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5.25" Drive on RiscPC. Actilead wanted?

5.25" Drive on RiscPC. Actilead wanted?

We are trying to help someone who is replacing an A5000 with a RiscPC. He
has a 5.25" drive connected to his A5000 and needs to continue to be able to
read and write ADFS 5.25" discs.

IIRC an Actilead was the preferred solution, does anyone have an Actilead
they no longer need? (I expect to pay) Or alternative suggestions welcome
please.

n.b. Our Archimedes EDI (External Drive Interface) has physical fitting
problems. The IDE connector fouls.

Chris Evans

-- 

**** IGEPv5: The fastest RISC OS computer so far! ****
--------- http://www.cjemicros.co.uk/igepv5 ----------
CJE Micro's  / 4D                'RISC OS Specialists' 
Telephone: 01903 523222              Fax: 01903 213901
chris@cjemicros.co.uk      http://www.cjemicros.co.uk/ 
78 Brighton Road, Worthing, West Sussex,      BN11 2EN 

Don't let the urgent things in life, crowd out the important things!

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Chris
9/5/2016 12:44:48 PM
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"Chris Evans (CJE/4D)" <chris@cjemicros.co.uk> wrote:
> IIRC an Actilead was the preferred solution, does anyone have an Actilead
> they no longer need? (I expect to pay) Or alternative suggestions welcome
> please.

IIRC the purpose of the Actilead was to allow addition of a second drive
where they didn't connect the second drive select signal on Mk 1 Risc PC
motherboards.  Mk2 and Mk3 had the signal wired.  I'm not sure if the
Actilead provided any buffering as such.

It may be that you can get away with using a 5.25" drive as-as without any
buffering - it'll depend on the drive.  Keeping the cables short will help.

> n.b. Our Archimedes EDI (External Drive Interface) has physical fitting
> problems. The IDE connector fouls.

Floppy extension cable?  Or one of these with the extra pins chopped off?
http://uk.farnell.com/harwin/m20-6102045/socket-pc-104-stackthru-40way/dp/1569230

Theo
0
Theo
9/5/2016 6:02:18 PM
In article <Uqi*kZ28v@news.chiark.greenend.org.uk>, Theo Markettos
<URL:mailto:theom+news@chiark.greenend.org.uk> wrote:
> "Chris Evans (CJE/4D)" <chris@cjemicros.co.uk> wrote:
> > IIRC an Actilead was the preferred solution, does anyone have an Actilead
> > they no longer need? (I expect to pay) Or alternative suggestions welcome
> > please.
> 
> IIRC the purpose of the Actilead was to allow addition of a second drive
> where they didn't connect the second drive select signal on Mk 1 Risc PC
> motherboards.  Mk2 and Mk3 had the signal wired.  I'm not sure if the
> Actilead provided any buffering as such.
> 
> It may be that you can get away with using a 5.25" drive as-as without any
> buffering - it'll depend on the drive.  Keeping the cables short will help.

Wise words.

I also found this thread from 2002 :-)
https://groups.google.com/forum/#!topic/comp.sys.acorn.hardware/qRfo8bjmNAA

> > n.b. Our Archimedes EDI (External Drive Interface) has physical fitting
> > problems. The IDE connector fouls.
> 
> Floppy extension cable?  Or one of these with the extra pins chopped off?
> http://uk.farnell.com/harwin/m20-6102045/socket-pc-104-stackthru-40way/dp/1569230

We have some of those connectors in stock!
I'll investigate.


Chris Evans

-- 

**** IGEPv5: The fastest RISC OS computer so far! ****
--------- http://www.cjemicros.co.uk/igepv5 ----------
CJE Micro's  / 4D                'RISC OS Specialists' 
Telephone: 01903 523222              Fax: 01903 213901
chris@cjemicros.co.uk      http://www.cjemicros.co.uk/ 
78 Brighton Road, Worthing, West Sussex,      BN11 2EN 

Don't let the urgent things in life, crowd out the important things!

0
Chris
9/8/2016 11:02:48 AM
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