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config software for nmea-mux ( version 1.0 ?)

 
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peterh
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Joined: May 17, 2012
Posts: 26

PostPosted: Sat Jun 23, 2012 3:24 pm    Post subject: config software for nmea-mux ( version 1.0 ?) Reply with quote

I got delivery of a nmea mux, but by some mistake i got no software for
the combination i use ( linux ubuntu 32-bits )

Can i download it somewhere ?
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FWallenwein
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Joined: Mar 26, 2006
Posts: 419
Location: Mannheim / Germany

PostPosted: Sat Jun 23, 2012 11:42 pm    Post subject: Reply with quote

Hello peter,

I just came home ( 1hr ago ) from a sailing trip in croatia.
That's why you get just a short reply today.
Tomorrow I'll go more into detail.

I made a 32 Bit Ubuntu Version ready. You can find it at:


http://www.gadgetpool.de/nuke/downloads/gadgets/Multiplexer/stConfig.zip. That's the config tool itself.
It depends on QT4 shared Llibs.
If you allready have them, it should work as it is.
If you don't, I've uploaded the QT4 Libs's to http://www.gadgetpool.de/nuke/downloads/gadgets/Multiplexer/qtlibs.tgz

Sorry for the short reply today.
Best regards
Frank
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peterh
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PostPosted: Sun Jun 24, 2012 9:27 am    Post subject: Reply with quote

thanks, i'll try to test today.

( thougt the stConfig was statically linked though , which is a very good thing (Tm) when distributing software )

With this working i can identify which messages are circulating and possibly filter them out.
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peterh
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PostPosted: Sun Jun 24, 2012 5:35 pm    Post subject: Reply with quote

stConfig received and working.

A few suggestions

1/ the scrolling display is nice. 2 minor additions would be nice :
- indication of source for each line ( 1 - 4 or S(eatalk)
- possibility to stop the data logging window and still keep the data on screen


2/ saving the whole config including filters, preferably in ascii format
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FWallenwein
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PostPosted: Sun Jun 24, 2012 6:24 pm    Post subject: Reply with quote

peterh wrote:
stConfig received and working.


All right - thanks's

Quote:

( thougt the stConfig was statically linked though , which is a very good thing (Tm) when distributing software )

Well - I'm preparing a statically linked version.
As I said, I just come home yesterday and prepared a quick 32 Bit release.
For building a statically linked version, there is a little bit more preparation to do. I have to compile QT as static version first, and I could not not get that done yesterday. Maybe not even today. You know - when you come home after being away for two weeks, there is always a lot to do.
Sorry for the delay.

(Btw. - I thought you're using OSX )

Quote:

A few suggestions

1/ the scrolling display is nice. 2 minor additions would be nice :
- indication of source for each line ( 1 - 4 or S(eatalk)
- possibility to stop the data logging window and still keep the data on screen


2/ saving the whole config including filters, preferably in ascii format


Thank's for this suggestions.
Port indication is a great Idea. I'll do that.
Stop logging and keep it on screen is also a good idea. I'll do that as well.
And - saving the filter settings will also be done.
Thank's for the ideas.
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peterh
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PostPosted: Sun Jun 24, 2012 6:57 pm    Post subject: Reply with quote

Another thing that *might* be mis-understanding :
in the filter menue, when howering the mouse above the input buttons it
seems that the numbering is backwards ( 4 to the left etc) The buttons
however seems to work according to the documentation ( 1 to the left)
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FWallenwein
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PostPosted: Mon Jun 25, 2012 4:07 pm    Post subject: Reply with quote

Request for discussion and ideas :

Quote:

- indication of source for each line ( 1 - 4 or S(eatalk)


Hi,

I just thought about how to implement this function - and I'm not sure what would be the best way to do it.
At first I thought it would be just a small change in the configuration software. That was wrong.

Problem :

Today, the PC does not know where NMEA Data come from.
The multiplexer reads data from different sources - and send them combined to the PC via USB. Currently there is no way how the PC would know from which input a sentence came.

NMEA sentences do not have any indication, marker or something that would indicate the source.
There is the Devices ID and Sentence ID. I'd say, both should not be altered or modified by the multiplexer.

If we want to know from which multiplexer input the data came, we would have to
chance the multiplexer firmware in a way, so that it somehow adds this information to the NMEA sentence.

Any ideas what would be the best way to do it ?

It would have to be done in a way, that other software on the PC that uses NMEA Data ( like Chart Plotter or any other navigation software ) does not get confused and still can work with the NMEA data from the multiplexer.
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peterh
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PostPosted: Mon Jun 25, 2012 5:01 pm    Post subject: Reply with quote

The (meta)information about source has to be added by the multiplexer at the time it is collected ( together with the data) When sending this buffer only the
data is written UNLESS destination is PC AND some "debug" flag has been set.
Maybe a timestamp could be included too, collected at the time of recv.
Adding the meta-info is only meaningful when sending to PC
If ( and this is an big if) the USB port is only used for management
via the config utility then maybe the meta should always be included.

Keeping meta on all messages might be beneficial for instance if
one starts count data drops ( due to output buffer full) the some
statistics could be presented that one more output drop has
occured and how many messages that have been dropped from each
source. ( I did observe how much just 3 devices will spew data, it seems
that filtering out messages is needed in my case)
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