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ubb-la/README: briefly describe GUI use

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Werner Almesberger 2013-02-01 03:45:10 -03:00
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ubb-la/README
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@ -70,6 +70,27 @@ When the trigger is present, it takes roughly 550 +/- 250 ns plus one
sample time until the first sample is taken.
Graphical output
----------------
A graphical interface is available for exploration of a captured
pattern. This interface is invoked if the option -g is set. Note
that sample rate, trigger, etc., still have to be set up via the
command line. Example:
# ubb-la -f 12 -t 0/8 -g
In the GUI, the following keys are available:
Left/Right Pan the waveform left/right
Up/Down Zoom in/out
Space Set the user origin (upward-facing green triangle)
at the current position and display the time to
the center position (downward-facing blue triangle).
Pressing space again removes the user origin.
Enter/Q Quit
Known bugs
----------