SIDE 1299. W11. RS FLIP-FLOP UNESTABLE

RS FLIP-FLOP oscillates at startup. It should take a fixed random position. Tell me please when You can.

This is the same  problem than 4060:
https://simulide.forumotion.com/t901-side-1299-w11-internal-4060-oscillator-drivers#4292

Now there are more options to solve it, but in R1299 there is already a solution available:

Activate "Randomize Propagation Delay" in at least one (better both) of the NAND gates.
Gate->Properties->Edges->Randomize PD.

Or you could set an slightly different "Gate delay" for one of the NAND Gates.

Good indications, thanks.

That´s not the question. Try with gates, and you will see.

Yes, I tried. Gates on single logic do not work.

I created a new discussion with Alex posts:
https://simulide.forumotion.com/t934-flip-flop-unestable

Alex68 wrote:Yes, I tried. Gates on single logic do not work.

Yes, you are right "Randomize PD" does not solve the problem.

When "Randomize PD" was implemented it could "intercept" the previous output state scheduled, but later some changes were introduced that allowed inputs changing faster that propagation delay, so now "Randomize PD" doesn't work.

The solution was implemented to fix 4060 problem (Gate: Set initial state):
https://simulide.forumotion.com/t901-side-1299-w11-internal-4060-oscillator-drivers

So I will delete this "Randomize PD" because it seems useless and now we have "Set initial state" which is effective.

Thanks, I think it is the best idea.