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I have a basic 2-bit deserializer circuit that I would like to simulate. The circuit is attached. It is based on five edge triggering D type flip flops. My problem is I don't know how to stimulate the input. I would like to send in a somewhat random (but predetermined) series of ones and zeros to verify that the circuit works. For example: send 110101110101000110101101 (or any other predetermined sequence) into the circuit and look at the output. Is there a way to do this?

Great program, by the way -- I really like the interface...

Hi,
You can try to build your own generator of sequences. First build a counter using your D-flip-flops. Use this count as an address of ROM with one bit data. Populate the ROM with whatever sequence you want.
Thanks,
Eugene

Thanks for the advice. I tried that (in the interim between my initial posting and your response), and am having difficulty with the ROM device. If I make it a 4 bit address with one data bit, I can store 16 values in the ROM. However, the address input is only one pin. How do I connect my four bit counter to the ROM address pin? Please excuse me if this is a really dumb question... I am fairly new at designing and simulating digital circuits.

You need to bundle 4 bits of your counter with splitter. Then you can connect splitter to the ROM’s address. Please see Splitter section of help at: http://www.logiccircuit.org/splitter.html