init_source_t;
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/*! @brief PWM load frequency selection */
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typedef enum _pwm_load_frequency
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{
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kPWM_LoadEveryOportunity = 0U, /*!< Every PWM opportunity */
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kPWM_LoadEvery2Oportunity, /*!< Every 2 PWM opportunities */
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kPWM_LoadEvery3Oportunity, /*!< Every 3 PWM opportunities */
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kPWM_LoadEvery4Oportunity, /*!< Every 4 PWM opportunities */
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kPWM_LoadEvery5Oportunity, /*!< Every 5 PWM opportunities */
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kPWM_LoadEvery6Oportunity, /*!< Every 6 PWM opportunities */
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kPWM_LoadEvery7Oportunity, /*!< Every 7 PWM opportunities */
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kPWM_LoadEvery8Oportunity, /*!< Every 8 PWM opportunities */
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kPWM_LoadEvery9Oportunity, /*!< Every 9 PWM opportunities */
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kPWM_LoadEvery10Oportunity, /*!< Every 10 PWM opportunities */
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kPWM_LoadEvery11Oportunity, /*!< Every 11 PWM opportunities */
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kPWM_LoadEvery12Oportunity, /*!< Every 12 PWM opportunities */
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kPWM_LoadEvery13Oportunity, /*!< Every 13 PWM opportunities */
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kPWM_LoadEvery14Oportunity, /*!< Every 14 PWM opportunities */
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kPWM_LoadEvery15Oportunity, /*!< Every 15 PWM opportunities */
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kPWM_LoadEvery16Oportunity /*!< Every 16 PWM opportunities */
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} pwm_load_frequency_t;
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/*! @brief List of PWM fault selections */
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typedef enum _pwm_fault_input
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{
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kPWM_Fault_0 = 0U, /*!< Fault 0 input pin */
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kPWM_Fault_1, /*!< Fault 1 input pin */
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kPWM_Fault_2, /*!< Fault 2 input pin */
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kPWM_Fault_3 /*!< Fault 3 input pin */
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} pwm_fault_input_t;
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/*! @brief PWM capture edge select */
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typedef enum _pwm_input_capture_edge
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{
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kPWM_Disable = 0U, /*!< Disabled */
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kPWM_FallingEdge, /*!< Capture on falling edge only */
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kPWM_RisingEdge, /*!< Capture on rising edge only */
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kPWM_RiseAndFallEdge /*!< Capture on rising or falling edge */
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} pwm_input_capture_edge_t;
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/*! @brief PWM output options when a FORCE_OUT signal is asserted */
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typedef enum _pwm_force_signal
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{
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kPWM_UsePwm = 0U, /*!< Generated PWM signal is used by the deadtime logic.*/
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kPWM_InvertedPwm, /*!< Inverted PWM signal is used by the deadtime logic.*/
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kPWM_SoftwareControl, /*!< Software controlled value is used by the deadtime logic. */
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kPWM_UseExternal /*!< PWM_EXTA signal is used by the deadtime logic. */
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} pwm_force_signal_t;
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/*! @brief Options available for the PWM A & B pair operation */
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typedef enum _pwm_chnl_pair_operation
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{
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kPWM_Independent = 0U, /*!< PWM A & PWM B operate as 2 independent channels */
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kPWM_ComplementaryPwmA, /*!< PWM A & PWM B are complementary channels, PWM A generates the signal */
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kPWM_ComplementaryPwmB /*!< PWM A & PWM B are complementary channels, PWM B generates the signal */
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} pwm_chnl_pair_operation_t;
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/*! @brief Options available on how to load the buffered-registers with new values */
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typedef enum _pwm_register_reload
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{
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kPWM_ReloadImmediate = 0U, /*!< Buffered-registers get loaded with new values as soon as LDOK bit is set */
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kPWM_ReloadPwmHalfCycle, /*!< Registers loaded on a PWM half cycle */
