On Apr 1, 2008, at 2:37 PM, Juan Antonio López Riquelme wrote:
Hello
I am working with 2.0.2 release of Tinyos. I have two remote nodes
and one with BaseStation application. By all programs I have
configured the payload to 39 bytes with the line "#define
TOSH_DATA_LENGTH 39". To send messages I have a function and one
task. When I have all data from one sensor I call the function
FunctionSendData, later a delay of 5 seconds before to get the data
from the other sensor and finally the program calls the function
again.
The computer uses the program TestSerial with some modications from
the tutorials.
The nodes sends two messages every minute. Sometimes I have observed
that in Cygwin does not appear the message from one sensor (not
always the same).
I would like to know if I can have problems with 39 bytes of payload
because the default value is 28 or another idea about what is the
problem.
Thanks, Juan Antonio.
task void FunctionSendDataTask(){FunctionSendData();}
void FunctionSendData()
{
uint8_t j;
uint8_t len;
atomic if (!enviarDatosBusy)
{
MensajeDatos* btrpkt = (MensajeDatos*)(call
Packet.getPayload(&PaqueteDatos, NULL));
len = recibidos - 5;
btrpkt->nodeid = TOS_NODE_ID;
if (sensor0) btrpkt->sensor = 0;
else btrpkt->sensor = 1;
btrpkt->longitud = len;
for (j = 0; j < 36; j++)
{
if (!leerDatos) btrpkt->datos[j] = debug[j];
else btrpkt->datos[j] = debug[j+5];
}
if (call EnviarDatos.send(0, &PaqueteDatos,
sizeof(MensajeDatos)) == SUCCESS)
{
enviarDatosBusy = TRUE;
}
else post FunctionSendDataTask();
}
else post FunctionSendDataTask();
}
I'm not sure if this is the problem, but you should most definitely
not be calling send from within an atomic section. Please take a look
at the TinyOS programming manual.
Phil
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