Trying to build a "26 pin to 34 pin" ribbon cable for my hxc inside my forthcoming 6128+ :D Pin 1 is clearly marked in the hxc, but is the red wire in this picture pin 1 (borrowed the picture from the sticky thread, hope it's ok)? Just asking, because it seems that Amstrad guys screwed up a few "standard" pinouts just for fun... And of course I'm assuming here that the wiring of the floppy cable inside 6128+ is the same compared to standard 6128. Sorry, if the question is unbelieveably dumb. I'm no guru when it comes to electronics...
(http://www.wirtzmann.de/CPC/hxc/31.jpg)
I think it's different but don't quote me as I was going to do the same.
You could always cheat and buy an adapter from urbon-retro on ebay:
Amstrad CPC Spectrum +3 internal ribbon cable adaptor | eBay (http://www.ebay.co.uk/itm/230769980234)
Just remember to tell him it's for the plus model.
In the end I got persuaded to leave the working floppy in there but have one of those cables in my draw if the drive ever gives up the ghost...
Beaker
We've had that problem a long time ago:
SD HxC floppy disk emulator questions (http://www.cpcwiki.eu/forum/amstrad-cpc-hardware/sd-hxc-floppy-disk-emulator-questions/msg25346/#msg25346)
I think you can find the info you need there concerning the ribbon cable; the ribbon cable is the same on the CPC+ and the normal CPC.
The CPC+ provides only 5v, the normal CPC 12v and 5v. And the lines are exactly in the wrong place so you have to exchange them. Be extra careful on the normal CPC's 12v line, since that can fry your electronics if placed wrong.
So check, double-check, and check again!
Ok, thanks guys for the info once again :) There's at least 2 different versions of the "adapter" schematics however:
(http://www.cpcwiki.eu/forum/index.php?action=dlattach;topic=2386.0;attach=2968;image)
and the other one is here:
Internal floppy conntector CD201 to standard floppy connector 34pin
===================================================================
(flat cable / crimp variant view)
Note: Disconnect wire 24-32 /S1 if you use a side selector switch
which is connected to the floppy drive.
CD201 PCF SIGNAL
26 34 /RDY
25 33 GND
24 32 /S1
23 31 GND
22 30 /RDAT
21 29 GND
20 28 /WPT
19 27 GND
18 26 /TRK0
17 25 GND
16 24 /WGAT
15 23 GND
14 22 /WDAT
13 21 GND
12 20 /STEP
11 19 GND
10 18 /DIR
09 17 GND
08 16 /MED1
07 15 GND
06 14 NC
05 13 GND
04 12 /DRV1
11 GND
10 NC
03 09 GND
02 08 /IND
01 07 GND
06 NC
05 NC
04 NC
03 NC
02 NC
01 NC
In the latter there's only the 3 first pins of the ribbon cable connected before the gap, but in the first there's 6 pins connected before the gap. Do both of these work? I already built a cable according to the latter schematics (from the wiki).
(http://koti.mbnet.fi/olliraa/floppy.jpg)
Cannot test the adapter just yet. What say you? ;)
Quote from: emuola on 07:14, 14 April 12
Ok, thanks guys for the info once again :) There's at least 2 different versions of the "adapter" schematics however:
Intriguing!
Let's see ... Cholo did this in another post:
3 1/2" disk on the DDI-1 (http://www.cpcwiki.eu/forum/amstrad-cpc-hardware/3-12%27-disk-on-the-ddi-1/msg953/#msg953)
in particular this picture might be helpful:
http://img15.imageshack.us/img15/2454/amsdrive35.jpgHere he connects a standard 3" ribbon cable to a 3,5" drive. And he used 6 before the gap.
It's possible that most of the are simply connected to GND. I need to find the tables for both 26 and 34 pin connections.