CH32V208的定时器5，进入中断时间好长，改成TIM1-4都是正常的，TIM5就不正常了，代码如下

uint16_t count = 0;

void timer_init(void)

{

    RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE);

    TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure = {0};

    TIM_TimeBaseInitStructure.TIM_Period = 9999;

    TIM_TimeBaseInitStructure.TIM_Prescaler = 1;

    TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;

    TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;

    TIM_TimeBaseInit(TIM5, &TIM_TimeBaseInitStructure);

    TIM_ITConfig(TIM5, TIM_IT_Update, ENABLE);

    TIM_ClearITPendingBit(TIM5,TIM_IT_Update);

    NVIC_InitTypeDef NVIC_InitStructure;

    NVIC_InitStructure.NVIC_IRQChannel = TIM5_IRQn;

    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;

    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;

    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

    NVIC_Init(&NVIC_InitStructure);

    TIM_Cmd(TIM5, ENABLE);

}

void TIM5_IRQHandler(void)

{

    if (TIM_GetITStatus(TIM5, TIM_IT_Update)!= RESET)

    {

        // 在这里添加定时器 5 中断服务程序的内容

        // 例如，控制一个 LED 闪烁或者执行其他特定任务

        count ++;

        TIM_ClearITPendingBit(TIM5, TIM_IT_Update);

    }

}

TIM_Cmd只能定时器1到定时器4 我想用定时5定时中断要怎么配置

注意在按照标准库配置好之后，重新按照地址对TIM5的ARR、PSC、CCP(ARR、PSC必须配置，CCP在使用pwm功能时需要配置)等寄存器进行配置

https://www.cnblogs.com/wchmcu/p/17177773.html