没有驱动EEPROM的，给你个TWI驱动，你自己按照EEPROM时序自己改改吧。

/****************************************************************************
* 名称 ： Reset_TWI
* 功能 ： 复位 TWI接口
* 入口参数 ：无
* 返回值 ：无
****************************************************************************/
void Reset_TWI(void)
{
     //RESET_TWI CONTROLLER
*pTWI_CONTROL = RESET_TWI;
ssync();

//CLEAR ALL ERRONOUS CONDITIONS BEFORE ENABLING TWI
*pTWI_MASTER_STAT = BUFWRERR | BUFRDERR | LOSTARB | ANAK | DNAK;
ssync();

//CLEAR ALL INTERRUPTS BEFORE ENABLING TWI
*pTWI_INT_STAT = SINIT | SCOMP | SERR | SOVF | MCOMP | MERR | XMTSERV | RCVSERV;
ssync();

//FLUSH THE FIFOs - BOTH TX AND RX.
*pTWI_FIFO_CTL = XMTFLUSH | RCVFLUSH;
ssync();
}

/****************************************************************************
* 名称 ： TWI_MasterMode_Write
* 功能 ： TWI接口写数据
* 入口参数 ：无
* 返回值 ：无
****************************************************************************/
void TWI_MasterMode_Write(unsigned short DeviceAddr, unsigned short *TWI_Data_Pointer, unsigned short TX_Count, unsigned short TWI_TX_Length)
{
int i, j;
//FLUSH THE FIFOs - BOTH TX AND RX.
*pTWI_FIFO_CTL = XMTFLUSH | RCVFLUSH;
ssync();

*pTWI_MASTER_STAT = BUFWRERR | BUFRDERR | LOSTARB | ANAK | DNAK;
ssync();

    *pTWI_FIFO_CTL = 0;     // Clear the bit manually
*pTWI_CONTROL = TWI_ENA | PRESCALE_VALUE; // PRESCALE = fsclk/10MHz
*pTWI_CLKDIV = ((CLKDIV_HI) << 8) | (CLKDIV_LO);      // For 100KHz SCL speed: CLKDIV = (1/100KHz)/(1/10MHz) = 100 -> SCL symetric: CLKHI = 50, CLKLOW = 50
*pTWI_MASTER_ADDR = DeviceAddr;   // Target address (7-bits plus the read/write bit the TWI controls
for (i = 0; i < TX_Count; i++)
{
  delay();
     // # of configurations to send to the sensor
  *pTWI_XMT_DATA8 = *TWI_Data_Pointer++;  // Pointer to an array and load a value where a list of data is located
  *pTWI_MASTER_CTL = (TWI_TX_Length<<6) | MEN;// | FAST;      // Start transmission
  for (j = 0; j < (TWI_TX_Length-1); j++)
  {
    // # of transfers before stop condition
   while (*pTWI_FIFO_STAT == XMTSTAT)     // wait to load the next sample into the TX FIFO
    ssync();

   *pTWI_XMT_DATA8 = *TWI_Data_Pointer++;  // Load the next sample into the TX FIFO. Pointer to an array where a list of data is located
   ssync();
  }
    
  while ((*pTWI_INT_STAT & MCOMP) == 0)    // Wait until transmission complete and MCOMP is set
   ssync();
  
  *pTWI_INT_STAT = XMTSERV | MCOMP;     // service TWI for next transmission
  delay();
}
asm("nop;");
asm("nop;");
asm("nop;");

}

TWI_TX_Length参数是每次传输多少个字节，比如每次传输，一个寄存器地址，一个数据，那么该值为2.即每次传输两个byte。

TX_Count是传输次数，如你写10个寄存器，每个寄存器写两次（地址和数据），那么TX_Count值就是10，TWI_TX_Length就是2。