There are a few problems with your use of send(), but you should still
receive a message and toggle the Leds. 1) you need to specify the size
of the payload, not the size of the whole TOS_Msg, 2) when receive()
returns the message pointer, it may be freed or overwritten before it
can be resent so you should copy it before send()ing, 3) I'm hesitant
to call send() from an event so I always post a new task to do it.
What are you using to generate the actual message?
If the CRC is not calculated correctly it may be dropped.
Also you can cut out the SerialForwarder middleman and just use you message
send program and/or Listen to talk directly to the serial port.
For an example of something that works, sort of like what you want but is
probably more complicated than necessary, see my old code:
http://www.etantdonnes.com/Motes/robocode.tar.gz
MS
[EMAIL PROTECTED] wrote:
i have write the following small program (with name sendreceive) that i
expect work like this:
1- send a packet from SerialForwarder to a directly connected mote
(micaz) via serial port (COM,mib510)
2- the micaz response by toggling the red led on it
3- then resend the same packet back to the SerialForwarder
4- and toggle the green led
i bush a all 1s data packet with destination address of "FF" and handler
ID of "0A"
but there is no response at all
it neither toggle red nor green led and no packet returned to
SerialForwarder
please help
//sendreceive.nc
configuration sendreceive { }
implementation
{
components Main, sendreceiveM, LedsC, UARTComm as Comm;
Main.StdControl -> sendreceiveM;
sendreceiveM.Leds -> LedsC;
sendreceiveM.CommControl -> Comm;
sendreceiveM.ReceiveMsg -> Comm.ReceiveMsg[32];
sendreceiveM.SendMsg -> Comm.SendMsg[10];
}
//sendreceiveM.nc
module sendreceiveM{
provides interface StdControl;
uses {
interface Leds;
interface StdControl as CommControl;
interface SendMsg;
interface ReceiveMsg;
}
}
implementation
{
command result_t StdControl.init() {
call Leds.init();
call CommControl.init();
return SUCCESS;
}
command result_t StdControl.start() {
call CommControl.start();
return SUCCESS;
}
command result_t StdControl.stop() {
call CommControl.stop();
return SUCCESS;
}
event result_t SendMsg.sendDone(TOS_MsgPtr sent, result_t success) {
call Leds.greenToggle();
return SUCCESS;
}
event TOS_MsgPtr ReceiveMsg.receive(TOS_MsgPtr m) {
call Leds.redToggle();
call SendMsg.send(TOS_UART_ADDR, sizeof(*m),m);
return m;
}
}
------------------------------------------------------------------------
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--
Platform: WinXP/Cygwin
TinyOS version: 1.x, Boomerang
Programmer: MIB510
Device(s): Mica2, MicaZ, Tmote
Sensor board: homebrew
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