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Low Power RF & Wireless Connectivity
Low Power RF RemoTI for RF4CE Remote Controls Forum
RemoTI stack discoveryRequest reception
When using the ziddongle example application from the RemoTI stack 1.3, the software is unable to receive any discovery request frame from a Remote Control. In the old stack 1.2, the messages are received. The application uses the code in appConfig to setup the RTI parameter fields and calls RTI_AllowPairReq to allow incoming messages, but none are recieved in RCN_CbackEvent..
The RF3CE sniffer detects the frames send by the remote control correctly, so there is something in the air, why doesn't the 1.3 stack receive the data? What filtering in the stack is used for these frames? What has been changed in V1.3 in this respect?
Would you please share the Discovery Request message from the trace?
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I tried to include a saved trace from the packet sniffer but that didn't work as expected, so now I have included the result in text.
Here is the frame's content as shown in the generic packet sniffer
Packet index: 1Length: 50Raw data (hex): 41 C8 2B FF FF FF FF CF C0 04 01 00 4B 12 00 2A 14 E5 05 00 01 00 34 12 50 68 69 6C 69 70 73 13 75 57 61 6E 64 00 00 00 00 00 00 00 00 00 00 01 01 FFRSSI [dBm]: -63CRC OK: 1
The RF4CE packet sniffer decodes it as follows:
RX = 1; Time = 0; Length = 52
FCF = 0b01000001; Seq = 2B
DPAN = FFFF; DADDR = FFFF; SADDR=00124B000104C0Cf
NWKFCF = CMD 01 NONE; NWKFCNT = 0005E514; Cmd=Discovery Request; Node capa = 00
App capa=13; UString=uWand; DevTypeLst = 01; ProfileIDList = 01; ReqDevType = FF
LQI=216; FCS = OK
I hope this will help locating the problem.
When investigaing the problem I also ran into a sentence in the module rti.c of the RemoTI stack // Discovery indication will not occur ignored in ZRC discovery procedure.I 'm not sure if it has anything to do with it, but it triggered a bad feeling
I believe the problem is that the NodeCapabilities is set to 0x00. For ZRC security must be enabled. Channel normalization is not required.
uint8 pValue; // node capabilities: Controller, battery-powered, security-capable, ch-norm-incapable pValue = RTI_BUILD_NODE_CAPABILITIES( 0, 0, 1, 1 );
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