1
NVIC_ClearPendingIRQ(UART_0_INST_INT_IRQN);//清除串口中断标志位
2
NVIC_EnableIRQ(UART_0_INST_INT_IRQN);//使能串口中断

1
void UART_0_INST_IRQHandler(void)
2
{
3
    switch (DL_UART_Main_getPendingInterrupt(UART_0_INST)) {
4
        case DL_UART_MAIN_IIDX_RX:
5
            gEchoData = DL_UART_Main_receiveData(UART_0_INST);
6
            DL_UART_Main_transmitData(UART_0_INST, gEchoData);
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            break;
8
        default:
9
            break;
10
    }
11
}