Using expression evaluated data points as a function or a waveform from one test to the other in ADE assembler

Hello, 

adding some details to query in previous message - 

I have an expression in test1 which is evaluated from a "Tran" analysis to compute the frequency of an oscillator. I am using frequency(clip(VT("/osc") t1 t2)) to evaluate the frequency for a particular code value.

Frequency = frequency(clip(VT("/osc") t1 t2))

By sweeping the code as 0:1:7 I get a plot (screenshot below ) of the frequency(clip(VT("/osc") t1 t2)) Vs code which I wish to use in the next test. 

I need to use this evaluated oscillator frequency Vs "code" data points into the next test using calcval or any other option. 

regards 

What are you sweeping in the next test. Is it code too? If so, you should just be able to use calcVal("Frequency" "test1") (which should give a one to one correspondence of the value at the same sweep point values) . Knowing what you are trying to match up in the subsequent test is quite important to be able to give you an answer.  

Andrew

thanks a lot for the reply Andrew. Actually I am trying to find the codes in test1 which give me a particular frequency i.e. 45Mhz across different corners (kind of a frequency calibration). For example the plot I shared in previous message is at Typ corner 25degC 

In test2 I am again running a transient simulation and wish to use the corner wise calibrated codes from test1 to re-evaluate the calibrated frequencies in test2.

regards

Rather than me working through an example, it's simpler to point you at this: Techniques for Simulating Calibrated Circuits with Virtuoso ADE Assembler 

Andrew

thanks a lot for the reply Andrew. I had seen these and other similar articles on calcVal earlier but it seems I am unable to evaluate the calibrated codes (code_cal) correctly in test1. 

code_cal=cross(Frequency 45000000)

I get "eval err" when I use cross(Frequency 45000000) in test1 so it is not useful to pass code_cal to calcVal  in test2 to get the corresponding calibrated code for the standard transient simulation in test2. 

calcVal("code_cal" "test1")

May be my test1 sweep isn't correct enough to create Frequency as a function of the swept code 0:1:7 ??

Just to elaborate on my previous comment may be the issue is that he Frequency is a function of the code across the 8 transient simulations (000 to 111) but not for a single transient simulation hence code_cal=cross(Frequency 45000000) won't evaluate and hence cannot be used in test2 ?

The function seem to be evaluating fine in the calculator but not other wise - 

regards