stm32f103zet6用TIM1定时器四个通道输出四路pwm波

htf · 发表于 2022-11-4 10:55:23

各位大佬们，首先，我用TIM1的四个通道产生PWM波，然后用其他定时器进行输入捕获脉冲数，通过控制脉冲数来控制步进电机转动，当达到我设置的脉冲数后，用TIM_SetCompare1(TIM1,0);函数停止，现在的问题是pwm正常产生，但是到达指定脉冲后无法停止，启动调试，发现在while循环里的判别函数里跳不出来，代码如下，求大佬指教。

主函数
delay_init(); //延时函数初始化
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //设置NVIC中断分组2:2位抢占优先级，2位响应优先级
uart_init(115200); //串口初始化为115200
LED_Init(); //LED端口初始化
KEY_Init(); //初始化与按键连接的硬件接口
// PEout(4)=0; //使能
GPIO_ResetBits(GPIOE,GPIO_Pin_4);
PEout(5)=1; //上圆周电机方向
PEout(6)=1; //报警
TIM1_CH4_PWM_Init(1000, 71); //不要传奇数 50 周期是500us 100 周期是1ms
TIM3_Init() ; //配置 TIM2_CH1_ETR 为外部脉冲计数并且使能中断来一个上升沿进一次中断
TIM5_Init();
TIM1_CH3_PWM_Init(1000, 71);
TIM1_CH2_PWM_Init(1000, 71);
TIM1_CH1_PWM_Init(1000, 71);
//
while(1)
{
if(TIM_GetCounter(TIM3) >= 3)
{
TIM_SetCompare4(TIM1,0);
}
if(TIM_GetCounter(TIM5) >= 3)
{
TIM_SetCompare1(TIM1,0);//在这个循环里无法进入停止程序，两种可能，计数问题或者停止函数问题
}
pwm波产生函数
void TIM1_CH4_PWM_Init(u16 arr ,u16 psc)
{
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1,ENABLE);
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_11 ; //|GPIO_Pin_8; //11是ch4 8 是ch1
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP; //复用推挽输出 //
GPIO_Init(GPIOA,&GPIO_InitStructure);
TIM_TimeBaseInitStructure.TIM_Period = arr; //设置自动重装载寄存器周期的值
TIM_TimeBaseInitStructure.TIM_Prescaler = psc;//设置用来作为TIMx时钟频率预分频值 7199:10k
TIM_TimeBaseInitStructure.TIM_ClockDivision = 0;//设置时钟分割:TDTS = Tck_tim
TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;//TIM向上计数模式
TIM_TimeBaseInit(TIM1, & TIM_TimeBaseInitStructure);
TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse=arr/2;
TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_OCIdleState=TIM_OCIdleState_Set;
TIM_OC4Init(TIM1,&TIM_OCInitStructure);
TIM_OC4PreloadConfig(TIM1, TIM_OCPreload_Enable);
TIM_Cmd(TIM1,ENABLE);//ê1?ü?ò??ê§?üTIMxíaéè
//下面这句是高级定时器才有，输出PWM必须打开
TIM_CtrlPWMOutputs(TIM1, ENABLE); //pwm输出
}
void TIM1_CH3_PWM_Init(u16 arr ,u16 psc)
{
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1,ENABLE);
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_10 ; //|GPIO_Pin_8;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP; //复用推挽输出 //
GPIO_Init(GPIOA,&GPIO_InitStructure);
TIM_TimeBaseInitStructure.TIM_Period = arr; //设置自动重装载寄存器周期的值
TIM_TimeBaseInitStructure.TIM_Prescaler = psc;//设置用来作为TIMx时钟频率预分频值 7199:10k
TIM_TimeBaseInitStructure.TIM_ClockDivision = 0;//设置时钟分割:TDTS = Tck_tim
TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;//TIM向上计数模式
TIM_TimeBaseInit(TIM1, & TIM_TimeBaseInitStructure);
TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse=arr/2;
TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_OCIdleState=TIM_OCIdleState_Set;
TIM_OC3Init(TIM1,&TIM_OCInitStructure);
TIM_OC3PreloadConfig(TIM1, TIM_OCPreload_Enable);
TIM_Cmd(TIM1,ENABLE);//ê1?ü?ò??ê§?üTIMxíaéè
//下面这句是高级定时器才有，输出PWM必须打开
