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 Subject :Single red LED flash.. 2017-07-25 10:50:10 
rjweber@Berkeley.edu
Joined: 2017-07-25 15:14:00
Posts: 1
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I've gone through two Xprotolab Plains now in two days.  They were running OK and then stopped.  When applying power through the USB port I get a single short red LED flash, then nothing.

I tried grounding pin 1 (square pad) on the six-pad connector on the end of the board to put the processor into reprogram mode, but still I only get the single red flash, not steady red LED on.  (Cannot find the pinout or number pattern of this connector anywhere in the manual.)

Are these fried?

 

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