/**************************************************************************************************
* @fn          HalSensorReadReg
*
* @brief       This function implements the I2C protocol to read from a sensor. The sensor must
*              be selected before this routine is called.
*
* @param       addr - which register to read
* @param       pBuf - pointer to buffer to place data
* @param       nBytes - numbver of bytes to read
*
* @return      TRUE if the required number of bytes are reveived
**************************************************************************************************/
bool HalSensorReadReg(uint8 addr, uint8 *pBuf, uint8 nBytes)
{
  uint8 i = 0;

  /* Send address we're reading from */
  if (HalI2CWrite(1,&addr) == 1)
  {
    /* Now read data */
    i = HalI2CRead(nBytes,pBuf);
  }

  return i == nBytes;
}


第一张图是eeprom的读操作，然后上面的代码是TI 协议栈里的sensor的.  然后我看了下代码，里面的i2c时序和eeprom里datesheet的时序不一样。

TI显示的i2c时序是：
   START -> device_write->write_byte_address->STOP    START  -> device_read ->data_out -> NACK -> STOPeeprom 的datesheet显示的i2c时序是：   START -> device_write->write_byte_address->write_byte_address->    START  -> device_read ->data_out -> NACK -> STOP2者的区别就是在read操作时，先要写一个byte地址（从哪开始读），TI是写完byte地址后STOP然后重新START而eeprom  datesheet里显示的是写完byte地址后，没有STOP,直接重新START.

so i think it should be START  ....  START ..... STOPbut it's                START........STOP.......START.......STOP.所以希望有能人异士给我解答下，应该如果下手。