关于STM32L1系列内部EEPROM存储数据代码

只看该作者 · 2016-1-13 14:54

前几天一直再寻找STM32L1系列内部EEPROM存储数据程序，用FLASH模拟EEPROM太复杂了，正合适选择的系列有内部eeprom，和大家分享一下，已经测试过的。
#include "stm32l1xx.h"
#include "main.h"

#define EEPROM_BASE_ADDR 0x08080000
//#define EEPROM_BYTE_SIZE 0x0FFF
void Eeprom_Write_Byte(u32 Start_Address,u8 Data_Value);
u8 Eeprom_Read_Byte(u32 Read_Address);

void Eeprom_Write_Byte(u32 Start_Address,u8 Data_Value)
{

u32 Address =0;
Address = EEPROM_BASE_ADDR+Start_Address;
if(IS_FLASH_DATA_ADDRESS(Address))
{
   DATA_EEPROM_Unlock();  //设备解锁
   while(FLASH_GetStatus()!=FLASH_COMPLETE);
   DATA_EEPROM_ProgramByte(Address,Data_Value);
   DATA_EEPROM_Lock();//设备上锁
}
}

u8 Eeprom_Read_Byte(u32 Read_Address)
{
u32 Address =0;
Address = EEPROM_BASE_ADDR+Read_Address;
u8 tmp=0;
if(IS_FLASH_DATA_ADDRESS(Address))
{

      DATA_EEPROM_Unlock();  //设备解锁
      while(FLASH_GetStatus()==FLASH_BUSY);
      tmp=*(__IO uint8_t*)Address;
      DATA_EEPROM_Lock();//设备上锁
}
return tmp;
}