On 01/27/2013 05:15 PM, Jim Lux wrote:
I spent a couple frustrating hours debugging a test setup with
programmable power supplies and counters (to make automated measurements
of freq/Vtune on some VCOs, as well as "Vsupply pushing")
I'm using something hacked from the sample Python code and the Prologix
Ethernet device (which has been wonderful for the past few years), but
this time it was a positive ordeal. I would get timeouts and error
messages back from the devices.
Turns out that I had one bad cable and one with a little piece of paper
that had gotten into the connector when mating it.
So.... is there some sort of systematic test scheme using the Prologix
that can be used to check out a setup? Or using John Miles's Prologix
Configurator to exercise it.
Don't feel stupid Jim.
When I went into my lab the other day, I finally realized that my
Thunderbolt just didn't give any signal, I found that the PSU feeding
the GPS splitters didn't have signal and things just looked funny. It
took some time to figure out, but when finally getting behind the rack I
realized that it was strange everything was failing... until I realized
that my UPS was in error condition, so clearing the error and enabling
it... and all of a sudden everything came awake.
Good thing is that nothing is broken, I am doing stuff in the lab again
and things gets sorted out.
LPRO and Cesium testing progressing nicely.
Cheers,
Magnus
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