Does CSEL work on A1200 IDE?

[tiffers]

Well, I went to town on this issue today. It's a long weekend here in Perth, so I got tomorrow to do all the things I normally do on Sundays

I discovered that pin-28 on the A1200 board is NOT grounded as it should be (according to those docs) and even if it was, it wouldn't matter because my simple buffered interface has all pin-28s totally isolated (no tracks, no continuity etc) In fact most of the ground pins on it aren't connected :-(

So I ran a short wire from pin-2 to pin-28 on the secondary channel of the buffered interface and hey presto, CS seems to work with 2 devices (one standard cd-rw drive and one cd-rom ripped out of a Compaq Armada E500 laptop), but not with the slimline drive I was planning to use.

I suspect there really is something wrong with the drive, as I found it on the floor in a datacenter .

So, I'm on the lookout for another slimline drive. I'd like a CD-RW at least, or if I can, a DVD Combo (DVD Read + CD-RW). If I can get one with a CS/MA/SL switch, I'll know it will work.

I think this drive is fried, or it's custom firmware (thanks Sun Microsystems!) is causing some incompatibility.

Anyway, I used the standard CD-RW drive I've been testing with and got an install of OS3.9 and the BBs, along with a CNET network card that I bought of eBay NIB (still shrink wrapped) for about $10 Aus. Sweet!

Now, to get the catweasel interfaces cleaned up (Zetro... how goes that EAGLE tute?), and with a working slimline #?-ROM drive, I will have a neat Miggy.

tiffers

 

[jvdbossc]

I have slimline drive stock model: gca-4040n, also others but don't they can write, this piece claims dvd+rewritable.

Since it is laptop hardware that breaks down frequently and is wanted asking 20 EU for this piece.

I did not find this on the floor, or on the dumbster

---------- Post added at 15:52 ---------- Previous post was at 15:50 ----------

http://www.netcomdirect.com/hlgcedvnocod.html

---------- Post added at 15:57 ---------- Previous post was at 15:52 ----------

IT's a grey one.

The bezel is not straight, so you will have to fit it in a little mm off straight.

 

[jope]

Firstly -

You can use Cable Select on ANY IDE (IDC) cable, the ONLY time you would need a "specific cable" is if the Devices you use do not allow/support Cable Select.

No. You need the special cable select cable with the cut wire that was shown previously in the thread, else both drives will think they are on the same ID.

All 80 pin cables are cable select compatible by specification, but 40 pin and 44 pin cables are not, unless you can see that they are cut like in the illustration Keropi showed before.

The drives do not communicate between each other for CS, they merely check to see if the motherboard is tying the CS pin to ground or if it's floating because the wire has been cut from the cable.