Dear Nick, Thank you for the quick reply. I assigned eob, has_time, payload_length, src_sid, next_dst_sid, future_vita_time in another module. There is some logic to define when and how to change those values. Sorry for the confusion.
I haven't simulated this. Could you think of a relevant testbench example I can start with? Thank you. ________________________________ From: Nick Foster <bistrom...@gmail.com> Sent: Wednesday, April 24, 2019 10:39:42 AM To: Xingjian Chen Cc: USRP-users@lists.ettus.com; usrp-users-boun...@lists.ettus.com Subject: Re: [USRP-users] How to insert an EOB for rfnoc transmission? Also, just to be clear, I usually see "no response packet" when I've messed up something in the CHDR. Looking more closely, you're using vita time set to "future_vita_time", but I don't see where that's assigned, either. Similarly for has_time and payload_length. Have you simulated this? It is very unwise to go straight to FPGA before simulating in a testbench. RFNoC comes with very good testbench examples. On Wed, Apr 24, 2019 at 7:37 AM Nick Foster <bistrom...@gmail.com<mailto:bistrom...@gmail.com>> wrote: Are you assigning a value for eob? You declare it, but I don't see where you assign it. On Wed, Apr 24, 2019 at 7:15 AM Xingjian Chen via USRP-users <usrp-users@lists.ettus.com<mailto:usrp-users@lists.ettus.com>> wrote: Hi Guys, Good morning. I am wondering how to insert an EOB in Verilog code to the radio. What I have tried is cvita_hdr_modify as below. I think just change EOB bit should put the tx radio into the idle state. However, when the EOB changed, my E312 returned an error as below. There is a register I used for updating coefficients in FPGA, but it should not be related to EOB. Thank you. wire [63:0] future_vita_time ; wire eob; wire has_time; cvita_hdr_modify cvita_hdr_modify_data ( .header_in(m_axis_data_tuser), .header_out(s_axis_data_tuser), .use_pkt_type(1'b0), .pkt_type(), .use_has_time(1'b1), .has_time(has_time), .use_eob(1'b1), .eob(eob), .use_seqnum(1'b0), .seqnum(), .use_length(1'b1), .length(payload_length), .use_src_sid(1'b1), .src_sid(src_sid), .use_dst_sid(1'b1), .dst_sid(next_dst_sid), .use_vita_time(1'b1), .vita_time(future_vita_time)); Returned Error: sr_write() failed: EnvironmentError: IOError: Block ctrl (CE_01_Port_20) no response packet _______________________________________________ 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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