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[SOLVED] NAND not working?

edited April 2018 in General

I have a timer in my game which increments the score every 1/10th of a second, feeding through a NAND gate first.
Once the game ends, another timer is triggered at 1/10th delay (have also tried 0 to no avail) also feeding into the NAND.

The result should be the score stops incrementing, as the NAND should output 0 once both inputs are 1, however it continues to output 1 anyway.

Am I doing something wrong? Is it possible the two timers are firing slightly out of sync, thus the NAND would always be on?
If so, is there another solution to what I'm trying to do?

The game can be seen here:

The logic is in the Game Controller (blue box to the left):
Screen Shot 2018-04-11 at 18.23.56


  • I think you are almost certainly correct that the timers are not firing at exactly the same moment. Any frame that they don't fire together will mean that the NAND still activates.

    If I understand your intentions correctly, can you just use a switch in place of the NAND gate, and turn it off when the game is over?
  • Ah damn, I somehow completely missed the switch.

    Yeah that works perfect, thanks a bunch!
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