VGA adapter with GALs

#1 · December 7, 2025, 9:12 am

This is a demonstration project for my GAL22V10 and GAL16V8 scripted components.

You can use these components in your own projects. You can load different configurations to GALs. There is a python script (jed2hex) in the zip file to convert your jed files.

vga demo

These components are not perfect. There may be timing issues, but you may solve them by decreasing propagation delay.
The simulation of these components are very slow, be patient.

Uploaded files:

vga_demo.zip

Fizik_S has reacted to this post.

#2 · December 8, 2025, 7:18 pm

Some updates:
- jed2hex bugfix
- GAL20XV10

Uploaded files:

gal_update.zip

Mikou has reacted to this post.

#3 · January 30, 2026, 5:31 pm

Your code works perfectly; I tested it with ATF 22v10 files compiled by Wincupl II.

Incredible: 40 years later, Microchip released an update to Wincupl !!! It's just a working Windows frontend.

Under Linux, the command line works perfectly with Wine.

Thank you so much for sharing; it's exactly what I needed to move away from Proteus ;o)

#4 · January 30, 2026, 10:36 pm

Thank you for your kind words.
I'm happy that my work helps you.