Mail Archives: geda-user/2012/11/14/11:42:23
On 11/14/2012 10:55 AM, Peter C.J. Clifton wrote:
> In the gEDA world, this isn't slotting per-se, but having multiple
> symbols to connect different parts of a complex chip is common practice.
>
> What I would do is to ignore slots, and make two separate symbols (if
> you want to separate transmit and receive). Each will be instantiated
> with the same refdes (e.g. OPTO1 or something like that), and the
> netlist will "just work". Each symbol can just use the pins it requires.
>
> This probably won't play well with the renumber tools out there, and
> I'm not sure it is a good idea to try and trick them by invoking
> slotting.
Just for the record, refdes_renum_slots intentionally support this too.
I have an FPGA in which is split into multiple banks. If --force is
specified on refdes_renum_slots, any symbols in a group stay in the same
group even if it gets assigned a new refdes number. Then gattrib_csv
can be used to edit the properties of the FPGA using LibreOffice and
when imported back in it duplicates the data into every symbol (bank) in
the group.
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