>>See, for source code and documentation,
>>
>> ftp://metalab.unc.edu/pub/academic/computer-science/history/pdp-11/codar/
>Cool, Thanks Tim! Guess it's a good thing I wanted to use it on my RT-11
>system though :^)
You'll find that the file CCSUBS.MAC is specifically for RSX-11. It
also has a nice little table at the top, summarizing some of the
programming differences between the Codar 101/102/120/150/151 models.
>The Codar Clock board has a jumper to turn the battery power on and off for
>the board. What good is this? Is this just a way to save the battery life
>when the board isn't in a system?
>
>Is the board any good without the batteries? It doesn't seem to be, but...
I have several different Codar boards, and they all have batteries
set up slightly differently. I *think* my 120 has two independent
sets of batteries, with a jumper to select which one is being used, to
allow you to change batteries without disrupting the clock.
>Considering I've no idea how ancient the batteries are, they amazingly
>enough function well enough for me to be able to turn the system off for a
>short period of time and back on. Not sure if they're strong enough for
>longer periods.
If they're like my Codar 120, they're lithium batteries, and good for
7 years or so. I got a new set from Radio Shack about two and a half
years ago.
--
Tim Shoppa Email: shoppa_at_trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
Received on Sun Aug 22 1999 - 08:45:00 BST