Hi all
I am working with the TKN15.4 libraries, the TinyOS implementation of the IEEE
802.15.4 standard. In particular, I am doing some tests with the non-beacon
mode of this implementation. I've modified the TestIndirectData app
(tinyos-2.x/apps/tests/tkn154/nonbeacon-enabled/TestIndirectData) aimed at
performing a direct transmission instead of an indirect transmission. In this
sense, I've done the following (a few) changes in the code:
1) The device acts as receiver node. It does not perform any polling process,
only switches to receiver state (promiscuous mode) listening to incomming
transmissions.
TestIndirectDataDeviceAppC.nc----------------------------------------configuration
TestIndirectDataDeviceAppC{} implementation { [...] App.PromiscuousMode
-> MAC; //add}----------------------------------------
TestIndirectDataDeviceC.nc----------------------------------------module
TestIndirectDataDeviceC{ uses { [...] interface SplitControl as
PromiscuousMode; //add }} implementation { [...] void startApp() {
[...] // call PollTimer.startPeriodic(62500U); call
PromiscuousMode.start(); // add } [...] //<add> event void
PromiscuousMode.startDone(error_t error) { } event void
PromiscuousMode.stopDone(error_t error) { } //</add>
}----------------------------------------
2) The coordinator is who transmits data. Only modifications of txOptions in
the MCPS_DATA.request has been done:
TestIndirectDataCoordC.nc----------------------------------------module
TestIndirectDataDeviceC{} implementation { [...] void sendIndirectData(){
[...] call MCPS_DATA.request( &frame,
// frame, strlen(payload),
// payloadLength, 0,
// msduHandle, // TX_OPTIONS_INDIRECT |
TX_OPTIONS_ACK // TxOptions, TX_OPTIONS_ACK //
TxOptions, ); [...] } [...]
event void MCPS_DATA.confirm( message_t *msg,
uint8_t msduHandle, ieee154_status_t
status, uint32_t Timestamp ) {
[...] //<add> else if(status == IEEE154_NO_ACK) {
call Leds.led2On(); } //</add>
}[...]
}----------------------------------------
Taking in account the aforementioned, the message is actually received by the
device, but coordinator's led2On indicates to me that any ack has been
transmitted or received.
What am I doing wrong?
All the help possible would be appreciated.
Thanks!
David _______________________________________________
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