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공지사항

'◆ Z80 Card'에 해당되는 글 19건

  1. 2019.01.26 A2Z80Plus ready
  2. 2018.09.10 PCPI Z80 Plus coming soon.. (1)
  3. 2018.06.07 Z80 Applicard with VDP Option board
  4. 2018.05.24 Another PCPI Z80 card

A2Z80Plus ready

◆ Z80 Card / 2019.01.26 11:56

A2Z80Plus is new Z80 card for APPLE II.


It compatible to PCPI Appli-card and enhanced for VDP-1000plus.

It runs as 16Mhz PCPI Appli-card andmore fast SG1000 / Colecovision game console.

and having many functions you never see even similar one with other Z80 cards.



VDP-1000plus  with joypad for SG1000 and Colecovision game play

  





Also could run MSX BASIC



I'm making manual.

Hope to like it on your APPLE II.


Thanks;

Ian Kim




'◆ Z80 Card' 카테고리의 다른 글

A2Z80Plus ready  (0) 2019.01.26
PCPI Z80 Plus coming soon..  (1) 2018.09.10
Z80 Applicard with VDP Option board  (0) 2018.06.07
Another PCPI Z80 card  (0) 2018.05.24
Z80 co-processor board for APPLE //c  (0) 2018.05.20
Another Z80 co-processor card for APPLE II  (0) 2018.05.15
Posted by 이안김

Hi friends,


PCPI Z80 card is one of Z80 card for CP/M.

This PCPI Z80plus have flexibility and faster Z80 run and have extension port for more fun functions.

It works with VDP Option board which has TMS9918 VDP and Sound chip so could run SEGA and Colecovision games also could use to make own program.


http://quick09.tistory.com/1399


Function testing..


PCPI Z80 Function fully working

Turbo Speed 3.58Mhz, 4Mhz, 8Mhz, 16Mhz working.

VDP Option board working, Tested Sega Games.. other games would work... will test soon.

http://quick09.tistory.com/1400?category=552730




But, this testing verion PCB has Missing one line....

Another fixed version will make soon.


* not tested BUS control on APPLE II side..

It have to test it but, I need 6502 source code for TMS9918 and Sound chip.

If someone have simple 6502 code for TMS9918 testing.. It would be nice demo sample for it.

Anyway, the Address of TMS9918 is same as SEGA1000.

Please help for good sample codes then I could test Z80 BUS devices direct on APPLE II(6502).


Thanks for waiting!

Regards;

Ian kim


**

'◆ Z80 Card' 카테고리의 다른 글

A2Z80Plus ready  (0) 2019.01.26
PCPI Z80 Plus coming soon..  (1) 2018.09.10
Z80 Applicard with VDP Option board  (0) 2018.06.07
Another PCPI Z80 card  (0) 2018.05.24
Z80 co-processor board for APPLE //c  (0) 2018.05.20
Another Z80 co-processor card for APPLE II  (0) 2018.05.15
Posted by 이안김

Dear friends,


Here is my second step for Appli-card Z80 with VDP Option board.


What is VDP Option board?

http://quick09.tistory.com/1375?category=552730



It starts to support the VDP Option board with 3.58Mhz Original speed.



Both of game are bigger than 32KB and it was hard to load on Z80 Turbo7 structure.

But, New board could support it without memory conflict problem.

Even Turbo speed support but the VDP chip can't run faster speed..


So, This project just remain turbo step control.

It would support some sort of clocks 3.58Mhz 7.16Mhz and 4Mhz, 8Mhz, 16Mhz...

I want the smooth step switching and VDP support even on high clock speed..


* Loading program is very similar the case of the Z80 Turbo7 card with VDP Option board..


Thank you very much;

Ian Kim

'◆ Z80 Card' 카테고리의 다른 글

A2Z80Plus ready  (0) 2019.01.26
PCPI Z80 Plus coming soon..  (1) 2018.09.10
Z80 Applicard with VDP Option board  (0) 2018.06.07
Another PCPI Z80 card  (0) 2018.05.24
Z80 co-processor board for APPLE //c  (0) 2018.05.20
Another Z80 co-processor card for APPLE II  (0) 2018.05.15
Posted by 이안김

Another PCPI Z80 card

◆ Z80 Card / 2018.05.24 19:21

Dear Friends,


Another Appli-card is building now.

I'm doing firmware job and hope to make it work soon.


This board is simple design and would work with VDP Option board.

Z80 would work 3.58Mhz and 7.16Mhz but will try Maximum speed of CPU.

Please keep watch it. 

Thank you very much... :)



'◆ Z80 Card' 카테고리의 다른 글

PCPI Z80 Plus coming soon..  (1) 2018.09.10
Z80 Applicard with VDP Option board  (0) 2018.06.07
Another PCPI Z80 card  (0) 2018.05.24
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
Posted by 이안김

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