We'll have to see the minimal flowgraph that makes this behaviour reproducible in order to understand what's going wrong here.
Best regards, Marcus On 06/20/2016 10:38 PM, Damindra Bandara wrote: > Hi, > > I am developing an application which changes between the QPSK and BPSK > modulations based on the signal level. My transmitter path is set as > follows. > > File source --> Packet Encoder --> Constellation modulator --.> USRP > sink. > > Initially, the constellation of the 'Constellation modulator' is set > to a QPSK Constellation Rect. Object. To change the modulation to > BPSK I change the Constellation Rect. Object to BPSK. > Everything works fine for the change from QPSK to BPSK. But when I try > to change back to QPSK from BPSK I get the following error. > > sched: <block pfb_arb_resampler_ccf (12)> is requesting more input data > than we can provide. > ninput_items_required = 13525 > max_possible_items_available = 8191 > If this is a filter, consider reducing the number of taps. > > I appreciate if you could help me to solve this problem. > > Thank you > Damindra > -- > Damindra Savithri Bandara, > Ph.D. in Information Technology (Candidate) > George Mason University, > Fairfax, > Virginia > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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