I wrote a simple program (based on Blink, Oscilloscope & OscilloscopeRF) in
which the timer fires every 1000ms. On each timer event, the mote (micaz) sends
a packet to both the UART and the wireless link (one after another).
It seems like a simple program, but I don't know why I can only send the
packet to one of them. I copied the code snippet below:
TOS_Msg msg;
task void SendMsgToUART()
{
call DataMsgUart.send(TOS_UART_ADDR, sizeof(struct OscopeMsg), &msg);
}
task void SendMsgToWirelessChannel()
{
call DataMsg.send(TOS_BCAST_ADDR , sizeof(struct OscopeMsg), &msg);
}
event result_t timer.fired()
{
post SendMsgToWirelessChannel();
post SendMsgToUART();
return SUCCESS;
}
The components are wired as follows:
MyModuleM.communication -> GenericComm;
MyModuleM.DataMsg -> GenericComm.SendMsg[AM_OSCOPEMSG];
MyModuleM.communicationUART -> UARTComm;
MyModuleM.DataMsgUart -> UARTComm.SendMsg[AM_OSCOPEMSG];
The one I can send the packet to is the first one I call in timer.fired(). In
my example, I can only send to the Wireless channel. All packets to the UART
port are not received.
If anyone can give me a hint, I would really apppreciate it.
Thanks
Heo
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