On Tue, 13 Apr 2010, Geoffrey Reed wrote:
I?ve gotten back into my Atari systems again and
since I had a couple Indus
GT drives, I found a schematic for the RAM upgrade board for the drives, and
had PCB?s made :) my first professionally produced PCB?s in 20+ years. I?m
quite pleased since it was a first effort with new software when I hadn?t
touched EDA software in 20 years or so.
Lessons learned were:
Increase PAD size :) these are solderable, but are just a touch too small
by the software default.
Validate that pin one indicators REALLY render out to the gerbers. I have to
refer back to my PCB design for pin one since it didn?t render.
Quadruple check that all wires and nets are present. I discovered that a
trace between 2 pins on the connector(s) disappeared on me at some point
during editing, it is entirely possible I deleted it like an ID10T. So for
this run of boards, wire-wrap wire will be my friend to jumper the 2 pins at
the PCB.
If you do another run of these, I'd be interested in one. This is the one
that uses SRAM, correct?
Steve
Yes, uses 1/2 of a 628128. :)
I have a good supply of the boards, I got 25 of them :)