[HECnet] RSX-11 setback

[John Wilson]

From: Cory Smelosky <b4 at gewt.net>

I PROBABLY have a PIC around here somewhere...but I don't know where and I 
know I DEFINTIELY don't have a crystal of that frequency.

Then you just need a longer loop.

I have an 
arduino that I SUPPOSE could be hacked to work.

I'm sure it could -- maybe add a 2N7000 or something as the driver since
I think it's officialy an open-collector line (although I could be wrong and
anyway since it's not shared, it probably doesn't matter much).

Does the bus itself need any special configuration?

I can't think what this would mean.   Just ground the "event" line every
50th/60th and you're golden.   The Q22 mod was surprisingly easy too (since
there were only four slots, with wire-wrap connectors).   If the power supply
hadn't later done what all power supplies eventually do, I'd still be running
that box...

I DO have the front 
panel with an LTC from the NETCOM I can borrow for awhile (No need for it 
until I patch ZRQCH0.

Yeah bringing it in from another box should be OK as long as everyone
agrees about ground reference.

John Wilson
D Bit