SR_FF

Dear all...

I saw a bit of headache with this tour of the mine.

I understand the flip flop that I use I based on NOR doors because the Set and Reset are active high.

When R = 1, U4 should light up.

When S = 1, U3 should light up.

But in my case, the two indicators are light independent of the position of the switch.

Please follow the diagrams below for more details.

PLEASE HELP ME

Try placing a resistance to Earth at each entrance to the flip flop.  In real circuits, this may offer a path for leakage.  I don't know what the internal circuit of the FF model.

Lynn

Tags: NI Software

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