xangel

I should have some bare boards like there: http://www.atari.org.pl/forum/viewtopic.php?id=14963 And probably GienekP from that forum can have complete cartridge. 5% of money from his cartridge goes to SpartaDOS team.

I've tested it on Altirra: if You choose machine type: NTSC and turn on NTSC artifacting, You will have green picture similar to Atari ST. If You switch to PAL and turn on NTSC artifacting, You will have purple Floppy works OK. I've tested DOS II+ ATR images on SIO2SD. Also attached Diamond GOS3 Utilities.ATR works fine, but it disappears after reset. Diamond GOS3 Utilities.ATR

Ok, I made some analytics over "Diamond GOS 2 for MaxFlash 1Mbit.atr" It is in TXT file in attachment (sorry but in polish). Next what I did was modifying Diamond GOS 3 to work with MaxFlash 8Mbit. File in attachment. It works on real Atari with MaxFlash 8Mbit and Atari ST mouse. Now can anyone tell me few things? Why I have vertical barred picture, when I saw clean colorful pictures in this thread? How to force it to work with SIO2SD? Because I can't load anything from SIO2SD. Now I'm trying to build real hardware. It will be modified Sparta DOS X 64k cart. As in the description above, I should modify address decoder to decode $D5Dx instead of $D5Ex. It should be done by swithing A4 and A5 lines. Then it should switches off cart when A3 is 1 (decoding $D5D8-$D5DF). Schematic is attached. It works (before modification) as SpartaDOSX 4.22 (64k), but it doesn't work (after modofication) with DiamondGOS3.rom Any suggestions? Diamond GEOS 3 (MaxFlash 8Mbit image).atr AD D0 D5 na AD 00 D5.txt

D5 is 1101 0101 E5 is 1110 0101 So maybe we only need to switch 5'th and 6'th bit in GAL (decoding logic)? I mean A4 and A5.

There are some useful files for this shell: 2600 bankswitch 2.brd 2600 bankswitch 2.sch 2600 Sikor blank.brd 2600 Sikor blank.sch gerbers bankswitch.zip gerbers blank.zip

Unfortunatelly this is not open project, but as far as I know, maybe ZuluGula will have some boards. I don't think this it's good idea to make this project free and open now, because it will be not fair to people, who bought boards untill this moment. I'm talking about Atari ITX. And new 130XE board above - we will see. I don't have enough time for all ideas in my mind

Hello guys Whole bunch of docs is here: https://drive.google.com/drive/folders/1WmXX6DKQbaW8LiOcYj8CrMNuhbNSx19C?usp=sharing And I was gonna do something similar to santosp idea: Atari130XE board 4 SCH.pdf Atari130XE board 4.pdf