HAL定时器比较模式中断代码
时间: 2023-07-10 14:18:02 浏览: 62
以下是HAL库的定时器比较模式中断代码示例,其中TIMx是定时器结构体指针,Channel是比较通道编号,比如1代表比较通道1:
```
void HAL_TIM_PWM_MspInit(TIM_HandleTypeDef *htim)
{
GPIO_InitTypeDef GPIO_InitStruct;
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* TIMx Peripheral clock enable */
__HAL_RCC_TIMx_CLK_ENABLE();
/* Enable all GPIO Channels Clock requested */
__HAL_RCC_GPIOx_CLK_ENABLE();
/* Configure PA Channel 1 as alternate function */
GPIO_InitStruct.Pin = GPIO_PIN_CHANNELx;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF_TIMx;
HAL_GPIO_Init(GPIOx, &GPIO_InitStruct);
/*##-2- Configure the NVIC for TIMx ########################################*/
/* Set the TIMx priority */
HAL_NVIC_SetPriority(TIMx_IRQn, 0, 1);
/* Enable the TIMx global Interrupt */
HAL_NVIC_EnableIRQ(TIMx_IRQn);
}
void HAL_TIM_OC_MspInit(TIM_HandleTypeDef *htim)
{
GPIO_InitTypeDef GPIO_InitStruct;
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* TIMx Peripheral clock enable */
__HAL_RCC_TIMx_CLK_ENABLE();
/* Enable all GPIO Channels Clock requested */
__HAL_RCC_GPIOx_CLK_ENABLE();
/* Configure PA Channel 1 as alternate function */
GPIO_InitStruct.Pin = GPIO_PIN_CHANNELx;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF_TIMx;
HAL_GPIO_Init(GPIOx, &GPIO_InitStruct);
/*##-2- Configure the NVIC for TIMx ########################################*/
/* Set the TIMx priority */
HAL_NVIC_SetPriority(TIMx_IRQn, 0, 1);
/* Enable the TIMx global Interrupt */
HAL_NVIC_EnableIRQ(TIMx_IRQn);
}
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
if (htim->Instance == TIMx) {
/* Period elapsed callback */
}
}
void HAL_TIM_PWM_PulseFinishedCallback(TIM_HandleTypeDef *htim)
{
if (htim->Instance == TIMx && htim->Channel == Channel) {
/* Pulse finished callback */
}
}
void HAL_TIM_PWM_PulseFinishedHalfCpltCallback(TIM_HandleTypeDef *htim)
{
if (htim->Instance == TIMx && htim->Channel == Channel) {
/* Pulse finished half complete callback */
}
}
void HAL_TIM_OC_DelayElapsedCallback(TIM_HandleTypeDef *htim)
{
if (htim->Instance == TIMx && htim->Channel == Channel) {
/* Delay elapsed callback */
}
}
void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef *htim)
{
if (htim->Instance == TIMx && htim->Channel == Channel) {
/* Input capture callback */
}
}
void HAL_TIM_IC_CaptureHalfCpltCallback(TIM_HandleTypeDef *htim)
{
if (htim->Instance == TIMx && htim->Channel == Channel) {
/* Input capture half complete callback */
}
}
```
其中,`HAL_TIM_PeriodElapsedCallback`为定时器溢出中断回调函数,`HAL_TIM_PWM_PulseFinishedCallback`和`HAL_TIM_PWM_PulseFinishedHalfCpltCallback`为定时器比较模式下的脉冲完成回调函数,`HAL_TIM_OC_DelayElapsedCallback`为定时器比较模式下的延时完成回调函数,`HAL_TIM_IC_CaptureCallback`和`HAL_TIM_IC_CaptureHalfCpltCallback`为定时器输入捕获回调函数。需要根据具体的应用场景选择相应的回调函数,并在回调函数中添加相应的处理代码。