Hi Saul, I have just added the interface RadioControl to the RF230 stack through which you can change the channel dynamically. It is provided by RF230ActiveMessageC.
Best, Miklos On Wed, Jan 28, 2009 at 4:50 PM, Saul Garcia <[email protected]> wrote: > Hi Miklos, > > I've been reading about and I decided to keep going with the RssiDemo since > I think it's the one that adapts better to my final purpose. But I'm stuck > on the channel switching. Trying to understand TinyOS, as you see I am > newbie at all, I found that probably my solution is on the > /tos/chips/rf230/RF230LayerP.nc there with the tasklet_async command error_t > RadioState.setChannel(uint8_t c), I can set the Channel at run time, right? > > So I have to wire this module to my final application so that I can change > the channel on the radio layer. Is there any other considering that I have > to take into account, such as turning off and on again the radio services > once I change the channel? > > Thanks > > 2008/12/17 Miklos Maroti <[email protected]> >> >> Hi Saul, >> >> On Wed, Dec 17, 2008 at 12:04 PM, Saul Garcia <[email protected]> wrote: >> > Hello, >> > >> > I am a Spanish student, currently in Brussels doing my Master Thesis. By >> > now >> > if I have been learning about the TinyOS programming and now I am on >> > disposition to write/modify an existing application that fits to my >> > thesis. >> > The point is that I am looking for an scanning application that scans >> > all >> > the 802.15.4 IEEE channels. I have started working with the >> > /apps/tutorials/RssiDemo, app that prints out the RSSI values send it by >> > other device. I would like to modify my baseStation in order to switch >> > channel every time that the Tout fires. But I found this a little bit >> > tricky >> > as long as I couldn't find the command that sets the new Channel. >> > However, I >> > found your app (the RF230Sniffer) I have tried to work with it but no >> > luck, >> > it doesn't seem to be working. >> >> It does work. You need to program it and connect it directly to your >> PC. On the PC you need to run the net.tinyos.util.DiagMsg application. >> >> > Regarding to the code, I understand how you do the "changeChannel", but >> > is >> > there any other module that let's me do it directly? Do I have to >> > implement >> > your inline command? >> >> There is no easy way to dynamically change the channel. You would need >> to change the MessageBufferLayerP.nc. You need to power down the radio >> stack, change the channeland power it up. >> >> > By the way, could you please tell me briefly what exactly is supposed to >> > do >> > the RF230Sniffer? >> >> The RF230Sniffer records all messages on the given channel and dumps >> it to the PC. The DiagMsg java application prints out all this >> information. The RF230Sniffer actually uses the lib/DiagMsg component, >> which is called from RF230LayerP when it is in diag mode. >> >> Best, >> Miklos > > > > -- > Saul Garcia Huertes > _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
