[MM32软件] 【MM32 eMiniBoard测评报告】+ 定时器1中断例程

void Tim1InterruptInit(void)

{

    TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;

                NVIC_InitTypeDef  NVIC_InitStructure;



                RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);



    TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);

    TIM_TimeBaseStructure.TIM_Period = 1000 - 1;

    TIM_TimeBaseStructure.TIM_Prescaler = 48000000L / 1000 - 1;

    //Setting Clock Segmentation

    TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;

    TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;

    //TIM Upward Counting Mode

    TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;

    TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);



    TIM_ARRPreloadConfig(TIM1, ENABLE);

    TIM_ClearFlag(TIM1, TIM_FLAG_Update);

    TIM_ITConfig(TIM1, TIM_IT_Update, ENABLE);



    

    NVIC_InitStructure.NVIC_IRQChannel = TIM1_BRK_UP_TRG_COM_IRQn;

    NVIC_InitStructure.NVIC_IRQChannelPriority = 1;                

    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;                        

    NVIC_Init(&NVIC_InitStructure);

    TIM_Cmd(TIM1, ENABLE);

}



void TIM1_BRK_UP_TRG_COM_IRQHandler(void)

{

    if (TIM_GetITStatus(TIM1, TIM_IT_Update) != RESET) {

        TIM_ClearITPendingBit(TIM1, TIM_IT_Update);

        scan_flag = 1;

    }

}