In SX Microcontrollers, SX/B Compiler and SX-Key Tool, johncouture wrote:

Ok gang,

Some days I just have too much time on my hands (grin).

Anyway, here is a stab at Mark's board.  Attached are the schematic, a new board layout and a parts list.

Many, many more things need to be done to it and there are errors in it because there are places where I could not figure out where the traces went.

I did the board in Eagle 4.16r2.  This is a freeware program that allows you to make up to 80 x 100 mm boards.  The fancy thing about this is the autorouter which I'm sure Mark will appreciate because once you create the schematic and roughly place stuff on a board, the computer figures out how to get the traces to the components.  Program is available at [url=http://www.cadsoft.de/]http://www.cadsoft.de/[/url]  Note that the learning curve is a little steep but well worth it!

My design skills are minimal so please check the following:

1) Connectors may be upside down.  I still haven't figured out which way is up.

2) cross signal interference.  I laid out the board to make it look pretty.  That may not work in real life when you have high frequency signals near other signals.  Someone needs to double check that.

3) Obviously, Mark needs to look it over and determine if I am even close!

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