Robert Neumann

Ethernet is hard. What you want to try is an ESP8266 module with external antenna connector + an antenna that's mounted a bit away from the scaler.

Hey, you can try looking at your sync circuit, maybe browse some Atari forums for ideas.

Ah, I looked at this and there were problems. A lot of talk required here >

Just found this old PR >< Okay, I think my worry here was that I have too many obfuscated program flow paths. I'm not sure modifying the conditionals will work...

I think I've probed the registers thoroughly, but it remains truly black box reversing. If you find anything new that can be used, great, but I also already tried hard...

Hey, this is a known problem with the current sync watcher code when using certain MVS board revisions. I need to debug it, but I don't have the time..

The problem is complex. You can read all about it here: https://www.hdretrovision.com/blog/2018/10/22/engineering-csync-part-1-setting-the-stage This machine is going to have one of the mentioned sync issues, and the sync processor / gbscontrol...

So what I take from this is that it helps to hardcode values for 59.18Hz resulting Vfreq?

Oh, you're trying different sources and resolutions, right? I think it's best if you start out with something like a home console and Component or RGBS. Sources like PC VGA...

Please hold out for your other video cables. Standard TV and progressive TV sources work well, and should be your baseline.