Stm_common/stm32 通用函数/Common/FlashEE.h

/*******************************************************************************
* File Name          : FLASH_EE.h
* Author             : MCD Application Team
* Description        : This file contains all the functions prototypes for the
*                      EEPROM emulation firmware library.
*******************************************************************************/

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef _FLASHEE_H
#define _FLASHEE_H

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_conf.h"
#include "EE_Dataset.h"

/* Exported constants --------------------------------------------------------*/
/* EEPROM start address in Flash */
//128k的最后2k，stm32F103CB 有128k，(共128页，每页1k)
#define EEPROM_START_ADDRESS    ((unsigned int)(0x08000000+(128-2)*1024)) /* EEPROM emulation start address:*/

/* Pages 0 and 1 base and end addresses */
#define PAGE0_BASE_ADDRESS      ((unsigned int)(EEPROM_START_ADDRESS + 0x000))
#define PAGE0_END_ADDRESS       ((unsigned int)(EEPROM_START_ADDRESS + (PAGE_SIZE - 1)))

#define PAGE1_BASE_ADDRESS      ((unsigned int)(EEPROM_START_ADDRESS + PAGE_SIZE))
#define PAGE1_END_ADDRESS       ((unsigned int)(EEPROM_START_ADDRESS + (2 * PAGE_SIZE - 1)))

/* Used Flash pages for EEPROM emulation */
#define PAGE0                   ((unsigned short)0x0000)
#define PAGE1                   ((unsigned short)0x0001)

/* No valid page define */
#define NO_VALID_PAGE           ((unsigned short)0x00AB)

/* Page status definitions */
#define ERASED                  ((unsigned short)0xFFFF)     /* PAGE is empty */
#define RECEIVE_DATA            ((unsigned short)0xEEEE)     /* PAGE is marked to receive data */
#define VALID_PAGE              ((unsigned short)0x0000)     /* PAGE containing valid data */

/* Valid pages in read and write defines */
#define READ_FROM_VALID_PAGE    ((char)0x00)
#define WRITE_IN_VALID_PAGE     ((char)0x01)

/* Page full define */
#define PAGE_FULL               ((char)0x80)

/* Variables' number */
//#define NumbOfVar               (char)(sizeof(tPrg) * 6)  /* DNJ - Since we have 6 programs to store, this variable is no more char ! */
#define NumbOfVar               (unsigned short)(sizeof(SysPara)/2)

/* Exported types ------------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
unsigned short EE_Init ( void );
unsigned short EE_ReadVariable ( unsigned short, unsigned short* );
unsigned short EE_WriteVariable ( unsigned short, unsigned short );
void EE_XX ( void );

#endif