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Allegro Extra pins and Missing Pins

salasidis over 16 years ago

I am new to Allegro, and have a problem with PCB Footprints for certain components.

For example,

A) one component mounts on a Dip16 footprint, but only has 4 pins (pin 1,8,9,16).

B) A diode uses a SOT-23 package with 3 pins, but only 2 pins are required.

How does one force Allegro to ignore missing pins in the schematic that are not required (example A).

I have "fixed" this by defining in my Orcad CIS part schematic invisible zero length pins that are not required (ie define the other 12 pins in example A, or create a new diode symbol with an extra unused pin.

Is there a better way?

(netrev.lst output below

ERROR(SPMHNI-196): Symbol 'SOT65P210X110-3N' for device 'DIODE TS_SOT65P210X110-3N_DISCR' has extra pin '3'.

#2 WARNING(SPMHNI-192): Device/Symbol check warning detected.

ERROR(SPMHNI-196): Symbol 'DIP16' for device 'CPC1945G_DIP16_DISCRETE_CPC1945' has extra pin '2'.

ERROR(SPMHNI-196): Symbol 'DIP16' for device 'CPC1945G_DIP16_DISCRETE_CPC1945' has extra pin '3'.

ERROR(SPMHNI-196): Symbol 'DIP16' for device 'CPC1945G_DIP16_DISCRETE_CPC1945' has extra pin '4'.

ERROR(SPMHNI-196): Symbol 'DIP16' for device 'CPC1945G_DIP16_DISCRETE_CPC1945' has extra pin '5'.

ERROR(SPMHNI-196): Symbol 'DIP16' for device 'CPC1945G_DIP16_DISCRETE_CPC1945' has extra pin '6'.

ERROR(SPMHNI-196): Symbol 'DIP16' for device 'CPC1945G_DIP16_DISCRETE_CPC1945' has extra pin '7'.

ERROR(SPMHNI-196): Symbol 'DIP16' for device 'CPC1945G_DIP16_DISCRETE_CPC1945' has extra pin '9'.

ERROR(SPMHNI-196): Symbol 'DIP16' for device 'CPC1945G_DIP16_DISCRETE_CPC1945' has extra pin '11'.

ERROR(SPMHNI-196): Symbol 'DIP16' for device 'CPC1945G_DIP16_DISCRETE_CPC1945' has extra pin '12'.

ERROR(SPMHNI-196): Symbol 'DIP16' for device 'CPC1945G_DIP16_DISCRETE_CPC1945' has extra pin '13'.

ERROR(SPMHNI-196): Symbol 'DIP16' for device 'CPC1945G_DIP16_DISCRETE_CPC1945' has extra pin '14'.

ERROR(SPMHNI-196): Symbol 'DIP16' for device 'CPC1945G_DIP16_DISCRETE_CPC1945' has extra pin '15'.

aneter over 14 years ago

to everybody..... when you create the netlist in Orcad you have to include the option "allow user define proprieties" otherwise the NC propriety is ignored by allegro
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redwire over 14 years ago

Never had to do that. I think you might be doing something wrong.
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