[Elecraft] P3/SVGA Macro and USB

David Box dobox at suddenlink.net
Sat Feb 29 12:08:39 EST 2020


I am in the process of getting a Genovation KeyPad working with the 
P3/SVGA but also want to have the keyboard available as I like to run 
RTTY and CW without the computer.  So I have a few questions:

1) Has anyone found a USB switch that would allow selectable use of a 
keyboard or the genovation with the P3/SVGA.  There are multiple USB 
switches for sharing peripherals between computers but I have found 
nothing that serves as manual USB hub equivalent.  The P3 cannot work 
with a USB hub so need something like the old RS232 switch box.  Right 
now I just plug and unplug but laziness is the mother of invention so 
looking for a simpler approach.

2) What methods are people using to load macros into the P3/SVGA.  The 
only approach I am a aware of is through manual keyboard entry which is 
error prone.  I believe that once the macros are stored in the P3/SVGA 
that they are saved with the configuration but there is no ability to 
edit the 50 macro locations.  Back on 6/11/2018 Paul had stated "...The 
next BETA release of P3/SVGA firmware will include the ability to 
export/import macros from/to the SVGA just like the PX3." but I am 
unable to find any BETA releases since that time.   The P3 Utility is 
limited to only 16 Macros so that doesn't handle the problem. The 
capability that the PX3 has for exporting/importing/editing of macros 
would be extremely helpful.

3) Using the the P3 MENU -> SVGA menu->  SVGA Usav you can save the SVGA 
state via USB stick which creates a file "SVGASET.sav" file name.  I am 
able to open this file with a Notepad++ and see that it does contain 
macro information but I cannot find any information on the file format.  
File contains a lot of NUL characters and appears to have 3 sections.  
Has anyone decoded this format and knows how to safely edit?  The PX3 
Programmers Manual shows the format for the PX3 files and it appears 
that the macro section may be the same but looking for more definitive 
information.

TNX de Dave K5MWR



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