Hi Jim,
I am struggling with hierarchical schematics too, but the idea is to make a
single board from many sub-sheets, not seperate PCBs from each sub-sheet.
Suppose you were building an audio amplifier.
Maybe the circuit is complex and to make it more readable you would break it
into sections such as PSU, pre-amp, power amp, protection circuit etc.
The final result will still be one PCB.
If, say, the the front panel was a seperate PCB, you would still have to do a
seperate circuit.
You could use hierarchical schematic for the overview of the unit, but not for
the individual PCBs, as I understand it anyway.
My problem is trying to resolve ERC errors with power flags / Global labels,
but that's another story.
--- In [email protected], "jimofc300" <j...@...> wrote:
>
> Hi,
>
> Still new to KiCAD.
>
> I hope there's a simple solution to my rather simple problem, since it must
> be very common. I haven't been able to find one in the docs or by poking at
> KiCAD. Can someone help?
>
> I have a design that will have three PCBs within a lot of other hand wiring,
> such as switches, panel connectors, a power module, and so on. I've created a
> hierarchical schematic that leads to each eventual PCB as a separate
> schematic sheet. I want to convert each of these three schematics to PCBs,
> one-by-one. KiCAD, however, seems to think that I want a PCB of the entire
> mess, not just the single sheet schematic. It compains that component numbers
> haven't been assigned to the higher items in the hierarchy (they haven't).
>
> So far, all I've figured out is to copy the schematic to another file and
> make a PCB from it. While this works, it's sloppy and automatic
> back-annotation seems impossble.
>
> Is there any way to force KiCAD to make a PCB of a single schematic sheet,
> even when buried within a larger hierarchical design?
>
> Thanks,
> Jim
>
