Thanks! I will look at that example. Tim
On Tue, Aug 27, 2019 at 12:15 AM Jonathon Pendlum < [email protected]> wrote: > Hi Tim, > > Look at noc_block_fft_tb.v for an example on how to operate on a 32-bit > sample by sample basis. Unfortunately, if you want to do sizes smaller than > 32-bit, you'll need to write your own version of send()/recv() or > push_word()/pull_word() from sim_rfnoc_lib.svh. > > Jonathon > > On Tue, Aug 27, 2019 at 1:05 PM Timothy Kurp via USRP-users < > [email protected]> wrote: > >> Hey Users! >> >> I think this may be a possible deficiency in the test bench architecture, >> or perhaps I just don't know how to instrument it properly. I have a custom >> block that performs a 2:1 rate change roughly, performing compression of >> the 16 bit I/Q from the radio down to a 16 bit word that is compressed, I >> won't describe how. There is a corner case if EOB occurs when there is an >> odd number of samples received from the radio. I have handled this by using >> simple mode = 0, manipulating cvita header manually and throwing tlast to >> make packets, with success. The noc block works, but I am struggling with >> how to exercise the corner case in the testbench. >> >> From what I have seen, the testbench only allows for EOB to be >> manipulated on sample counts that are a multiple of 2 (send() operates on >> 64 bits, or 2 samples of 16 bit I/Q). We have looked at the source and >> there doesn't seem to be an easy way to throw EOB/TLAST on odd samples.We >> also think it is not guaranteed that this will never happen from the radio. >> Thoughts? >> >> Tim >> _______________________________________________ >> USRP-users mailing list >> [email protected] >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> >
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