#include "pwm.h"
#include "led.h"
#include "usart.h"
#include "arm_math.h"
void PWM1_Init(u32 arr,u32 psc,u8 choose)
{
//此部分需手动修改IO口设置
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
RCC_APB1PeriphClockCmd(PWM1_TIM_CLK,ENABLE); //TIM14时钟使能
RCC_AHB1PeriphClockCmd(PWM1_GPIO_CLK, ENABLE); //使能PORTF时钟
PWM1_GPIO_PIN_AF_TIM
GPIO_InitStructure.GPIO_Pin = PWM1_GPIO_PIN; //GPIOF9
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; //复用功能
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz; //速度100MHz
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; //推挽复用输出
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; //上拉
GPIO_Init(PWM1_GPIO_PORT,&GPIO_InitStructure); //初始化PF9
TIM_TimeBaseStructure.TIM_Prescaler=psc; //定时器分频
TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up; //向上计数模式
TIM_TimeBaseStructure.TIM_Period=arr; //自动重装载值
TIM_TimeBaseStructure.TIM_ClockDivision=TIM_CKD_DIV1;
TIM_TimeBaseInit(PWM1_TIM_USE,&TIM_TimeBaseStructure);//初始化定时器14
//初始化TIM14 Channel1 PWM模式
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //选择定时器模式:TIM脉冲宽度调制模式2
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //比较输出使能
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; //输出极性:TIM输出比较极性低
switch(choose)
{
case 1:
TIM_OC1Init(PWM1_TIM_USE, &TIM_OCInitStructure); //根据T指定的参数初始化外设TIM1 4OC1
TIM_OC1PreloadConfig(PWM1_TIM_USE, TIM_OCPreload_Enable); //使能TIM14在CCR1上的预装载寄存器
break;
case 2:
TIM_OC2Init(PWM1_TIM_USE, &TIM_OCInitStructure); //根据T指定的参数初始化外设TIM1 4OC1
TIM_OC2PreloadConfig(PWM1_TIM_USE, TIM_OCPreload_Enable); //使能TIM14在CCR1上的预装载寄存器
break;
case 3:
TIM_OC3Init(PWM1_TIM_USE, &TIM_OCInitStructure); //根据T指定的参数初始化外设TIM1 4OC1
TIM_OC3PreloadConfig(PWM1_TIM_USE, TIM_OCPreload_Enable); //使能TIM14在CCR1上的预装载寄存器
break;
case 4:
TIM_OC4Init(PWM1_TIM_USE, &TIM_OCInitStructure); //根据T指定的参数初始化外设TIM1 4OC1
TIM_OC4PreloadConfig(PWM1_TIM_USE, TIM_OCPreload_Enable); //使能TIM14在CCR1上的预装载寄存器
break;
default:
break;
}
TIM_ARRPreloadConfig(PWM1_TIM_USE,ENABLE);//ARPE使能
TIM_Cmd(PWM1_TIM_USE, ENABLE); //使能TIM14
}
void PWM2_Init(u32 arr,u32 psc)
{
//此部分需手动修改IO口设置
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5,ENABLE); //TIM5时钟使能
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE); //使能PORTF时钟
GPIO_PinAFConfig(GPIOA,GPIO_PinSource1,GPIO_AF_TIM5); //GPIOF9复用为定时器2
GPIO_PinAFConfig(GPIOA,GPIO_PinSource2,GPIO_AF_TIM5);
GPIO_PinAFConfig(GPIOA,GPIO_PinSource3,GPIO_AF_TIM5);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3; //GPIOF9
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; //复用功能
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz; //速度100MHz
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; //推挽复用输出
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; //上拉
GPIO_Init(GPIOA,&GPIO_InitStructure); //初始化PF9
TIM_TimeBaseStructure.TIM_Prescaler=psc; //定时器分频
TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up; //向上计数模式
TIM_TimeBaseStructure.TIM_Period=arr; //自动重装载值
TIM_TimeBaseStructure.TIM_ClockDivision=TIM_CKD_DIV1;
TIM_TimeBaseInit(TIM5,&TIM_TimeBaseStructure);//初始化定时器2
//初始化TIM5 Channel1 PWM模式
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //选择定时器模式:TIM脉冲宽度调制模式2
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //比较输出使能
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; //输出极性:TIM输出比较极性低
TIM_OC2Init(TIM5, &TIM_OCInitStructure); //根据T指定的参数初始化外设TIM1 4OC1
TIM_OC2PreloadConfig(TIM5, TIM_OCPreload_Enable); //使能TIM5在CCR1上的预装载寄存器
