Derp, I didn't English well, but you get the idea :) On Sun, Mar 5, 2017 at 12:26 PM, Dave NotTelling <[email protected]> wrote:
> Here is your graph with a slight modification of your graph to show what > happens if you have the CAR populated. > > > > On Sun, Mar 5, 2017 at 12:20 PM, Dave NotTelling <[email protected]> > wrote: > >> You don't see any output from the Tag Debug block because it only shows >> the tags, not the data. You actually don't have any tags in your data. >> You just have a PMT object with a NIL CAR and a populated CDR. Since there >> are no elements in the CAR, you get no tags. I personally got confused >> because I thought that if I passed in a valid CAR/CDR combo to the pmt >> generator then it would just overwrite the CDR portion. Not so, it >> actually ignores whatever data comes in. Check out >> http://gnuradio.org/doc/doxygen/page_pmt.html for more info about PMT >> objects. >> >> On Sun, Mar 5, 2017 at 8:33 AM, Jorge Carpio <[email protected]> wrote: >> >>> Hi all, >>> >>> I'm pretty new to GNU Radio, I followed the tutorials and made some >>> simple flowgraphs to use with an USRP. Recently took a look at the >>> gr-digital packet communication examples. >>> >>> I'm having trouble figuring out the right way to use the PDU to Tagged >>> Stream block. I connected a Random PDU Generator to the input of the block, >>> expecting a tagged stream to be produced at the output. But I must have >>> misunderstood something, because there is no way I can see the samples >>> being produced in the tagged stream of bytes. I can only see the length >>> tags in the output stream, but no trace of the PDU data. Not even when I >>> try to write the stream to a file or to stdout. >>> >>> >>> Attached is the flowgraph I'm using. >>> >>> Cheers, >>> Jorge >>> >>> >>> >>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> [email protected] >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>> >>> >> >
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