How to show a 100 pin uP as separte parts?

Schematic
1

I’m working on creating a schematic with a 100 pin micro processor and a lot of additional circuitry.

  • Instead of drawing a line/connection from each pin on the 100 pin processor symbol to each of its connecting sub-circuits…
  • I’ve drawn the uP as a set of boxes… each representing only a part of the uP…
  • And from each box i’ve drawn lines/connections to the associated connecting sub-circuits.
  • So when looking at the schematic you see part of the uP here and another part there, etc.
    And importantly, only the relevant pins of the uP’s 100 pins appear on each partial representation.

Problem 1: Drawing a box with lines/connections ending at the box is not the same as connecting to a pin on a component… so there would be no way to ultimately create a PCB from the schematic.
Question 1: Is there any way to sub-divide a single chip on a schematic so that each part appear near its associated circuitry… while still having Kicad recognize it as the same single part?
All while only showing certain pins on each sub-divided part ?

Thanks for any help.

2

You could make a multiunit symbol (all units different). The units will have the same designator, but each subunit will have A,B,C… appended.

3

Search for multigates digital ICs in libraries to see how they are done.

4

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.