using i2c with cmsis libraries

hi
im using lpc1768 to communicate with mpu6050 and i have some problems with i2c protocol and im not sure what it is about.
actually i cant send and receive any data.i put my codes below and the first part is setting of i2c and the second part is my code to send data.

 * Init I2C pin connect
        */
        PinCfg.OpenDrain = 0;
        PinCfg.Pinmode = 0;
        PinCfg.Funcnum = 1;
        PinCfg.Pinnum = 27;
        PinCfg.Portnum = 0;
        PINSEL_ConfigPin(&PinCfg1);//SDA0
        PinCfg.Pinnum = 28;
        PINSEL_ConfigPin(&PinCfg1);//SCL0

        // Initialize I2C peripheral
        I2C_Init(LPC_I2C0, 10000);

        /* Configure interrupt for I2C in NVIC of ARM core */
    /* Disable I2C0 interrupt */
    NVIC_DisableIRQ(I2C0_IRQn);
    /* preemption = 1, sub-priority = 0 */
    NVIC_SetPriority(I2C0_IRQn, ((0x01<<3)|0x01));


        /* Enable I2C operation */
        I2C_Cmd(LPC_I2C0, ENABLE);

second part :

txsetup.sl_addr7bit = 0xA0;
        txsetup.tx_data = &BusAddres;
        txsetup.tx_length = 8;

        txsetup.retransmissions_max = 3;
I2C_MasterTransferData(LPC_I2C0,&txsetup, I2C_TRANSFER_POLLING);
        txsetup.tx_data = &Reg;
I2C_MasterTransferData(LPC_I2C0,&txsetup, I2C_TRANSFER_POLLING);
txsetup.tx_data = &Data;
I2C_MasterTransferData(LPC_I2C0,&txsetup, I2C_TRANSFER_POLLING);

thank u all..