[rescue] Need PCI DIO (National Instruments, Sealevel, etc) card!

Sandwich Maker adh at an.bradford.ma.us
Wed Jan 7 14:51:11 CST 2009

" From: "Robert Darlington" <rdarlington at gmail.com>
" []
" The major
" problems are the inability to anticipate the commands used by a particular
" instrument.  I think by 488.2 standard they have to implement some common
" commands, but the command to dump the value of say the X register on my
" scope (which can be an array of data, a single digit, or alpha character),
" will be different than the command to dump the voltage info on my volt
" meter.  Also, the instruments all have different buttons that can be
" "pushed" via GPIB, each with a different name and no standard naming
" conventions that I'm aware of.  When coding for these instruments, there is
" usually a page or two (or 10 depending on the instrument) with tables of the
" commands.  Without that it would be impossible.

oh yeah...

in the late '80s i ran an automated test system for a development
project.  it had serial links into the system we were developing and a
gpib bus with about a dozen instruments generating different kinds of
signals and faults and switching them around.  one of the more useful
things i did was use the test platform's programming language [m4, go
figure] to create a uniform macro language across all the boxes.  it
took a little work...  but it made the lives of the test writers much

at startup i had the test system init all the instruments, and i put a
beep cmd at the end of each init string.  it was quite the symphony.
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen
adh at an.bradford.ma.us                       and think what none thought

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