C5505--UART和SPI不兼容工作

尊敬的TI工程师；

  你好，我用的C5505-开发板ezdsp-usb,现在调试SPI遇到如下问题：

                 1、单独调试SPI，波形正常。

                  2、加上UART串口程序，SPI 正常工作，但是UART 没有数据输出。

                  3、去掉SPI，单独UART，UART正常工作。

不知道哪里配置错了，UART和SPI一起调试的时候不工作。

void spirom_init( )
{
	/* Enable SPI */
	SYS_EXBUSSEL = (SYS_EXBUSSEL & 0x0fff) | 0x1000;
	SYS_PRCNTR = 0x04;
	SYS_PRCNTRLR = 0x0080;

    /* SPI Clock Control */
    SPI_SPICC2 = 0x0000; // SPI clock disabled
    SPI_SPICC1 = 0x00b0; // 12MHz input clock divided by 120


    SPI_SPIDC1 = 0x0000; // SPI0 low idle clock, active low CS, shift out on rising clock, no clock delay
    SPI_SPIDC2 = 0x0000; 
    
    SPI_SPICC2 = 0x8000; // SPI clock enabled
}




void uart_txIsr()
{
				if( i_timeeee < 7 )
				{
				  i_timeeee++;	
			          UART_write( hUart,&Rx_mcu[i_timeeee],i_timeeee,1000); 
				  //USBSTK5505_waitusec( 100 );				  	
				} 

	UART_eventEnable(hUart,CSL_UART_XMITOR_REG_EMPTY_INTERRUPT);	
	//
}





CSL_UartSetup mySetup = 
{
/* Input clock freq in MHz */
    98304000, 
/* baud rate */
    9600,
/* word length of 8 */
    CSL_UART_WORD8, 
/* To generate 1 stop bit */
    1, 
/* Disable the parity */
    CSL_UART_DISABLE_PARITY, 
/*disable fifo */
    CSL_UART_FIFO_DISABLE, 
/*enable trigger 14 fifo */
//	CSL_UART_FIFO_DMA1_DISABLE_TRIG14,
/* Loop Back enable */
  CSL_UART_NO_LOOPBACK,
/**No auto flow control*/
 CSL_UART_NO_AFE ,
/** No RTS */
 CSL_UART_NO_RTS ,
};



Uint16 uart_IntcSample(void)
{	
     UART_init(&uartObj,CSL_UART_INST_0,UART_POLLED);
	 hUart = (CSL_UartHandle)(&uartObj);
    /* Configure UART registers using setup structure */
     UART_setup(hUart,&mySetup);

    /* Loop counter and error flag */
    status = UART_init(&uartObj,CSL_UART_INST_0,UART_INTERRUPT);
    if(CSL_SOK != status)
    {
        printf("UART_init failed error code %d\n",status);
        return status;
    }

    /** Handle created*/
    hUart = (CSL_UartHandle)(&uartObj);

    /* Configure UART registers using setup structure */
    status = UART_setup(hUart,&mySetup);
    if(CSL_SOK != status)
    {
        printf("UART_setup failed error code %d\n",status);
        return status;
    }

	isrAddr.rbiAddr  =	uart_rxIsr;
	isrAddr.tbeiAddr =  uart_txIsr;
	isrAddr.ctoi     =  uart_ctoIsr;
	isrAddr.lsiAddr =   uart_lsiIsr;
 	IRQ_clear(UART_EVENT);
	IRQ_setVecs((Uint32)(&VECSTART));
	/* Configuring Interrupt */    
	IRQ_plug (UART_EVENT, &UART_intrDispatch);
	/* Enabling Interrupt */
	IRQ_enable(UART_EVENT);
	IRQ_globalEnable();

 	UART_setCallback(hUart,&isrAddr);
	status = UART_eventEnable(hUart, CSL_UART_XMITOR_REG_EMPTY_INTERRUPT);
	status = UART_eventEnable(hUart, CSL_UART_RECVOR_REG_DATA_INTERRUPT);
	status = UART_eventEnable(hUart, CSL_UART_RECVOR_LINE_STATUS_INTERRUPT);

  	return 0;
  	     	    
}


interrupt void UART_intrDispatch(void)
{	
	Uint16 eventId = 0;

	IRQ_disable(UART_EVENT);		

	/* Get the event Id which caused interrupt */
	eventId = UART_getEventId(hUart);
	
	if (((void (*)(void))(hUart->UART_isrDispatchTable[eventId])))
	{          	 	
		((void (*)(void))(hUart->UART_isrDispatchTable[eventId]))();
	}

	IRQ_enable(UART_EVENT);
	
	return;
}