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 >
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