有谁会88F4051读写EEPROM的程序。

2万 · 2011-12-17 16:57

2万 · 2011-12-17 17:08

没用过，帮顶

2万 · 2011-12-17 17:16

可以到代码区找找

2万 · 2011-12-17 17:18

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);

}