LPC1113 / LPC1114 UART 인터럽트 테스트

LPC1113 / LPC1114 UART 인터럽트 테스트

LPC1114 UART 인터럽트 초기화 함수

void U0_SetInt(void)

{

    NVIC_EnableIRQ(UART_IRQn);

    LPC_UART->IER = IER_RBR | IER_RLS; /* Enable UART interrupt */

}

LPC1114 인터럽트 핸들러 함수

//-----------------------------------------------------------------------------
#pragma diag_suppress=Pa082
void UART_IRQHandler(void)
{
    uint8_t IIRValue, LSRValue;
    unsigned char temp;
    
    IIRValue = LPC_UART->IIR;
 
    IIRValue >>= 1;            /* skip pending bit in IIR */
    IIRValue &= 0x07;            /* check bit 1~3, interrupt identification */
    
    if (IIRValue == IIR_RLS)        /* Receive Line Status */
    {
 
    }
    else if (IIRValue == IIR_RDA)    /* Receive Data Available */
    {
        temp = LPC_UART->RBR;
        U0_PutByte(temp);
    }
    else if (IIRValue == IIR_CTI)    /* Character timeout indicator */
    {
 
    }
    else if (IIRValue == IIR_THRE)    /* THRE, transmit holding register empty */
    {
 
    }
}
#pragma diag_default=Pa082
//-----------------------------------------------------------------------------