Author Topic: DDI-4  (Read 2186 times)

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Offline LambdaMikel

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DDI-4
« on: 18:06, 06 December 18 »
« Last Edit: 18:08, 06 December 18 by LambdaMikel »

Offline ComSoft6128

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Re: DDI-4
« Reply #1 on: 18:21, 06 December 18 »
I assume that this is an existing interface that has been upgraded?

Offline GUNHED

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Re: DDI-4
« Reply #2 on: 18:48, 06 December 18 »
It it contains Revaldhinos RAM expansion, then it would be fine  ;) :)
http://futureos.de --> Get the revolutionary FutureOS (Recent update: 2018.08.23)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Ver.: 2018.08.15)

Offline LambdaMikel

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Re: DDI-4
« Reply #3 on: 21:50, 06 December 18 »
I assume that this is an existing interface that has been upgraded?


And added the expansion port edge connector passthrough

Offline Bryce

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Re: DDI-4
« Reply #4 on: 09:31, 07 December 18 »
It's Zaxxons DDI-3 in a box with an edge connector added.

Bryce.

Offline simondo

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Re: DDI-4
« Reply #5 on: 10:00, 07 December 18 »
Not having anywhere near the knowledge of the the Bryce master, and with ulimate respect, and I can't believe I'm even correcting him, but the DDI4 is not a DDI-3, it is a disk interface only. A floppy drive or USB emulator is still required:
https://www.sellmyretro.com/offer/details/32790.

p.s. please forgive me Bryce :(
« Last Edit: 10:02, 07 December 18 by simondo »

Offline Bryce

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Re: DDI-4
« Reply #6 on: 10:02, 07 December 18 »
Ah, so it's a DDI-3 without the drive.

Bryce.

Offline simondo

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Re: DDI-4
« Reply #7 on: 12:12, 07 December 18 »
It is effectively a DDI-1 with a pass through. Quite clever piece of kit. A few people on the CPC Facebook groups were not sure of its purpose either.

Offline GUNHED

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Re: DDI-4
« Reply #8 on: 17:17, 07 December 18 »
Well, time to correct you both, master and servant  :laugh:  Forgive me that joke, it's Friday  ;) :)


Aside of the DDI-1 features it has:

- 512 KB RAM
- ABBA switch for swap drives
- Reset button
- PARADOS 1.2 and AMSDOS can be selected by a switch

TGIF (not a feature, just a temporary state)
http://futureos.de --> Get the revolutionary FutureOS (Recent update: 2018.08.23)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Ver.: 2018.08.15)

Offline LambdaMikel

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Re: DDI-4
« Reply #9 on: 17:19, 07 December 18 »
It is effectively a DDI-1 with a pass through. Quite clever piece of kit. A few people on the CPC Facebook groups were not sure of its purpose either.


I guess it is a modern version of the DDI-1 Clone Useful if you want to connect a Gotek (and a 3.5" Floppy or the like) to the CPC.
I could use one for sure - especially the expansion port passthrough is also very useful. Without such a device, I have to use my DDI-1 at  the end of the MotherX4 (or LambdaBoard), which can be challenging electrically. Also, DDI-1 does NOT work at the end of the MotherX4 without removing the diodes (one of the reasons I made the LambdaBoard, without diodes, and with expansion port passthrough at the end - with that, I would no longer need the LambdaBoard). Not everybody can do that. So to me this is very useful device.


Would be good is the mem exp. could be disabled though....
« Last Edit: 23:44, 07 December 18 by LambdaMikel »

Offline LambdaMikel

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Re: DDI-4
« Reply #10 on: 23:45, 07 December 18 »
It is effectively a DDI-1 with a pass through. Quite clever piece of kit. A few people on the CPC Facebook groups were not sure of its purpose either.


Seems I don't need to join that Facebook group then  :laugh:

Offline LambdaMikel

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Re: DDI-4
« Reply #11 on: 18:25, 08 December 18 »

Now even available as Combo - 3.5", and Gotek, and DDI4 - it seems the Gotek and 3.5" drive are in ONE case! Quite cool:
https://www.sellmyretro.com/offer/details/d
di4-and-dual-floppy-drive-set-34588

Quote
DDI4 interface and dual drive.
DDI4 is floppy interface allow connect disk drive (or disc drive emulator) to CPC 464 and have 512 kb ram upgrade on board.
Dual Drive is 3,5 standart floppy drive and USB emulator in one case what allow you use one USB drive and second floppy.
DDI4 have ABBA switch what allow change drive letters.
« Last Edit: 18:26, 08 December 18 by LambdaMikel »

Offline GUNHED

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Re: DDI-4
« Reply #12 on: 17:05, 09 December 18 »
Well, does it have a properly connected Ready Signal?
http://futureos.de --> Get the revolutionary FutureOS (Recent update: 2018.08.23)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Ver.: 2018.08.15)

Offline LambdaMikel

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Re: DDI-4
« Reply #13 on: 20:49, 09 December 18 »
Well, does it have a properly connected Ready Signal?
Time for @Piotr to chime in  8)

Offline llopis

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Re: DDI-4
« Reply #14 on: 11:38, 10 December 18 »
I don't know if this deserves its own thread, but Piotr just announced the DDI5:

https://www.facebook.com/groups/5357712057/permalink/10156161289177058/




Offline tjohnson

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Re: DDI-4
« Reply #15 on: 11:52, 10 December 18 »
Dont get all these different ddi versions what is coming with DDI5.

Offline Bryce

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Re: DDI-4
« Reply #16 on: 12:07, 10 December 18 »
Why didn't he just make one modular version??

Bryce.

Offline LambdaMikel

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Re: DDI-4
« Reply #17 on: 19:56, 10 December 18 »

Quote
Why didn't he just make one modular version??


Maybe cost point... people that already have a Gotek may no wish to purchase the built in one.
Modular (piggy back board?) adds to the costs as well.


For example, for LambdaSpeak, the (Arduino-like) headers for the click speech board add about 6 $ to the cost.

Offline Gryzor

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Re: DDI-4
« Reply #18 on: 14:48, 13 December 18 »
I'd get one just for the OLED display :D

Offline Bryce

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Re: DDI-4
« Reply #19 on: 15:42, 13 December 18 »
I don't think that's OLED, just inverted with a white backing.

Bryce.

Offline Gryzor

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Re: DDI-4
« Reply #20 on: 16:21, 13 December 18 »
Ι think the 4 does have an OLED? Kind of hard to tell though.

Offline GUNHED

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Re: DDI-4
« Reply #21 on: 17:14, 13 December 18 »
Where do you see an display on the DDI-4?
http://futureos.de --> Get the revolutionary FutureOS (Recent update: 2018.08.23)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Ver.: 2018.08.15)

Offline LambdaMikel

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Re: DDI-4
« Reply #22 on: 17:57, 13 December 18 »
Where do you see an display on the DDI-4?
My question would more be like - why the heck would you NEED an OLED display on the DDI-4?
I might just glue one to my left cheek, might be more useful!  :laugh: ;)

Offline Bryce

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Re: DDI-4
« Reply #23 on: 09:50, 14 December 18 »
He's talking about the small display on the Gotek part.

Bryce.

Offline LambdaMikel

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Re: DDI-4
« Reply #24 on: 16:40, 14 December 18 »
He's talking about the small display on the Gotek part.

Bryce.
I understand that. But the DDI-4 doesn't have a Gotek part (the DDI-5 does it seems)