TM4C1294NCPDT I2C读写AT24C256的问题

typedef enum I2CChannel
{
    TM4C_I2C0 = 0,
    TM4C_I2C1,
    TM4C_I2C2,
    TM4C_I2C3,
    TM4C_I2C4,
    TM4C_I2C5,
    TM4C_I2C6,
    TM4C_I2C7,
    TM4C_I2C8,
    TM4C_I2C9,
    TM4C_I2C_NUM,
}tI2CChannel;

typedef struct
{
    uint8_t ulSCLPins;
    uint8_t ulSDAPins;   
    uint32_t ulPinsBase; 
    uint32_t ulPinPerID;   
    uint32_t ulI2CPerID;
    uint32_t ulSCLPinType;
    uint32_t ulSDAPinType; 
}tI2CDev;

uint32_t ul32I2CBaseAddress[TM4C_I2C_NUM] = 
{
    I2C0_BASE,
    I2C1_BASE,
    I2C2_BASE,
    I2C3_BASE,
    I2C4_BASE,
    I2C5_BASE,
    I2C6_BASE,
    I2C7_BASE,
    I2C8_BASE,
    I2C9_BASE,
};

tI2CDev g_tI2CCfg = 
{//I2C0
    GPIO_PIN_2,//SCL
    GPIO_PIN_3,//SDA
    GPIO_PORTB_BASE,
    SYSCTL_PERIPH_GPIOB,
    SYSCTL_PERIPH_I2C0,
    GPIO_PB2_I2C0SCL,
    GPIO_PB3_I2C0SDA
},

uint8_t g_ucDevAddr = 0xA0

//I2C初始化
void BSP_I2CMasterInit(tI2CChannel Channel, tI2CDev tI2CDev, bool bFast, uint32_t ulSysClk)
{
    SysCtlPeripheralEnable(tI2CDev.ulPinPerID);
    while(!SysCtlPeripheralReady(tI2CDev.ulPinPerID));
    
    SysCtlPeripheralDisable(tI2CDev.ulI2CPerID);
    SysCtlPeripheralReset(tI2CDev.ulI2CPerID);
    SysCtlPeripheralEnable(tI2CDev.ulI2CPerID);
    while(!SysCtlPeripheralReady(tI2CDev.ulI2CPerID));
    
    GPIOPinConfigure(tI2CDev.ulSCLPinType);
    GPIOPinConfigure(tI2CDev.ulSDAPinType);
    
    //GPIOPinTypeI2C(tI2CDev.ulPinsBase,tI2CDev.ulSDAPins|tI2CDev.ulSCLPins);
    GPIOPinTypeI2C(tI2CDev.ulPinsBase,tI2CDev.ulSDAPins);
    GPIOPinTypeI2CSCL(tI2CDev.ulPinsBase,tI2CDev.ulSCLPins);
    
    I2CMasterInitExpClk(ul32I2CBaseAddress[Channel],ulSysClk,bFast);
    //I2CMasterIntDisable(ul32I2CBaseAddress[Channel]);
}
//  非阻塞忙判断
static bool BSP_I2CMasterBusyNoBlocking(tI2CChannel Channel)
{
    uint32_t usRepeat = 0u;

    //等待完成
    while(I2CMasterBusy(ul32I2CBaseAddress[Channel]) == (UINT8)true)
    {
        usRepeat++;
        if ((usRepeat) > 8000000u)
        {
            return false;
        }
    }

    return true;
}

//  错误检测
bool BSP_I2CErrorCheck(tI2CChannel Channel)
{
    uint32_t    status;
    // 等待完成
    if (BSP_I2CMasterBusyNoBlocking(Channel) == true)
    {
        // 读取错误
        status = I2CMasterErr(ul32I2CBaseAddress[Channel]);
        if (!status)
        {
            return true;
        }
    }

    return false;
}

bool    BSP_EepromWrite(tI2CChannel Channel, uint8_t ucSlaveAddr, uint16_t usChipAddr,uint8_t *pData, uint8_t ucLen)
{
    uint8_t ucIndex; 
    uint8_t Epstatus = EEPROM_OP_IDLE;
    uint32_t ulI2CCtrl;
    
