Lighttech A2000 Scan Doubler

[A2K_Newb]

Hi Everyone.

Few months ago, I found this project:
https://www.lighttech-hg.de/index.php/open-source-projects/a2000-scandoubler

A low cost video scan doubler for my A2000. I had some boards made, bought some parts, and assembled it over the last few weeks.

This weekend, after fighting with my Xilinx cable, and the 14.7 version of ISE Webpack in a VM, I got the .jed file into the CLPD.

I get a flicker of a distorted workbench, then black, rinse repeat, on my LCD

I think it may have been designed with a PAL amiga in mind, and mine is NTSC.

I'm not sure where to even start troubleshooting.

Has any one else built one of these?

Joe

[trekiej]

Any new info. on this device?

[AJCopland]

Has anyone tried contacting the author to ask?
https://www.lighttech-hg.de/index.php/impressum

[A2K_Newb]

Yes. I had emailed the address in the aminet package when I finished building the project this weekend.

He responded last night and I sent some video of what it was doing.

It does sound like the timing is off.

Is there any amiga documentation on the timings of the video slot for both a PAL and NTSC amiga? The hardware reference manual has a bit about signals, but not too much.