John,
If your intent is to have the keyboard function through some
application, then the feasibility of your solution depends on the
capability of the application, and that may have nothing to do with the
K3 capability.
The K3 has many capabilities available through applications that connect
to it. Almost any function of the K3 front panel can be accomplished in
one way or another through programming (see the K3 Programmer's Reference).
To use ASCII codes from the keyboard directly would require significant
changes to the K3 firmware to recognize those ASCII characters. I do
not think that is going to happen.
Refer to the K3 Programmers Reference to see what can be accomplished
and the data stream that is required to produce the desired results.
In other words, the functions are available to do most everything that
can be done from the front panel, but it takes a bit of processing to
send the correct commands to the K3.
73,
Don W3FPR
On 5/1/2014 8:33 PM, John Lawrence via Elecraft wrote:
Thanks for all the ideas
First, I gather there is some confusion as to my application intent. My inquiry
was to add a stand alone device to allow the function key ascii codes to
come in via an additional keyboard on a computer. And, it was to work with the
computer logging programs directly must like the standard computer keyboard but
be more user friendly with the function key macros by placing it off to the
side of the main board. Back in the early days of computer logging with CT on
DOS there were keyboards with the function keys in a cluster off to the side
thus avoiding the need to reach up beyond normal touch keyboard range to access
function keys and in some cases also press Fn to reach F7 through F12. By
having a programmable cluster with 12 keys set as ascii keys for F1 thru F12,
it would be easier to work with them at high run rates. That's all.
I haven't had time to investigate the alternatives offered to me but I will.
When I come up with the
best answer it will be presented on here. Again a 12 key cluster with USB to
run with the logging program is the goal...I did not intend to interface
directly with the K3.
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