30 Dec
2005
30 Dec
'05
4:07 a.m.
On 12/29/2005 at 6:31 PM Scott Stevens wrote:
Some of us are just more stubborn and cheap (and
whatnot else)
than others. I like solutions that I know I will be able to use
for the next 25 years. I don't know how long Dallas will
continue to make the DS1285. And I have encountered motherboards
where the CMOS module is SOLDERED ON THE MOTHERBOARD (*yikes*).
Scott, the Compaq SLT 286 is one of those. :) (and of course, on modern
mobos, the CMOS and clock is buried somewhere on a corner of one of the
support chips, which is soldered in).
If you're really bored, you can try digging into a DS1287, like this guy:
http://perso.wanadoo.fr/dsavel/ds1287e.htm
Suprise, suprise, he found a 1285 inside!
Another alternative is to use an MC 146818A and external battery and
resonator.
Cheers,
Chuck