LAnalizer problems exporting VCD of bus

#1 · October 17, 2025, 2:23 pm

Hello,

I used the mcs51_extPGM.sim1 as a start point for my simulation. It was very helpful.

My goal is to record the activity on the bus for an 80C32 device in a VCD file.

When I use the LAnalizer, the view on the screen is of the bus. However when I use the export function the VCD file seems to be a problem. GTKwave reports an error. The header section seems to indicate that only one pin of the bus is being recorded.

The format of the VCD file itself is not what I would expect.

I am attaching a zip with my example.

Thanks for your thoughts

Uploaded files:

mcs51_extPGM_edit.zip

#2 · October 17, 2025, 6:26 pm

Hi.

By now bus inputs to VCD file are not supported.

#3 · October 17, 2025, 6:30 pm

Understood.
Is there a way to increase the number for probes on the LAnalizer?

Or can I use more than one LAnalizer in my circuit?
I need 8 bits of P0 & ALE as a minimum.