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Our APPLE IIc is small computer but, it have some disadvantages,

My wish for APPLE IIc are

Sound card

Lack of sound. very same as APPLE II internal speaker just it has more a volume control.

There is a external sound, External mocking board Mockingboard D. but, it couldn't be 100% compatible with previous announced S/W.  if not compatible to old S/W, it has limited way of use.

CP/M card

Yes, there is a CP/M card and it is not common and rare item.

Few of APPLE II fans have chance to use CP/M system. 

Anyway, CP/M have yery interesting compatible development tools and languages.

And my new plans.

1) Sound card

I considered it several times, how can I build it on APPLE IIc.

There is no slot.

Hence, to make sound card, I need to make Slot signal from APPLE IIc board.

So, I decide to get some signals from CPU.

CPU have all of signal so, it could be good choice to get lines.

So, APPLE IIc can run Mocking board?

No, there is conflict with internal mouse.

Mouse located on C400 (Slot#4) so, it should be switched off.

If address switched off.. 

there is still a problem left.. the IRQ service.

I need to experiment about this IRQ then could decide what could I do for it.

2)Z80 card

Z80 is one of best CPU on 8bits computer system.

And APPLE II CP/M card (Softcard) was very famous in that time. I'm still have a Z80 card(Clone)

But, to apply it on APPLE IIc..I need to make slot signal and some more idea..

Anyway, I'm researching how to handle the z80 CPU by APPLE II.

New device is one of exciting project.

Keep watch me how do I build it.

Anyway, it may fail several times.. but, I'm not afraid it.

This is a utility for SD Music card.

SD_MUSIC.DSK

Due to Some of APPLE II doesn't have lower case fonts.

This is display upper case font only.

You can change the present assigned music instruments to another one.

Please also refer to the user's manual.

If you want to keep your setting, you have to remove the Switch block on the SD Music card or it will return to default every power ON APPLE II.

To use this utility, you need to transfer this disk image to the actual APPLE II computer by ADT or SD DISK II Emulator.

SD Music card should be in Slot#4.

SD Music card has 9 channels and #9th channel already used for noise generation so can't assign.

and also channel #8th may be used for nose channel (It depends on your Switch position, please refer manual).

(Due to some hardware complexity, It doesn't show present music instruments status. sorry for it)

Thanks

Ian Kim

Please refer this to use your SD Music card.

SD_Music_card_user’s_manua(ENG)2.pdf

Thank you

Ian Kim

This is a utility for SD Music card.

You can change present assigned music instruments to another one.

Please also refer the user's manual.

You need to rasnfer this disk image to APPLE II computer by ADT or SD DISK II Emulator.

SD Music card should be installed on Slot#4.

SD Music card have 9 channels and 9 channel already used for noise generation and also channel 8 may use for nose channel too (It's depend on your Switch position).

(Due to some hardware complexity, It doesn't show present music instruments status. sorry for it)

Thanks

DISK Image file: SD_MUSIC.DSK

--- Updated --- 

Some of APPLE II doesn't have lower case fonts.

Please use this utility, It shows only upper case letters.

Thank you.

** UPPER CASE SETUP UTILITY **

SD_MUSIC.DSK

All Music are direct recorded from the SD Music card with Mocking board mode.

Have fun.

SD Music card prototype testing.

It is working graet!!

This board will upgraded to gold plating and little components would be changed.

Please keep watch.

Thanks for waiting.

Ian Kim

I'm researching for new sound card.

And I got good progress now.

Please have a good time to listen old game music. ^^;

It is prototype SD Music card for APPLE II computer.

This sound card compatible with Mocking board but not 100% compatible yet.

Anyway, I will keep doing to make it better.

Thank you

Ian kim