    ulI2CCtrl = I2C_MASTER_CMD_BURST_SEND_START;
    while(Epstatus != EEPROM_OP_STOP)
    {
            switch(Epstatus)
            {
                case    EEPROM_OP_IDLE:
                    {//空闲状态,
                                                //向从机写数据
                        I2CMasterSlaveAddrSet(I2C0_BASE, ucSlaveAddr, false);
                                                //发送存储地址高8位
                        I2CMasterDataPut(I2C0_BASE, (usChipAddr >> 8));
                        I2CMasterControl(I2C0_BASE, ulI2CCtrl);// 起始位
                        if(!BSP_I2CErrorCheck(Channel))
                        {
                            return false;
                        }
                        Epstatus = EEPROM_OP_TXADDR;
                    }
                    break;
                case    EEPROM_OP_TXADDR:
                    {
                        ulI2CCtrl = I2C_MASTER_CMD_BURST_SEND_CONT;
                        I2CMasterDataPut(I2C0_BASE, (usChipAddr & 0xff));//发送存储地址低8位
                        I2CMasterControl(I2C0_BASE, ulI2CCtrl);
                        if(!BSP_I2CErrorCheck(Channel))
                        {
                            return false;
                        }
                        Epstatus = EEPROM_OP_TXDATA;
                    }
                    break;
                case EEPROM_OP_TXDATA:
                    {
                        ucIndex = 0;//发送数据
                        while(ucIndex < ucLen)
                        {
                            if(ucIndex == (ucLen - 1))
                            {
                                ulI2CCtrl = I2C_MASTER_CMD_BURST_SEND_FINISH;
                            }
                            else
                            {
                                ulI2CCtrl = I2C_MASTER_CMD_BURST_SEND_CONT;
                            }
                            
                            I2CMasterDataPut(I2C0_BASE, pData[ucIndex++]);
                            I2CMasterControl(I2C0_BASE, ulI2CCtrl);
                            if(!BSP_I2CErrorCheck(Channel))
                            {
                                return false;
                            }
                        }
                        Epstatus = EEPROM_OP_STOP;
                    }
                    break;
                    default:return false;
            }
    }
    
    return true;
    
}

bool    BSP_EepromRead(tI2CChannel Channel, uint8_t ucSlaveAddr, uint16_t usChipAddr,uint8_t *pData, uint8_t ucLen)
{
    uint8_t ucIndex;
    uint8_t Epstatus = EEPROM_OP_IDLE;
    
    while(Epstatus != EEPROM_OP_STOP)
    {
            switch(Epstatus)
            {
                case    EEPROM_OP_IDLE:
                    {
                        I2CMasterSlaveAddrSet(I2C0_BASE, ucSlaveAddr, false);
                        I2CMasterDataPut(I2C0_BASE, (usChipAddr >> 8));
                        I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_BURST_SEND_START);
                        if(!BSP_I2CErrorCheck(Channel))
                        {
                            return false;
                        }
                        Epstatus = EEPROM_OP_TXADDR;
                    }
                    break;
                case    EEPROM_OP_TXADDR:
                    {
                        I2CMasterDataPut(I2C0_BASE, (usChipAddr & 0xff));
                        I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_BURST_SEND_CONT);
                        if(!BSP_I2CErrorCheck(Channel))
                        {
                            return false;
                        }
                        Epstatus = EEPROM_OP_RXDATA;
                    }
                    break;
                case EEPROM_OP_RXDATA:
                    {
                        ucIndex = 0;
                        // 从机读出数据
                        I2CMasterSlaveAddrSet(I2C0_BASE, ucSlaveAddr, true);
                        if(ucLen == 1)
                        {
                            I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_SINGLE_RECEIVE);
                            if(!BSP_I2CErrorCheck(Channel))
                            {
                                return false;
                            }
                            pData[ucIndex++] = I2CMasterDataGet(I2C0_BASE);
                        }
                        else
                        {
                            I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_BURST_RECEIVE_START);//读起始位
                            if(!BSP_I2CErrorCheck(Channel))
                            {
                                return false;
                            }
                            pData[ucIndex++] = I2CMasterDataGet(I2C0_BASE);
                            while(ucIndex < ucLen)
                            {
                                if(ucIndex == (ucLen - 1))
                                {
                                    I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_BURST_RECEIVE_FINISH);
                                }
                                else
                                {
                                    I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_BURST_RECEIVE_CONT);
                                }
                                if(!BSP_I2CErrorCheck(Channel))
                                {
                                    return false;
                                }
                                pData[ucIndex++] = I2CMasterDataGet(I2C0_BASE);
                            }
                            Epstatus = EEPROM_OP_STOP;
                        }
                    }
                    break;
                    default:return false;
            }
    }
    
    return true;
}

void AT24C256Test(void)
{
    bool status;
    
        BSP_I2CMasterInit(g_tI2CChannel,g_tI2CCfg,false,ulSysClk);
        BSP_I2CMasterEnable(g_tI2CChannel,true);
        
        while(1)
       {
            status = BSP_EepromWrite(g_tI2CChannel,g_ucDevAddr,0x0000,g_EpromWriteData,10);
        if(status)
        {
        status = BSP_EepromRead(g_tI2CChannel,g_ucDevAddr,0x0000,g_EpromReadData,10);
        }
        SimpleDelay(2);
    }
}

现象描述:不能读/写EEPROM数据

波形上每次读写只能抓到一个字节,每帧第一个字节应该是从机地址及读写标志,但是读波形又不是从机地址0xA0,实在不清楚原因,特在此求助各位大神!