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //选择定时器模式:TIM脉冲宽度调制模式2
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //比较输出使能
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; //输出极性:TIM输出比较极性低
TIM_OC3Init(TIM5, &TIM_OCInitStructure); //根据T指定的参数初始化外设TIM1 4OC1
TIM_OC3PreloadConfig(TIM5, TIM_OCPreload_Enable); //使能TIM5在CCR1上的预装载寄存器
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //选择定时器模式:TIM脉冲宽度调制模式2
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //比较输出使能
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; //输出极性:TIM输出比较极性低
TIM_OC4Init(TIM5, &TIM_OCInitStructure); //根据T指定的参数初始化外设TIM1 4OC1
TIM_OC4PreloadConfig(TIM5, TIM_OCPreload_Enable); //使能TIM5在CCR1上的预装载寄存器
TIM_ARRPreloadConfig(TIM5,ENABLE);//ARPE使能
TIM_Cmd(TIM5, ENABLE); //使能TIM5
}
void TIM1_CH1_PWM_Init(u16 per,u16 psc)
{
//结构体初始化
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
TIM_BDTRInitTypeDef TIM_BDTRInitStructure;
//时钟
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1,ENABLE);//使能TIM1时钟
//IO复用
GPIO_PinAFConfig(GPIOA,GPIO_PinSource6,GPIO_AF_TIM1);//管脚复用
GPIO_PinAFConfig(GPIOA,GPIO_PinSource7,GPIO_AF_TIM1);//管脚复用
GPIO_PinAFConfig(GPIOA,GPIO_PinSource8,GPIO_AF_TIM1);//管脚复用
//IO配置 PA6刹车 PA7主PWM 8副PWM
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF; //复用输出模式
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_6;//管脚设置
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_100MHz;//速度为100M
GPIO_InitStructure.GPIO_OType=GPIO_OType_PP;//推挽输出
GPIO_InitStructure.GPIO_PuPd=GPIO_PuPd_DOWN;//
GPIO_Init(GPIOA,&GPIO_InitStructure); //初始化结构体
//GPIO_ResetBits(GPIOA,GPIO_Pin_6);
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF; //复用输出模式
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_7;//管脚设置
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_100MHz;//速度为100M
GPIO_InitStructure.GPIO_OType=GPIO_OType_PP;//推挽输出
GPIO_InitStructure.GPIO_PuPd=GPIO_PuPd_UP;//上拉
GPIO_Init(GPIOA,&GPIO_InitStructure); //初始化结构体
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF; //复用输出模式
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_8;//管脚设置
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_100MHz;//速度为100M
GPIO_InitStructure.GPIO_OType=GPIO_OType_PP;//推挽输出
GPIO_InitStructure.GPIO_PuPd=GPIO_PuPd_UP;//上拉
GPIO_Init(GPIOA,&GPIO_InitStructure); //初始化结构体
// 定时器配置
TIM_TimeBaseInitStructure.TIM_Period=per; //自动装载值
TIM_TimeBaseInitStructure.TIM_Prescaler=psc; //分频系数
TIM_TimeBaseInitStructure.TIM_ClockDivision=TIM_CKD_DIV1;
TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up; //设置向上计数模式
TIM_TimeBaseInit(TIM1,&TIM_TimeBaseInitStructure);
// 定时器比较输出通道配置
TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM1;//PWM1模式
TIM_OCInitStructure.TIM_Pulse=0;//设置占空比
//主通道
TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_High;//输出通道电平极性设置
TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;//输出使能
TIM_OCInitStructure.TIM_OCIdleState=TIM_OCIdleState_Reset;//输出通道空闲电平极性配置
//互补通道
TIM_OCInitStructure.TIM_OCNPolarity=TIM_OCNPolarity_High;//互补输出通道电平极性设置
TIM_OCInitStructure.TIM_OutputNState=TIM_OutputNState_Enable;//互补输出使能
TIM_OCInitStructure.TIM_OCNIdleState=TIM_OCNIdleState_Reset;//互补输出通道空闲电平极性配置
TIM_OC1Init(TIM1,&TIM_OCInitStructure); //输出比较通道1初始化
TIM_OC1PreloadConfig(TIM1,TIM_OCPreload_Enable); //使能TIMx在 CCR1 上的预装载寄存器
// 刹车死区配置
TIM_BDTRInitStructure.TIM_AutomaticOutput=TIM_AutomaticOutput_Enable;// 自动输出功能使能
TIM_BDTRInitStructure.TIM_Break=TIM_Break_Disable;//刹车输入
TIM_BDTRInitStructure.TIM_BreakPolarity=TIM_BreakPolarity_High; //刹车输入管脚极性高
