are you calculating the CRC correctly?
the devil may be in those delicious
> //details omitted...
MS
Brian Parfitt 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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