Because hacktoberfest is upon us: Made this a formal feature request, with quite a lot of instructions on how to implement it
https://github.com/gnuradio/gnuradio/issues/5113 On 29.09.21 19:11, Marcus Müller wrote: > Hi Wei, > > it sounds to me like a bit of an "esoteric" use to adjust the number of > repetitions at > runtime for a transmission, but that should not stop you! > > Not all things can work, though: > >> For example, by asking the two repeat blocks always >> process the same amount of samples, > > No, that's not how GNU Radio works! > >> or each time I change the >> parameters, the two file sources re-transmit the file from the beginning >> simultaneously? > > That wouldn't solve the fact that the repetition factor of your two "Repeat" > blocks aren't > set synchronously. > > Instead: > If you want, you can: > > Stream A -->|Streams to| |Vector to|---> > Stream B -->| Vector |--->|repeat|-->| Streams |---> > > By far the most elegant way would be if you wrote your own C++ repeat block > that has an > arbitrary number (instead of just 1) input (and the same number of outputs). > Then, you > could avoid the "Streams to vector" and "vector to streams" trickery. > > Best regards, > Marcus > > On 29/09/2021 18.10, Huang Wei wrote: >> Hello everyone, >> >> I am testing the transmission of the same signal in parallel through two >> repeat blocks >> (see attached flowgraph). The repeat times of both repeat blocks are set by >> the same GUI >> range from 2 to 10. >> When I start running the flowgraph, the two output signals are exactly the >> same as >> expected. But when I change the repeat times from the GUI range, the two >> signals are not >> synchronized anymore (see attached signal plot). >> >> I am wondering, is there a way to keep the two signals always synchronized? >> For example, >> by asking the two repeat blocks always process the same amount of samples, >> or each time >> I change the parameters, the two file sources re-transmit the file from the >> beginning >> simultaneously? >> >> I am doing this because I want to transmit the signals simultaneously >> through two >> synchronized USRPs, and I don't want the mis-match of the signals due to >> changing the >> parameter in the repeat blocks every time. >> >> Appreciate if someone could help me! >> >> Regards, >> Wei >> >
