AW: [OpenBIOS] OT: Bios access speeds
Stephan Müller
stephan_mueller at gmx.net
Fri Apr 30 13:22:17 CEST 1999
> After I reread your message, I figured that was what you were asking. But
> here's my question, I guess: what do you mean, "We can just wire the
> signals from the ISA bus." How can you just pick what signal
> wires you use?
> If the BIOS needs line x, you need to give it x! And if the BIOS signal
> wires are already using ISA bus signal lines, then why would you
> have had a
> question about how fast the CPU access the BIOS? In that case, the access
> speed to the BIOS would *have* to be ISA bus speeds!
>
> Of course, my understanding is not relevant to the working of
> your circuit.
> If you don't feel like wasting your time on my understanding, I would
> understand. ;)
You can take a small ISA-prototype-card and a address-decoder (e.g.
74HC245).
With these 2 things you can connect a flash/eprom/prom/whatever to a
specific
location in the system-memory (first 16meg, i think on isa-bus)
ciao,
stephan
-
To Unsubscribe: send mail to majordomo at freiburg.linux.de
with "unsubscribe openbios" in the body of the message
More information about the openbios
mailing list