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

Jonathon Pendlum jonathon.pendlum at ettus.com
Fri Nov 8 13:20:11 EST 2019


Hi Jon,

Can you try reverting commit e39334fe on the fpga repo and rebuilding your
bitstream? Let me know if that makes a difference or not.

Jonathon

On Sat, Nov 9, 2019 at 12:13 AM Jonathan Lockhart via USRP-users <
usrp-users at lists.ettus.com> wrote:

> Greetings Nick,
>
> Here is the screenshot of my GR flow graph, though it shouldn't matter as
> the Split_Stream RFNoC Block I believe is a failure of the python or
> Verilog but the solutions in the link I sent in my previous email did not
> resolve the issue.
>
> [image: Screenshot from 2019-11-08 10-06-50.png]
>
> Regards,
> Jon
>
> On Thu, Nov 7, 2019 at 5:33 PM Nick Foster <bistromath at gmail.com> wrote:
>
>> 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
>>>
>>> _______________________________________________
>>> USRP-users mailing list
>>> USRP-users at lists.ettus.com
>>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>>>
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