> Todd Roper wrote: > > > > Phil, > > > > Great to hear on the CTP > > > > 1) We are running deployed around the office here. Simple temp gathering > > 2) The platform is the isi1000, this is a hybrid we have made that has > > the MSP430 on it with the CC1000 radio. All other apps seem to work as > > expected with the exception of this one (Antitheft). I only had to do > > some minor changes in the CC1000 stack to remove the ATMEGA dependencies > > and then wire it up to the MSP. > > 3) Using TinyOS 2.0.1 (latest release from early May). > > > > I was wondering if this may have to do with some of the mesh statistics > > for the routing in the /ctp (rssi/parent,etc). Reason is that sometimes > > I can reset one node and 5 others will start reporting in again as if > > they now have a valid path to the root. > > > > CTP does not use RSSI; it directly measures ETX through packet > acknowledgements. There acknowledgements are layer 2, though, so do not > consider queue drops. It sounds like one node is wedged and other are > trying to route through it. If it can't send packets, then it will drop > all packets it receives. When you reboot it, it either finds a route and > continues forwarding packets or the prior children choose new routes. > > By "all other apps" do you mean MultihopOscilloscope? That would be an > easy to to separate an Anti-Theft failure from a CTP failure. > > One thing you can do is program a BaseStation and snoop on traffic > around a crashed node. If you see other nodes sending it packets but it > doesn't send anything, then it's a local fault. You could also then plug > that node into a serial port to see if CTP is sending any debug messages > or whether the node has crashed/locked up. > > Phil
Phil, Thanks much for the hints. I'll do some more debugging/checking to see if I can isolate where the issue is. I really appreciate your quick response. Best regards, Todd _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
