偶发的定时器产生PWM信号，关闭定时器关不掉

XBB666stm

if( strcmp(receiveData1,"CLOSE_FENGJI_1111111")== 0)        { TIM_Cmd(GENERAL_TIM, DISABLE);  Usart_SendString(USART1,"666bbb777");     }
偶发的定时器产生PWM信号，关闭定时器关不掉，但是后面的 Usart_SendString(USART1,"666bbb777");   串口信息能正常发出来

ZZZ_XXJ

定时器是什么模式？

XBB666stm

ZZZ_XXJ 发表于 2021-4-17 16:07
定时器是什么模式？

void GENERAL_TIM_Mode_Config(void)
{

        GENERAL_TIM_APBxClock_FUN(GENERAL_TIM_CLK,ENABLE);


       
  TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
        //
        TIM_TimeBaseStructure.TIM_Period=GENERAL_TIM_Period;       
        //
        TIM_TimeBaseStructure.TIM_Prescaler= GENERAL_TIM_Prescaler;       
        //
        TIM_TimeBaseStructure.TIM_ClockDivision=TIM_CKD_DIV1;               
        //
        TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up;               
       
        TIM_TimeBaseStructure.TIM_RepetitionCounter=0;       
        //
        TIM_TimeBaseInit(GENERAL_TIM, &TIM_TimeBaseStructure);

       
        uint16_t CCR1_Val = 2;

        TIM_OCInitTypeDef  TIM_OCInitStructure;
       
        TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;

        TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;

//        TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
        TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;

        TIM_OCInitStructure.TIM_Pulse = CCR1_Val;
        TIM_OC1Init(GENERAL_TIM, &TIM_OCInitStructure);
        TIM_OC1PreloadConfig(GENERAL_TIM, TIM_OCPreload_Enable);

         TIM_Cmd(GENERAL_TIM, DISABLE);
}

Bslong2003

努力学习中

ZZZ_XXJ

XBB666stm 发表于 2021-4-23 14:18
void GENERAL_TIM_Mode_Config(void)
{

这部分看起来没问题，可以进debug把定时器的寄存器表打开看下使能位的具体情况