CDTV - CD drive emulator board possible? - Page 2

alexh · 22 December 2022, 15:02

Quote:

Originally Posted by pandy71

http://blog.worldofjani.com/?p=5752

Nothing of any use (WRT ODDE/Bridge) here.

The command protocol is documented somewhat in the Linux MKE->ISA bridge driver. And probably in the WinUAE CDTV emulation source code.

https://www.chiark.greenend.org.uk/~...nasoniccd.html
https://web.archive.org/web/19990429...pcd/index.html
https://github.com/slp/osfmk-mklinux...on/cdrom/sbpcd

stevelord · 22 December 2022, 17:06

Based on https://www.chiark.greenend.org.uk/~...nasoniccd.html if the protocol is similar it might be easier to make something that talks CDTV on one end but operates on a drive image at the other. A bit like an internal CDTV Gotek, maybe with a WB tool to change the CD image.

Storage is cheap, I imagine the entire CDTV library could fit on an SD card these days.

simon_m74 · 22 December 2022, 17:44

Lots of talk here about emulating the CD drive...
I want to replace the CD drive if its possible - lucky lots of talk on that too!

As I said, Amiga 4K Checkmate first... I plan to finish design by end of Jan.

ElectroBlaster · 29 December 2022, 16:23

If the solution is ever found/created!

This picture I found in amongst my huge archive of random files, gives an idea how it may look with a new cd-drive fitted:

I have no idea where this picture came from?

ElectroBlaster · 29 December 2022, 20:52

More digging with google revealed this:

http://www.computinghistory.org.uk/d...rface%20Board/

drHirudo · 04 January 2023, 06:44

Is it possible to use something like this:
https://terraonion.com/en/producto/terraonion-mode/
Multi Optical Disc Emulator?

It is FPGA based, so it can be reflashed for use on Amiga and it can also have 2TB HD which would fill most of the the CDTV and CD32 games + more.

alexh · 04 January 2023, 07:29

You'd have to write the firmware for it

alexh · 04 January 2023, 07:32

Quote:

Originally Posted by ElectroBlaster

More digging with google revealed this:

http://www.computinghistory.org.uk/d...rface%20Board/

Interesting. It's the wrong way around for CDTV but proof that simple conversion is possible at least in one direction

ElectroBlaster · 04 January 2023, 22:32

Quote:

Originally Posted by alexh

Interesting. It's the wrong way around for CDTV but proof that simple conversion is possible at least in one direction

I assumed this was the case! Somebody went to the trouble of interfacing one of these old cd drives to a modern computer ide port.

If this can be made bi-directional that would mean the battle is nearly won

Apollon · 05 January 2023, 00:57

it is high time that a CD drive emulator, i.e. ODE for amiga cd32 / CDtv comes out, i have already tried to raise the topic at a1k, with an extra thread. But the electronic engineers there didn't seem to be very interested, the best would be a solution that also works on all other amigas and still offers a reasonable cd audio paula mixer.

ElectroBlaster · 05 January 2023, 01:18

Quote:

Originally Posted by Apollon

it is high time that a CD drive emulator, i.e. ODE for amiga cd32 / CDtv comes out, i have already tried to raise the topic at a1k, with an extra thread. But the electronic engineers there didn't seem to be very interested, the best would be a solution that also works on all other amigas and still offers a reasonable cd audio paula mixer.

The A570 could also be catered for.

skan · 27 May 2023, 14:44

https://3do.dev/products/phode-drive-emulator

Support for a "friend" coming in june... CDTV or CD32?!?

spudje · 06 July 2023, 17:42

CD32 it seems. Or the "mystery mechanism" should be the CDTV, but I don't see the connection

I'm a bit reluctant to pre-order one straight away, but I am interested to fit my CD32 with one.

alexh · 06 July 2023, 18:09

CDTV support would be unlikely but not impossible. The CD32 has a relatively standard "cd loader" mechanism whereas the CDTV has custom everything.

skan · 06 July 2023, 18:42

Quote:

Originally Posted by spudje

CD32 it seems. Or the "mystery mechanism" should be the CDTV, but I don't see the connection

I'm a bit reluctant to pre-order one straight away, but I am interested to fit my CD32 with one.

