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https://github.com/jialexd/sdk-ameba-v4.0c_180328.git
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135 lines
4 KiB
C
Executable file
135 lines
4 KiB
C
Executable file
/** mbed Microcontroller Library
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******************************************************************************
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* @file pwmout_api.h
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* @author
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* @version V1.0.0
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* @brief This file provides mbed pwm API
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2006-2013 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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******************************************************************************
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*/
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#ifndef MBED_PWMOUT_API_H
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#define MBED_PWMOUT_API_H
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#include "device.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** @addtogroup pwm PWM
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* @ingroup hal
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* @brief pwm functions
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* @{
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*/
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///@name Ameba Common
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///@{
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typedef struct pwmout_s pwmout_t;
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/**
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* @brief Initializes the PWM function/registers of the specified pin with default parameters.
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* @param obj: PWM object define in application software.
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* @param pin: the pinname of specified channel to be set.
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* @retval none
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* @note
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* - default period: 1638us
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* - default pulse width: 102us
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* - default duty cycle: 6.227%
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*/
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void pwmout_init(pwmout_t* obj, PinName pin);
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/**
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* @brief Deinitializes the PWM device of the specified channel.
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* @param obj: PWM object define in application software.
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* @retval none
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* @note If all channels are released, TIM5 will also be disabled.
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*/
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void pwmout_free(pwmout_t* obj);
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/**
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* @brief Set the duty cycle of the specified channel.
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* @param obj: PWM object define in application software.
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* @param percent: The duty cycle value to be set.
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* @retval none
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*/
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void pwmout_write(pwmout_t* obj, float percent);
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/**
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* @brief Get the duty cycle value of the specified channel.
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* @param obj: PWM object define in application software.
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* @retval : the duty cycle value of the specified channel.
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*/
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float pwmout_read(pwmout_t* obj);
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/**
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* @brief Set the period of the specified channel in seconds.
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* @param obj: PWM object define in application software.
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* @param seconds: The period value to be set in seconds.
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* @retval none
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*/
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void pwmout_period(pwmout_t* obj, float seconds);
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/**
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* @brief Set the period of the specified channel in millseconds.
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* @param obj: PWM object define in application software.
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* @param ms: The period value to be set in millseconds.
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* @retval none
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*/
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void pwmout_period_ms(pwmout_t* obj, int ms);
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/**
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* @brief Set the period of the specified channel in microseconds.
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* @param obj: PWM object define in application software.
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* @param us: The period value to be set in microseconds.
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* @retval none
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*/
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void pwmout_period_us(pwmout_t* obj, int us);
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/**
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* @brief Set the pulse width of the specified channel in seconds.
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* @param obj: PWM object define in application software.
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* @param seconds: The pulse width value to be set in seconds.
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* @retval none
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*/
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void pwmout_pulsewidth(pwmout_t* obj, float seconds);
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/**
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* @brief Set the pulse width of the specified channel in milliseconds.
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* @param obj: PWM object define in application software.
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* @param ms: The pulse width value to be set in milliseconds.
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* @retval none
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*/
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void pwmout_pulsewidth_ms(pwmout_t* obj, int ms);
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/**
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* @brief Set the pulse width of the specified channel in microseconds.
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* @param obj: PWM object define in application software.
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* @param us: The pulse width value to be set in microseconds.
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* @retval none
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*/
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void pwmout_pulsewidth_us(pwmout_t* obj, int us);
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///@}
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/*\@}*/
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#ifdef __cplusplus
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}
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#endif
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#endif
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