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Completed PCB shows what looks like an unrouted Net between 2 Pins off Separate Nets

pcat

Hello I have just completed a PCB and when I zoomed in to check for a final inspection ,I found what looked like an in routed Net wire between 2 pins on my microcontroller.

When I hover over one of the pads a circle appears on the other pad but not vice versa.

If I hide all nets it goes away, there is no Net on the schematic joining these two pins that have their own Net labels that are on the PCB also.

I'm confused as to what it is trying to tell me.

I have a screen shot but don't know how to attached to this message.

 

Thanks

 

Paul

  • 0

    HI Paul, you should be able to copy and paste an image or use the image button to load an image file.image

  • 0 in reply to e14softwareuk

    Hi Peter, its between LCD_RST and LCD_A0

    No join on schematic no errors when compiling

    Thanks

    Paul

    image

  • 0 in reply to pcat

    A couple of things to try. First make sure your schematic and PCB components are in sync by checking Tools | Component Links in the PCB editor and that the netlists are in sync using Home | Project > Import Changes From {project}.

     

    1. Is there a fragment of track lurking under pin 17 (on any layer) that could be causing something to look like it is not routed?

     

    2. Check Tools | Netlist > Edit Nets... in the PCB editor - do the netlists for the two signals look correct.

     

    3. Reload the netlist by first running Tools | Netlist > Clear All Nets and then reloading using Home | Project > Import Changes From {project}.

  • 0 in reply to e14softwareuk

    Hi Peter,

    I always check the component links as it can get messed up when cutting and pasting in the schematic .

    However I didn't realise its safe to clear Nets after tracking then Import so learned something there. I was worried Hours of tracking would vanish  !

     

    But you were correct there was a tiny Blob of track on the top layer.

    Is there a method of hiding/turning off the components ? I have used this feature in other packages.

    I've played with the View/ PCB/Filter but cant find a way, I guess because the component footprint is on the Top Layer as per the Tracks

     

    Great support thanks