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공지사항

Hi friend,


I'm working on it.

Firmware task is on going..

Around 80% done and working now as the MSX computer on APPLE II.


It is installed as below


Used 3.5mm phone connector for Audio & Video output.

And applied Auto Switching..

Used PS2 keyboard signal for MSX keyboard.


This is simple joypad. It is fot the VDP option board and needed little modify to fit on APMSX.

Watch this how does it work.


It is almost the same as the prototype board.


APMSX board working as below.





Thanks

Ian Kim

Posted by 이안김

New PCB arrived.

This board optimized using the VRAM and CPLD for less space.

And added sound chip.


Video automatic switcher applied.

Joystick support for the SG-1000 and the Colecovision.

Mode selection Switch SG-1000 /COLECOVISION

Unfortunately I did some mistake and fixed as below.





The Z80 board connector relocated to right side hence it would be as below.



CP/M Turbo7 Z80 card doesn't soldering a connector so, user can solder for their purpose.


In this case, I soldered pin connector male and female for joint.

But, after connect it both, it consume another slot space and may interfere.

Even move the connector to Right on VDP board.

It still consume some space but, some of small card may be usable.


I hoped the VDP option board in slot7 cause there is no other socket on right side so free of space.

If really don't like this combine, maybe can use short IDE40ping cable could be used.


Here are some more running game on COLECOVISION mode.










Here is a Joypad for game play or input device.



This VDP&Sound option board will work under CP/M hence,

It can be also used to make game or other program under CP/M.

Hope to make good fun software under Turbo pascal or Z80 ASM.



New Option board would be prepared some weeks later.

If you have any concerns, please let me know (quick09@gmail.com) .


Thanks a lot

Ian Kim

Posted by 이안김

Added some photos. 

Of course it has sound too.

Hope you like it. :)




































I'm waiting for updated PCB.

New board included for TMS9918 , Sound chip and Joypad port.

So, I can play games. 


As you know, this is not emulator. 

It is real VDP board with sound chip.


Also It works under the CP/M 80.

So, You can even make a game under the CP/M.

I want make some game with this option board.


Thanks;

Ian Kim


Posted by 이안김

I have hard time to make it work as the COLECOIVISON game console.

After several tries with hard learning of structure.

I could run it but, some game only.I don't know the reason why it can't play the other ROM.


First, It shows start screen by ROM BIOS.


And tested with ROM data. 

I can find upte 32KB sized ROM data but, This board ccould support up to 24KB not 32KB due to APPLE II structure.

This board also works with the privous SG-1000 joypad but not the same. Anyway internally will change this convertion to play properly.




I remember this game. 

It is very old game.. maybe when I was 11 years old, I did play it but, not good player .

In that time I didn't know what does carnival means.


It looks he is using his invented wheel. :)

It's CongoBongo..


Time pilot.. It is some similar as the arcade game..Anyway It's fun to me.


Oh my poor frog..

Maybe from that time, we have to consider to build alternate ways to avoid  the road kill.




And I'm trying to run other games but, still no idea what is the problem.

It looks memory fault or NMI fail. Anyway there is no ROM.. it means, it could be overwriten by code..

It having some hard to understand the structure of COLECOVISION...


Anyway, This VDP board isn't purpose for GAME emulator.

I'm want to show what this VDP board could do. but, It is a board for GAME play too.

Please don't forget it is a daughter board of the CP/M card. :)

And enjoy some game when you are tired while you are making your own program.


Thanks

Ian Kim

Posted by 이안김

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