Re: [Contiki-developers] [contiki-developers] Issue Printing Out Using Emulated Sky Mote [TinyOS printf LogListener]

[Declan D. <dec...@gm...>]

Great! Thanks for your reply!

On Fri, Dec 10, 2010 at 12:40 PM, Fredrik Österlind <fr...@si...> wrote:

>  Hi Declan,
>
> See below.
>
> Declan Delaney skrev 2010-12-08 14:12:
>
> Hi All,
>
>  Apologies if this has been answered before on the list. I have seen posts
> with regard to printing but nothing particular to emulated motes or which
> resulted in a solution to my problem.
>
>  I am having an issue while printing statements in Cooja.
>
>  I am emulating  a TinyOS program, complied for telosb, using "Sky Mote
> Type" mote emulation in cooja.
>
>  I am using the  Printf library -
> http://docs.tinyos.net/index.php/The_TinyOS_printf_Library - for TinyOs to
> print the statements.
> I am unable to see the print statements in the "log listener" or serial
> port for the node in cooja.
> Using the same program binary on real nodes I can see the expected output
> using:
> >java net.tinyos.tools.PrintfClient -comm serial@/dev/ttyUSB0:telosb
>
>  I have confirmed with another cooja user that the printf statements do
> indeed work for emulated motes but I cannot seem to find the problem in my
> own program.
>
>  Has anyone experienced problems using the printf library with emulated
> mote in cooja?
> Can anyone suggest where to look, or what might be the cause of this
> problem?
>
>
> I think the general problem is that none of the COOJA developers commonly
> emulate TinyOS/Sky applications, so the active message conversion is largely
> untested and is not updated with new TinyOS versions. (Patches from TinyOS
> experienced users are of course welcome!)
>
> I just had a look at the related code (SerialUI.java in
> tools/cooja/java/se/sics/cooja/dialogs), and I'm not happy.
> We have discussed how to implement a more generic solution.
> Meanwhile, as a temporary solution, I recommend disabling the tosMode flag
> (see line 329).
>

This Solution works. It still prints some garbage to the log listener but
can be easily resolved using your suggestion below


> You may also want to add something like:
>         lastLogMessage = lastLogMessage.replaceAll("[^\\p{Print}]", "");
>  after line 341 to increase readability in the log listener.
>
>
>
>  I have also been advised that I could use the TinyOS (e.g.
> net.tinyos.tools.PrintfClient, net.tinyos.tools.Listen )  tools directly
> by connecting to the serial port of Cooja. Looking around I cannot find how
> this can be done. I assume (for some reason unknown to me)
> cooja supplies some kind of serial interface that I could connect to like
> so:
>  >java net.tinyos.tools.PrintfClient -comm serial@
> "ContikiSerialPort":telosb
> To print out all serial comms - much like the log listener would do, or
> would have to connect to the serial of each emulated mote.... which im not
> sure how to do.
>
> Yes, you can use the "Serial Socket Server" plugin in COOJA.
> Right-click a node in the Visualizer > Start mote plugin > Serial Socket
> (SERVER).
>
> Connect from outside using network-mode, e.g.
> > java net.tinyos.tools.Listen -comm network@localhost:60001
>

I am able to connect to each node using this process.

Thanks,

Dec


>
> The raw serial output from nodes is forwarded over this socket, so you need
> some tool to parse the active messages headers.
>
> Best,
> Fredrik
>
>
>  Is my assumption here correct?
> Would I have to use normal serial communication via active messages in the
> program in order to avail of TinyOs serial tools or can I continue to use
> the printf library and view the statements in a manner shown above?
>
>
>  Thanks for any help you can offer,
>
>  Dec
>
>
>
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