My clock design is giving me an undefined output

There are a number of ways to check the clock frequency. Probably the simplest would be to take the output of the oscillator circuit you created and run into a large counter (I suggest 64 bits). You can generate this circuit block in the IP Megawizard – just select 64bits and binary output, use defaults for other settings.Take each output bit of the counter and run into a large Multiplexer. Use the switches as the selects to the multiplexer (6 bits for select) and attach the output of the multiplexer to an LED. Take 2 more LEDs and just make them a “1” or “0” (one of them will be on permanently after programming the board). Program the board. If the LED attached to the clock is half as bright as the one that is permanently on, then the tap from the multiplexer is too low of a bit from the counter and its switching and is blinking too fast for you to see. Keeping trying different bits of the counter until the LED attached to the divided clock blinks at a rate of about 10 seconds on and 10 seconds on and do the math to figure out what frequency the oscillator is blinking at. I built this circuit based on this wiki post and it worked for me (no gate eating!): https://fpgawiki.intel.com/wiki/Ring_Oscillator

If you need my archive file of this design, let me know (Verilog).

Cheers,

Larry