This is it more or less. Another 15 to 30 minutes to fill in the
blanks. QB has an ON TIMER(n) GOSUB UpdatesScreen .... hard ware,
real time interrupt. n is the number of seconds. For updating the
screen every one or two seconds is about right.

Actully updating the screen only takes a few usec. The rest of the
time the computer is doing EFI stuff.

Here are some shots of the computer. The mother board is mounted on
a .125 inch thick plate with the 3.5" floppy and hard drive are
bolted to the bottom. Everything fits in about a seven inch cube.
Very rugged chassis.

Paul Lamar


This looks pretty sweet dude.  Nice work.  How do you plan to test it?
How do you plan to isolate the assembly from vibration?

Is the HD going to be part of the final assembly.  They don't have much
of a sense of humor when it comes to vibration.  I assume the HD is
there to record EFI data in flight for later analysis.

-  Mark LaPierre

I'll mount the whole cube on vibration isolators.

There are some USB drivers out there for DOS. I haven't got one working
so far but if I do I can use a 4 gig thumb drive instead of the hard drive.
Paul Lamar


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