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- From: smb@cs.nott.ac.uk (Simon Burrows)
- Newsgroups: comp.sys.acorn
- Subject: Re: Best buy ARM 3 for old A440/RO3.10
- Message-ID: <1993Jan24.171022.16674@cs.nott.ac.uk>
- Date: 24 Jan 93 17:10:22 GMT
- References: <1993Jan22.121139.8140@infodev.cam.ac.uk>
- Distribution: comp
- Organization: Nottingham University
- Lines: 22
-
- In article <1993Jan22.121139.8140@infodev.cam.ac.uk> JNA10@phx.cam.ac.uk writes:
- >Does anyone have any opinions as to where to get an ARM3/MEMC1a at
- >a *really low price*? :-) I don't really care how slowly it runs
- >in comparison to other highly-clocked upgrades - anything's got to
- >be quicker than what I've got at the moment...
-
- The ordinary Ground Control ARM3 (25MHz) is one of the cheapest, but is
- sturdily constructed. It does use a 25MHz crystal rather than time divided
- 50MHz oscillator, but I never had any problems with it. They will also
- supply a MEMC1a quite cheaply.
-
- I'm not yet convinced about the worth of these more expensive ARM3 upgrades
- which come with a socket for the forthcoming FPA. I'm told (anyone confirm
- this?) that these upgrades were designed around the preliminary spec for
- the FPA, and the pinouts have now changed - in this case a carrier board
- will be needed, which could be a problem given the proximity of the ARM
- chip to the disc drive.
-
- Simon
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- Simon Burrows smb@cs.nott.ac.uk psyhsmb@unicorn.nott.ac.uk +44 533 712030
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