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'2019/05'에 해당되는 글 2건

  1. 2019.05.22 APMSX card introduction
  2. 2019.05.03 Another mate for A2Z80plus card

APMSX card introduction

◆ APMSX / 2019. 5. 22. 19:06

Dear friends,

 

Please refer to the attachment for the APMSX card.

I just make an introduction for the APMSX card and you can know what it can do.

 

After Load BIOS, it will change to MSX computer and APPLE //e still work as nothing happened.

Video output, Keyboard, and Joypad are provided separately for APMSX card.

 

APMSX introduction.pdf
1.48MB

 

I'm making this board for local friends,

After finished, I will put the APMSX card on eBay.

 

Thanks a lot,

Ian Kim

 

 

** If used two monitors, it can work as below 

Left is APPLE //e screen and right is MSX screen.

Both can work at the same time.

 

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Posted by Ian Kim 이안김

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Hi, friends,

 

I've upgraded the VDP 1000plus to VDP MSX plus for A2Z80plus card.

As the naming, now it supports sound on MSX game.

Of cause, The Sega1000 and Colecovision also support as usual.

It could be a replacement of VDP 1000 plus board.

VDP MSX Plus board for A2Z80plus

This board used bigger CPLD and removed some TTL chips and put AY3-8910 for MSX sound.

The S/W show SG/MSX, This is the position for MSX.

 

I've recorded one video for your understanding.

Both games sound doesn't sync as picture, it isn't this board issue, it my  video capture device is strange..

Sorry for this.

 

also game on Colecovision mode.

 

 

You could find it on eBay some weeks later.

 

*VDP board used SRAM instead of DRAM for less heat and less soldering way.

You can find good information here.

https://hackaday.io/project/160851-tms9918-vdp-with-sram-video-memory

 

Mode selector switch still there but, user can change the mode by I/O port.

Hence, SG/MSX mode with Colecovision mode can change by the program.

But mode follows the position of switch unless change mode by I/O port.

 

Thanks

Ian Kim

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A2Z80 plus run CP/M on HDD  (0) 2020.07.12
Another mate for A2Z80plus card  (0) 2019.05.03
A2Z80Plus ready  (0) 2019.01.26
PCPI Z80 Plus coming soon..  (1) 2018.09.10
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Posted by Ian Kim 이안김

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