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 Test Points 

Last post Wed, Jan 9 2013 4:45 AM by TH Designs. 6 replies.
Started by TH Designs 07 Jan 2013 05:41 AM. Topic has 6 replies.
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  • Mon, Jan 7 2013 5:41 AM

    • TH Designs
    • Top 25 Contributor
    • Joined on Fri, Apr 13 2012
    • Warminster, PA
    • Posts 248
    • Points 4,010
    Test Points Reply

    Does 16.5 support test point generation?

    Layout had the ability to convert vias to test points and to also add test points. I do not see anything like this in 16.5.

    Tom
    • Post Points: 20

  • Mon, Jan 7 2013 7:21 AM

    • oldmouldy
    • Top 10 Contributor
    • Joined on Tue, Jul 15 2008
    • Woking, Surrey
    • Posts 1,027
    • Points 17,320
    Re: Test Points Reply
    There is a bunch of testprep, as it's called in PCB Editor, stuff, see the Test Preparation section in algroman.pdf, in the doc\algroman directory of the installation. Existing Vias can be used, if required, or you can use Test Points in the schematic with appropriate footprints. The advantage with the Schematic method is that you can be assured that you have Test Points assigned to required nets, the downside is that you have to place them in the board.
    • Post Points: 20

  • Mon, Jan 7 2013 8:08 AM

    • TH Designs
    • Top 25 Contributor
    • Joined on Fri, Apr 13 2012
    • Warminster, PA
    • Posts 248
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    Re: Test Points Reply

    If I use the vias as test points, is there a way to tell the percentage of coverage? This way I can tell what nets I would need to add tp's to in the schematic to acheive 100% coverage. This particular customer likes to have 100% coverage.............

    Thanks for the help

    Tom
    • Post Points: 20

  • Mon, Jan 7 2013 1:27 PM

    • oldmouldy
    • Top 10 Contributor
    • Joined on Tue, Jul 15 2008
    • Woking, Surrey
    • Posts 1,027
    • Points 17,320
    Re: Test Points Reply
    Tools>Quick Reports (or Reports) >Testprep Report should be all you need.
    • Post Points: 20

  • Tue, Jan 8 2013 12:37 PM

    • TH Designs
    • Top 25 Contributor
    • Joined on Fri, Apr 13 2012
    • Warminster, PA
    • Posts 248
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    Re: Test Points Reply

    Went through the Cadence procedure setting up everything using "testprep - parameters".

    Procedure tells me once everything is set up, go to "Manufacture - Testprep - Automatic" and run. Well that is when I found out that my version does not support automatic generation of test points as my only option is "Manual".

    I wonder if there is any sort of work around for this as I really don't want to have to manually insert test points for every trace. It would take forever.............

    Tom
    • Post Points: 20

  • Tue, Jan 8 2013 5:56 PM

    • ScottCad
    • Top 50 Contributor
    • Joined on Sat, May 26 2012
    • Roswell, GA
    • Posts 118
    • Points 1,960
    Re: Test Points Reply

    Tom in your older version of Layout, Did it come with the specctra AutoRouter ?, You could generate your testpoints with that. It works really really well.

    In  Allegro you can choose Export Router to export the file. Be aware that it uses the same extension as Orcad Capture schematic files : ), hidden treasure that.

    Scott
    • Post Points: 20

  • Wed, Jan 9 2013 4:45 AM

    • TH Designs
    • Top 25 Contributor
    • Joined on Fri, Apr 13 2012
    • Warminster, PA
    • Posts 248
    • Points 4,010
    Re: Test Points Reply

    I believe that last Layout version I had with the autorouter was 9.2. I probably bought it back in the late 90's. Since I never really had the need to autoroute, I dropped down to the packages without it.

    The basic Layout program could generate testpoints automatically. PCB Editor needs to be the "professional" version to do it. (another 3K).

    Tom
    • Post Points: 5
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Started by TH Designs at 07 Jan 2013 05:41 AM. Topic has 6 replies.