中断函数忘加了

extern DMA_HandleTypeDef hdma_lpuart1_rx;
extern DMA_HandleTypeDef hdma_lpuart1_tx;
extern DMA_HandleTypeDef hdma_usart1_rx;
extern DMA_HandleTypeDef hdma_usart1_tx;
extern DMA_HandleTypeDef hdma_usart2_rx;
extern DMA_HandleTypeDef hdma_usart2_tx;
extern UART_HandleTypeDef huart1;
extern UART_HandleTypeDef huart2;
extern UART_HandleTypeDef hlpuart1;

void DMA1_Channel4_5_6_7_IRQHandler(void)
{

HAL_DMA_IRQHandler(&hdma_usart2_tx);
HAL_DMA_IRQHandler(&hdma_usart2_rx);

HAL_DMA_IRQHandler(&hdma_lpuart1_tx);
HAL_DMA_IRQHandler(&hdma_lpuart1_rx);

}

void LPUART1_IRQHandler(void)
{

UsartReceive_IDLE(&hlpuart1);

HAL_UART_IRQHandler(&hlpuart1);

}