附上讀寫EEPROM的代碼

I2C_HandleTypeDef hi2c_eeprom;

void MX_I2C_EEPROM_Init(void)
{
  hi2c_eeprom.Instance             = EEPROM_I2Cx;
  hi2c_eeprom.Init.ClockSpeed      = I2C_SPEEDCLOCK;
  hi2c_eeprom.Init.DutyCycle       = I2C_DUTYCYCLE;
  hi2c_eeprom.Init.OwnAddress1     = 0;
  hi2c_eeprom.Init.AddressingMode  = I2C_ADDRESSINGMODE_7BIT;
  hi2c_eeprom.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
  hi2c_eeprom.Init.OwnAddress2     = 0;
  hi2c_eeprom.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
  hi2c_eeprom.Init.NoStretchMode   = I2C_NOSTRETCH_DISABLE;
  HAL_I2C_Init(&hi2c_eeprom);
}

void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
  GPIO_InitTypeDef GPIO_InitStruct;
  if(hi2c->Instance==EEPROM_I2Cx)
  {  

    EEPROM_I2C_RCC_CLK_ENABLE();        
    EEPROM_I2C_GPIO_CLK_ENABLE();
   
    /**I2C1 GPIO Configuration   
    PB6     ------> I2C1_SCL
    PB7     ------> I2C1_SDA
    */
    GPIO_InitStruct.Pin = EEPROM_I2C_SCL_PIN|EEPROM_I2C_SDA_PIN;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
    HAL_GPIO_Init(EEPROM_I2C_GPIO_PORT, &GPIO_InitStruct);
  }
}

void I2C_EEPROM_WriteByte(uint16_t Addr, uint8_t Reg, uint8_t Value)
{
  HAL_StatusTypeDef status = HAL_OK;
  
  status = HAL_I2C_Mem_Write(&hi2c_eeprom, Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, &Value, 1, I2cxTimeout);

  if(status != HAL_OK)
  {
    I2C_EEPROM_Error();
  }
}

uint8_t I2C_EEPROM_Readbyte(uint16_t Addr, uint8_t Reg)
{
  HAL_StatusTypeDef status = HAL_OK;
  uint8_t value = 0;
  
  status = HAL_I2C_Mem_Read(&hi2c_eeprom, Addr, Reg, I2C_MEMADD_SIZE_8BIT, &value, 1, I2cxTimeout);

  if(status != HAL_OK)
  {
    I2C_EEPROM_Error();
  }
  return value;
}