Changes

=== Signal assignment This document shows pinning list, wiring diagrams and signal descriptions found on connectors<br> ===a CPC6128.

==== CPCMulti-CD201 (internal Adaptor Cable for External Floppies / HxC emulator ===  [[Image:Floppy_Cable.png|800px|centre]]  === Adaptor Cable for Internal Floppies / HxC emulator === This cable assumes that the drive has been set to DS0 / ID0 and provides a ready signal. For the HxC not a problem, just a simple jumper setting, for floppies this may involve making some mods to the drive.  [[Image:Internal_HxC_Cable.png|800px|centre]]  I've shown the cable from several views to highlight the fact that the connectors don't face the same way on the cable. First crimp the 26way connector as shown in the diagram. Then split the first 6 wires starting from the side of the red wire. These 6 wires need to be shifted 2 cavities further over before being crimped into the 36way connector. Wire 26 goes directly to pin 34 of the floppy 26pin connector) . Make sure the keyways / orientation slots of both connectors are as shown in the diagram. The cable needs no bridges, switches or anything else. When you are finished, you should have a cable looking something like this:  [[Image:HxC Adaptor.jpg|600px|centre]]  === Signal assignment on connectors<br> === ==== Standard floppy connector 34pin<prebr>CPC-CD201 ===={| class="wikitable"! Floppy<br>connector !!colspan="2"| Signal description internal | for CPC internal floppy 26 pin connector- | 1..33 || GND || Ground|-| 2 || /DCD || Disk Change Detect|-| 4 || /DS3 || Drive select 3 (numbering from amstrads repair manualNot always supported)|-| 6 || /INUSE || Open collector LED driver|-| 8 || /IND || Index|-| 10 || /DS0 || Drive select 0|-| 12 || /DS1 || Drive select 1|-| 14 || /DS2 || Drive select 2|-| 16 || /MTRON || Motor enable|-| 18 || /DIR || Direction select|-| 20 || /STEP || Head step|-| 22 || /WDAT || Write data|-+-------------------------------------------| 24 || /WGAT || Write gate|-| 26 || /TRK0 || Track 0|-| 28 || /WPT || Write protect|-| 30 || /RDAT || Read data|-| 32 || /S1 || Side select|-| 34 || /RDY || Ready/Disk change depending on drive configuration|} <br> ==== CPC-CD201 (internal floppy 26pin connector) ==== {| class="wikitable"!CPC-CD201 !!colspan="2"| Signal description<br>(numbering from Amstrads repair manual)|-| 1..25 || GND || Ground|-| 2 || /IND index|| Index|-| 4 || /DRV1 drive || Drive select 1|-| 6 || NC|-| 8 || /MED1 motor || Motor enable drive 1|-| 10 || /DIR direction || Direction select|-| 12 || /STEP head || Head step|-| 14 || /WDAT write || Write data|-| 16 || /WGAT write || Write gate|-| 18 || /TRK0 track || Track 0|-| 20 || /WPT write || Write protect|-| 22 || /RDAT read || Read data|-| 24 || /S1 side || Side 1 select|-| 26 || /RDY ready || Ready (or /DSKCHG) depending on model or drive configuration</pre> |} 

==== CPC-PL-9 (external floopy floppy 34pin centronics connector) ====<pre>{| class="wikitable"! CPC-PL-9 !!colspan="2"| Signal description external | for CPC external floppy 34 pin centronics connector | <br>(numbering from amstrads Amstrads repair manual) ---------+-------------------------------------------------|- | 2..34 || GND || Ground|-| 33 || +5V |||-| 31 || +5V |||-| 29 || +5V |||-| 27 || /IND index|| Index|-| 25 || NC |||-| 23 || /DRV1 drive || Drive select 1|-| 21 || +5V |-| 19 || /MED1 motor || Motor enable drive 1|-| 17 || /DIR direction || Direction select|-| 15 || /STEP head || Head step|-| 13 || /WDAT write || Write data|-| 11 || /WGAT write || Write gate |-| 9 || /TRK0 track || Track 0 |-| 7 || /WPT write || Write protect |-| 5 || /RDAT read || Read data |-| 3 || /S1 side || Side 1 select |-| 1 || /RDY ready || Ready (or /DSKCHG) depending on model or drive configuration</pre> |} 

