Could this be because I get the warning ‘can’t find a block controller for key fmdemod, using default block controller!’ or is this a separate problem?
Thanks, Kirsten From: USRP-users <usrp-users-boun...@lists.ettus.com> on behalf of "Leong, Kirsten - 0551 - MITLL via USRP-users" <usrp-users@lists.ettus.com> Reply-To: "Leong, Kirsten - 0551 - MITLL" <kirsten.le...@ll.mit.edu> Date: Friday, August 2, 2019 at 12:25 PM To: Lars Kuger <l...@inets.rwth-aachen.de>, "usrp-users@lists.ettus.com" <usrp-users@lists.ettus.com> Subject: Re: [USRP-users] Error 'Timeout on Chan 0' I tried reformatting the xml file based off the uhd_rfnoc_adder.xml file; however, I still get the same error. I’m not trying to throw any packets away so I cannot ignore the error. My block is expecting to take in a complex 32bit floats and output a 32 bit float. From: USRP-users <usrp-users-boun...@lists.ettus.com> on behalf of Lars Kuger via USRP-users <usrp-users@lists.ettus.com> Reply-To: Lars Kuger <l...@inets.rwth-aachen.de> Date: Friday, August 2, 2019 at 10:14 AM To: "usrp-users@lists.ettus.com" <usrp-users@lists.ettus.com> Subject: Re: [USRP-users] Error 'Timeout on Chan 0' Hello Kirsten, I remember getting the same error message while developing a custom RFNoC block. I found the problem to be caused by the corresponding xml file which is located in the grc folder. I am not sure what part of the file exactly caused the error message (maybe the ordering of the parameters or tags within the parameters) but I eventually solved it by replacing the file with the xml file from a working block and modifying that one. Best regards, Lars On 02.08.19 15:50, Leong, Kirsten - 0551 - MITLL via USRP-users wrote: Hello, I am using a USRP X310 and am using gnuradio companion to test a custom block. The current diagram flows as follows: File Source->RFNoC FIFO->custom block->complex to image->frequency sink. However, when I try to execute, I get the error ‘timeout on chan 0’. My testbench passes all 5 cases; I can read signals on the inputs and outputs of the noc block and the flow graph works once I remove my custom block. Where else should I be looking? Thanks, Kirsten _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com<mailto:USRP-users@lists.ettus.com> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
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