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kPWM_ReloadPwmFullCycle, /*!< Registers loaded on a PWM full cycle */
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kPWM_ReloadPwmHalfAndFullCycle /*!< Registers loaded on a PWM half & full cycle */
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} pwm_register_reload_t;
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/*! @brief Options available on how to re-enable the PWM output when recovering from a fault */
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typedef enum _pwm_fault_recovery_mode
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{
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kPWM_NoRecovery = 0U, /*!< PWM output will stay inactive */
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kPWM_RecoverHalfCycle, /*!< PWM output re-enabled at the first half cycle */
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kPWM_RecoverFullCycle, /*!< PWM output re-enabled at the first full cycle */
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kPWM_RecoverHalfAndFullCycle /*!< PWM output re-enabled at the first half or full cycle */
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} pwm_fault_recovery_mode_t;
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/*! @brief List of PWM interrupt options */
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typedef enum _pwm_interrupt_enable
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{
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kPWM_CompareVal0InterruptEnable = (1U << 0), /*!< PWM VAL0 compare interrupt */
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kPWM_CompareVal1InterruptEnable = (1U << 1), /*!< PWM VAL1 compare interrupt */
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kPWM_CompareVal2InterruptEnable = (1U << 2), /*!< PWM VAL2 compare interrupt */
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kPWM_CompareVal3InterruptEnable = (1U << 3), /*!< PWM VAL3 compare interrupt */
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kPWM_CompareVal4InterruptEnable = (1U << 4), /*!< PWM VAL4 compare interrupt */
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kPWM_CompareVal5InterruptEnable = (1U << 5), /*!< PWM VAL5 compare interrupt */
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kPWM_CaptureX0InterruptEnable = (1U << 6), /*!< PWM capture X0 interrupt */
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kPWM_CaptureX1InterruptEnable = (1U << 7), /*!< PWM capture X1 interrupt */
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kPWM_CaptureB0InterruptEnable = (1U << 8), /*!< PWM capture B0 interrupt */
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kPWM_CaptureB1InterruptEnable = (1U << 9), /*!< PWM capture B1 interrupt */
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kPWM_CaptureA0InterruptEnable = (1U << 10), /*!< PWM capture A0 interrupt */
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kPWM_CaptureA1InterruptEnable = (1U << 11), /*!< PWM capture A1 interrupt */
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kPWM_ReloadInterruptEnable = (1U << 12), /*!< PWM reload interrupt */
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kPWM_ReloadErrorInterruptEnable = (1U << 13), /*!< PWM reload error interrupt */
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kPWM_Fault0InterruptEnable = (1U << 16), /*!< PWM fault 0 interrupt */
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kPWM_Fault1InterruptEnable = (1U << 17), /*!< PWM fault 1 interrupt */
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kPWM_Fault2InterruptEnable = (1U << 18), /*!< PWM fault 2 interrupt */
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kPWM_Fault3InterruptEnable = (1U << 19) /*!< PWM fault 3 interrupt */
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} pwm_interrupt_enable_t;
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/*! @brief List of PWM status flags */
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typedef enum _pwm_status_flags
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{
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kPWM_CompareVal0Flag = (1U << 0), /*!< PWM VAL0 compare flag */
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kPWM_CompareVal1Flag = (1U << 1), /*!< PWM VAL1 compare flag */
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kPWM_CompareVal2Flag = (1U << 2), /*!< PWM VAL2 compare flag */
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kPWM_CompareVal3Flag = (1U << 3), /*!< PWM VAL3 compare flag */
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kPWM_CompareVal4Flag = (1U << 4), /*!< PWM VAL4 compare flag */
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kPWM_CompareVal5Flag = (1U << 5), /*!< PWM VAL5 compare flag */
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kPWM_CaptureX0Flag = (1U << 6), /*!< PWM capture X0 flag */
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kPWM_CaptureX1Flag = (1U << 7), /*!< PWM capture X1 flag */
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kPWM_CaptureB0Flag = (1U << 8), /*!< PWM capture B0 flag */
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kPWM_CaptureB1Flag = (1U << 9), /*!< PWM capture B1 flag */
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kPWM_CaptureA0Flag = (1U << 10), /*!< PWM capture A0 flag */
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kPWM_CaptureA1Flag = (1U << 11), /*!< PWM capture A1 flag */
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kPWM_ReloadFlag = (1U << 12), /*!< PWM reload flag */
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kPWM_ReloadErrorFlag = (1U << 13), /*!< PWM reload error flag */