<br> === Wiring diagrams<br> ===

=== Wireing diagrams<br> = External floppy connector CPC-PL-9 to standard floppy connector 34pin ====

Note: Disconnect wire 03-35-32 /S1 if there is no support by the operating system or if you want to use a side selector switch which is connected to the floppy drive. {| class="wikitable"!width="25%"| PL-9 !!width="25%"| CEN !!width="25%"| PCF !!width="25%"| SIGNAL|-| 01 || 36 || 34 || /RDY|-| 02 || 18 || 33 || GND|-| 03 || 35 || 32 || /S1|-| 04 || 17 || 31 || GND|-| 05 || 34 || 30 || /RDAT|-| 06 || 16 || 29 || GND|-| 07 || 33 || 28 || /WPT|-| 08 || 15 || 27 || GND|-| 09 || 32 || 26 || /TRK0|-| 10 || 14 || 25 || GND|-| 11 || 31 || 24 || /WGAT|-| 12 || 13 || 23 || GND|-| 13 || 30 || 22 || /WDAT|-| 14 || 12 || 21 || GND|-| 15 || 29 || 20 || /STEP|-| 16 || 10 || 19 || GND|-| 17 || 28 || 18 || /DIR|-| 18 || 10 || 17 || GND|-| 19 || 27 || 16 || /MED1|-| 20 || 09 || 15 || GND|-| 21 || 26 || 14 || NC|-| 22 || 08 || 13 || GND|-| 23 || 25 || 12 || /DRV1|-| 24 || 07 || 11 || GND|-| 25 || 24 || 10 || NC|-| 26 || 06 || 09 || GND|-| 27 || 23 || 08 || /IND|-| 28 || 05 || 07 || GND|-| 29 || 22 || 06 || NC|-| 30 || 04 || 05 || GND|-| 31 || 21 || 04 || NC|-| 32 || 03 || 03 || GND|-| 33 || 20 || 02 || NC|-| 34 || 02 || 01 || GND|-| || 19 || || NC|-| || 01 || || NC|}

==== Internal floppy connector CD201 to standard floppy connector 34pin ====<pre>Internal floppy conntector CD201 to floppy connector 34pin==========================================================

Note: Disconnect wire 24-32 /S1 if there is no support by the operating system or if you want to use a side selector switch which is connected to the floppy drive.

{| class="wikitable"!width="33%"| CD201 !!width="33%"| PCF !!width="33%"| 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</pre>|}

==== Floppy drive ====<pre>Floppy drive issues===================* This cables work for drive which are jumpered as drive 1 or /DS1. This is normally the default selection on drive delivery. Also make * Make sure you find a drive which has the possibility to generate a ready signal instead of a disc change signal.</pre> ==== Disk issues<br> ====<pre>Disk issues============If you intend think about to use a HD drive, make sure to close the HD detection hole on your disk. <Still, be aware that the magnetic properties of SD disk and HD disk are different (the HD ones need a stronger magnetic field). When you close the HD detection hole, the drive assumes a SD disk and applies the weaker magnetic field. As a result, HD disks used as SD tend to work but not as reliably as real DD disk (discussed on [https:/pre>/www.lemonamiga.com/forum/viewtopic.php?t=14829 Using 1.44MB HD Disks in the Amiga... &#45; Lemon Amiga][https://groups.google.com/g/comp.sys.apple2/c/9mUL0vZwx6Q?pli=1 HD floppies in a DD drive.][https://www.vogons.org/viewtopic.php?t=46934 High density diskette in low&#45;density drive? \ VOGONS] ). [[Category:Hardware]][[Category:DIY]][[Category:DATA Storage]]