At 09:01 PM 10/13/2009, Jerome Peters wrote...
Thanks for your response, It is good to see that there are some
solutions. However ~$1,250 for the Base version of LabView is a bit
steep for tinkering in the garage.
You can often find IOtech serial-GPIB converters on eBay for well under
$100. Not as sophisticated, or as fast, as a Labview/bus based
solution, but pretty easy to get readings using almost any language, no
special libraries required. Getting a frequency reading from a 5328a
would be something like (python):
#setup
IOtech.write('out 12;PF4G6R\n')
sleep(.2)
#trigger reading
IOtech.write('out 12;T\n')
#get reading
IOtech.write('enter 12\n')
freq = IOtech.readline()
I've got a couple of Micro488/EXs. They use a DS1216(C?) "smartwatch
RAM" controller to provide non-volatile memory and a real time clock.
The batteries on both eventually died, which produces an "NVRAM
failure" error. The DS1216s are still available, but may be hard to
find. I was able to use a Dremel tool to remove the epoxy encapsulating
the original batteries, and wire in a couple of CR2032
batteries/holders to give them an indefinite life. (I also got a couple
of modern, lower powered CMOS RAMs - CY62256NLL-70PXC - to reduce the
backup power requirements). They're probably good for another 20 years
before the batteries need replacing, now.
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