text: /**
    ******************************************************************************
    * @file    stm8s_eeprom.c
    * @author  WI6LABS
    * @version V1.0.0
    * @date    16-September-2016
    * @brief   provide emulated eeprom from flash
    *
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
    *
    * Redistribution and use in source and binary forms, with or without modification,
    * are permitted provided that the following conditions are met:
    *   1. Redistributions of source code must retain the above copyright notice,
    *      this list of conditions and the following disclaimer.
    *   2. Redistributions in binary form must reproduce the above copyright notice,
    *      this list of conditions and the following disclaimer in the documentation
    *      and/or other materials provided with the distribution.
    *   3. Neither the name of STMicroelectronics nor the names of its contributors
    *      may be used to endorse or promote products derived from this software
    *      without specific prior written permission.
    *
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
    * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
    * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    *
    ******************************************************************************
    */
  
  #include "stm8_eeprom.h"
  #include <string.h>
  
  #ifdef __cplusplus
  extern "C"
  {
  #endif
  
  /**
    * @brief  Function read a byte from eeprom
    * @param  __p : address to read
    * @retval byte : data read from eeprom
    */
  #if defined(STM8Sxx)
    uint8_t eeprom_read_byte(const uint16_t __p)
    {
      return FLASH_ReadByte((uint32_t)(FLASH_DATA_START_PHYSICAL_ADDRESS + __p));
      ;
    }
  
    /**
    * @brief  Function write a byte to eeprom
    * @param  __p : address to write
    * @param  __value : value to write
    * @retval none
    */
    void eeprom_write_byte(uint16_t __p, uint8_t __value)
    {
      FLASH_Unlock(FLASH_MEMTYPE_DATA);
      FLASH_ProgramByte((uint32_t)(FLASH_DATA_START_PHYSICAL_ADDRESS + __p), __value);
      FLASH_Lock(FLASH_MEMTYPE_DATA);
    }
  
  #elif defined(STM8Lxx)
  uint8_t eeprom_read_byte(const uint16_t __p)
  {
    return FLASH_ReadByte((uint32_t)(FLASH_DATA_EEPROM_START_PHYSICAL_ADDRESS + __p));
    ;
  }
  
  /**
    * @brief  Function write a byte to eeprom
    * @param  __p : address to write
    * @param  __value : value to write
    * @retval none
    */
  void eeprom_write_byte(uint16_t __p, uint8_t __value)
  {
    FLASH_Unlock(FLASH_MemType_Data);
    FLASH_ProgramByte((uint32_t)(FLASH_DATA_EEPROM_START_PHYSICAL_ADDRESS + __p), __value);
    FLASH_Lock(FLASH_MemType_Data);
  }
  #endif
  
  #ifdef __cplusplus
  }
  #endif
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  