標題: STM8L051F3寄存器版EEPROM源程序 [打印本頁]
作者: 閑散子    時間: 2019-3-10 18:14
標題: STM8L051F3寄存器版EEPROM源程序
#include "Config.h"
u8      Eeprom_text     =       0;

void EEPROM_write(unsigned char addr, unsigned char dat)
{
   u8 *Ptr_SegAddr; //Segment pointer

   Ptr_SegAddr = (u8 *)(EP_HEADER_ADDR+addr);  //Initialize  pointer

   FLASH_DUKR=0xAE;

   FLASH_DUKR=0x56;

   while(!FLASH_IAPSR_DUL);//如果DUL沒有置位,說明解鎖不成功,最好加入超時判斷

   asm("sim");//關閉中斷

   *Ptr_SegAddr=dat; //指定地址，寫1 字節(jié)

   while(!FLASH_IAPSR_EOP);//等待寫操作完成,最好加入超時判斷

   asm("rim");//打開中斷

   FLASH_IAPSR_DUL=0;//上鎖,對DATA EEPROM寫保護

   ////////////////////

}

//EEPROM指定地址讀出一個數據 addr:相對地址
unsigned char EEPROM_read(unsigned char addr)
{
   uint16_t Data=0;

   uint8_t *Ptr_SegAddr;

   Ptr_SegAddr = (uint8_t *)(EP_HEADER_ADDR+addr);  //Initialize  pointer

   Data=*Ptr_SegAddr;

   return Data;
}





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