有谁会88F4051读写EEPROM的程序

2万 · 2022-7-9 17:53

1万 · 2022-7-9 17:55

没用过，帮顶

1万 · 2022-7-9 17:58

可以到代码区找找

1万 · 2022-7-9 18:02

uint16 ReadEEPData(uint8 *ptr)
{
uint8 i,j;
uint16 addr;
uint8 curBlock[EEP_SAVE_BYTE];
uint8 *bkDP;
bit bkEA = EA;
bit bWrited;

   EA = 0;
   FLASHCON = 1;

   bkDP = ptr;
   for(i=0; i<EEP_SAVE_BYTE; i++)
   {
      *ptr =0;
      ptr++;
   }

   addr =EEP_SECTOR_USE;
   j = 0;
   for(i=0; i<EEP_SAVE_TIMES; i++)
   {
      bWrited = 0;
      ptr = bkDP;
      for(j=0; j<EEP_SAVE_BYTE; j++)
      {
            curBlock[j] = CBYTE[addr];
            addr++;
            if(curBlock[j]) bWrited = 1;
      }
      if(bWrited)
      {
            for(j=0; j<EEP_SAVE_BYTE; j++)
            {
               *ptr = curBlock[j];
               ptr++;
            }
      }
      else
      {
            break;
      }
   }

   if(i == EEP_SAVE_TIMES)
   {
      EraseEEPSector(EEP_SECTOR_USE);
      i = 0;
      addr = EEP_SECTOR_USE;
   }
   else
   {
      addr -= EEP_SAVE_BYTE;
   }

   FLASHCON = 0;
   EA = bkEA;

   return(addr);

}