Just4Fun_J4Fun's profile picture. (aka SuperFabius).
This channel is about the toys I'm currently playing with...

Just4Fun

@Just4Fun_J4Fun

(aka SuperFabius). This channel is about the toys I'm currently playing with...

USB-C adapter for Z80-MBC2, V20-MBC and 68k-MBC github.com/SuperFabius/A0…

Just4Fun_J4Fun's tweet image. USB-C adapter for Z80-MBC2, V20-MBC and 68k-MBC
github.com/SuperFabius/A0…
Just4Fun_J4Fun's tweet image. USB-C adapter for Z80-MBC2, V20-MBC and 68k-MBC
github.com/SuperFabius/A0…

Hi all, the Parallel Printer (SPP) Emulator Shield is out! 😎 hackaday.io/project/194029


#V20MBC A new IOS for the V20-MBC is out! * Added parallel printer support (CP/M 2.2 and CP/M-86); * Added serial speed selection; * Baud Recovery virtual button; * Atmega1284 support. Update both the FW inside the Atmega and the SD image from here: hackaday.io/project/170924…

Just4Fun_J4Fun's tweet image. #V20MBC
A new IOS for the V20-MBC is out!

* Added parallel printer support (CP/M 2.2 and CP/M-86); 
* Added serial speed selection; 
* Baud Recovery virtual button;
* Atmega1284 support.

Update both the FW inside the Atmega and the SD image from here: hackaday.io/project/170924…
Just4Fun_J4Fun's tweet image. #V20MBC
A new IOS for the V20-MBC is out!

* Added parallel printer support (CP/M 2.2 and CP/M-86); 
* Added serial speed selection; 
* Baud Recovery virtual button;
* Atmega1284 support.

Update both the FW inside the Atmega and the SD image from here: hackaday.io/project/170924…

#Z80MBC2 New SD image (SD-S220718-R290823-v2.zip) for the Z80-MBC2 adding the support for the SDCC cross compiler, including the IOS interrupts handling (the IOS firmware is the same and doesn't need any update). Download from here: hackaday.io/project/159973…


#Z80MBC2 New IOS for the Z80-MBC2 is out! * Added parallel printer; * Added serial speed selection; * Baud Recovery virtual button; * Fuzix support; * Atmega1284 support. Update both the FW inside the Atmega and the SD image from here: hackaday.io/.../159973-z80…...

Just4Fun_J4Fun's tweet image. #Z80MBC2
New IOS for the Z80-MBC2 is out!
* Added parallel printer;
* Added serial speed selection;
* Baud Recovery virtual button;
* Fuzix support;
* Atmega1284 support.

Update both the FW inside the Atmega and the SD image from here: hackaday.io/.../159973-z80…...

New IOS version for the V20-MBC adding MSDOS v2.11 support is out! Please update both IOS and the SD content: hackaday.io/project/170924…


The original PDP-11 paper tape BASIC running on my "Frankenstein" PDP11/03 with a soviet KR1801VM12 CPU...

Just4Fun_J4Fun's tweet image. The original PDP-11 paper tape BASIC running on my "Frankenstein" PDP11/03 with a soviet KR1801VM12 CPU...
Just4Fun_J4Fun's tweet image. The original PDP-11 paper tape BASIC running on my "Frankenstein" PDP11/03 with a soviet KR1801VM12 CPU...

The Azz!Duino board is out! All the details to build it here: hackaday.io/project/189549


Testing the first Azz!Duino board (Lite version, without the aux 9-12V DC input circuitry) with a W806 MCU... 😆

Just4Fun_J4Fun's tweet image. Testing the first Azz!Duino board (Lite version, without the aux 9-12V DC input circuitry) with a W806 MCU... 😆
Just4Fun_J4Fun's tweet image. Testing the first Azz!Duino board (Lite version, without the aux 9-12V DC input circuitry) with a W806 MCU... 😆

Started to test the KR1801VM2 CPU (PCP11 "clone") Application Board (APB) with the Studio 68. Here a first "hello world" test...