TIM_BDTRInitStructure.TIM_DeadTime=168; //输出打开和关闭状态之间的延时 84-1us 168-2us
TIM_BDTRInitStructure.TIM_LOCKLevel=TIM_LOCKLevel_OFF;// 锁电平参数: 不锁任何位
TIM_BDTRInitStructure.TIM_OSSIState=TIM_OSSIState_Disable; //设置在运行模式下非工作状态选项
TIM_BDTRInitStructure.TIM_OSSRState=TIM_OSSRState_Disable; //设置在运行模式下非工作状态选项
TIM_BDTRConfig(TIM1,&TIM_BDTRInitStructure);
TIM_ARRPreloadConfig(TIM1,ENABLE);//使能预装载寄存器
TIM_Cmd(TIM1,ENABLE); //使能定时器
TIM_CtrlPWMOutputs(TIM1,ENABLE); //主输出使能
}
void TIM1_CenterMode_PWM_Init(void)
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOE, ENABLE);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_11 | GPIO_Pin_13;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_Init(GPIOE, &GPIO_InitStructure);
// GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
// GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
// GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
// GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
// GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource9, GPIO_AF_TIM1);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource11, GPIO_AF_TIM1);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource13, GPIO_AF_TIM1);
// GPIO_PinAFConfig(GPIOB, GPIO_PinSource8, GPIO_AF_TIM10);
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
TIM_TimeBaseInitStructure.TIM_Period = 8400 - 1; //20kHz
TIM_TimeBaseInitStructure.TIM_Prescaler = 1 - 1;
TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseInit(TIM1, &TIM_TimeBaseInitStructure);
// TIM_TimeBaseInitStructure.TIM_Period = 8400 - 1; //20kHz
// TIM_TimeBaseInitStructure.TIM_Prescaler = 1 - 1;
// TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
// TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
// TIM_TimeBaseInit(TIM10, &TIM_TimeBaseInitStructure);
TIM_OCInitTypeDef TIM_OCInitStructure;
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset;
TIM_OCInitStructure.TIM_Pulse = 0;
TIM_OC1Init(TIM1,&TIM_OCInitStructure);
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset;
TIM_OCInitStructure.TIM_Pulse = 0;
TIM_OC2Init(TIM1,&TIM_OCInitStructure);
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset;
TIM_OCInitStructure.TIM_Pulse = 0;
TIM_OC3Init(TIM1,&TIM_OCInitStructure);
// TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
// TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
// TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
// TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset;
// TIM_OCInitStructure.TIM_Pulse = 0;
// TIM_OC1Init(TIM10,&TIM_OCInitStructure);
TIM_OC1PreloadConfig(TIM1, TIM_OCPreload_Enable);
TIM_OC2PreloadConfig(TIM1, TIM_OCPreload_Enable);
TIM_OC3PreloadConfig(TIM1, TIM_OCPreload_Enable);
// TIM_OC1PreloadConfig(TIM10, TIM_OCPreload_Enable);
// TIM_BDTRInitTypeDef TIM_BDTRInitStructure;
// TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Enable;
// TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSIState_Enable;
// TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_OFF;
// TIM_BDTRInitStructure.TIM_DeadTime = 17;
// TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Disable;
// TIM_BDTRInitStructure.TIM_Break = TIM_Break_Disable;
// TIM_BDTRConfig(TIM1, &TIM_BDTRInitStructure);
TIM_Cmd(TIM1,ENABLE);
TIM_CtrlPWMOutputs(TIM1, ENABLE);
// TIM_Cmd(TIM10,ENABLE);
// TIM_CtrlPWMOutputs(TIM10, ENABLE);
}
上面写的完整互补通道配置代码请在这里面进行修改
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