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Pwr vs. Sup (4.16r2)

Former Member

Can someone explain to me the difference between Pwr and Sup pin directions

when creating a part?  I've read and re-read the manual on this topic and

I'm just not getting it.  How do you decide which to use?  Thanks.

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  • Am 24.07.2012 20:21, schrieb Karl Lautman:

    Can someone explain to me the difference between Pwr and Sup pin directions

    when creating a part?  I've read and re-read the manual on this topic and

    I'm just not getting it.  How do you decide which to use?  Thanks.

     

     

    Help Pin

     

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    Mit freundlichen Grüßen / With best regards

     

    Joern Paschedag

     

  • On 24/07/2012 19:21, Karl Lautman wrote:

    Can someone explain to me the difference between Pwr and Sup pin directions

    when creating a part?  I've read and re-read the manual on this topic and

    I'm just not getting it.  How do you decide which to use?  Thanks.

     

     

    From "help pin":

     

    "pwr     power input pin (Vcc, Gnd, Vss, Vdd, etc.)

    Sup      general supply pin (e.g. for ground symbol)

     

    If Pwr pins are used on a symbol and a corresponding Sup pin exists on

    the schematic, nets are connected automatically. The Sup pin is not used

    for components."

     

    This means that your Vcc/GND/etc. lines on your symbols should be "pwr"

    pins.  If not INVOKEd on the schematic, these pins will automatically

    connect to supply symbols with the same name.

     

    It's good practice, IMHO, to keep all connected pins visible on the

    schematic, particularly if you including decoupling capacitors.

     

     

    Andrew

    0xADF