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n/a
41 Posts |
 Posted - 23 Oct 2012 : 10:03:18
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| How do I force the library to allow missing pin numbers on parts I create, so that they correspond to their data sheets? For example, relays and DC-DC PSU's often have a pin or two not present, but the remaining pins are not necessarily renumbered. |
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DavidM
United Kingdom
458 Posts |
Posted - 23 Oct 2012 : 10:37:26
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Create your schematic and pcb symbols as normal, with the pcb symbol having for example 6 pins even though it is arranged like an 8 pin footprint with 2 pins missing.
Now create your component, and name the pins with the actual pin numbers you want to use. So your pin table in the component editor might look like this:
sch pcb comp
1 1 1
2 2 2
3 3 4
4 4 5
5 5 7
6 6 8
thus missing out pins 3 and 6.
Although the default action when entering the pin numbers is for the component pin to have the same number as the pcb symbol, this is not actually fixed, you can name the pins on the component with anything you like.
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nigle
United Kingdom
45 Posts |
Posted - 23 Oct 2012 : 10:41:04
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When creating a PCB symbol you can't have missing pad numbers.
The way to deal with this is at the component level, the Component Pin Name/Number column is normally automatically set the same as the PCB Symbol Pad Number but can be set to anything you like so that it matches the datasheet. This is the pin number that you will see in the schematic, not the pad number. |
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n/a
41 Posts |
Posted - 23 Oct 2012 : 15:26:38
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Thanks both of you, mission accomplished  |
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Topic |
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Missing pins on components