component part placement bug

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Tomg
Expert
Posts: 2028
Joined: 20 Jun 2015, 07:39

component part placement bug

#1 Post by Tomg » 25 May 2021, 01:53

1) Open a new schematic, select the "Components" library group, choose the library named "IC Logic Gates Inverters", select/highlight the component named "74ABT04D/AUJ", enable "[x]Auto PWR/GND", choose "All Parts" and place it in the schematic. You should see U1 with all of its parts: U1.1, U1.2, U1.3, U1.4, U1.5, U1.6 and U1 (power pins).
2) Choose "Part 1", click on the same component name in the library's list ("74ABT04D/AUJ") and place it in the schematic. You should see U2 with only two of its parts: U2.1 and U2 (power pins).
3) Now choose "Part 6", click on the same component name in the library's list ("74ABT04D/AUJ") and place it in the schematic. What gets placed is actually "Part 2" of U2 ("U2.2"), not "Part 6" of U2 ("U2.6").

To me this appears to be a bug. The part selection places the first missing part in the sequence instead of the part that was actually selected.
Tom

Alex
Technical Support
Posts: 3897
Joined: 13 Jun 2010, 23:43

Re: component part placement bug

#2 Post by Alex » 25 May 2021, 23:53

Thank you for the report but this is not bug.
"Part 1", "Part 6", etc. are part names (not gate numbers). They could be any text strings with and without letters and numbers.
The number after point in component RefDes is part RefDes. The software initially assigns the first unused number in part RefDes. Therefore the 6th gate has got 2nd part RefDes. User can assign custom part RefDes (change number or use letters A, B, C, etc.). The forfeit for the flexibility is sometime confusion when part RefDes doesn't correspond gate number.

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