[Tinyos-help] How to send a message with UART

[Michael Schippling]

If it was me, I would try to get the Java stuff working,
but then I'm mostly a Java kinda guy this millennium...

The Java version of serialforwarder does pass messages in
both direction, so I assume the C version is able to do
the same. But, IMHO, SF is an unnecessary complication,
and is only useful if you want to access the base-station
from some other network node.

There seem to exist listen and listenraw C examples which
could get you closer to the UART in question. With some
reverse engineering of the working Java code, like:
     tools/java/net/tinyos/tools/Send.java
you should be able to figure out the format for the
message send. Or look at the raw output from a receive
and emulate the structure, since they are the same
coming and going. Then it's a matter of calculating
the CRC and doing a write() to the UART port.

Easier said than done, I know...
MS


walid hamdi wrote:
> The problem is in fact not with java, but with the
> serialforwarder, i mean i tried it a long time ago and
> it does not function:(
> 
> So i used the serial forwarder of C /src/sf and since
> that time, i´ve forgotten java totally... Since now,
> where I must use the UART to send packets...
> 
> Any kind of Help?
> 
> 
> 	
> 
> 	
> 		
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