The example of EEPROM Emulation doesn't work

[rozehtiyan]

Posted on November 26, 2014 at 15:38

Hi folk

I'm working on the example of EEPROM Emulation that I have downloaded here: http://www.st.com/web/en/catalog/tools/PF257846 the main.c is this:

/**
******************************************************************************
* @file EEPROM_Emulation/src/main.c 
* @author MCD Application Team
* @version V3.1.0
* @date 07/27/2009
* @brief Main program body
******************************************************************************
* @copy
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* <h2><center>© COPYRIGHT 2009 STMicroelectronics</center></h2>
*/
/** @addtogroup EEPROM_Emulation
* @{
*/
/* Includes ------------------------------------------------------------------*/
#include ''eeprom.h''
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
ErrorStatus HSEStartUpStatus;
FLASH_Status FlashStatus;
uint16_t VarValue = 0;
/* Virtual address defined by the user: 0xFFFF value is prohibited */
uint16_t VirtAddVarTab[NumbOfVar] = {0x5555, 0x6666, 0x7777};
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program.
* @param None
* @retval None
*/
int
main(
void
)
{
/* Setup STM32 system (clock, PLL and Flash configuration) */
SystemInit();
/* Unlock the Flash Program Erase controller */
FLASH_Unlock();
/* EEPROM Init */
EE_Init();
/* --- Store successively many values of the three variables in the EEPROM ---*/
/* Store 1000 values of Variable1 in EEPROM */
for
(VarValue = 0; VarValue < 1000; VarValue++)
{
EE_WriteVariable(VirtAddVarTab[0], VarValue);
}
/* Store 500 values of Variable2 in EEPROM */
for
(VarValue = 0; VarValue < 500; VarValue++)
{
EE_WriteVariable(VirtAddVarTab[1], VarValue);
}
/* Store 800 values of Variable3 in EEPROM */
for
(VarValue = 0; VarValue < 800; VarValue++)
{
EE_WriteVariable(VirtAddVarTab[2], VarValue);
}
while
(1);
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void
assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf(''Wrong parameters value: file %s on line %d\r\n'', file, line) */
/* Infinite loop */
while
(1)
{}
}
#endif
/**
* @}
*/
/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/

the eeprom.h is this:

/**
******************************************************************************
* @file EEPROM_Emulation/inc/eeprom.h 
* @author MCD Application Team
* @version V3.1.0
* @date 07/27/2009
* @brief This file contains all the functions prototypes for the EEPROM 
* emulation firmware library.
******************************************************************************
* @copy
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* <h2><center>© COPYRIGHT 2009 STMicroelectronics</center></h2>
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __EEPROM_H
#define __EEPROM_H
/* Includes ------------------------------------------------------------------*/
#include ''stm32f10x.h''
/* Exported constants --------------------------------------------------------*/
/* Define the STM32F10Xxx Flash page size depending on the used STM32 device */
#if defined (STM32F10X_LD) || defined (STM32F10X_MD)
#define PAGE_SIZE (uint16_t)0x400 /* Page size = 1KByte */
#elif defined (STM32F10X_HD) || defined (STM32F10X_CL)
#define PAGE_SIZE (uint16_t)0x800 /* Page size = 2KByte */
#endif
/* EEPROM start address in Flash */
#define EEPROM_START_ADDRESS ((uint32_t)0x08010000) /* EEPROM emulation start address:
after 64KByte of used Flash memory */
/* Pages 0 and 1 base and end addresses */
#define PAGE0_BASE_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + 0x000))
#define PAGE0_END_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + (PAGE_SIZE - 1)))
#define PAGE1_BASE_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + PAGE_SIZE))
#define PAGE1_END_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + (2 * PAGE_SIZE - 1)))
/* Used Flash pages for EEPROM emulation */
#define PAGE0 ((uint16_t)0x0000)
#define PAGE1 ((uint16_t)0x0001)
/* No valid page define */
#define NO_VALID_PAGE ((uint16_t)0x00AB)
/* Page status definitions */
#define ERASED ((uint16_t)0xFFFF) /* PAGE is empty */
#define RECEIVE_DATA ((uint16_t)0xEEEE) /* PAGE is marked to receive data */
#define VALID_PAGE ((uint16_t)0x0000) /* PAGE containing valid data */
/* Valid pages in read and write defines */
#define READ_FROM_VALID_PAGE ((uint8_t)0x00)
#define WRITE_IN_VALID_PAGE ((uint8_t)0x01)
/* Page full define */
#define PAGE_FULL ((uint8_t)0x80)
/* Variables' number */
#define NumbOfVar ((uint8_t)0x03)
/* Exported types ------------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
uint16_t EE_Init(
void
);
uint16_t EE_ReadVariable(uint16_t VirtAddress, uint16_t* Data);
uint16_t EE_WriteVariable(uint16_t VirtAddress, uint16_t Data);
#endif /* __EEPROM_H */
/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/

As you can see, the EEPROM start address in Flash is:

#define EEPROM_START_ADDRESS ((uint32_t)0x08010000) /* EEPROM emulation start address: after 64KByte of used Flash memory */

then 0x08010000 is the start address. after compiling the program and downloading it, I execute it in debug and even without debugger but after I referred to 0x08010000 of the flash memory (by reading the flash memory through debugger), I just can see: FFFFFFFF.... where am I wrong? #stm32f103 #eeprom-flash-emulation