sugar
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Yeah, I believe during trimming process, the random device parameters will not change. but unfortunatly, I cannot do that trimming simulation, because it takes long time and monte carlo simulation is unrealistic. So now I want to check whether my control code S<2:0> is enough or not to cover 3-sigma process variation. I believe the trimming process has no problem. As long as the control code S<2:0> can cover the process variation, the trimming process can calibrate the circuit to the correct working point. I believe if I don't stop the simulation, the random device parameters will not change. but only after simulation I can check the performance of the circuit, and then change the control code (say, change the voltage of a DC voltage source which is connected to the control code). With this new control code, I re-run the simulation and I want to check the performance of the circuit with previous device parameters. I think Run# is the seed for random device parameters generation, that means if Run# is the same, the device parameters should also be the same. That's true if I don't change the control code. The monte carlo simulations show that fact. But if I change the control code, even the seed is the same, but the device parameters are changed. Finally, my question is how to attain the same device parameters with different control code settings?
Best Regards, River
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