Thanks for your replay.
Do you know how long I wait to get the getRoute response.
//my code is
//determine the physical hop: how far Ni is from GC
res=call RoutingTable.getRoute(GCAddress[gid], &rt_info);
//affichage parameter de la route
printf("EndDevice %02i: Printing route info res=%s\n",
TOS_NODE_ID, errType(res));
//if the route exist
if(res==SUCCESS)
{
print_route(&rt_info, sizeof(rt_info_t));
//save the physicalhop to the GC
physicalHop[gid]=rt_info.hopcnt;
}
Else
{
I wait ==> how long???
//again..
res=call RoutingTable.getRoute(GCAddress[gid],
&rt_info);
}
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Daniel
Minder
Sent: Tuesday, August 23, 2011 9:41 AM
To: [email protected]
Subject: Re: [Tinyos-help] question about tymo
Hi Omar,
it's quite a while that I played around with TYMO - and actually it never
worked satisfyingly. So, I can only answer this question:
> Moreover, the command getRoute returns SUCCESS only if the nodes are
> one hop far from (directly connected), and it returns EBUSY if the
> nodes are more than one-hop far from.
This is how TYMO works! It only knows its direct neighbors. If you ask for a
route to a different node, it returns an EBUSY but sends out a route request
packet to discover this route. So, you have to wait and ask for the route
again later. This is also TYMO is doing. See AMSend.send in
ForwardingEngineM.nc and RouteSelect.selectRoute in MHEngineM.nc
Best,
Daniel
--
Daniel Minder
University of Duisburg-Essen, Networked Embedded Systems Bismarckstr. 90,
47057 Duisburg, Germany
Skype: d.minder
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