Atom Floppy

emulators, hardware and classic software for atom + system machines
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Prime
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Atom Floppy

Post by Prime » Sun Nov 08, 2015 5:23 pm

Hi all,

As I'm about to take delivery of the new Atom Floppy boards, would people who have expressed an interest please let me know if they want the floppy to be made with an external or internal bus connector (see pictures below).

First picture is the internal mounting position, this needs a double row header on PL7* to mate with the female connector on the floppy interface.
* I can supply this if needed but you will need to solder it in yourself.
DSC_0514.JPG
Note the cable would normally be routed to poke out of the back of the Atom, but I moved it out of the way to take the picture. The board has a standard 34 way connector on it so will mate with the normal floppy cable from say a beeb drive. In the case of this machine that belongs to Arcadian I provided a short piece oc cable with an inline male connector that will hang just outside the Atom allowing the drive to be disconnected without disassembling the Atom. I may be able to supply these but will have to price up the connectors.

This is the external mounting, this needs a male AB populated DIN41612 connector in PL6, again I can supply this if needed but you'll need to solder it in.
DSC_0516.JPG
This mounting also requires a linking cable to connect the Floppy interface to the Atom, if you already have an Atom Disk pack you may have one and would be able to use that otherwise I can supply it with the interface. The external mounting would be used in cases where you want to mount the interface in an external box in the same way as the Atom Disk pack.

Finally this is the linking cable :
DSC_0517.JPG
IMPORTANT NOTE

BOTH versions of the interface will require the buffer chips IC2, IC3 and IC4 to be fitted to your Atom, I don't currently have a supply of these, I do have a small adapter board that takes standard LS chips but only currently have one prototype. If there is sufficient need I can get a bunch of these made.

Also note the production boards will be green and not purple!

Please feel free to ask questions if there is anything you are not sure of.

Cheers.

Phill.

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Multiwizard
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Re: Atom Floppy

Post by Multiwizard » Sun Nov 08, 2015 5:37 pm

Wow, nice... =D>

Next year (at the next meeting) I also like to have at least one of these too, beautiful pcb's... =D>


Greetings, Wim... :-)

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richardtoohey
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Re: Atom Floppy

Post by richardtoohey » Wed Nov 11, 2015 6:05 am

I think I'd prefer external, just based on previous experience (as opposed to any wisdom!) of internal things needing tweaking and then having to unscrew, fiddle, re-screw, re-assemble etc. (only to find I'd missed something and so back to square one.) Thanks.

PhilYoung
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Re: Atom Floppy

Post by PhilYoung » Wed Nov 11, 2015 9:07 am

External version for me please, I probably don't need the cable.

Have you settled on a price for this yet ? (with and without cable options would be helpful)

Cheers,

Phil Young

herklots
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Re: Atom Floppy

Post by herklots » Sun Nov 15, 2015 10:36 pm

Gents, I've dug up an Atom Disk Pack which doesn't have the two drives, but the controller board inside looks complete with all sockets full. It is needing a good home, happy to give it to one of you lads for nuffin, but I'm in San Jose, CA and with the metal case, transformer and all, 'tis somewhat weighty to post. Could always pull the controller board, post that, bin the rest. So...?

Tim

Mike3071
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Re: Atom Floppy

Post by Mike3071 » Mon Nov 16, 2015 4:09 am

Hi, yes I would be interested in just the floppy controller board. If you would let me know what the shipping costs would be then I can arrange payment by PayPal or by any other means.
Thanks,

Regards, Mike

Mike3071
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Re: Atom Floppy

Post by Mike3071 » Mon Nov 16, 2015 12:46 pm

Hi, I would like an internal floppy controller card.
Thanks,

Mike

herklots
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Re: Atom Floppy

Post by herklots » Mon Nov 16, 2015 3:14 pm

Mike,
If you pass on your address, I'll get it in the post. You can reimburse postage when you get it.
Tim

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danielj
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Re: Atom Floppy

Post by danielj » Mon Nov 16, 2015 3:39 pm

It'd be a shame if the case got binned - they're not exactly common, but they are ridiculously heavy :(

d.

herklots
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Re: Atom Floppy

Post by herklots » Mon Nov 16, 2015 3:45 pm

The case ain't binned yet... I won't toss it for a while in case someone wants it, for a Hoglet board or even the Bear Hardware design.

