Not enough information. Can you push your tree to your account on github? If you don't have a github account please get one so you can push your code up to it and then I can look at it.
Then I can see how you have things wired. Since you get one event it probably isn't a wiring problem but some other kind of failure. What does your h/w look like? How is the 2520 wired to the 5438a? On Sun, Feb 17, 2013 at 4:00 AM, "Erdélyi Ádám [Edöm]" < [email protected]> wrote: > Hello Everyone, > > I'm (still) trying to interface the MSP430F5438a uC with the CC2520 > radio chip. (I'm using the tp-freeforall/prod repo) > Now I'm facing the following problem: > > When sending out (TX) messages the SfdCapture.captured event never > fires, except after boot-up for the first time. > > - I captured some of these "first packets" with a CC2531 USB dongle and > TI Packet Sniffer and the result looks like this every time: > 41 88 11 22 00 FF XX XX XX XX XX XX XX XX XX (where XXs are different > every time, but the length is the same, 15) > > - I also measured the signal with an oscilloscope on GPIO4 of CC2520 > (which is set to SFD by default (based on CC2520 Datasheet / SWRS068) > and connected to P8.1 on MSP430F5438a) and I can see this first SFD > signal after boot-up, but the high-level of the signal is only around > 0.3V. (I don' really understand why so low.) > > - I tried to remap the timers, because by default the radio uses Micro > timer (my HplCC2520.nc is based on sam3s_ek) which is mapped to > Timer1_A, but the P8.1 (the SFD signal from CC2520) is mapped to > Timer0_A which is a T32khz timer, so I replaced Timer0_A and Timer1_A > with each other, but it didn't get any better. > > At the moment I'm out of ideas, if anyone could give me a hint what the > problem could be, it'd be great. > > (the above mentioned event can be found in > /tos/chips/cc2520/CC2520DriverLayerP.nc around line 1600) > > Thank you in advance. > > Best wishes, > Adam Erdelyi > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > -- Eric B. Decker Senior (over 50 :-) Researcher
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