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kPWM_RegUpdatedFlag = (1U << 14), /*!< PWM registers updated flag */
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kPWM_Fault0Flag = (1U << 16), /*!< PWM fault 0 flag */
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kPWM_Fault1Flag = (1U << 17), /*!< PWM fault 1 flag */
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kPWM_Fault2Flag = (1U << 18), /*!< PWM fault 2 flag */
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kPWM_Fault3Flag = (1U << 19) /*!< PWM fault 3 flag */
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} pwm_status_flags_t;
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/*! @brief PWM operation mode */
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typedef enum _pwm_mode
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{
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kPWM_SignedCenterAligned = 0U, /*!< Signed center-aligned */
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kPWM_CenterAligned, /*!< Unsigned cente-aligned */
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kPWM_SignedEdgeAligned, /*!< Signed edge-aligned */
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kPWM_EdgeAligned /*!< Unsigned edge-aligned */
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} pwm_mode_t;
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/*! @brief PWM output pulse mode, high-true or low-true */
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typedef enum _pwm_level_select
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{
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kPWM_HighTrue = 0U, /*!< High level represents "on" or "active" state */
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kPWM_LowTrue /*!< Low level represents "on" or "active" state */
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} pwm_level_select_t;
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/*! @brief PWM reload source select */
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typedef enum _pwm_reload_source_select
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{
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kPWM_LocalReload = 0U, /*!< The local reload signal is used to reload registers */
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kPWM_MasterReload /*!< The master reload signal (from submodule 0) is used to reload */
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} pwm_reload_source_select_t;
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/*! @brief PWM fault clearing options */
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typedef enum _pwm_fault_clear
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{
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kPWM_Automatic = 0U, /*!< Automatic fault clearing */
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kPWM_ManualNormal, /*!< Manual fault clearing with no fault safety mode */
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kPWM_ManualSafety /*!< Manual fault clearing with fault safety mode */
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} pwm_fault_clear_t;
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/*! @brief Options for submodule master control operation */
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typedef enum _pwm_module_control
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{
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kPWM_Control_Module_0 = (1U << 0), /*!< Control submodule 0's start/stop,buffer reload operation */
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kPWM_Control_Module_1 = (1U << 1), /*!< Control submodule 1's start/stop,buffer reload operation */
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kPWM_Control_Module_2 = (1U << 2), /*!< Control submodule 2's start/stop,buffer reload operation */
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kPWM_Control_Module_3 = (1U << 3) /*!< Control submodule 3's start/stop,buffer reload operation */
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} pwm_module_control_t;
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/*! @brief Structure for the user to define the PWM signal characteristics */
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typedef struct _pwm_signal_param
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{
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pwm_channels_t pwmChannel; /*!< PWM channel being configured; PWM A or PWM B */
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uint8_t dutyCyclePercent; /*!< PWM pulse width, value should be between 0 to 100
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0=inactive signal(0% duty cycle)...
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100=always active signal (100% duty cycle)*/
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pwm_level_select_t level; /*!< PWM output active level select */
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uint16_t deadtimeValue; /*!< The deadtime value; only used if channel pair is operating in complementary mode */
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} pwm_signal_param_t;
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/*!
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* @brief PWM config structure
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*
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* This structure holds the configuration settings for the PWM peripheral. To initialize this
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* structure to reasonable defaults, call the PWM_GetDefaultConfig() function and pass a
|
||
|
|
* pointer to your config structure instance.
