Eric Smith wrote:
If a schematic isn't available, but a unit was made available on loan to
reverse-engineer, I'd be willing to do it.
At this stage, it appears that no original schematic for this board has been uncovered.
Efforts are currently underway to reverse-engineer an actual TSC8-75 board and derive a
useful schematic. It is hopeful there will be something available relatively soon.
The particular board being reverse-engineered has a serial number of <700, so it will
not have the ESME IOT implemented, but it has been discovered that ETOS does not require
this IOT in order to run properly. ETOS will run slightly more efficiently if the board
supports the ESME IOT (6365), but it will still run just fine on the boards that don't
have the feature.
I'll try to post updates here as the project progresses.
It is my hope to be able to construct a functional equivalent of one of these boards, and
get ETOS running on my physical 8/e system. The biggest challenge is going to be
replacing the pesky SP380A (12 used on the board) and SP314A (one used on the board) chips
used for Omnibus interface, but there's a lot of discussion in the mailing list
archives about replacements that seem to work , so it shouldn't be too difficult.
-Rick