Android定时器死循环问题,开启TIM1定时器后，进入TIM1_CC_IRQHandler死循环

有个问题咨询大佬们：设置了STM32F103R8T6 的定时器1 为比较输出  产生PWM ，现在设置好后，在定时器初始化函数中一开起定时器1就一直进入TIM1_CC_IRQHandler中断中，利用串口打印一直在这个中断里 ，没有进入while。关闭了TIM1通道也没有用，不知道为何？烦请大佬们看下问题原因在哪里

函数源代码如下：

定时器初始化函数：

void TIM1_Int_Init(void)

{

GPIO_InitTypeDef GPIO_InitStructure;

TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;

TIM_OCInitTypeDef  TIM_OCInitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);        //使能定时器3时钟

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA , ENABLE);  //使能GPIO外设和AFIO复用功能模块时钟

TIM_DeInit(TIM1);                                                      //将TIM1定时器初始化位复位值

TIM_InternalClockConfig(TIM1);

NVIC_InitTypeDef NVIC_InitStructure;

NVIC_InitStructure.NVIC_IRQChannel = TIM1_CC_IRQn;  //TIM1中断

NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;  //先占优先级0级

NVIC_InitStructure.NVIC_IRQChannelSubPriority = 4;  //从优先级3级

NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能

NVIC_Init(&NVIC_InitStructure);  //初始化NVIC寄存器

bsp_InitMOTO();

//设置该引脚为复用输出功能,输出TIM1 CH1的PWM脉冲波形        GPIOA.8

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8; //TIM1_CH1

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  //复用推挽输出

GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

GPIO_Init(GPIOA, &GPIO_InitStructure);//初始化GPIO

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11; //TIM_CH4

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  //复用推挽输出

GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

GPIO_Init(GPIOA, &GPIO_InitStructure);//初始化GPIO

//初始化TIM1

TIM_TimeBaseStructure.TIM_Period = STEPMOTOR_TIM_PERIOD; //设置在下一个更新事件装入活动的自动重装载寄存器周期的值

TIM_TimeBaseStructure.TIM_Prescaler =STEPMOTOR_TIM_PRESCALER; //设置用来作为TIMx时钟频率除数的预分频值

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_TimeBaseStructure.TIM_RepetitionCounter=0;

TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure); //根据TIM_TimeBaseInitStruct中指定的参数初始化TIMx的时间基数单位

TIM_ClearITPendingBit(TIM1,TIM_IT_CC1|TIM_IT_CC4);

TIM_ClearFlag(TIM1, TIM_FLAG_CC1|TIM_FLAG_CC4);

//初始化TIM1 Channe1 PWM模式

TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Toggle;                // 比较输出模式：反转输出

TIM_OCInitStructure.TIM_Pulse = 0xFFFF;                      // 脉冲数

TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;          // 输出极性

TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_Low;         // 互补通道输出极性

TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset;       // 空闲电平

TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;     // 互补通道空闲电平

TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //比较输出使能

TIM_OC1Init(TIM1, &TIM_OCInitStructure);  //根据T指定的参数初始化外设TIM1  CH1

//        TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Toggle;                // 比较输出模式：反转输出

TIM_OCInitStructure.TIM_Pulse = 0xFFFF;                      // 脉冲数

//  TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;          // 输出极性

//  TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_Low;         // 互补通道输出极性

//  TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset;       // 空闲电平

//  TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;     // 互补通道空闲电平

//        TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //比较输出使能

TIM_OC4Init(TIM1, &TIM_OCInitStructure);

TIM_OC1PreloadConfig(TIM1, TIM_OCPreload_Disable);  //使能TIM1在CCR1上的预装载寄存器

TIM_OC4PreloadConfig(TIM1, TIM_OCPreload_Disable);

TIM_CCxCmd(TIM1, TIM_Channel_1, TIM_CCx_Disable);

TIM_CCxCmd(TIM1, TIM_Channel_4, TIM_CCx_Disable);

TIM_ClearITPendingBit(TIM1,TIM_IT_CC1|TIM_IT_CC4);

TIM_ClearFlag(TIM1, TIM_FLAG_CC1|TIM_FLAG_CC4);

TIM_ITConfig(TIM1,TIM_IT_CC1,ENABLE ); //使能指定的TIM3中断,允许更新中断

TIM_ITConfig(TIM1,TIM_IT_CC4,ENABLE ); //使能指定的TIM3中断,允许更新中断

TIM_CtrlPWMOutputs(TIM1,ENABLE);

TIM_Cmd(TIM1, ENABLE);

}

中断处理函数：

if(TIM_GetITStatus(TIM1        , TIM_IT_CC1) == SET)

{

// 清楚定时器中断

TIM_ClearITPendingBit(TIM1, TIM_IT_CC1);

TIM_ClearFlag(TIM1,TIM_FLAG_CC1);

// 设置比较值

tim_count=TIM_GetCounter(TIM1);

TIM_SetCompare1(TIM1,tim_count+srd.step_delay);

i++;     // 定时器中断次数计数值

if(i==2) // 2次，说明已经输出一个完整脉冲

{

i=0;   // 清零定时器中断次数计数值

switch(srd.run_state) // 加减速曲线阶段

{

case STOP_M:

step_count = 0;  // 清零步数计数器

rest = 0;        // 清零余值

last_accel_delay=0;

// 关闭通道

TIM_CCxCmd(TIM1, TIM_Channel_1, TIM_CCx_Disable);

TIM_ClearFlag(TIM1,TIM_FLAG_CC1 );

//                                        //TIM_ITConfig(TIM1,TIM_IT_CC1,DISABLE ); //使能指定的TIM3中断,允许更新中断

//                                  //TIM_CtrlPWMOutputs(TIM1,DISABLE);

TIM_Cmd(TIM1, DISABLE);

STEPMOTOR_OUTPUT_DISABLE();

MotionStatus = 0;  //  电机为停止状态

Motor42=0;

Xzhuan=0;

printf("MOTOR STOP!!!!!!!!!!!!!!!!!!!!!!\r\n");

break;

默认state为STOP_M 关闭定时器。

主函数：

NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);

Stm32_Clock_Init(9);

delay_init();

USART2_Init();

TIM1_Int_Init();

while(1)

{

delay_ms(1000);

printf("IN while\r\n");

}

串口助手开机打印信息：

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

MOTOR STOP!!!!!!!!!!!!!!!!!!!!!!

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

IN TIM1_IRQ

显示的是一直在TIM1中断函数中 没有进入到WHILE

跪求大佬们指导