首先,您必须配置您的计时器:
/* TIM2 init function */
static void MX_TIM2_Init(void)
{
TIM_SlaveConfigTypeDef sSlaveConfig;
TIM_MasterConfigTypeDef sMasterConfig;
htim2.Instance = TIM2;
htim2.Init.Prescaler = 10000;
htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
htim2.Init.Period = 1000;
htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
if (HAL_TIM_Base_Init(&htim2) != HAL_OK)
{
Error_Handler();
}
sSlaveConfig.SlaveMode = TIM_SLAVEMODE_RESET;
sSlaveConfig.InputTrigger = TIM_TS_ITR0;
if (HAL_TIM_SlaveConfigSynchronization(&htim2, &sSlaveConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
}
其次使用这个函数来处理中断:
void TIM2_IRQHandler(void)
{
HAL_GPIO_TogglePin(GPIOA,GPIO_PIN_10);
__HAL_TIM_CLEAR_FLAG(&htim2, TIM_FLAG_UPDATE); //clear interrupt flag
//HAL_Delay(500);
}
不要忘记在 main() 函数中启用中断:
HAL_NVIC_SetPriority(TIM2_IRQn, 0, 1);
HAL_NVIC_EnableIRQ(TIM2_IRQn);// Enable interrupt from TIM3 (NVIC level)