I bet PCEngine CD.

FOL · 06 July 2023, 19:01

Way to expensive, for what it is to justify buying for my CDTV (or even my CD32).
Same as 2MB Chip upgrade.

utri007 · 08 July 2023, 12:57

How about board that converts CDTV custom interface to IDE? or SATA?

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22 December 2022, 17:06	#22
stevelord Registered User Join Date: Apr 2019 Location: UK Posts: 540	Based on https://www.chiark.greenend.org.uk/~...nasoniccd.html if the protocol is similar it might be easier to make something that talks CDTV on one end but operates on a drive image at the other. A bit like an internal CDTV Gotek, maybe with a WB tool to change the CD image. Storage is cheap, I imagine the entire CDTV library could fit on an SD card these days.

22 December 2022, 17:44	#23
simon_m74 Registered User Join Date: Mar 2013 Location: UK Posts: 221	Lots of talk here about emulating the CD drive... I want to replace the CD drive if its possible - lucky lots of talk on that too! As I said, Amiga 4K Checkmate first... I plan to finish design by end of Jan.

29 December 2022, 16:23	#24
ElectroBlaster Junior Member Join Date: Mar 2002 Location: Exeter, Devon, UK Age: 49 Posts: 1,705	If the solution is ever found/created! This picture I found in amongst my huge archive of random files, gives an idea how it may look with a new cd-drive fitted: I have no idea where this picture came from?

29 December 2022, 20:52	#25
ElectroBlaster Junior Member Join Date: Mar 2002 Location: Exeter, Devon, UK Age: 49 Posts: 1,705	More digging with google revealed this: http://www.computinghistory.org.uk/d...rface%20Board/

04 January 2023, 06:44	#26
drHirudo Amiga user Join Date: Nov 2008 Location: Sofia / Bulgaria Posts: 456	Is it possible to use something like this: https://terraonion.com/en/producto/terraonion-mode/ Multi Optical Disc Emulator? It is FPGA based, so it can be reflashed for use on Amiga and it can also have 2TB HD which would fill most of the the CDTV and CD32 games + more.

04 January 2023, 07:29	#27
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,337	You'd have to write the firmware for it

05 January 2023, 00:57	#30
Apollon Registered User Join Date: Nov 2017 Location: NRW/Germany Posts: 31	it is high time that a CD drive emulator, i.e. ODE for amiga cd32 / CDtv comes out, i have already tried to raise the topic at a1k, with an extra thread. But the electronic engineers there didn't seem to be very interested, the best would be a solution that also works on all other amigas and still offers a reasonable cd audio paula mixer.

27 May 2023, 14:44	#32
skan Dream Merchant Join Date: Sep 2007 Location: Dreamlands Posts: 530	https://3do.dev/products/phode-drive-emulator Support for a "friend" coming in june... CDTV or CD32?!?

06 July 2023, 17:42	#33
spudje Registered User Join Date: Dec 2014 Location: Netherlands Posts: 1,406	CD32 it seems. Or the "mystery mechanism" should be the CDTV, but I don't see the connection I'm a bit reluctant to pre-order one straight away, but I am interested to fit my CD32 with one.

06 July 2023, 18:09	#34
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,337	CDTV support would be unlikely but not impossible. The CD32 has a relatively standard "cd loader" mechanism whereas the CDTV has custom everything.

06 July 2023, 19:01	#36
FOL PSPUAE DEV Join Date: Nov 2006 Location: Wales / UK Age: 45 Posts: 5,999	Way to expensive, for what it is to justify buying for my CDTV (or even my CD32). Same as 2MB Chip upgrade.

08 July 2023, 12:57	#37
utri007 mä vaan Join Date: Nov 2001 Location: Finland Posts: 1,653	How about board that converts CDTV custom interface to IDE? or SATA?

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