Just4Fun_J4Fun's tweet image. Started to test the KR1801VM2 CPU (PCP11 "clone") Application Board (APB) with the Studio 68. Here a first "hello world" test...
Just4Fun_J4Fun's tweet image. Started to test the KR1801VM2 CPU (PCP11 "clone") Application Board (APB) with the Studio 68. Here a first "hello world" test...

Starting to play with a W806 MCU... 😁

Just4Fun_J4Fun's tweet image. Starting to play with a W806 MCU... 😁

Currently testing the Z80 Application Board + Z80 Blinking Leds + Studio 68...

Just4Fun_J4Fun's tweet image. Currently testing the Z80 Application Board + Z80 Blinking Leds + Studio 68...
Just4Fun_J4Fun's tweet image. Currently testing the Z80 Application Board + Z80 Blinking Leds + Studio 68...

Rendering of the final version of the "KR1801VM2 Application Board" (APB), a plug-in board for the Studio 68 using a soviet KR1801VM2 CPU (PDP11 "clone").

Just4Fun_J4Fun's tweet image. Rendering of the final version of the  "KR1801VM2 Application Board" (APB), a plug-in board for the Studio 68 using a soviet KR1801VM2 CPU (PDP11 "clone").

For those wanting play with the Kevin Price porting of MS-DOS v2.11 on the V20-MBC, here all the files needed with a special IOS version supporting the MS-DOS OS. Read carefully the instructions on the github page: github.com/SuperFabius/A2…


Testing the VGA adapter for the Studio 68 board. Here a simple test using the STM32 as processor:

Just4Fun_J4Fun's tweet image. Testing the VGA adapter for the Studio 68 board. Here a simple test using the STM32 as processor:
Just4Fun_J4Fun's tweet image. Testing the VGA adapter for the Studio 68 board. Here a simple test using the STM32 as processor:

Started to test the Z80 Application Board (APB) + Studio 68. In this test the RAM is inside the FPGA and preloaded with a Z80 HALT instruction (the 68SEC000 CPU on the Studio 68 is held in high-Z). The Studio 68 here acts as slave to the Z80 APB.

Just4Fun_J4Fun's tweet image. Started to test the Z80 Application Board (APB) + Studio 68. 
In this test the RAM is inside the FPGA and preloaded with a Z80 HALT instruction (the 68SEC000 CPU on the Studio 68 is held in high-Z). The Studio 68 here acts as slave to the Z80 APB.

#V20MBC Thanks to Kevin Price now MS-DOS 2.11 is running on the V20-MBC! See: github.com/keyvin/v20mbc-… V20-MBC: hackaday.io/project/170924

Just4Fun_J4Fun's tweet image. #V20MBC
Thanks to Kevin Price now MS-DOS 2.11 is running on the V20-MBC!
See: github.com/keyvin/v20mbc-…
V20-MBC: hackaday.io/project/170924

The "Z80 Application Board" (APB) PCB is just arrived...😀 Thanks to PCBWay that kindly offered me to do this beautiful 4-layer PCB! The Z80 APB allows to connect a Z80 to the Studio 68 board, so it is possible to make "experiments" with custom I/O synthesized inside the FPGA...

Just4Fun_J4Fun's tweet image. The "Z80 Application Board" (APB) PCB is just arrived...😀 
Thanks to PCBWay that kindly offered me to do this beautiful 4-layer PCB!
The Z80 APB allows to connect a Z80 to the Studio 68 board, so it is possible to make "experiments" with custom I/O synthesized inside the FPGA...

#PDP11 Starting to make first tests with the KR1801VM2 CPU using a custom board...

Just4Fun_J4Fun's tweet image. #PDP11
Starting to make first tests with the KR1801VM2 CPU using a custom board...
Just4Fun_J4Fun's tweet image. #PDP11
Starting to make first tests with the KR1801VM2 CPU using a custom board...

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