Home > Community > Forums > Custom IC Design > QRC extraction & BUS

Email

* Required Fields

Recipients email * (separate multiple addresses with commas)

Your name *

Your email *

Message *

Contact Us

* Required Fields
First Name *

Last Name *

Email *

Company / Institution *

Comments: *

 QRC extraction & BUS 

Last post Thu, Feb 28 2013 9:15 AM by Zdeno. 2 replies.
Started by Zdeno 31 Jan 2013 04:50 AM. Topic has 2 replies and 930 views
Page 1 of 1 (3 items)
Sort Posts:
  • Thu, Jan 31 2013 4:50 AM

    • Zdeno
    • Top 500 Contributor
    • Joined on Tue, Oct 12 2010
    • Geneve, Geneva
    • Posts 25
    • Points 290
    QRC extraction & BUS Reply

    Hi guys,

    I have problem with simulation of BUSes in extraction view. I use IC615, Assura QRC. First I simulate gate-level verilog netlist with AMS. In verilog I have bus cnf_reg_analog<15:3> and I can plot results from this bus. Then I create abstract with Encounter, then layout. Run Assura LVS -> Clean. Run Assura QRC -> create extracted view.

    The problem is that in layout the bus net name looks like cnf_reg_analog<15> and in the extracted view looks like cnf_reg_analog(15). Note the brackets. And ADEXL (AMS simulator) complains:

     

    ERROR (WIA-1006): Unable to plot expression <VT("/cnf_reg_analog<15>" "/home/cadence/simulation/TEST_BENCHES_PHpix1/PHpix1_channel_digi_tb/adexl/results/data/Interactive.12/psf/tran")>

    because it does not evaluate to an object that can be plotted, like a waveform or

    parametric wave. See the Visualization & Analysis Tool documentation for information

    about the types of objects that can be plotted in Visualization & Analysis Tool. Only

    the expressions that evaluate to those objects can be plotted.

    *Warning* Wave2 is not a waveform object that can be displayed and

    will be DELETED automatically.

    name: "/cnf_reg_analog<15>"

    So I assume that the problem is in bus extraction and brackets, but I do not know how to correct it.

    I attached the properties of the net in layout and in extracted view for better understanding.

    Do you have any idea how to simulate the BUS in extracted view?

    Thank you, Zdeno

     layout

    • Post Points: 20
  • Thu, Feb 21 2013 5:21 AM

    • Quek
    • Top 10 Contributor
    • Joined on Wed, Oct 14 2009
    • Singapore, 00-SG
    • Posts 1,071
    • Points 16,285
    Re: QRC extraction & BUS Reply

    Hi Zdeno

    You can convert the round brackets to angled brackets during extracted view generation using the skillscript in solution 11290520.


    Best regards
    Quek

    • Post Points: 20
  • Thu, Feb 28 2013 9:15 AM

    • Zdeno
    • Top 500 Contributor
    • Joined on Tue, Oct 12 2010
    • Geneve, Geneva
    • Posts 25
    • Points 290
    Re: QRC extraction & BUS Reply

     Hi Quek,

     Thank you very much for the solution! That's works perfectly.

     Best regards,

     Zdeno

    • Post Points: 5
Page 1 of 1 (3 items)
Sort Posts:
Started by Zdeno at 31 Jan 2013 04:50 AM. Topic has 2 replies.