Hello All,
I would like to read the hop count from a received packet using CTP.
Archives suggest using the THL value for this. Currently this is my
implementation, but I always get a value of 0 regardless of the number of
hops. Also the warning during compilation is shown below.
structure definition:
typedef nx_struct EasyCollectionMsg {
nx_uint16_t data;
nx_uint16_t hopcount;
}
event message_t* Receive.receive(message_t* msg, void* payload, uint8_t len)
{
call Leds.led1Toggle();
recpkt = *(EasyCollectionMsg*)payload;
uint8_t metric;
call CtpPacket.getThl(&metric);
recpkt.hopcount = metric;
printf(" hop count: %u\n", recpkt.hopcount);
....
}
EasyCollectionC.nc:161: warning: passing argument 1 of
'EasyCollectionC__CtpPacket__getThl' from incompatible pointer type
I'm not sure why the pointer is incompatible, and why the hop count does not
get updated. Any help is appreciated.
Thanks,
Ellen
--
Columbia University
MS Electrical Engineering
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