HK32F030MF4P6 TIM2(定时器例程)

 应用场景

HK32F030MF4P6 TIM2定时器例程如下

/*配置TIMER*/

// ALR_Time_Init(100,31); // 32Mhz主频   100us定时器
void ALR_Time_Init(uint16_t arr, uint16_t psc)
{
    TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
    NVIC_InitTypeDef NVIC_InitStructure;

    /* Enable periph clock */
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);

    /* Time base configuration */
    TIM_TimeBaseStructure.TIM_Period = arr;
    TIM_TimeBaseStructure.TIM_Prescaler = psc;
    TIM_TimeBaseStructure.TIM_ClockDivision = 0;
    TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;

    TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);

    /* TIM2 enable counter */
    TIM_Cmd(TIM2, ENABLE);  

    /* TIM Interrupts enable */
    TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);

    /* Enable the TIM2 gloabal Interrupt */
    NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    NVIC_Init(&NVIC_InitStructure);      
}
void TIM2_IRQHandler(void)
{
    if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET)
    {
        LED =! LED;
        TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
    }
}