16 Bit IDE PCB

Here is a PCB I did for Stephane GUILLARD's 16bit IDE interface.


I had nothing to do with the creation of the schematic.  I 
translated Stephane's schematics and logic diagrams into 
a PCB drawing.  I have one printed out and need to do the
final soldering before testing.





THIS IS NOT THE FINAL DRAWING.  The bus logic is screwed up (due
to my drawing) and will not work.  I need to transfer the latest
edition to my PC for uploading here.  DO NOT PRINT THIS CIRCUIT
BOARD.  If you do, it will make a horrible frisbee, but maybe
a good coaster.  Burn a CDR and halfway through pull the plug
on your UPS or power.  That will make a sufficient coaster, and
it creates some nice visual effects when in any light source.





I used some tricks to do the PCB.  I have the ability to etch
2 sided boards, but its still hard as rock to route traces to
where they have to go without running over things or going the
LLLOOONNNGGG way around.

This is my first 2 sided PCB ever tried to design, so laugh
all you want.  I'll get better at it and laugh myself!

I chose to surface mount some of the DIP chips.  Bend some of
the pins up.  Few of the DIP leads have holes through the board.
They are easy to solder through the holes, or not.  By not putting
holes and surface mounting, I can sneak a trace under the board
where the hole WOULD have been.  Lots of leads on the DIPS are
not used, so clipping them gave alot more room to route.

If you see anything wrong with placement/routing/trace lengths,
etc, let me know.  The BUS LOGIC portion of the below drawing
is completely WRONG due to early revision.  Some of the GLUE
logic connections aren't made either.  The drawing is rev3 out
of 12.  Very early.  I've packed things closer and got all the
connections right in rev12.   This is just to look at.  Get 
excited if you cant make a PCB and you'd like to try out 
Stephane's IDE interface.  When I get the PCB layout good and 
easily etchable/drillable, I may offer PCBs for a small cost.





















Theres pics of the power supply for the IDE drive.