On 09.06.2015 06:40, [email protected] wrote: > hello, > i have created a flowgraph (fig_0.png) for a simple ofdm link but it > works only in parts. the first row (random_source --> > gt_gui_constellation_sink) works perfect but the entire rest does not. > > now two questions: > > 1) stream_to_tagged_stream block: how looks this tagged stream? is there > a header (is it called header?) in which i can find the key (pl) or a > number (6) of the following bytes? > pl,byte0, byte1,...,byte5 or 6,byte0,byte1,...,byte5?
Have a look at the manual page for 'tagged streams'. That should clear things up. > 2) when i simulate the entire graph i get the following error message: > > using volk machine: sse3_64_orc > floating point exception > > any idea why? the my_qpsk_demod_cb block works perfect. it is from the > guided tutorials 3+4 and tested. No way to tell! Try creating a stack trace, or narrowing down which block is triggering this. Cheers, Martin > > thanks in advance! > > alphonso > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
