You using a mother board serial port or a USB adapter? Not all USB/RS232
adapters are created equal. Drivers for brand "X" vs brand "Y" can make
a difference,. I would go down in the lab to see what I have that is
currently working but it is at least 5 years old and you wouldn't likely
find it anyway. How your operating system handles the drivers and the
polling process will also make a difference. They are not generally
expensive so you may have to play mix and match till you get a combo
that is stable.
Tell us what operating system and how the COM port is derived for starters
-DC
[email protected]
On 9/4/2018 3:54 PM, skipp via time-nuts wrote:
Re: Trimble Thunderbolt Start Up RS-232 Communications Glitch
Hello to the Group,
Would anyone be able to help provide a bit of insight
or experience in dealing with what I call the an initial
Trimble Thunderbolt GPSDO RS-232 communications glitch
(during initial power on/up).
I've noticed some of the programs (Lady Heather) and
external status monitor devices (my own), sometimes
seem to initially stutter, freeze or even lock up if
the RS-232 cable connection is made (as one would expect
to be normal).
Establishing a working initial power on/up, serial
port monitor function can require a physical disconnect
from the GPSDO. Once everything is on, the physical RS-232
connection can be made and monitor functions operate
well going forward.
Would there be a hardware or software "serial comm
preamble" or power-on sequence, best order of
operation? The physical disconnect RS-232 comm
reset is more than casually inconvenient.
Thank you in advance for your replies
Cheers,
Skipp
skipp025 at jah who dot calm.
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--
Dave
[email protected]
www.ArtekManuals.com
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