Hello all,
I'm trying to learn spectre because it can track correlations by device instances.

I'm writing out my netlists manually, and I'm trying to the measure propagation delay across a gate. The spectre user guide and reference (and the do measurements with the oceanEval statement:

export somesignal=oceanEval("some expression")

I couldn't find any documentation on how oceanEval was supposed to be used, and the some expression in the brackets looked like it was from spectreMDL, so my code ended up looking like:

mc1 montecarlo numruns=10 seed=1 variations=process savefamilyplots=yes {
vtran tran start=0 stop=10n step=50p
export tdelay=oceanEval("deltax(sig1=in,sig2=out,dir1='rise, n1=3, thresh1=0.6, start1=0, dir2='fall, n2=3, thresh2=0.6 start2=0)")
}

How can I measure propagation delays (and other such derived values) in a monte carlo simulation without going through the gui? All I need are the values; I’ll run the rest through Matlab.

Also, what is the right way to use oceanEval?

Thanks a lot!
Richard Tseng