[Likely SPAM] Re: [Likely SPAM] Re: [Tinyos-help] TinyOS 2.x: cannot recieve message from node?

[Jiakang Lu]

Philip Levis wrote:
> On Feb 13, 2007, at 9:35 PM, Jiakang Lu wrote:
>
>
>> Hi all,
>>
>> I need to mention that I meet the same problem on TinyOS 2.0 under 
>> Ubuntu, generally following the instructions 
>> "http://www.5secondfuse.com/tinyos/install.html". The JDK I use is 
>> SUN jdk1.5.0_11, the same as I installed under WinXP.
>>
>> If possible, can anyone that works fine with it tell me how you 
>> install and configure the environment, either Cygwin or Linux? Since 
>> I'm urgent to move on, your information will help a lot. :-)
>
> I have definitely observed this in Ubuntu. I haven't had a chance to 
> get to the bottom of the problem, though.
>
> What you want to do is run a C serial forwarder. You can of course 
> then use Java tools that connect to a serial forwarder. For example, 
> you can start a C serial forwarder then run net.tinyos.tools.MsgReader.
>
> Try
>
> ./sf.exe 9002 /dev/ttyS6 115200
>
> This tells the C serial forwarder to listen for connections on port 
> 9002 and to read packets from the serial port /dev/ttyS6 at speed 115200.
>
> You should then be able to to stuff like
>
> java net.tinyos.tools.MsgReader -comm sf at localhost:9002 <some class>
>
>
> Phil
Hi Phil,

It works! Thank you very much.

Here is what I tried (for future reference of others):
In one Cygwin shell
$ ./sf.exe 9002 /dev/ttyS6 115200
Note: sync
clients 1, read 44, wrote 0
clients 0, read 106, wrote 0

In another Cygwin shell
$ java net.tinyos.tools.MsgReader -comm sf at localhost:9002 BlinkToRadioMsg
1171462190250: Message <BlinkToRadioMsg>
  [nodeid=0x1]
  [counter=0xad]

1171462190500: Message <BlinkToRadioMsg>
  [nodeid=0x1]
  [counter=0xae]
...

One further question: when it comes back to the example TestSerial 
example, I can either run java TestSerial or use C serial forwarder, but 
they are not able to be used at the same time. So is it possible that we 
can the results that stated in the tutorials Lesson 4? Sometimes it is 
useful that sending and receiving can be implemented at the same time 
with one Java command. Thank you.

Best,
Jiakang