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DDI-4

Started by LambdaMikel, 17:06, 06 December 18

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LambdaMikel


ComSoft6128

I assume that this is an existing interface that has been upgraded?

GUNHED

It it contains Revaldhinos RAM expansion, then it would be fine  ;) :)
http://futureos.de --> Get the revolutionary FutureOS (Update: 2023.11.30)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Updated: 2021.12.26)

LambdaMikel

Quote from: ComSoft6128 on 17:21, 06 December 18
I assume that this is an existing interface that has been upgraded?


And added the expansion port edge connector passthrough

Bryce

It's Zaxxons DDI-3 in a box with an edge connector added.

Bryce.

simondo

#5
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 :(

Bryce

Ah, so it's a DDI-3 without the drive.

Bryce.

simondo

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.

GUNHED

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 (Update: 2023.11.30)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Updated: 2021.12.26)

LambdaMikel

#9
Quote from: simondo on 11:12, 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.


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....

LambdaMikel

Quote from: simondo on 11:12, 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.


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

LambdaMikel

#11

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.

GUNHED

Well, does it have a properly connected Ready Signal?
http://futureos.de --> Get the revolutionary FutureOS (Update: 2023.11.30)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Updated: 2021.12.26)

LambdaMikel

Quote from: GUNHED on 16:05, 09 December 18
Well, does it have a properly connected Ready Signal?
Time for @Piotr to chime in  8)

llopis

I don't know if this deserves its own thread, but Piotr just announced the DDI5:
https://www.facebook.com/groups/5357712057/permalink/10156161289177058/




tjohnson

Dont get all these different ddi versions what is coming with DDI5.

Bryce

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

Bryce.

LambdaMikel


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.

Gryzor

I'd get one just for the OLED display :D

Bryce

I don't think that's OLED, just inverted with a white backing.

Bryce.

Gryzor

Ι think the 4 does have an OLED? Kind of hard to tell though.

GUNHED

Where do you see an display on the DDI-4?
http://futureos.de --> Get the revolutionary FutureOS (Update: 2023.11.30)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Updated: 2021.12.26)

LambdaMikel

Quote from: GUNHED on 16:14, 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: ;)

Bryce

He's talking about the small display on the Gotek part.

Bryce.

LambdaMikel

Quote from: Bryce on 08:50, 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)

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