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공지사항

Dear Customers and Friends,

 

SD MIDI ][+ Player Version 0.2H

It has enhanced Hidden Reading.

System and device Requirments

1) Mininum 64KB APPLE ][

Works and tested on APPLE ][+, APPLE //e and APPLE IIgs

2) HDD Emulator, SD DISK II or others are recommended.

FDD also works but, will have delay if song file is larger than 24KB

3) SD MIDI ][+ card or the Passport compatible MIDI card must in SLOT#2.

 

 

* Standard licensed version has no limit of MIDI file size.

* Only MIDI format 0 support. Other format of MIDI song have to converted MIDI 0 format.

   Please visit here for converter https://www.anvilstudio.com/

 

-----------For other Passport compatible MIDI card owners-----------

Please order the licensed version and send email to me.

 

* DEMO Version (It only can play upto 12KB MIDI file).

Unzip it and copy the MIDIDEMO.HDV to your HDD Emulator.

MIDIDEMO.zip
0.23MB

 

To use MIDI Player,

1) Passport compatible MIDI card must in SLOT#2

2) HDD emulator required

3) Min 64KB memory of APPLE II

 

** To SD MIDI][+ Owners **

Please email me for your license.

 

What is the SD MIDI ][+

https://quick09.tistory.com/1347

 

SD MID][+ (Passport compatible MIDI card)

Dear friends, I'm pleased to announced this new board for APPLE II enthusiasts. SD MIDI][+ card is the Passport compatible and could play on Ultima V. And having unique function such as the Bridge O..

quick09.tistory.com

 

 

Thanks a lot

Ian Kim

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Posted by Ian Kim 이안김

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Dear customers and Friends,

 

SD MIDI II+ Player did update for more functions and accurate play.

 

In this version, It used a Hidden reading method when it need more data from Disk and results having seamless polaying.

And user can select own Level meter char. by pressing 'B' and 'N' on APPLE II.

Playing tempo tuned more accurate.

Just have a time to watch how it's playing as under.

https://youtu.be/3qIji9rbLL0

Thanks a lot

Ian Kim.

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Dear Friends and Customers,

 

This version optimized some more for the Level meter and added on left as a channel indicator(?).

And level meter speed was incresed and good now.

It is the best what I can do with 1Mhz 6502 APPLE II.

 

Just watch the video.

 

Thanks a lot.

 

 

 

What is the SD MIDI ][+ ?

https://quick09.tistory.com/1347

 

SD MID][+ (Passport compatible MIDI card)

Dear friends, I'm pleased to announced this new board for APPLE II enthusiasts. SD MIDI][+ card is the Passport compatible and could play on Ultima V. And having unique function such as the Bridge O..

quick09.tistory.com

It isn't a freeware, I will provide for SD MIDI ][+ buyers for free.

It would be announced when It finished.

 

Thanks a lot;

Ian Kim

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Dear Friends and customers,

It's up to what I've been working on recently.
The biggest change in this version is the player used as far as the hardware supports it.
It support a progressive bar (level meta).
It is very tight to support this in the 1Mhz APPLE II.
It was made using even the hardware timer and interrupt supported by the SD MIDI II card.
It is quite difficult to support it.
After a lot of trial and error, I finally decided to use a timer interrupt for simultaneous processing.

 

For reference, these progressive bars are the 16 channels of MIDI, from 0 to 15 from the top.
It seems that it is too difficult to handle this with interrupts in Apple2.
It's so hard that I don't want to bother you anymore.

It works fine with or without an accelerator card but, If you use an accelerator card, the CPU load is reduced, so the tempo of the sound can come out a little more naturally. This is because the load on the interrupt side is large.

Since you have to use PRODOS, you can't completely push the IRQ routine away, so this is the best what I can do.
If I increase the speed of the progressive bar quickly, the CPU load increases, so this is the last choice.

 

it is a thankful result with APPLE II.

Now I have waht I wanted.

