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Different Net classses on GND?

autodeskguest

Example: I have a CPU and power suppy part on my schematic. The CPU is

connected to GND via GND symbol and gets assigned to my own defined net

class GND. The power supply is also connected to GND via GND symbol.

 

Here is the problem: I would like to have a net class with smaller width on

the CPU part GND (8 mil) and wider on the power supply (20 mil). However,

whenever they are connected together the apply to the same net class.

 

How do I split them to be connected to the same net but have different net

classes?

 

I have solved it temporary by having them separeted in different net GND and

GND_MAIN and then connected together with a resistor (0 ohm). Feels stupid

but I haven't understood how to separete them into different net classes in

any other way...

 

 

 

 

Parents

  • Yes the "resistor (0 ohm)" solution is the only available, but not so

    elegant.

     

    To route my PCb, I use a script like "auto Wire1; auto Wire2; ...",

    obtaining a good PCB, better than EAGLE auto; and also better the

    FreeRouting.

     

    The problem of "2 GND traks size" is similar to the "decoupling capacitors

    of an IC".

    I want a straight track from the capacitor to the IC.

     

    I suggest to the Eagle guys the following implementations:

     

    1- name a segment of wire like mailto:GND@MAIN mailto:GND@CPU

    mailto:VSS@PIN21 mailto:VSS@PIN34;

    2- class the segments mailto:GND@MAIN mailto:GND@CPU mailto:VSS@PIN21

    mailto:VSS@PIN34;

    3- auto GND;     if I want to route all GND wire's segment;

    4- auto mailto:GND@MAIN; if I want to route the single segment;

     

    amelia

    --

    Browser access to CadSoft Support Forums at http://www.eaglecentral.ca

     

Reply

  • Yes the "resistor (0 ohm)" solution is the only available, but not so

    elegant.

     

    To route my PCb, I use a script like "auto Wire1; auto Wire2; ...",

    obtaining a good PCB, better than EAGLE auto; and also better the

    FreeRouting.

     

    The problem of "2 GND traks size" is similar to the "decoupling capacitors

    of an IC".

    I want a straight track from the capacitor to the IC.

     

    I suggest to the Eagle guys the following implementations:

     

    1- name a segment of wire like mailto:GND@MAIN mailto:GND@CPU

    mailto:VSS@PIN21 mailto:VSS@PIN34;

    2- class the segments mailto:GND@MAIN mailto:GND@CPU mailto:VSS@PIN21

    mailto:VSS@PIN34;

    3- auto GND;     if I want to route all GND wire's segment;

    4- auto mailto:GND@MAIN; if I want to route the single segment;

     

    amelia

    --

    Browser access to CadSoft Support Forums at http://www.eaglecentral.ca

     

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