Hello Leon, Did you check to see if your custom image failed timing?
Jonathon On Thu, May 9, 2019 at 12:12 AM zluudg via USRP-users < usrp-users@lists.ettus.com> wrote: > Hello! > > I'm having some issues while trying to transmit a signal using the > RFNoC: Radio block in Gnuradio. My block diagram is: > > > Signal Source (constant) -> RFNoC: DmaFIFO -> RFNoC: Radio (in > TX mode). > > > I run the block diagram by calling "python top_block.py" from the > command line and I'm not getting any errors while it's running . > However, I'm unable to quit it properly without having to close the > terminal window and power-cycle the USRP. When connecting the USRP to a > spectrum analyzer I see no signal whatsoever (I expect to see a peak at > 2.4 GHz). > > > Removing the DmaFIFO does not seem to make any difference. My FPGA image > is a custom image with some of my CEs, but it was built smoothly using > the "uhd_image_builder.py" script. I've also experienced similar > problems while having a RFNoC: DUC between the DmaFIFO and the Radio > block, also with a custom FPGA image. With the stock FPGA image I was > able to get a signal with more or less the same Gnuradio block diagram. > > > Why am I not seeing any output with my custom FPGA images? All > suggestions appreciated. > > > I'll happily provide more info if needed, so don't hesitate to ask. For > know, I'll just provide the basics: > > > OS: Ubuntu 18.04 > > uhd: rfnoc-devel, eec24d7b0 > > gnuradio: maint-3.7, c6c575309 > > gr-ettus: master, a909447 > > > Thanks in advance! > > // > > Leon > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
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