johnston@milton.u.washington.edu (Craig Johnston) (04/16/91)
I recently inherited a real time clock board for my PC compatiable
computer. The trouble is I don't have the software programs to read
and write the time from/to the board. The hardware on the board is
pretty simple, with just some address decoding circuitry, PIA, clock
chip, and a battery. I have identified the clock chip as a M5832 real
time clock. The trouble is I know nothing more than this. I would really
appreciate it if someone would be so kind as to mail me the specs. on how
to read and write the time for this chip. I have not been able to find any
write up on it in the hardware manuals I have access to. I think I can
determine the address that the board responds to by following the traces
through the decoding circuitry. If you know of some common addresses used
by clock cards I would also like to know about it.
I would really like to dispense with entering in the time and date each
time I boot my machine, but it looks like I've got a little work ahead of me.
(Actually my brain can hardly handle the strain of converting to military
style time. :-) )
Thanks for any help you can give me.
Craig Johnston johnston@milton.u.washington.edu
PS. I would have given more info on the type and make of clock board in hopes
that someone had the same one, but there is nothing written on the board
except "Made in China", and "CLOCK 01".