Karin,
The AUXBUS is Elecraft proprietary and is used to communicate between
the MCU and all other firmware devices in the K2 system. So your
"Strange bit streams" are not likely to be related to WSPR controls.
If WSPR gets the proper data on the RS-232 signals, the KPA100 or KIO2
will pass those signals to the MCU (in TTL compatible voltages) using
pins 24 and 25 of Control Board U6 (TXD and RXD) - in turn the MCU will
either operate the proper K2 circuits directly or communicate with
whichever option firmware IC is needed to complete the request.
What faulty operation are you experiencing? You can email me privately
or send your reply to the reflector.
I have had experience with the K2 since 1998 and regularly service the
K2 (about 3 a week this year) and have never had to debug anything on
the AUXBUS except to verify that it is producing pulses. Even though I
do some of that work for Elecraft, I do not have access to the AUXBUS
protocol, nor have I needed it.
In other words, the AUXBUS has no relationship with the K2 serial
communications, so I believe you may be looking in the wrong area.
73,
Don W3FPR
On 12/22/2017 3:44 PM, Karin Johnson wrote:
Hello Group:
I am trying to debug an issue I am having with CAT control of an Elecraft K2
using the WSPR software.
WSPR is setup to use CAT control for turning on the Xmtr. That part works
but I'm seeing some very
Strange bit streams on the AUXBUS during the WSPR control sequence.
I would rather not take up the list with back and forth debugging this
issue. Anyone on the list have
Some knowledge of the AUXBUS protocol that I could communicate with to run
down this issue.
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