按说明书编了怎么不行

2万 · 2015-7-4 09:31

请提供一下79F1611的内部EEPROM读写的C程序.按说明书编了怎么不行,求指教:
uchar EEPROM_read(uchar read_page,uchar read_address)
{
      uchar tt0;
      EA = 0;
      FLASHCON = 1;
      XPAGE = read_page;
      IB_OFFSET = read_address;
      _nop_();
      _nop_();
      _nop_();
      _nop_();
      tt0 = *(unsigned char code *)(read_address);
      XPAGE = 0;
      FLASHCON = 0;
      EA = 1;
      return tt0;
}
void EEPROM_erase(uchar write_page)
{
      EA = 0;
      FLASHCON = 1;
      XPAGE = write_page;
      IB_CON1 = 0xE6;
      IB_CON2 = 0x05;
      IB_CON3 = 0x0A;
      IB_CON4 = 0x09;
      IB_CON5 = 0x06;
      _nop_();
      _nop_();
      _nop_();
      _nop_();
}

void EEPROM_write(uchar write_page,uchar write_address,uchar write_data)
{
      EEPROM_erase(write_page);
      XPAGE = write_page;
      IB_OFFSET = write_address;
      IB_DATA = write_data;
      IB_CON1 = 0x6E;
      IB_CON2 = 0x05;
      IB_CON3 = 0x0A;
      IB_CON4 = 0x09;
      IB_CON5 = 0x06;
      _nop_();
      _nop_();
      _nop_();
      _nop_();
      XPAGE = 0;
      FLASHCON = 0;
      EA = 1;
}