|
||
|
|
*
|
||
|
|
* The config struct can be made const so it resides in flash
|
||
|
|
*/
|
||
|
|
typedef struct _pwm_config
|
||
|
|
{
|
||
|
|
bool enableDebugMode; /*!< true: PWM continues to run in debug mode;
|
||
|
|
false: PWM is paused in debug mode */
|
||
|
|
bool enableWait; /*!< true: PWM continues to run in WAIT mode;
|
||
|
|
false: PWM is paused in WAIT mode */
|
||
|
|
uint8_t faultFilterCount; /*!< Fault filter count */
|
||
|
|
uint8_t faultFilterPeriod; /*!< Fault filter period;value of 0 will bypass the filter */
|
||
|
|
pwm_init_source_t initializationControl; /*!< Option to initialize the counter */
|
||
|
|
pwm_clock_source_t clockSource; /*!< Clock source for the counter */
|
||
|
|
pwm_clock_prescale_t prescale; /*!< Pre-scaler to divide down the clock */
|
||
|
|
pwm_chnl_pair_operation_t pairOperation; /*!< Channel pair in indepedent or complementary mode */
|
||
|
|
pwm_register_reload_t reloadLogic; /*!< PWM Reload logic setup */
|
||
|
|
pwm_reload_source_select_t reloadSelect; /*!< Reload source select */
|
||
|
|
pwm_load_frequency_t reloadFrequency; /*!< Specifies when to reload, used when user's choice
|
||
|
|
is not immediate reload */
|
||
|
|
pwm_force_output_trigger_t forceTrigger; /*!< Specify which signal will trigger a FORCE_OUT */
|
||
|
|
} pwm_config_t;
|
||
|
|
|
||
|
|
/*! @brief Structure is used to hold the parameters to configure a PWM fault */
|
||
|
|
typedef struct _pwm_fault_param
|
||
|
|
{
|
||
|
|
pwm_fault_clear_t faultClearingMode; /*!< Fault clearing mode to use */
|
||
|
|
bool faultLevel; /*!< true: Logic 1 indicates fault;
|
||
|
|
false: Logic 0 indicates fault */
|
||
|
|
bool enableCombinationalPath; /*!< true: Combinational Path from fault input is enabled;
|
||
|
|
false: No combination path is available */
|
||
|
|
pwm_fault_recovery_mode_t recoverMode; /*!< Specify when to re-enable the PWM output */
|
||
|
|
} pwm_fault_param_t;
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Structure is used to hold parameters to configure the capture capability of a signal pin
|
||
|
|
*/
|
||
|
|
typedef struct _pwm_input_capture_param
|
||
|
|
{
|
||
|
|
bool captureInputSel; /*!< true: Use the edge counter signal as source
|
||
|
|
false: Use the raw input signal from the pin as source */
|
||
|
|
uint8_t edgeCompareValue; /*!< Compare value, used only if edge counter is used as source */
|
||
|
|
pwm_input_capture_edge_t edge0; /*!< Specify which edge causes a capture for input circuitry 0 */
|
||
|
|
pwm_input_capture_edge_t edge1; /*!< Specify which edge causes a capture for input circuitry 1 */
|
||
|
|
bool enableOneShotCapture; /*!< true: Use one-shot capture mode;
|
||
|
|
false: Use free-running capture mode */
|
||
|
|
uint8_t fifoWatermark; /*!< Watermark level for capture FIFO. The capture flags in
|
||
|
|
the status register will set if the word count in the FIFO
|
||
|
|
is greater than this watermark level */
|
||
|
|
} pwm_input_capture_param_t;
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
* API
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @name Initialization and deinitialization
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Ungates the PWM submodule clock and configures the peripheral for basic operation.
|
||
|
|
*
|
||
|
|
* @note This API should be called at the beginning of the application using the PWM driver.
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param subModule PWM submodule to configure
|
||
|
|
* @param config Pointer to user's PWM config structure.
|
||
|
|
*
|
||
|
|
* @return kStatus_Success means success; else failed.
|
||
|
|
*/
|
||
|
|
status_t PWM_Init(PWM_Type *base, pwm_submodule_t subModule, const pwm_config_t *config);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Gate the PWM submodule clock
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param subModule PWM submodule to deinitialize
|
||
|
|
*/
|
||
|
|
void PWM_Deinit(PWM_Type *base, pwm_submodule_t subModule);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Fill in the PWM config struct with the default settings
|
||
|
|
*
|
||
|
|
* The default values are:
|
||
|
|
* @code
|
||
|
|
* config->enableDebugMode = false;
|
||
|
|
* config->enableWait = false;
|
||
|
|
* config->reloadSelect = kPWM_LocalReload;
|
||
|
|
* config->faultFilterCount = 0;
|
||
|
|
* config->faultFilterPeriod = 0;
|
||
|
|
* config->clockSource = kPWM_BusClock;
|
||
|
|
* config->prescale = kPWM_Prescale_Divide_1;
|
||
|
|
* config->initializationControl = kPWM_Initialize_LocalSync;
|
||
|
|
* config->forceTrigger = kPWM_Force_Local;
|
||
|
|
* config->reloadFrequency = kPWM_LoadEveryOportunity;
|
||
|
|
* config->reloadLogic = kPWM_ReloadImmediate;
|
||
|
|
* config->pairOperation = kPWM_Independent;
|
||
|
|
* @endcode
|
||
|
|
* @param config Pointer to user's PWM config structure.
