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Accessing data vector generated by a Virtuoso expression in Matlab using adeInfo

Cra1g

Hi,

I have been using the improved Virtuoso integration with Matlab (adeInfo etc) (Matlab R2019B, Virtuoso 18.1)

I am able to get a waveform from the results database into Matlab for processing ( i.e. of the form VT('/net_name') ) and operate on the ".y" and ".x" vectors in Matlab.

..However I have hit a snag trying to get a Cadence "Expression" Output into Matlab.

The expression I have in Cadence is a few wave processing functions (clip, sample, DFT) and results in a magnitude vs frequency vector in the output pane called "clipped_sinc_out_spectrum".

l have not been able to pass this vector into my Matlab function as an argument, either through the "Matlab Expression" feature in the outputs, or through playing about in the Matlab command prompt.

Below is the closest I have got, but it just yields that the Result is a {'wave'}, but I don't know how to access the wave data itself to start working with it?

adeInfo.adeRDB.query('constraints', Output() == 'clipped_sinc_out_spectrum' & Corner == 'Analog_TTGTT')

Thanks in advance!

Best Regards

Craig

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  • in reply to Andrew Beckett

    Hi Andrew,

    Thanks for clarifying, I'll find another way to do my processing.

    This would however for sure be a useful feature if there is still active improvement going on for Matlab integration.

    Best Regards

    Craig 

  • in reply to Cra1g

    Hi Craig,

    I completely agree that this would be useful - I would encourage you to contact customer support so that a duplicate can be filed - this all helps build the case for implementing this sooner rather than later (there are some technical reasons why it's not completely straightforward to implement, but more requests does tend to increase the priority given to enhancements like this on an actively maintained product).

    Regards,

    Andrew.

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