The Configuration Problem Solver

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The FPGA is not properly Powered.

Obviously, if an FPGA is not properly powered, it's not going to function at all. However, this is not a possibility that should be easily overlooked. A single misconnection may be inadvertently preventing normal operation. Check every VCC, GND, and configuration related pins (PROG, INIT, DONE, CCLK, Mode Pins, etc) for short circuits.