ATSAMD51板子驱动SPI接口网口W5500的问题

void SERCOM6_SPI_Write(unsigned char pTransmitData)

{

    if(SERCOM6_SPI_IsTransmitterBusy()==false)

    {

        SERCOM6_REGS->SPIM.SERCOM_DATA=pTransmitData;

        while((SERCOM6_REGS->SPIM.SERCOM_INTFLAG&0x02)==0);

        SERCOM6_REGS->SPIM.SERCOM_INTFLAG|=0x02;

    }

}

uint8_t SERCOM6_SPI_Read(void)

{

    uint8_t temp;

    if(SERCOM6_SPI_IsTransmitterBusy()==false)

    {

        while((SERCOM6_REGS->SPIM.SERCOM_INTFLAG&0x04)==0);

        temp=SERCOM6_REGS->SPIM.SERCOM_DATA;

        return temp;

    }

    return 0;

}

uint8_t SERCOM6_SPI_Read1(void)

{

    uint8_t temp;

    

    temp=SERCOM6_REGS->SPIM.SERCOM_DATA;

    return temp;

}

void SPI1_Send_Byte(unsigned char dat)

{   

    SERCOM6_SPI_Write(dat);

}

unsigned char Read_W5500_1Byte(unsigned short reg)

{

        unsigned char i;

    

        

        GPIO_PC06_Clear();                        

        SPI1_Send_Short(reg);//ͨ¹ýSPI1д16λ¼Ä´æÆ÷µØÖ·

        SPI1_Send_Byte(FDM1|RWB_READ|COMMON_R);//ͨ¹ýSPI1д¿ØÖÆ×Ö½Ú,1¸ö×Ö½ÚÊý¾Ý³¤¶È,¶ÁÊý¾Ý,Ñ¡ÔñͨÓüĴæÆ÷





        i=SERCOM6_SPI_Read1();

        i=SERCOM6_SPI_Read();

    GPIO_PC06_Set();

        return i;//·µ»Ø¶ÁÈ¡µ½µÄ¼Ä´æÆ÷Êý¾Ý

}

void SERCOM6_SPI_Initialize(void)

{

    /* Instantiate the SERCOM6 SPI object */

    sercom6SPIObj.callback = NULL ;

    sercom6SPIObj.transferIsBusy = false ;

    sercom6SPIObj.txSize = 0U;

    sercom6SPIObj.rxSize = 0U;



    /* Selection of the Character Size and Receiver Enable */

    //SERCOM6_REGS->SPIM.SERCOM_CTRLB = SERCOM_SPIM_CTRLB_CHSIZE_8_BIT | SERCOM_SPIM_CTRLB_RXEN_Msk ;

    SERCOM6_REGS->SPIM.SERCOM_CTRLB = 0x0002C200;

    /* Wait for synchronization */

    while((SERCOM6_REGS->SPIM.SERCOM_SYNCBUSY) != 0U)

    {

        /* Do nothing */

    }



    /* Selection of the Baud Value */

    SERCOM6_REGS->SPIM.SERCOM_BAUD = (uint8_t)SERCOM_SPIM_BAUD_BAUD(SERCOM6_SPIM_BAUD_VALUE);



    /* Configure Data Out Pin Out , Master Mode,

     * Data In and Pin Out,Data Order and Standby mode if configured

     * and Selection of the Clock Phase and Polarity and Enable the SPI Module

     */

    //SERCOM6_REGS->SPIM.SERCOM_CTRLA = SERCOM_SPIM_CTRLA_MODE_SPI_MASTER | SERCOM_SPIM_CTRLA_DOPO_PAD0 | SERCOM_SPIM_CTRLA_DIPO_PAD0 | SERCOM_SPIM_CTRLA_CPOL_IDLE_LOW | SERCOM_SPIM_CTRLA_CPHA_LEADING_EDGE | SERCOM_SPIM_CTRLA_DORD_MSB | SERCOM_SPIM_CTRLA_ENABLE_Msk | SERCOM_SPIM_CTRLA_RUNSTDBY_Msk;

    //SERCOM6_REGS->SPIM.SERCOM_CTRLA = 0x0030018e;

    SERCOM6_REGS->SPIM.SERCOM_CTRLA = 0x0130018e;

    /* Wait for synchronization */

    while((SERCOM6_REGS->SPIM.SERCOM_SYNCBUSY) != 0U)

    {

        /* Do nothing */

    }

    SERCOM6_REGS->SPIM.SERCOM_CTRLC = 0x00000000;

    /* Wait for synchronization */

    while((SERCOM6_REGS->SPIM.SERCOM_SYNCBUSY) != 0U)

    {

        /* Do nothing */

    }

    SERCOM6_REGS->SPIM.SERCOM_DBGCTRL=0;

    /* Wait for synchronization */

    while((SERCOM6_REGS->SPIM.SERCOM_SYNCBUSY) != 0U)

    {

        /* Do nothing */

    }

}