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HP Forum Archive 14

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Series 80: HP 82940A GPIO Manual
Message #1 Posted by Vassilis Prevelakis on 7 Mar 2005, 7:21 a.m.

The HP 82940A GPIO Manual for the HP Series 80 computers has been added to the www.series80.org web site.

I am happy to say that this manual just about concludes the scanning of my collection. When I started the Series 80 site, the market prices for these computers were quite reasonable, but nowadays prices have increased to the point where I do not think it reasonable to try to enlarge the collection any further.

This means that unless somebody donates manuals or scans, the on-line collection is not likely to increase any further.

Best Regards

**vp

      
Re: Series 80: HP 82940A GPIO Manual
Message #2 Posted by Tony Duell on 7 Mar 2005, 2:07 p.m.,
in response to message #1 by Vassilis Prevelakis

You've got the link wrong, I think. The filename should be HP82940A-GPIO.pdf, not HP82940-GPIOA.pdf (which is what you've got).

Interesting design, with those 8243 I/O expanders to drive the GPIO lines...

            
Re: Series 80: HP 82940A GPIO Manual
Message #3 Posted by Vassilis Prevelakis on 7 Mar 2005, 9:37 p.m.,
in response to message #2 by Tony Duell

yes the link was wrong, thanks Tony

**vp


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