11 Jun
2004
11 Jun
'04
8:28 p.m.
On Sat, Jun 12, 2004 at 01:24:37AM -0500, ghldbrd(a)ccp.com wrote:
Outside of finding the original firmware coding, you
might be just hosed,
which is a shame. That was very desireable as an Amiga accesory as ISTR
it would run Win 3.1 with some degree of speed. Far better than the
8088/286/386SX Commodore bridgeboards.
The Golden Gate II Bridgeboard was the original product name for the GG2 Bus+
that I make. I bought the designs when the inventor graduated from college
and moved to Japan. It's a bus adapter, not a PC-on-a-card like the C= A2088
boards, etc. It doesn't run DOS/Windows, it maps ISA cards into Zorro space
for AmigaDOS drivers to access - small IDE drives, several flavors of Ethernet,
serial and printer ports, primarily, but it's possible to talk to a variety
of non-DMA cards with it. Someone once ran an FM tuner card via a DOS
emulator... the emulator mapped 80x86 I/O instructions into 680x0 memory
access instructions at the right place in memory for the DOS programs to
hit the hardware. There's also good xBSD support for the GG2 Bus+.
It's not firmware that he lacks - it's logic equations/a fuse map for the
four GALs, three 16V8s and one 22V10. They provide some of the logic for
translating ISA bus signals to/from Zorro II bus signals, and, equally
importantly, the logic for emulating a nybble-wide ROM so that AUTOCONFIG
can detect and classify the card. No AUTOCONFIG means that the card won't
appear in 16-bit Zorro space.
-ethan
--
Ethan Dicks, A-130-S Current South Pole Weather at 12-Jun-2004 08:20 Z
South Pole Station
PSC 468 Box 400 Temp -69.7 F (-56.5 C) Windchill -111.6 F (-79.8 C)
APO AP 96598 Wind 15.5 kts Grid 044 Barometer 680.4 mb (10611. ft)
Ethan.Dicks(a)amanda.spole.gov http://penguincentral.com/penguincentral.html