6 Jul
2014
6 Jul
'14
6:18 a.m.
On Jul 5, 2014, at 19:11, Ian McLaughlin <ian at platinum.net> wrote:
This is really tough because I don't have a schematic for the memory board. Are
there any S100 experts that could point me in a direction to start looking? Port I/O is
working (to the serial port as well as to the bank select port). Memory read appears to
work, because I get values that are consistent (the RAM will sometimes boot up with random
values, and the random value will stay that way in that memory location until I attempt to
write anything to it, then it goes FF). It appears to be a write issue.
I'm not an S100 expert by any means, but I should point
out that besides the ones here, there are a number of S100
folks on the MARCH list (midatlanticretro on Yahoo! groups).
- Dave