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Originally Posted by walrusx4
Calum this is an incredible writeup.
One query - this looks like a standard 40 pin PC IDE connection (Hard drive and CD-ROM Drive). For easier swapability, has anyone considered maybe attaching a long IDE cable to the connector on the ECU so you can change chips outside of the actual ECU box. Essentially extending the daughter board to the outside of the ECU if you will.
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Sorry, I didn't see your question or I would have responded earlier. The daughterboard in the picture actually has the right side trimmed in order to fit (the oscillator is in the way). Here's a pic of one untrimmed:
Notice that it has four mounting holes on the edges. This is for doing exactly what you describe, and yes, it works great. Oh, you need the right kind of IDE cable though, some have the center pin filled it. If you want to mount a daughterboard like this I can supply the right cable part number from digikey, although they sell them for about $20.
