定时器1的中断名字和通用定时器有点差别，其他地方设置都一样。
void TIMER1_Init(u16 arr, u16 psc)
{
    TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
        NVIC_InitTypeDef NVIC_InitStructure;
       
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
       
        TIM_DeInit(TIM1);

    TIM_TimeBaseStructure.TIM_Period = arr;
    TIM_TimeBaseStructure.TIM_Prescaler = psc;
    TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
    TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
        TIM_TimeBaseStructure.TIM_RepetitionCounter=0x00;
    TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
       
        TIM_ClearFlag(TIM1,TIM_FLAG_Update);
        TIM_ITConfig(TIM1,TIM_IT_Update,ENABLE);        //允许更新中断
       
        NVIC_InitStructure.NVIC_IRQChannel=TIM1_UP_IRQn;                //TIM1更新中断
        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0x02;
        NVIC_InitStructure.NVIC_IRQChannelSubPriority=0x02;
        NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
        NVIC_Init(&NVIC_InitStructure);
       
        TIM_Cmd(TIM1,ENABLE);
}
void TIM1_UP_IRQHandler(void)
{
        if(TIM_GetITStatus(TIM1,TIM_IT_Update)!=RESET)
        {
                TIM_ClearITPendingBit(TIM1,TIM_IT_Update);
                LED0=!LED0;
        }
}