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danielj
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Re: Atom Floppy

Post by danielj » Mon Nov 16, 2015 4:44 pm

Thinking about it, minus the transformer I suspect it wouldn't be too ridiculous to ship, drop in a nice switched mode supply and you're off...

d.

herklots
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Re: Atom Floppy

Post by herklots » Mon Nov 16, 2015 5:05 pm

But youd use twin 3.5" floppies, so the case doesn't really suit.

Interestingly the 8271 is a CERDIP.

herklots
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Re: Atom Floppy

Post by herklots » Wed Nov 18, 2015 3:52 am

Mike,
You still haven't provided your address. If no longer interested, please advise and I'll see who else is.
Tim

Mike3071
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Re: Atom Floppy

Post by Mike3071 » Wed Nov 18, 2015 5:24 pm

Hi Tim, I sent you a PM with my address details - have you received it?

Mike

herklots
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Re: Atom Floppy

Post by herklots » Wed Nov 18, 2015 11:26 pm

Mike,

Goddit, will post it in a day or 3.

Tim

Zarchos
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Re: Atom Floppy

Post by Zarchos » Sat Nov 21, 2015 10:03 am

External version please.

And I was interested by the colour board, too.
Thanks.

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1024MAK
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Re: Atom Floppy

Post by 1024MAK » Sat Nov 21, 2015 12:33 pm

Prime wrote:Hi all,

As I'm about to take delivery of the new Atom Floppy boards, would people who have expressed an interest please let me know if they want the floppy to be made with an external or internal bus connector <snip>
Hi Phill

This is a photo showing the expansion connectors on my Atom 2014 board. I would like the new Atom Floppy board to connect to the DIN41612 "internal bus connector" shown in the picture please.
Atom 20150402 PCB top expansion connectors 100.JPG
(Note: the photo originally taken before the chips were fitted).
I fitted the same type of DIN41612 connector as in this picture on Roland's site (I hope! :D ). I used an IDC connector for the external expansion bus and would like to keep this free for use with my own circuit boards. I used an IDC connector, as it is easier to use and slightly less expensive (and I had some!).

Mark

Prime
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Re: Atom Floppy

Post by Prime » Mon Nov 23, 2015 9:34 am

1024MAK wrote: Hi Phill

This is a photo showing the expansion connectors on my Atom 2014 board. I would like the new Atom Floppy board to connect to the DIN41612 "internal bus connector" shown in the picture please.
In that case I'll fit the board with a 2x32 male pinheader which should mate with the DIN connector on your board. However seeing as my Atoms all have this the other way round with the male on the baord and the female on the card it might be difficult for me to test the board before sending it to you, however I have had no failures so far :) I may be able to do some basic tests before I fit the connector tho....

Cheers.

Phill.

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1024MAK
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Re: Atom Floppy

Post by 1024MAK » Mon Nov 23, 2015 4:55 pm

Hi Phill

It sounds like you have a plan.

In the past, admittedly for a different type of connector with a lot less pins, I have used a pin header to allow two female connectors to mate together.

I'm not in a rush, so if you want to wait until you have some confirmed reports from other users first, that's not a problem :D

Mark

Mike3071
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Re: Atom Floppy

Post by Mike3071 » Mon Nov 23, 2015 10:33 pm

Hi, can I have the same connector as 1024MAK for my internal floppy drive controller card.
All my Atoms have a male(pin) external connector and a female(socket) internal connector
just like 1024MAK's and the Roland board. An old internal 32K RAM board I had also fitted this way.
Thanks.

Mike

BillG
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Re: Atom Floppy

Post by BillG » Tue Nov 24, 2015 12:11 am

Hi, apologies for delay writing back - could I have an internal configuration please but with female socket because I've got males pins sticking up from my Atom main board at PL6/7. Thanks! Bill

Prime
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Re: Atom Floppy

Post by Prime » Tue Nov 24, 2015 11:36 am

Just so people know.....

I am keeping track of these and collating them in an excel sheet so I know what to build.....

Cheers.

Phill.

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1024MAK
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Re: Atom Floppy

Post by 1024MAK » Wed Jan 27, 2016 7:46 am

Yay! Mine arrived yesterday (Tuesday 26th).

So Thank you Phill (Prime) =D>

The included notes are very handy, so thanks for providing them as well 8)

Mark

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