Circuits / Combinational
Bus Contention / Short-Circuit Diagnostic
Demonstrates how connecting two opposing gate outputs directly onto one wire causes a red Error (E) state that the AI Signal Prover can diagnose.
Connecting two gate outputs directly onto one wire creates a short circuit.
The wire settles to Error (E, red) state when both drivers are active with opposite values.
The AI Signal Prover traces the conflicting drivers and highlights the root cause.
Fix: separate the outputs with an OR gate or use Controlled Buffers (tri-state).
Tip: If the wire is Error (red), use the "Why this value?" feature to diagnose.
01Z floatingE conflict (dashed)
| A | B | SharedBus |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 1 | E |
| 1 | 0 | E |
| 1 | 1 | 1 |