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As the title implied, using Graphic-based ADE tool as well as ocean script, result can be easily found. But what if I want to use Spectre language, how to achieve this(Screen display or save into a file an simulation result (gain,bandwidth).). I already have the formula copied from calculator in ADE. I tried to write the result in SpectreFinal which is the stimuli file used as the input of a simulation.I only know the way of doing it using Hspice like this:
.op.options ingold=2 list node post.print ac vdb(6) vp(6).ac dec 100 0.001 10g * net 6 = /out.MEAS AC gain MAX vdb(6) *gain.MEAS AC bandwidth WHEN vdb(6)=0 *Unity Gain Frequency (Bandwidth).MEAS AC PM FIND PAR('180+vp(6)') WHEN vdb(6)=0 *Phase Margin 180+phase.MEAS AC GM FIND PAR('0-vdb(6)') WHEN vp(6)=0 *Gain Margin.end
.options ingold=2 list node post
.print ac vdb(6) vp(6)
.ac dec 100 0.001 10g
* net 6 = /out
.MEAS AC gain MAX vdb(6) *gain
.MEAS AC bandwidth WHEN vdb(6)=0 *Unity Gain Frequency (Bandwidth)
.MEAS AC PM FIND PAR('180+vp(6)') WHEN vdb(6)=0 *Phase Margin 180+phase
.MEAS AC GM FIND PAR('0-vdb(6)') WHEN vp(6)=0 *Gain Margin
My current Spectre based file (spectreFinal) with partial section displayed here:
opBegin dc oppoint=rawfile save=allpub maxiters=150+ maxsteps=10K annotate=status write="spectre.dc"acSweep ac start=1.0 stop=1e9 annotate=status save=selected modelParameter info what=model where=file file = "./info.what0"element info what=models where=file file = "./info.what1"outputParameter info what=output where=file file = "./info.what2"
+ maxsteps=10K annotate=status write="spectre.dc"
acSweep ac start=1.0 stop=1e9 annotate=status save=selected
modelParameter info what=model where=file file = "./info.what0"
element info what=models where=file file = "./info.what1"
outputParameter info what=output where=file file = "./info.what2"
The gain from calculator is like this:
*Gain = value(dB20((VF("/vout") / (VF("/1") - VF("/2")))) 2)
How to edit the attached spectreFinal such that I could output the gain into a file using Spectre language?