120 lines
3.3 KiB
C
120 lines
3.3 KiB
C
/**
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* @file pwms.h
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* @brief Header file for PWMs module.
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*
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* This file contains the declarations and documentation for the PWMs module.
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*
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* @author xxx
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* @date 2023-12-27 14:44:03
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* @version 1.0
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* @copyright Copyright (c) 2024 by xxx, All Rights Reserved.
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*/
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#ifndef __PWMS_H__
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#define __PWMS_H__
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#include "lib.h"
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/**
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* @brief Starts the PWM for a specific channel
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* @param TIMx: TIM instance
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* @param CHx: Channel to be started
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* @retval None
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*/
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#define PWM_START(TIMx, CHx) \
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do \
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{ \
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LL_TIM_EnableCounter(TIMx); \
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LL_TIM_CC_EnableChannel(TIMx, CHx); \
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} while (__LINE__ == -1)
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/**
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* @brief Stops the PWM for a specific channel
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* @param TIMx: TIM instance
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* @param CHx: Channel to be stopped
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* @retval None
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*/
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#define PWM_STOP(TIMx, CHx) \
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do \
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{ \
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LL_TIM_DisableCounter(TIMx); \
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LL_TIM_CC_DisableChannel(TIMx, CHx); \
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} while (__LINE__ == -1)
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#define PWM_GET_ARR(TIMx) LL_TIM_GetAutoReload(TIMx)
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#define PWM_GET_PSC(TIMx) LL_TIM_GetPrescaler(TIMx)
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/**
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* @brief Sets the PWM frequency
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* @param TIMx: TIM instance
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* @param CHx: Channel to be set
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* @param COMPARE: Compare value
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* @retval None
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*/
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static inline void PWM_SET_COMPARE(TIM_TypeDef *TIMx, uint32_t CHx, uint16_t COMPARE)
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{
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switch (CHx)
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{
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case LL_TIM_CHANNEL_CH1:
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LL_TIM_OC_SetCompareCH1(TIMx, COMPARE);
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break;
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case LL_TIM_CHANNEL_CH2:
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LL_TIM_OC_SetCompareCH2(TIMx, COMPARE);
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break;
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case LL_TIM_CHANNEL_CH3:
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LL_TIM_OC_SetCompareCH3(TIMx, COMPARE);
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break;
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case LL_TIM_CHANNEL_CH4:
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LL_TIM_OC_SetCompareCH4(TIMx, COMPARE);
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break;
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default:
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break;
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}
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}
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/**
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* @brief 设置PWM占空比
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*
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* 设置指定定时器TIMx的指定通道CHx的PWM占空比。
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*
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* @param TIMx 定时器类型，例如TIM1、TIM2等
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* @param CHx 通道号，例如TIM_CHANNEL_1、TIM_CHANNEL_2等
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* @param DUTY 占空比，范围在0到100之间
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*/
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static inline void PWM_SET_DUTY(TIM_TypeDef *TIMx, uint32_t CHx, uint16_t DUTY)
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{
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PWM_SET_COMPARE(TIMx, CHx, DUTY * LL_TIM_GetAutoReload(TIMx) / 100);
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}
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// 获取当前频率
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static inline uint32_t PWM_GET_FREQ(TIM_TypeDef *TIMx)
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{
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return SystemCoreClock / (LL_TIM_GetPrescaler(TIMx) + 1) / (LL_TIM_GetAutoReload(TIMx) + 1);
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}
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/**
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* @brief 获取指定通道的PWM比较值
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*
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* 根据给定的定时器指针和通道编号，获取该通道的PWM比较值。
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*
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* @param TIMx 定时器指针，指向一个TIM_TypeDef结构体
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* @param CHx 通道编号，取值范围为LL_TIM_CHANNEL_CH1到LL_TIM_CHANNEL_CH4
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*
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* @return 返回一个uint16_t类型的值，表示指定通道的PWM比较值。如果通道编号无效，则返回0。
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*/
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static inline uint16_t PWM_GET_COMPARE(TIM_TypeDef *TIMx, uint32_t CHx)
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{
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switch (CHx)
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{
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case LL_TIM_CHANNEL_CH1:
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return LL_TIM_OC_GetCompareCH1(TIMx);
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case LL_TIM_CHANNEL_CH2:
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return LL_TIM_OC_GetCompareCH2(TIMx);
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case LL_TIM_CHANNEL_CH3:
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return LL_TIM_OC_GetCompareCH3(TIMx);
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case LL_TIM_CHANNEL_CH4:
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return LL_TIM_OC_GetCompareCH4(TIMx);
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default:
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return 0;
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}
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}
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#endif ///< __PWMS_H__
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