|
||
|
|
*/
|
||
|
|
void PWM_GetDefaultConfig(pwm_config_t *config);
|
||
|
|
|
||
|
|
/*! @}*/
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @name Module PWM output
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
/*!
|
||
|
|
* @brief Sets up the PWM signals for a PWM submodule.
|
||
|
|
*
|
||
|
|
* The function initializes the submodule according to the parameters passed in by the user. The function
|
||
|
|
* also sets up the value compare registers to match the PWM signal requirements.
|
||
|
|
* If the dead time insertion logic is enabled, the pulse period is reduced by the
|
||
|
|
* dead time period specified by the user.
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param subModule PWM submodule to configure
|
||
|
|
* @param chnlParams Array of PWM channel parameters to configure the channel(s)
|
||
|
|
* @param numOfChnls Number of channels to configure, this should be the size of the array passed in.
|
||
|
|
* Array size should not be more than 2 as each submodule has 2 pins to output PWM
|
||
|
|
* @param mode PWM operation mode, options available in enumeration ::pwm_mode_t
|
||
|
|
* @param pwmFreq_Hz PWM signal frequency in Hz
|
||
|
|
* @param srcClock_Hz PWM main counter clock in Hz.
|
||
|
|
*
|
||
|
|
* @return Returns kStatusFail if there was error setting up the signal; kStatusSuccess otherwise
|
||
|
|
*/
|
||
|
|
status_t PWM_SetupPwm(PWM_Type *base,
|
||
|
|
pwm_submodule_t subModule,
|
||
|
|
const pwm_signal_param_t *chnlParams,
|
||
|
|
uint8_t numOfChnls,
|
||
|
|
pwm_mode_t mode,
|
||
|
|
uint32_t pwmFreq_Hz,
|
||
|
|
uint32_t srcClock_Hz);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Updates the PWM signal's dutycycle.
|
||
|
|
*
|
||
|
|
* The function updates the PWM dutycyle to the new value that is passed in.
|
||
|
|
* If the dead time insertion logic is enabled then the pulse period is reduced by the
|
||
|
|
* dead time period specified by the user.
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param subModule PWM submodule to configure
|
||
|
|
* @param pwmSignal Signal (PWM A or PWM B) to update
|
||
|
|
* @param currPwmMode The current PWM mode set during PWM setup
|
||
|
|
* @param dutyCyclePercent New PWM pulse width, value should be between 0 to 100
|
||
|
|
* 0=inactive signal(0% duty cycle)...
|
||
|
|
* 100=active signal (100% duty cycle)
|
||
|
|
*/
|
||
|
|
void PWM_UpdatePwmDutycycle(PWM_Type *base,
|
||
|
|
pwm_submodule_t subModule,
|
||
|
|
pwm_channels_t pwmSignal,
|
||
|
|
pwm_mode_t currPwmMode,
|
||
|
|
uint8_t dutyCyclePercent);
|
||
|
|
|
||
|
|
/*! @}*/
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Sets up the PWM input capture
|
||
|
|
*
|
||
|
|
* Each PWM submodule has 3 pins that can be configured for use as input capture pins. This function
|
||
|
|
* sets up the capture parameters for each pin and enables the pin for input capture operation.
