EEPW论坛

#include "eeprom.h"

/*
 * The user must implement the three extern-declared functions below
 * in order for the compiler to be able to automatically write to the
 * EEPROM memory when __eeprom variables are assigned to.
 */


/*
 * Wait for the last data EEPROM operation to finish.  Return 0 if the
 * operation failed, otherwise non-zero.  You may want to handle
 * errors here, since the utility functions below simply ignore
 * errors, aborting multi-write operations early.
 */
int eeprom_wait_for_last_operation(void)
{
  FLASH_Status_TypeDef status = FLASH_WaitForLastOperation(FLASH_MemType_Data);
  return !!(status & (  FLASH_Status_Successful_Operation));
}

/*
 * Write one byte to the data EEPROM memory.
 */
void eeprom_program_byte(unsigned char __near * dst, unsigned char v)
{
  FLASH_ProgramByte((u32)dst, (u8)v);
}

/*
 * Write one 4-byte long word to the data EEPROM memory.  The address
 * must be 4-byte aligned.
 */
void eeprom_program_long(unsigned char __near * dst, unsigned long v)
{
  FLASH_ProgramWord((u32)dst, (u32)v);
}

void eeprom_init(void)
{
  
  
}

/**************************************************************************
 * 函数名：eeprom_BufferWrite
 * 描述  ：使用字节写命令写多个字节的数据到EEPROM
 * 输入  ：- pBuffer：指向要写入EEPROM中的数据的指针
 *         - WriteAddr：将写入的EEPROM的地址
 *         - NumByteToWrite：要写入EEPROM的字节数
 * 调用  ：外部调用 
 *************************************************************************/
void eeprom_BufferWrite(u8* pBuffer, u32 WriteAddr, u16 NumByteToWrite)
{

  while (NumByteToWrite--) /* 计数 */
  {   
    FLASH_ProgramByte((uint32_t)WriteAddr,(uint8_t)*pBuffer);  
    pBuffer++;
    WriteAddr++;

  }
  

}
/*******************************************************************************
* 函数名  : eeprom_BufferRead
* 描述    : 从FLASH读取NumByteToRead字节的数据.
* 输入          : - pBuffer : 存放从FLASH读取的数据的缓冲区的指针
*                  - ReadAddr : 从FLASH的该地址处读数据
*                  - NumByteToRead : 要读取的字节数
*******************************************************************************/
void eeprom_BufferRead(u8* pBuffer, u32 ReadAddr, u16 NumByteToRead)
{
  while (NumByteToRead--) /* 计数 */
  {
    /* 读一个字节的数据 */
    *pBuffer = FLASH_ReadByte(ReadAddr);
    pBuffer++;
    ReadAddr++;
  }
}