Thank you Jeff! Indeed, it works! I really appreciate your help. Thanasis
2014-10-09 18:21 GMT+03:00 John Malsbury <jmalsbury.perso...@gmail.com>: > Jeff, Tom, > > The packet framer/deframer is mostly identical to the stream-based one in > GNU Radio proper. It's not a bad starting point, but a more general > implementation that could be configured for a variety of applications, > codes, and frame formats would be very interesting. I think this would be > a substantial project that could probably stand on its own. GSoC? > > As far as gr-mac is concerned, I'm happy to put in some time and accept > contributions on the project so we can get it merged. Is this task-force > worthy? Something we should just discuss on another mailing list thread? > Or is there a better way to proceed? > > -John > > On Thu, Oct 9, 2014 at 7:23 AM, Tom Rondeau <t...@trondeau.com> wrote: > >> On Wed, Oct 8, 2014 at 7:25 PM, Jeff Long <willco...@gmail.com> wrote: >> >>> Hi Thanasis, >>> >>> 1. The flow you showed could not have worked because Packet Decoder >>> takes unpacked bytes. The graph should be: >>> >>> File Source -> Encoder -> Packed-to-Unpacked -> Decoder -> File Sink >>> >>> 2. The payload length defaults to 512 if you leave it at 0, so a short >>> file won't fill a packet. >>> >>> Encoder: >>> 1 Sample/Symbol, 1 Bit/Symbol, Payload length 1 >>> >>> Packed-to-Unpacked: >>> 1 Bit/Chunk, MSB >>> >>> That worked for me. >>> >>> General question for others ... the encoder/decoder are part of GRC and >>> haven't had any substantial work in a long time. Is this code meant to be >>> used, or should people look at other blocks, or gr-mac? >>> >>> - Jeff >> >> >> Yes, the encoder/decoder pair are quite old and meant as examples as much >> as anything; definitely not the definitive way to do this. >> >> gr-mac is a good place to look for alternatives. I really hope to see us >> fix up some of the gr-mac code and merge as much as possible back into GNU >> Radio. And when I say fix up, I mean that they way they've done stuff >> inside there was based off the legacy code they pulled it from, so there's >> some mix of stream, stream tags, and pdu stuff in there that could be >> smoothed out. But they were solving the general problem of getting the mac >> to work. I'd love to see things cleaned up a bit now. >> >> Tom >> >> >> >> >>> >>> On 10/08/2014 06:26 PM, Charles Alberton Herdt wrote: >>> >>>> I am seeing the same problem here while running some tests. >>>> Anyone else has any thoughts? >>>> >>>> Running gnuradio 3.7.5, installed with the build-gnuradio script on >>>> Ubuntu 14.04. >>>> >>>> Gnuradio >>>> >>>> On Tue, Oct 7, 2014 at 6:18 AM, Thanasis Balafoutis >>>> <abalafou...@gmail.com <mailto:abalafou...@gmail.com>> wrote: >>>> >>>> Hi, >>>> In the followning basic setup: >>>> File Source (Byte) ----> Packet Encoder (Byte) -----> File Sink >>>> (byte) >>>> >>>> My input file is just a "Hello World" message >>>> If the Repeat property of my file source is set to "No" the File >>>> Sink remains empty Why? Do I have buffering issues? >>>> If I set Repeat="yes" file sink seems to work, But when I insert a >>>> Packet Decoder: >>>> >>>> File Source ----> Packet Encoder ----->Packet Decoder -----> File >>>> Sink >>>> >>>> The output file is empty again! >>>> >>>> Thanks >>>> >>>> _______________________________________________ >>>> Discuss-gnuradio mailing list >>>> Discuss-gnuradio@gnu.org <mailto:Discuss-gnuradio@gnu.org> >>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>> >>>> >>>> >>>> >>>> _______________________________________________ >>>> Discuss-gnuradio mailing list >>>> Discuss-gnuradio@gnu.org >>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>> >>>> >>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> Discuss-gnuradio@gnu.org >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>> >> >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >
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