Hi Eriza, > On 11 Feb 2015, at 16:54, Eriza Fazli <[email protected]> wrote: > We implemented your tests, but still got a hard fault. Too bad. I’m currently refactoring this radio driver so I won’t be able to put much effort into debugging this right now.
> Strangely, though, if we put at86rf231_switch_to_rx right after > at86rf231_send, the crash is gone; we haven't checked if sending and > receiving actually works, but at least it's not crashing anymore. It > looks a bit hacky to me, but I don't know if it should indeed be done > that way… Did it crash on every attempt to send before? I’m asking because _switch_to_rx gets called by the current driver implementation as soon as the radio device issues an interrupt signalling it finished transmission. (at86rf231.c:208) I hope my refactoring and all needed additional changes will be ready by Friday. I would kindly ask you to give the new implementation a try then? Best, Thomas > On 10 February 2015 at 14:02, Thomas Eichinger > <[email protected]> wrote: >> Hi Eriza, >> >>> On 10 Feb 2015, at 11:30, Eriza Fazli <[email protected]> wrote: >>> >>> The thing is, RIOT crashes (HARD FAULT), somewhere in the call to >>> at86rf231_transmit_tx_buf (which is called by at86rf231_send), I >>> suspect at this line [1]. >> >> Your problem seems somehow related to this one on github [1]. My analysis >> so far indicates this happen due to a race condition under very special >> conditions. >> To track this down, could you test two approaches for me? >> >> 1. On your board, does the radio device has its own SPI bus? Could you >> report your >> results when removing all `spi_acquire` and `spi_release` calls in >> at86rf231_spi.c? >> >> 2. Try to compile your application without compiler optimisation by changing >> the >> the `CFLAGS` in Makefile.include from `-Os` to `-O0`. (If applicable). >> >> Best, Thomas >> >> [1] https://github.com/RIOT-OS/RIOT/issues/2418 >> _______________________________________________ >> users mailing list >> [email protected] >> http://lists.riot-os.org/mailman/listinfo/users > > > > -- > Eriza/97.1910 > -So long and thanks for all the fish!- > _______________________________________________ > users mailing list > [email protected] > http://lists.riot-os.org/mailman/listinfo/users _______________________________________________ users mailing list [email protected] http://lists.riot-os.org/mailman/listinfo/users
