Communication Issue?

[wbottomley]

I have three express controllers causing a bit of a headache (1, 2, 5).  They aren't responding to any commands though data is being passed through to other units and start channel is set correctly. Would this be a comm chip issue?

[duane.mosley]

have you reset them? have you changed anything in your sequencing profiles? does the data light come on? 3.3v light? 5 v light? do all the leds respond when you run a test on the express? is the program jumper removed? start with those items and if those all check out, I would reflash the pics

[Jeffl]

I would re flash the PIC to start.

[wbottomley]

Reset done, no sequencing changes, 3.3V & 5V lights are on, they respond to all board tests, jumpers correctly set, pics - will have to reflash.  I'm swapping out comm chips first before taking unit back home to reflash.

[Jeffl]

Swapping the pic from a known good unit is a good test as well.

[wbottomley]

I have one.  I'll give it a shot.

Thank you for the help!

[wbottomley]

I popped in another comm chip in these boards and the problem is solved.  Thank you for the help!

Maybe I should get some extra ones.  Anyone have the Mouser or other place where they can be ordered?

[Jeffl]

All the Lync Express info is in the WIKI here.

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The parts list bill of materials can be found here.  I think some are end of life however so it may take some searching to find what you need.

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