Madhatter

Thanks for the fix. Please scroll to the link: "Megacarts_Hechos_con_Megacartstudio.zip"

https://gamemasterquilpue.000webhostapp.com/Atari_Megacart.htm

I built the cartridge. It works! http://spaceinvader.comuf.com/Multicartridge_Atari_con_CPLD.htm Thanks for sharing.

Do you have the .jed file to program the CPLD?

Ok, thanks.

Please tell me what address lines are marked as "?".

Very good job, I 'm trying to build. The schematic is incomplete , missing the pins that go to the CPLD , there are 13 pins unidentified. Could you show complete schematic circuit? Eric

fix3 is perfect! Finally, the american TV display the menu! Soon more info, thanks Alex

Fix2 not work in my TOSHIBA CRT 21" NTSC Made in USA. We need another ntsc tester...

Not work... No vsync

Tests on real hardware. I made a wired multicart 64/128KB, and tried some roms. All ok, it works, change to the games, and the games run perfect, but the menu remains PAL, and does not work on a NTSC console and TV. Video: I put the NTSC mode properly, here it is the code: megacardmenu_v2_2_TEST_pal.asm megacardmenu_v2_2_TEST_ntsc.asm In Stella, works ok, but in actual hardware, no. Maybe someone can fix this ...

Thanks Alex!

Thanks to alex_79 and DrWho198 for your patience. The last code it seems PAL only, (strange colors), not work in NTSC. And, Mouse Trap not work at all. The bin:megacardmenu_v2_2fix+games PAL ONLY.bin This is, at the moment, the best code (for me ) : megacardmenu_15_games_4K_ntsc_test1.asm The problem is Mouse Trap corrupt. The rest is perfect.

Please check megacardmenu 15 games 4K _fail.rar

megacardmenu_v2_2.asm not work... menu is ok, but games don't run (yes, I add the games). Or, I'm doing something wrong...