TIM_CtrlPWMOutputs(TIM1, ENABLE); //pwm输出
}
void TIM1_CH2_PWM_Init(u16 arr ,u16 psc)
{
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1,ENABLE);
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_9 ; //|GPIO_Pin_8; //11是ch4 8 是ch1
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP; //复用推挽输出 //
GPIO_Init(GPIOA,&GPIO_InitStructure);
TIM_TimeBaseInitStructure.TIM_Period = arr; //设置自动重装载寄存器周期的值
TIM_TimeBaseInitStructure.TIM_Prescaler = psc;//设置用来作为TIMx时钟频率预分频值 7199:10k
TIM_TimeBaseInitStructure.TIM_ClockDivision = 0;//设置时钟分割:TDTS = Tck_tim
TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;//TIM向上计数模式
TIM_TimeBaseInit(TIM1, & TIM_TimeBaseInitStructure);
TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse=arr/2;
TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_OCIdleState=TIM_OCIdleState_Set;
TIM_OC2Init(TIM1,&TIM_OCInitStructure);
TIM_OC2PreloadConfig(TIM1, TIM_OCPreload_Enable);
TIM_Cmd(TIM1,ENABLE);//ê1?ü?ò??ê§?üTIMxíaéè
//下面这句是高级定时器才有，输出PWM必须打开
TIM_CtrlPWMOutputs(TIM1, ENABLE); //pwm输出
}
void TIM1_CH1_PWM_Init(u16 arr ,u16 psc)
{
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1,ENABLE);
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_8 ; //|GPIO_Pin_8; //11是ch4 8 是ch1
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP; //复用推挽输出 //
GPIO_Init(GPIOA,&GPIO_InitStructure);
TIM_TimeBaseInitStructure.TIM_Period = arr; //设置自动重装载寄存器周期的值
TIM_TimeBaseInitStructure.TIM_Prescaler = psc;//设置用来作为TIMx时钟频率预分频值 7199:10k
TIM_TimeBaseInitStructure.TIM_ClockDivision = 0;//设置时钟分割:TDTS = Tck_tim
TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;//TIM向上计数模式
TIM_TimeBaseInit(TIM1, & TIM_TimeBaseInitStructure);
TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse=arr/2;
TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_OCIdleState=TIM_OCIdleState_Set;
TIM_OC1Init(TIM1,&TIM_OCInitStructure);
TIM_OC1PreloadConfig(TIM1, TIM_OCPreload_Enable);
TIM_Cmd(TIM1,ENABLE);//ê1?ü?ò??ê§?üTIMxíaéè
//下面这句是高级定时器才有，输出PWM必须打开
TIM_CtrlPWMOutputs(TIM1, ENABLE); //pwm输出
}
输入捕获函数
void TIM3_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); //使能TIM3时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE); //使能GPIOA时钟
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; //PA0 清除之前设置
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD; //PA0 输入
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_ResetBits(GPIOD,GPIO_Pin_2); //PA0 下拉
//初始化定时器2 TIM2
TIM_TimeBaseStructure.TIM_Period = 0xFFFF; //设定计数器自动重装值
TIM_TimeBaseStructure.TIM_Prescaler =0; //预分频器
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //设置时钟分割:TDTS = Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //TIM向上计数模式
TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //根据TIM_TimeBaseInitStruct中指定的参数初始化TIMx的时间基数单位
TIM_ITRxExternalClockConfig(TIM3,TIM_TS_ETRF); //配置外部触发，否则不会计数