 

Please enjoy listening.

https://youtu.be/kf90YvsiFVc

 

 

** Some more information **

- MIDI file format 0 is supported. Other formats can be played smoothly by converting them to MIDI 0.
- There is no MIDI file size limit. However, if the file is large, a slight delay may occur. This is sometimes canceled by the internal timer when a delay occurs, but in some cases, it cannot be canceled and may exist as a sound delay.

 

It isn't a freeware sorry bout it but, I will provide SD MIDI][+ customers for free.


Thank you

Ian Kim

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Posted by Ian Kim 이안김

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Dear friends and customer,

 

I'm making MIDI Player for SD MIDI ][+ card.

I have good progess as under.

 

https://youtu.be/ZTlHt_2uXoQ

MIDI Player works on APPLE //e and APPLE ][+(64KB).

 

It isn't a freewarwe but, I will provide SD MIDI][+ buyers without charge.

 

Enjoy MIDI music on our APPLE II with SD MIDI ][+.

 

Thank you!

Ian Kim

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Dear Friends and customers,

 

I'm trying to make a MIDI Player for SD MIDI ][+ card.

It is just a testing by BASIC to check it it works .

https://youtu.be/wNLzpdOJ5Uk

After complete, I will provide it for SD MIDI ][+ buyers for free.

 

Thanks for your buying of SD MIDI ][+ card.

Ian Kim

 

 

 

 

 

 

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  1. 2021.06.15 03:09 Johnson Lam  댓글주소  수정/삭제  댓글쓰기

    Hi Ian,

    Will you still working to improve the compatibility with Music Construction Set? The card sounds not quiet right in MCS.

    Thanks.

    • 2021.06.20 16:00 신고 Ian Kim 이안김  댓글주소  수정/삭제

      Hi,
      This is a post about MIDI cards.
      You put wrong location.
      And You are maybe talking about SD Music Deluxe card.

      The compatibility for the MCS isn't easy.
      I will check when I have a time.
      Mockingboard emulation is really very complicated and FM OPL chips can't make the same as AY3-8910.
      Anyway, I need dig more to make more similar.
      Thanks

Dear Friends and customers,

 

 

A2 OverDrive is start to preparing PCB and parts.

I will order PCB soon and parts.. (parts price really very high now.. x3-x5 times becam higher)

 

I spent many of times not only for me but also for Programers and hacker of APPLE II.

Please try to find fun on the card.

 

Here is the A2 OverDrive introduction for more understanding.

'

https://drive.google.com/file/d/1ngjR27VpbYu-5Wcg0mP1yrwwpku0yMQF/view?usp=sharing 

 

A2 OverDrive introduction.pdf

 

drive.google.com

 

youtu.be/CvvzKiOJkkA

 

* Note;

RAMWORKS memory provided 384KB not 448KB

8bits Input port not 7bits input.

Added one 4mS Timer signal detecting

 

Speed comparing

https://youtu.be/jENz3w-1TC4

 

Sales start at the end of June.

 

Preorder will accept from soon.

I will put the price and Order button on here.

 

 

Thanks a lot

Ian Kim

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Posted by Ian Kim 이안김

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Dear Friends and customers,


SD DISKII Plus emulate two FDD or two HDD and It has a good Menu drived image selector.

On HDD emulation, SD DISKII Plus work as block devices and supprt two 32MB HDD emulation.
It doesn't accept smartport function call internally.

I have some reports about non working HDD image(800k).
And I found that those are using smartport MLI without checked the type of device.

Boot ROM already indicated as a non smartport device but, Smartport call happed on some program without check type of device and failed to access on some HDD images.

Anyway, I decided to support Smartport call on SD DISKII Plus.
I'm learning for smartport fuction calls.

It have to both on ROMBIOS and Firmware on SD DISKII Plus.
It would take some time please wait for new BIOS.

Unfortunatelly, It might to be updated ROM chip.
It require a ROM writer to update with new code.

New ROMBIOS and firmware would be annouced when It finished.

What will be change?
1) Smartcall program(image) will work properly.
2) More HDD drives can use now it has two HDD but, more atleast 4.
3) More block size accepted max 8G.

No change on 5.25" FDD emulation 

If you have any question, please let me know.

Regards;
Ian Kim

Posted by Ian Kim 이안김

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