On Thu, 2005-03-24 at 14:26 -0600, LRK wrote: > I'm trying to get into gnuradio, hopefully using FreeBSD. They say you can't > teach an ol' dawg new tricks so gnuradio may be too many new tricks without > learning another OS at the same time. > > I have downloaded and built the tarballs with some success. The audio tests > run except the ones with the "hw:0,0: No such file or directory" so I am > making progress. FreeBSD installs boost in /usr/local so I have to set the > option --with-boost-include-dir=/usr/local/include/ for ./configure.
The default sound module is ALSA, which I doubt is available for *BSD. Either don't install the gr-alsa, or edit the audio.py file to not use it. On second thought, some of the code may be hardcoded to use ALSA -- hw:0,0 is a way of addressing a card in ALSA. If this is the case, you can probably just edit the scripts. > > Also I can get the CVS files but the bootstrap fails. Some issues with > where FreeBSD puts automake and such as well as missing variables. More > when I work that out a bit. > You need a particular version of automake. With gentoo, you can install multiple versions of automake -- don't know if *BSD ports let you do that. (Which version of automake you might wonder -- no idea. I think it was mentioned on the list, but on the machine where it works I have 1.4-1.9 inclusive.) Also there were some problems that could be fixed by running bootstrap twice. However I think they were addressed recently in CVS. > If anyone is using *BSD I can use a little help. > > > First project is to feed signals from a radio discriminator into the sound > card for identifying/decoding. Again pointers will be appreciated. > > Assuming your sound card has a proper stereo line-in, you can do I/Q (quadrature) sampling with it assuming that you have the I/Q sources separated out already (if not, you can rig up a circuit that delays the signal, http://comsec.com/wiki?QuadratureDemodulator). In any case, make sure not to overdrive the card so as not to get clipping of the signal/frying of the card, 1V P-P should work OK. Conversely, you only 16 bits of resolution total, so if your signal is smaller, you lose some of that. Hope this helps, Ilia Mirkin imirkin _at_ mit.edu _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
