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question about the ERC errors

houandreas

Hi, I use eagle to finish my first board. It is a adapter board. I got lots of errors saying "output and supply pins mixed on net gnd" before. And I found out that the library of a LED is wrong. Both sides of it were defined as in and output. As I change it to pas all errors are gone. Now here is my question, despite those errors I can still design my layout. The ERC just need the direction to simulate the circuits. And the manufacture house just need to make the board from the layout, so for them the ERC check is also irrelevant. Can I ignore such direction errors if I'm sure the schematic is right?

  •   wrote:

     

    Can I ignore such direction errors if I'm sure the schematic is right?

     

    If you are sure your schematic is correct then yes. It's worth correcting your libraries and running ERC even if you THINK your schematic is correct. It's possible it will spot something that isn't immediately obvious so it's always a good idea to run it anyway, but the main one from a manufacturing point of view is the DRC checks in the board editor. If you have errors there then these will need to be examined more thoroughly.

     

    Best Regards,

     

    Rachael

  • in reply to rachaelp

    ty,I ask this to make it clear what ERC is for. I will always run ERC,but maybe I can skip some warnings in some very simple circuits.