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param subModule PWM submodule to configure
|
||
|
|
* @param pwmChannel Channel in the submodule to setup
|
||
|
|
* @param inputCaptureParams Parameters passed in to set up the input pin
|
||
|
|
*/
|
||
|
|
void PWM_SetupInputCapture(PWM_Type *base,
|
||
|
|
pwm_submodule_t subModule,
|
||
|
|
pwm_channels_t pwmChannel,
|
||
|
|
const pwm_input_capture_param_t *inputCaptureParams);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Sets up the PWM fault protection.
|
||
|
|
*
|
||
|
|
* PWM has 4 fault inputs.
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param faultNum PWM fault to configure.
|
||
|
|
* @param faultParams Pointer to the PWM fault config structure
|
||
|
|
*/
|
||
|
|
void PWM_SetupFaults(PWM_Type *base, pwm_fault_input_t faultNum, const pwm_fault_param_t *faultParams);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Selects the signal to output on a PWM pin when a FORCE_OUT signal is asserted.
|
||
|
|
*
|
||
|
|
* The user specifies which channel to configure by supplying the submodule number and whether
|
||
|
|
* to modify PWM A or PWM B within that submodule.
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param subModule PWM submodule to configure
|
||
|
|
* @param pwmChannel Channel to configure
|
||
|
|
* @param mode Signal to output when a FORCE_OUT is triggered
|
||
|
|
*/
|
||
|
|
void PWM_SetupForceSignal(PWM_Type *base,
|
||
|
|
pwm_submodule_t subModule,
|
||
|
|
pwm_channels_t pwmChannel,
|
||
|
|
pwm_force_signal_t mode);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @name Interrupts Interface
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Enables the selected PWM interrupts
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param subModule PWM submodule to configure
|
||
|
|
* @param mask The interrupts to enable. This is a logical OR of members of the
|
||
|
|
* enumeration ::pwm_interrupt_enable_t
|
||
|
|
*/
|
||
|
|
void PWM_EnableInterrupts(PWM_Type *base, pwm_submodule_t subModule, uint32_t mask);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Disables the selected PWM interrupts
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param subModule PWM submodule to configure
|
||
|
|
* @param mask The interrupts to enable. This is a logical OR of members of the
|
||
|
|
* enumeration ::pwm_interrupt_enable_t
|
||
|
|
*/
|
||
|
|
void PWM_DisableInterrupts(PWM_Type *base, pwm_submodule_t subModule, uint32_t mask);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Gets the enabled PWM interrupts
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param subModule PWM submodule to configure
|
||
|
|
*
|
||
|
|
* @return The enabled interrupts. This is the logical OR of members of the
|
||
|
|
* enumeration ::pwm_interrupt_enable_t
|
||
|
|
*/
|
||
|
|
uint32_t PWM_GetEnabledInterrupts(PWM_Type *base, pwm_submodule_t subModule);
|
||
|
|
|
||
|
|
/*! @}*/
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @name Status Interface
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Gets the PWM status flags
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param subModule PWM submodule to configure
|
||
|
|
*
|
||
|
|
* @return The status flags. This is the logical OR of members of the
|
||
|
|
* enumeration ::pwm_status_flags_t
|
||
|
|
*/
|
||
|
|
uint32_t PWM_GetStatusFlags(PWM_Type *base, pwm_submodule_t subModule);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Clears the PWM status flags
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param subModule PWM submodule to configure
|
||
|
|
* @param mask The status flags to clear. This is a logical OR of members of the
|
||
|
|
* enumeration ::pwm_status_flags_t
|
||
|
|
*/
|
||
|
|
void PWM_ClearStatusFlags(PWM_Type *base, pwm_submodule_t subModule, uint32_t mask);
|
||
|
|
|
||
|
|
/*! @}*/
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @name Timer Start and Stop
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Starts the PWM counter for a single or multiple submodules.
|
||
|
|
*
|
||
|
|
* Sets the Run bit which enables the clocks to the PWM submodule. This function can start multiple
|
||
|
|
* submodules at the same time.
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param subModulesToStart PWM submodules to start. This is a logical OR of members of the
|
||
|
|
* enumeration ::pwm_module_control_t
|
||
|
|
*/
|
||
|
|
static inline void PWM_StartTimer(PWM_Type *base, uint8_t subModulesToStart)
|
||
|
|
{
|
||
|
|
base->MCTRL |= PWM_MCTRL_RUN(subModulesToStart);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Stops the PWM counter for a single or multiple submodules.
|
||
|
|
*
|
||
|
|
* Clears the Run bit which resets the submodule's counter. This function can stop multiple
|
||
|
|
* submodules at the same time.
