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Joint dot in Cadence Virtuoso

Senan

Hello,

I am using Cadence Virtuoso version 6.1.8-64b.

I would like to ask why the schematic editor allows for a maximum of only three wires per joint dot, and when I connect the fourth wire he shows me a warning after saving and checking.

What is the benefit that Cadence made this rule and how can I overwrite it.

Thank you

Regards

  • It's a long-standing default, intended to allow you distinguish between two wires which are crossing each other and those which are connected. When you are zoomed out a long way, you can't see the solder dot so it is hard to know whether the two wires are connected or not since the solder dot is too small to be seen.

    The warning produced is:

    Warning: Solder dot on cross over at ( -0.0625, 0.7500 ).

    You can change the default very easily using this entry in a .cdsenv file:

    schematic                          srcSolderOnCrossover                                           cyclic   "ignored"

    or in .cdsinit:

    envSetVal("schematic" "srcSolderOnCrossover" 'cyclic "ignored")

    Andrew.

  • in reply to Andrew Beckett

    Thank you very much Andrew for your reply and explanation, your answer is perfectly working with me

    Best Regards

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