Simon Fryer wrote:
G'day,
On 4 March 2010 05:19, Brian Lanning <brianlanning at gmail.com> wrote:
[ISA Bus Extender for Maintenance / Debugging]
Desoldered the female ISA connector, then
soldered it to the underside of a
passive backplane. Would I have goofy reliability problems? Would it even
work?
AFAIK, the ISA bus works sufficiently slowly that it doesn't need to
be treated like a transmission line. So, if it does work, it probably
will.
Yes, IME it seems to accept a lot of abuse without problems (I remember
building a "poor man's X terminal" once into a case about 30cm high using
stock PC hardware and net-booting Linux - I employed some creative cutting of
an ISA extender, removing unecessary sockets and PCB to reduce height, so that
I could run the video and network boards parallel to the motherboard)
It's probably slow enough (8MHz, IIRC) that Brian could even use shielded
ribbon cable to connect his motherboard to his backplane and it'd still work -
although perhaps such a permanent solution isn't what he's after.
cheers
Jules