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Proposed addon PCB including optional LEDs to show PS2 activity
https://i.imgur.com/o0gm0Ev.png

Managed to fix the other issue by adding a second PIC16F628a (same .hex file as the other, .pof file for the CPLD needs to be changed) ... now mouse and keyboard work in parallel without ever getting...

Would anyone of you be interested in the gerber files for this? This modification adapts INT to ZS Scorpion 256 (non-turbo). It's small enough to fit under the IC/Socket.
Может ли кто-нибудь из вас...

Managed to answer myself the first question by using the KOE firmware that does not require the КР1878ВЕ1 to be present - it works without the patch wire.
Can anyone answer the second question? If...

(Deepl translation)
Привет,
Недавно я клонировал печатную плату для Z-контроллера. Кажется, я не внёс никаких новых ошибок :)
Из-за того, что микросхема КР1878ВЕ1 для меня недоступна, я...

Has anyone of you tried to center the picture on the compact a bit more? Looks like it is shifted 16px to the right on mine.
There's also one very specific scenario (Alienate Demo, 2 multicolor...

Check DD14 and DD20, potentially DD21
Проверьте DD14 и DD20, возможно, DD21

How exactly does the "HDD Boot" work in the 128 menu? It's not for starting IS-DOS from a NemoIDE - that's what I figured out ;)
ProfROM v41 and Proteus are working great on my Franken-Compact 256...

Fixed PIC16F628A firmware. CS/SS no longer get stuck, G-Mode on DEL, E-Mode on END, Inv-Video on Page Up, True Video on Page down.
Исправлена прошивка PIC16F628A. CS/SS больше не застревают, G-Mode...

Z-Controller (NemoIDE + SD Card + PS/2 Keyboard & Mouse) does NOT work, except for reseting via keyboard (which is rather trivial). Probably due to how !IORD0 is generated. Currently investigating,...

Got NemoIDE fixed.

l_ebl <= '0' when DOS = '1' and A(1) = '0' and A(2) = '0' and M1 = '1' and A(3) = '0' and A(15 downto 8) = "11111111" else '1';
needs to be shortened to in zcontroller.vhdl:
...

Does anyone of you use Z-Controller with the firmware by fomonster? https://github.com/fomonster/zcontroller/tree/master
SD-Card, Keyboard and Mouse work for me, but NemoIDE can't read the...

Releasing the addons shown in the previous posts:
Выпускаем аддоны, показанные в предыдущих сообщениях:

Multi-Ex (Scorpion style Turbo switching by pushbutton or reading ports, ProfROM, Molex...

Older version of Eagle / Старая версия Eagle

Bugfixed (hopefully) gerbers for NemoIDE SMD. Parts are numbered the same as in the schematic found in the first post by Alex_Nemo.
Исправлены ошибки (надеюсь) герберов для NemoIDE SMD. Детали...

Something I've been working on, since ordering already made Z-Controller PCBs is virtually impossible for me at this point. This includes vias without soldermask to easily include the fixes by...

Compact running IS-DOS (chic) after booting from NemoIDE HDD :) Requires swapping ProfROM for KAY ROM.
EDIT: Soldered in the 2nd slot, ZXM-GS and NemoIDE working together nicely to play back a .mod...

Works nicely (haven't fully tested it on real hardware yet) :)
Only feature I'm missing right now is formating real drives directly from Proteus ... then it would be absolutely perfect :)

EDIT:...

Prototypes have been tested (on a Pentagon 1024SL 2.2), they're working ... yet I managed to swap 2 pins when redrawing the schematic for my PCB software of choice (stupid me). I'll uploaded updated...

ZXBus for Compact 256 Turbo works :D
https://i.imgur.com/lOs90bD.png
https://i.imgur.com/0T1KeaF.png
ZXM-GS and SMUC have been tested successfully.

This is amazing and the projected feature set just what I was looking for, for my Compact 256 Turbo with ZXBus and Nemo IDE. So far I've been dealing with WDC 1.62, FATALLx 0.25 (and SCBoot 1.5)...

What program is that? I could check if it works on my Compact, since I added Scorpion style turbo switching (push button instead of switch, 1ffd/7ffd enable/disable turbo). Some Scorpion fixes for...

And done
Placement of DD1/DD2 have been changed, pullups for HD0-HD7 added on the backside (0603 SMD), labels for ZXBus signals added.
I can upload gerber files, but keep in mind this is untested...

Something I've been working on ... placement of DD1/DD2 might be subject to change. Current size is 82x41mm
Кое-что, над чем я работал... размещение DD1/DD2 может быть изменено. Текущий размер -...

I'm currently designing a ZXBus addon for Compact 256 Turbo clones and stumbled upon some questions regarding the ZXBus found on a number of ZX compatible computers....