Create symbol for hierarchical

QSPICE
1

I see the several posts on symbol creation for hierarchical blocks.
In KSKelvin’s guide, I’m still on unclear on slide 22 specifically. The process is:

  1. draw schematic with ports
  2. create another schematic where it will be used
  3. draw hierarchical box
  4. copy that box
  5. paste into a new symbol editor, which can be edited
    But now what? The symbol doesn’t get updated in the parent schematic, and if I copy the edited symbol back to it. the pins don’t show up. So how is the edited symbol actually used?
2

The purpose of that section is to explain how to create a symbol file for hierarchical blocks. Hierarchical blocks involve calling a .qsch file instead of using a library with .subckt or .model files.

Creating a symbol file specifically refers to creating a .qsym file.

Once you have created and saved a symbol using the .qsym format, you can place it into the schematic using either of the following methods:

  1. From your file explorer, locate the .qsym file and drag it into the schematic. This action will place the symbol in the schematic.
  2. In Qspice, go to View > Symbol & IP Browser. Add the symbol path in this window. Now you can select and drag your symbol from this window onto the schematic.
3

Thanks a lot. That was a missing piece!

4

I will update the document later today. The guide was originally created for my own reference, and I didn’t write it thoughtfully. It’s possible that there are some methods included that may seem less optimal now. When I started these guides, I wasn’t very familiar with Qspice…

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5

I’ve learned from the guides all the same. It would be great if the Help/Documentation had anything close to what you’ve compiled.