TIM_ETRClockMode2Config(TIM3, TIM_ExtTRGPSC_OFF, TIM_ExtTRGPolarity_NonInverted, 0); //TIM_ExtTRGPolarity_Inverted 下降沿
TIM_SetCounter(TIM3, 0);
TIM_Cmd(TIM3,ENABLE ); //使能定时器
TIM_ITConfig( //使能或者失能指定的TIM中断
TIM3, //TIM2
TIM_IT_Trigger ,
ENABLE //使能
);
NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn; //TIM3中断
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; //先占优先级0级
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; //从优先级3级
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能
NVIC_Init(&NVIC_InitStructure); //根据NVIC_InitStruct中指定的参数初始化外设NVIC寄存器
//Cnt = TIM_GetCounter(TIM3); // TIM_SetCounter(TIM3,0);
}
void TIM3_IRQHandler(void) //TIM3中断
{
if (TIM_GetITStatus(TIM3, TIM_IT_Trigger) != RESET) //检查指定的TIM中断发生与否:TIM 中断源
{
//time_cnt_linshi ++;
TIM_ClearITPendingBit(TIM3, TIM_IT_Trigger ); //清除TIMx的中断待处理位:TIM 中断源
//if(time_cnt_linshi==4) //这里 4 就表示输出4 个上升沿就停止输出
//{
//TIM_Cmd(TIM1, DISABLE);
//time_cnt_linshi = 0;
//}
}
}
/* 指定个脉冲停止输出用这个
void TIM3_IRQHandler(void) //TIM3中断
{
if (TIM_GetITStatus(TIM3, TIM_IT_Trigger) != RESET) //检查指定的TIM中断发生与否:TIM 中断源
{
time_cnt_linshi ++;
TIM_ClearITPendingBit(TIM3, TIM_IT_Trigger ); //清除TIMx的中断待处理位:TIM 中断源
if(time_cnt_linshi==4) //这里 4 就表示输出4 个上升沿就停止输出
{
TIM_Cmd(TIM1, DISABLE); //使能TIMx外设
time_cnt_linshi = 0;
}
}
}
*/
void TIM5_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE); //使能TIM4时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); //使能GPIOE时钟
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0; //PE0 清除之前设置
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD; //PE0 输入
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_ResetBits(GPIOA,GPIO_Pin_0); //PE0 下拉
//初始化定时器5 TIM5
TIM_TimeBaseStructure.TIM_Period = 0xFFFF; //设定计数器自动重装值
TIM_TimeBaseStructure.TIM_Prescaler =0; //预分频器
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //设置时钟分割:TDTS = Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //TIM向上计数模式
TIM_TimeBaseInit(TIM5, &TIM_TimeBaseStructure); //根据TIM_TimeBaseInitStruct中指定的参数初始化TIMx的时间基数单位
TIM_ITRxExternalClockConfig(TIM5,TIM_TS_ETRF); //配置外部触发，否则不会计数
TIM_ETRClockMode2Config(TIM5, TIM_ExtTRGPSC_OFF, TIM_ExtTRGPolarity_NonInverted, 0); //TIM_ExtTRGPolarity_Inverted 下降沿
TIM_SetCounter(TIM4, 0);
TIM_Cmd(TIM5,ENABLE ); //使能定时器
TIM_ITConfig( //使能或者失能指定的TIM中断
TIM5, //TIM4
TIM_IT_Trigger ,
ENABLE //使能
);
NVIC_InitStructure.NVIC_IRQChannel = TIM5_IRQn; //TIM4中断
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; //先占优先级0级
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; //从优先级3级
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能
NVIC_Init(&NVIC_InitStructure); //根据NVIC_InitStruct中指定的参数初始化外设NVIC寄存器
//Cnt = TIM_GetCounter(TIM3); // TIM_SetCounter(TIM3,0);
}
void TIM5_IRQHandler(void) //TIM4中断
{
if (TIM_GetITStatus(TIM5, TIM_IT_Trigger) != RESET) //检查指定的TIM中断发生与否:TIM 中断源
{
TIM_ClearITPendingBit(TIM5, TIM_IT_Trigger ); //清除TIMx的中断待处理位:TIM 中断源
}}