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whenever i plug in the powersupply to the fpga the power supply led on the charger turn off, however if the charger is just plugged in the wall soket it is on. the fpga dosent seem to be working at all. any advice?
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1) Measure the impedance between the power and ground pins on your FPGA board. If its zero ohms, then you have a short on the board (possibly a dead device).
2) Use a lab supply and power the board from that. Adjust the lab supply current rating to be similar to your wall-wart current rating. If the supply goes into current-limit, then you have a problem on the FPGA board.
If you have the schematics to the board, then you can decide whether its worth trying to fix.
You didn't happen to hear a loud bang and smell smoke the last time you used this board did you? :)
Cheers,
Dave
Honored Contributor
