[USRP-users] Receiving IO Block Error when Using RFNoC Split Stream

Nick Foster bistromath at gmail.com
Thu Nov 7 17:32:37 EST 2019


Can you be more specific about what your flowgraph looks like?

On Thu, Nov 7, 2019 at 2:22 PM Jonathan Lockhart via USRP-users <
usrp-users at lists.ettus.com> wrote:

> Greetings,
>
> I was wondering if anyone had encountered the following error and had a
> way to fix it?
>
> [INFO] [UHD] linux; GNU C++ version 4.9.2; Boost_105700;
> UHD_3.14.1.HEAD-0-g0347a6d8
> [INFO] [E300] Loading FPGA image: /home/root/localinstall/e300.bit...
> [INFO] [E300] FPGA image loaded
> [INFO] [E300] Detecting internal GPS
> .... [INFO] [E300] GPSDO found
> [INFO] [E300] Initializing core control (global registers)...
>
> [INFO] [E300] Performing register loopback test...
> [INFO] [E300] Register loopback test passed
> [INFO] [0/Radio_0] Initializing block control (NOC ID: 0x12AD100000000000)
> [WARNING] [RFNOC] Can't find a block controller for key SplitStream, using
> default block controller!
> [INFO] [0/SplitStream_0] Initializing block control (NOC ID:
> 0x5757000000000000)
> [ERROR] [UHD] Exception caught in safe-call.
>   in ctrl_iface_impl<_endianness>::~ctrl_iface_impl() [with
> uhd::endianness_t _endianness = (uhd::endianness_t)1u]
>   at /home/jon/rfnoc_3.14.1.1/src/uhd/host/lib/rfnoc/ctrl_iface.cpp:52
> this->send_cmd_pkt(0, 0, true); -> EnvironmentError: IOError: Block ctrl
> (CE_01_Port_21) no response packet - AssertionError: bool(buff)
>   in uint64_t ctrl_iface_impl<_endianness>::wait_for_ack(bool, double)
> [with uhd::endianness_t _endianness = (uhd::endianness_t)1u; uint64_t =
> long long unsigned int]
>   at /home/jon/rfnoc_3.14.1.1/src/uhd/host/lib/rfnoc/ctrl_iface.cpp:142
>
> Traceback (most recent call last):
>   File "rfnoc_fosphor_network_usrp.py", line 283, in <module>
>     main()
>   File "rfnoc_fosphor_network_usrp.py", line 272, in main
>     tb = top_block_cls(fft_size=options.fft_size,
> fpga_path=options.fpga_path, freq=options.freq, gain=options.gain,
> host_ip_addr=options.host_ip_addr, samp_rate=options.samp_rate,
> tdecay=options.tdecay, trise=options.trise)
>   File "rfnoc_fosphor_network_usrp.py", line 43, in __init__
>     self.device3 = variable_uhd_device3_0 =
> ettus.device3(uhd.device_addr_t( ",".join(('type=e3x0',
> "master_clock_rate=%d,fpga=%s" % (samp_rate,fpga_path))) ))
>   File
> "/home/root/localinstall/usr/lib/python2.7/site-packages/ettus/ettus_swig.py",
> line 1307, in make
>     return _ettus_swig.device3_make(*args, **kwargs)
> RuntimeError: EnvironmentError: IOError: [0/SplitStream_0] sr_read64()
> failed: EnvironmentError: IOError: Block ctrl (CE_01_Port_21) no response
> packet - AssertionError: bool(buff)
>   in uint64_t ctrl_iface_impl<_endianness>::wait_for_ack(bool, double)
> [with uhd::endianness_t _endianness = (uhd::endianness_t)1u; uint64_t =
> long long unsigned int]
>   at /home/jon/rfnoc_3.14.1.1/src/uhd/host/lib/rfnoc/ctrl_iface.cpp:142
>
> This is only occurring when I use the split stream block in RFNoC. I have
> tried the fixes in [1] but unfortunately they have not helped. Also, fix 1,
> I can't seem to before b/c I am missing the file
> rfnoc_ce_auto_inst_<device>.v  as shown from the output when attempting a
> "find" command in Ubuntu.
>
> find: ‘rfnoc_ce_auto_inst_e310.v’: No such file or directory
>
> I ran it on both ~/* and /* with no luck.
>
> Regards,
> Jon Lockhart
>
> [1] https://kb.ettus.com/RFNoC#Why_do_I_have_a_command_timeout_error.3F
>
> _______________________________________________
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> USRP-users at lists.ettus.com
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>
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