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공지사항

'◆ My Z80 Card'에 해당되는 글 31건

  1. 2018.05.02 Z80 board for APPLE //c
  2. 2017.11.12 APMSX(MSX) card external SLOT is working
  3. 2017.06.09 VDP Option board completed
  4. 2017.06.04 APMSX card being upgraded


I would like to inform you I've started for Z80 softcard board for APPLE //c.


It would be sit over the CPU socket on APPLE //c same method as the Mockingboard 4c

(http://quick09.tistory.com/1385)

It would work as you have Z80 softcard slot#4 and could RUN CP/M OS on your APPLE //c.

What is CP/M?  https://en.wikipedia.org/wiki/CP/M 

You could run FORTRAN 80, COBOL 80, dBase II, Turbo Pascal etc..

Mostly for study computer Languages and productivity applications not for games... 


Z80 card for APPLE //e was done as Z80 Turbo7 but, now it will go for APPLE //c.

This board is just prototype board and there are several missing..


Anyway someday, we could have Z80 co-processor board on APPLE //c.


Keep watching.


Regards;

Ian Kim









'◆ My Z80 Card' 카테고리의 다른 글

Z80 co-processor board for APPLE //c  (0) 2018.05.20
Another Z80 co-processor card for APPLE II  (0) 2018.05.15
Z80 board for APPLE //c  (0) 2018.05.02
APMSX(MSX) card external SLOT is working  (0) 2017.11.12
VDP Option board completed  (0) 2017.06.09
APMSX card being upgraded  (0) 2017.06.04
Posted by 이안김

Hi, Friends,


I trying to make MSX External SLOT on APMSX card.

It took too long time to make it work.

Hardly found some error on the board and fixed.

Also needed to adjust circuits on CPLD as MSX one.


Finally I have working screen as under.

It is just game screen but, this game is from ROM pack not data loading from APPLE //e.

It has some stability issue with external ROM. I'm working on it now.


If I didn't plan to make a external SLOT on APMSX, I could complete it but, It took long time for ultimate MSX card in APPLE II.


Keep watching it..


Thanks;

Ian Kim

'◆ My Z80 Card' 카테고리의 다른 글

Another Z80 co-processor card for APPLE II  (0) 2018.05.15
Z80 board for APPLE //c  (0) 2018.05.02
APMSX(MSX) card external SLOT is working  (0) 2017.11.12
VDP Option board completed  (0) 2017.06.09
APMSX card being upgraded  (0) 2017.06.04
APMSX(MSX) card have TURBO 7.16Mhz speed  (0) 2017.05.30
Posted by 이안김

Hi, Friends,


Here is completed VDP Option board.


Board named as VDP-1000 Plus.

It can run SG-1000 Games and some COLECOVISION Games too.


This board can be put on the CP/M Turbo 7 card as under.

It look little strange but, practical design for neighbor card.


It can be installed as this.


The cable are from left; AV connector, APPLE II Video Input for Auto Switching and Joyport.


Watch some videos. 

Your APPLE II could play Sprite games with VDP-1000puls.


You can find ROM file here.

http://doperoms.com/roms/Sega_Sg-1000/ALL/0.html


ROM File transfer to APPLE II and can run by small loader.

Manual will be sent for buyer.


The SG-1000 Mode

 
and more games run....


The COLECOVISION Mode
and more games run.

http://quick09.tistory.com/1368




I'm waiting for PCB of joypad and then it could be a ready for sale.

Please wait some days more.


Thank you very much.

Ian Kim




'◆ My Z80 Card' 카테고리의 다른 글

Z80 board for APPLE //c  (0) 2018.05.02
APMSX(MSX) card external SLOT is working  (0) 2017.11.12
VDP Option board completed  (0) 2017.06.09
APMSX card being upgraded  (0) 2017.06.04
APMSX(MSX) card have TURBO 7.16Mhz speed  (0) 2017.05.30
APMSX (MSX card for APPLE IIe) is running  (0) 2017.05.21
Posted by 이안김

Previous APMSX card is enough to run basic of MSX function 

but, I want some more enhanced function in it.

Now, I have new board.



What is different.

Used 144 pin CPLD as main controller.

I have more 32 IO pins now it is good enough.


I'm tring to add Konami 8K mapper and now it is working as below.

Now just support 128KB but, will extend it up to 256KB.


APMSX board have own 512KB SRAM and it support virtual slot for ROM cartridge emulation.

So I can load ROM file and can run without physical ROM cartridge. (Anyway, APMSX will have a external physical SLOT. so user still can use own cartridge)

And it accepted just 32KB ROM data but, now I can load 128KB ROM data and made it run properly.

The mapper is very different method unlike accessing APPLE II AUX memory .



I'm still having some more idea with APMSX but, I think, I should not expand too much on this board.

And It will support 256KB Konam 8K Mapper and little more? maybe.. then will be closed.


I will check the signal for External SLOT.

I've prepared for this but, have to test. 


Let's see the next what will happy with our APPLE II.
Thank you.

Ian Kim




Posted by 이안김

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