Be careful that the addr is the node id or something else.

When reading from the UART it will be generall 76 (which is the UART
address), but when writing the data, the genericcomm (AMStandard will not
take the TOS_UART_ADDR .

On 11/30/06, Brian Parfitt <[EMAIL PROTECTED]> wrote:

I'm having some trouble getting an application I am writing to speak with
a mica2 mote over the UART interface. I am using MS .NET and can read data
packets from the mote just fine... When I send a packet to the mote, I am
not able to get the mote to respond.

I have confirmed that the application running on the mote is working by
sending messages with the SerialForwarder... Very simply, I turn on an LED
when a UART message is received on the mote.

Using some c# code as below, I'm not able to get the same response... Any
thoughts or ideas? I have torn apart the SerialForwarder app looking for
some special flow or control data I may have mised, but when it gets down to
the byte level I am sending the same packet as SF...


com =
new SerialPort();
com.ReadTimeout = 3000;
com.WriteTimeout = 3000;
com.BaudRate = 57600;
com.DataBits = 8;
com.StopBits = System.IO.Ports.StopBits.One;
com.Parity = Parity .None;

//load the iPacket objec with some message data...
//details omitted...

//Now write the data to the com port.
com.Write(iPacket.RawPacketData,0,iPacket.RawPacketData.Length);
//Note, I have checked to make sure that iPacket has an appropriate length
and data paylod.. i.e. I have not done something *really really *dumb like
send an empty object.

I'm using the same SerialPort object to read from so I suspect that my
properties on the port are correct as I am able to do some things with the
connection... Any hep or tips from people who have hadd success doing tis
would be great!

Thanks and regards,
Brian

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--
Phani Kumar Arava
Grad Student                                             1560 Worthington
Street
Department Of Computer Science                Columbus Ohio 43201
2015 Neil Avenue
Ohio State University
Columbus Ohio-43210

Contact: (614)-286-2618
URL : www.cse.ohio-state.edu/~arava/
mailto: [EMAIL PROTECTED],[EMAIL PROTECTED], [EMAIL PROTECTED]
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