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Codiode/Problems/Sequential Logic

Synchronous Reset Wired to Asynchronous Path Debug

MediumLogic CircuitDebug

A synchronous reset flip-flop updates its state only on the active clock edge, ensuring predictable cycle-level timing.

Expected behavior:

The Q output must track the D input on the rising edge of CLK. When RST is high, Q must transition to 0 only on the next rising edge of CLK.

Simulation shows Q clearing immediately mid-cycle when RST asserts, regardless of the CLK state. The reset is behaving asynchronously. Inspect the circuit and correct the fault.

Constraints

  • Do not add new logic gates.
  • The circuit must implement a strictly synchronous reset.
  • Modify only the existing wiring to correct the fault.

Topics

debuggingsequential-logicflip-flopssynchronous-reset

Solve this problem

Place the gates, wire them up and watch the signals settle. Every submission runs on the same simulation engine that grades it.

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