I've modified eeprog so that -8 and -16 can be selected. 8bit mode is now the default (thanks to Jean for the suggestion). It's definitely safer. download link: http://codesink.org/download/eeprog-0.7.5.tar.gz please update, thanks. stefano On Friday 28 November 2003 19:23, Jean Delvare wrote: > > __________________________________WARNING____________________________ > > ___ Erroneously writing to a system EEPROM (like DIMM SPD modules) can > > brake your system. It will NOT boot any more so you'll not be able to > > fix it. > > It's "break", not "brake" (also in some way I agree it does too ;)). > And "any more" is "anymore". > > > Reading from 8bit EEPROMs (like that in your DIMM) without using the > > -8 switch can also UNEXPECTEDLY write to them, so be sure to use the > > -8 command param when required. > > Wouldn't it be safer to default to 8-bit and have a switch to use > 16-bit addressing? From what you said, "reading from an 8bit eeprom > using 16bit addressing can actually *write* to the eeprom", but what > would reading a 16-bit eeprom using 8-bit addressing do? If it isn't > dangerous, I believe you should default to 8-bit addressing. > > BTW, isn't it possible to detect the addressing mode?