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echo: cis.telecommunications
to: Pete Lyall 76703,4230
from: Paul Rinear 73757,1413
date: 1991-11-08 20:22:30
subject: #12939-Quick-B Problems

#: 12941 S7/Telecommunications
    08-Nov-91  20:22:30
Sb: #12939-Quick-B Problems
Fm: Paul Rinear 73757,1413
To: Pete Lyall 76703,4230

      The problem with the loss of Disk Basic was that when I had the MPI
apart, one of the little wires from the upgrade board fell off. I cleaned all
the contacts with an eraser anyway.
      Very interesting about an IRQ coming down the line during boot. This just
might happen. Anyway, I got your hack to work, but instead of opening up each
serial port cartridge I have and soldering a little wire to the IRQ of the
6551, I soldered the wire into the multipak pin 8 (which are all wired
together). This seemed like a timesaver since I have serial ports in 3 slots. I
cut the trace going out of the multipak on pin 8 so that the 6809 doesn't get
two messages about one interrupt. Seems to work so far. Am going to error test
it on some large file downloads from a local BBS while simultaneously playing
with a remote terminal.
                                                     Paul

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