0
\$\begingroup\$

I'm using Mentor Graphics's DxDesigner to design a PCB. As a side note, I do know what design rule checks (DRCs) are, but I'm completely new to DxDesigner and am not sure what each of their DRCs are.

I currently have 335 errors.

  • 328 connectivity errors

    • drc-106 --> more than one driver on a net
    • drc-121 --> redundant hierarchical symbol on net
  • 7 migration errors

    • drc-001 --> Property ______ has invalid format
    • Note: the specified properties contain these characters: letters, numbers, dashes

If anyone knows how to fix these DRCs that would be great. Otherwise, a link to some good documentation would also be great.

\$\endgroup\$
  • 1
    \$\begingroup\$ DxD is a total piece of crap when I insisted our company stopped using it back in 2010. I'm sorry to see folk still using it. \$\endgroup\$ – Andy aka Jun 29 '17 at 22:37
1
\$\begingroup\$

As a first port of call I would try loading the help documentation in DxDesigner.? There is actually a surprising amount of information which has helpful search functionality.

In any case, hopefully the following will help:

  • DRC-106 is basically you have more than one pin of type "output" connected to a net (e.g. two logic gate outputs) which is usually indicative of either a bad connection, or incorrect pin type in one or other of the symbols.
  • DRC-121 indicates that you have a hierarchy symbol (e.g. "hier-in" or "hier-out", etc.) symbol attached to a net in your schematic, but you are not using it for anything. As such that symbol is redundant.

Not sure about DRC-001.

\$\endgroup\$
  • \$\begingroup\$ How do I get rid of the "more than one driver" error if all I'm doing is connecting pin1 to pin1 of two different ICs? \$\endgroup\$ – J-Win Jun 29 '17 at 21:22

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.