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param subModulesToStop PWM submodules to stop. This is a logical OR of members of the
|
||
|
|
* enumeration ::pwm_module_control_t
|
||
|
|
*/
|
||
|
|
static inline void PWM_StopTimer(PWM_Type *base, uint8_t subModulesToStop)
|
||
|
|
{
|
||
|
|
base->MCTRL &= ~(PWM_MCTRL_RUN(subModulesToStop));
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! @}*/
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Enables or disables the PWM output trigger.
|
||
|
|
*
|
||
|
|
* This function allows the user to enable or disable the PWM trigger. The PWM has 2 triggers. Trigger 0
|
||
|
|
* is activated when the counter matches VAL 0, VAL 2, or VAL 4 register. Trigger 1 is activated
|
||
|
|
* when the counter matches VAL 1, VAL 3, or VAL 5 register.
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param subModule PWM submodule to configure
|
||
|
|
* @param valueRegister Value register that will activate the trigger
|
||
|
|
* @param activate true: Enable the trigger; false: Disable the trigger
|
||
|
|
*/
|
||
|
|
static inline void PWM_OutputTriggerEnable(PWM_Type *base,
|
||
|
|
pwm_submodule_t subModule,
|
||
|
|
pwm_value_register_t valueRegister,
|
||
|
|
bool activate)
|
||
|
|
{
|
||
|
|
if (activate)
|
||
|
|
{
|
||
|
|
base->SM[subModule].TCTRL |= (1U << valueRegister);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
base->SM[subModule].TCTRL &= ~(1U << valueRegister);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Sets the software control output for a pin to high or low.
|
||
|
|
*
|
||
|
|
* The user specifies which channel to modify by supplying the submodule number and whether
|
||
|
|
* to modify PWM A or PWM B within that submodule.
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param subModule PWM submodule to configure
|
||
|
|
* @param pwmChannel Channel to configure
|
||
|
|
* @param value true: Supply a logic 1, false: Supply a logic 0.
|
||
|
|
*/
|
||
|
|
static inline void PWM_SetupSwCtrlOut(PWM_Type *base, pwm_submodule_t subModule, pwm_channels_t pwmChannel, bool value)
|
||
|
|
{
|
||
|
|
if (value)
|
||
|
|
{
|
||
|
|
base->SWCOUT |= (1U << ((subModule * PWM_SUBMODULE_SWCONTROL_WIDTH) + pwmChannel));
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
base->SWCOUT &= ~(1U << ((subModule * PWM_SUBMODULE_SWCONTROL_WIDTH) + pwmChannel));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Sets or clears the PWM LDOK bit on a single or multiple submodules
|
||
|
|
*
|
||
|
|
* Set LDOK bit to load buffered values into CTRL[PRSC] and the INIT, FRACVAL and VAL registers. The
|
||
|
|
* values are loaded immediately if kPWM_ReloadImmediate option was choosen during config. Else the
|
||
|
|
* values are loaded at the next PWM reload point.
|
||
|
|
* This function can issue the load command to multiple submodules at the same time.
|
||
|
|
*
|
||
|
|
* @param base PWM peripheral base address
|
||
|
|
* @param subModulesToUpdate PWM submodules to update with buffered values. This is a logical OR of
|
||
|
|
* members of the enumeration ::pwm_module_control_t
|
||
|
|
* @param value true: Set LDOK bit for the submodule list; false: Clear LDOK bit
|
||
|
|
*/
|
||
|
|
static inline void PWM_SetPwmLdok(PWM_Type *base, uint8_t subModulesToUpdate, bool value)
|
||
|
|
{
|
||
|
|
if (value)
|
||
|
|
{
|
||
|
|
base->MCTRL |= PWM_MCTRL_LDOK(subModulesToUpdate);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
base->MCTRL |= PWM_MCTRL_CLDOK(subModulesToUpdate);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*! @}*/
|
||
|
|
|
||
|
|
#endif /* _FSL_PWM_H_ */
|