91 lines
2.3 KiB
C
91 lines
2.3 KiB
C
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/**
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* @file bsp_pwm.h
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* @author your name (you@domain.com)
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* @brief
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* @version 0.1
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* @date 2023-02-14
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*
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* @copyright Copyright (c) 2023
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*
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*/
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#ifndef BSP_PWM_H
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#define BSP_PWM_H
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#include "tim.h"
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#include "stdint.h"
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#include "stm32f4xx_hal_rcc.h"
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#include "stm32f407xx.h"
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#define PWM_DEVICE_CNT 16 // 最大支持的PWM实例数量
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/* pwm实例结构体 */
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typedef struct pwm_ins_temp
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{
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TIM_HandleTypeDef *htim; // TIM句柄
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uint32_t channel; // 通道
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uint32_t tclk; // 时钟频率
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float period; // 周期
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float dutyratio; // 占空比
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void (*callback)(struct pwm_ins_temp *); // DMA传输完成回调函数
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void *id; // 实例ID
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} PWMInstance;
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typedef struct
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{
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TIM_HandleTypeDef *htim; // TIM句柄
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uint32_t channel; // 通道
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float period; // 周期
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float dutyratio; // 占空比
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void (*callback)(PWMInstance*); // DMA传输完成回调函数
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void *id; // 实例ID
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} PWM_Init_Config_s;
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/**
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* @brief 注册一个pwm实例
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*
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* @param config 初始化配置
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* @return PWMInstance*
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*/
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PWMInstance *PWMRegister(PWM_Init_Config_s *config);
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/**
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* @brief 启动pwm
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*
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* @param pwm pwm实例
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*/
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void PWMStart(PWMInstance *pwm, unsigned int i);
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/**
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* @brief 设置pwm占空比
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*
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* @param pwm pwm实例
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* @param dutyratio 占空比 0~1
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*/
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void PWMSetDutyRatio(PWMInstance *pwm, float dutyratio);
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/**
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* @brief 停止pwm
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*
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* @param pwm pwm实例
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*/
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void PWMStop(PWMInstance *pwm);
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/**
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* @brief 设置pwm周期
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*
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* @param pwm pwm实例
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* @param period 周期 单位 s
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*/
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void PWMSetPeriod(PWMInstance *pwm, float period);
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/**
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* @brief 启动pwm dma传输
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*
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* @param pwm pwm实例
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* @param pData 数据首地址指针,注意数据的位数必须和CubeMX配置的DMA传输位数(字长)一致
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* @param Size 数据长度
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* @note 如果使用此函数,则需要在CubeMX中配置DMA传输位数为对应位数
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* 例如:使用16位数据,则需要配置DMA传输位数为16位(half word),配置错误会导致指针越界或数据错误
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*/
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void PWMStartDMA(PWMInstance *pwm, uint32_t *pData, uint32_t Size);
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#endif // BSP_PWM_H
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