Re: ERROR: using usrp source gnu-radio block with XG image (RFNoC enabled)

On 06/03/2020 05:27 PM, Mohamed Yaaseen wrote:

Hello Guys,

    I am using usrp x310 with default XG image. I have also setup the RFNoC platform in GNURadio with gr-ettus.

RFNoC ddc example using RFNoC blocks works perfectly with 100MHz of bandwidth. But when I go back to using normal usrp source block which is a normal gr-uhd block, it throws the following error.

[INFO] [UHD] linux; GNU C++ version 9.3.0; Boost_107100; UHD_3.15.0.0-16-ga3ece4f2
[INFO] [X300] X300 initialization sequence...
[INFO] [X300] Maximum frame size: 8000 bytes.
[INFO] [X300] Maximum frame size: 8000 bytes.
[INFO] [X300] Radio 1x clock: 200 MHz
[INFO] [X300] Radio 1x clock: 200 MHz
[INFO] [0/DmaFIFO_0] Initializing block control (NOC ID: 0xF1F0D00000000000)
[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1296 MB/s)
[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1319 MB/s)
[INFO] [0/Radio_0] Initializing block control (NOC ID: 0x12AD100000000001)
[INFO] [0/Radio_1] Initializing block control (NOC ID: 0x12AD100000000001)
[INFO] [0/DDC_0] Initializing block control (NOC ID: 0xDDC0000000000000)
[INFO] [0/DDC_1] Initializing block control (NOC ID: 0xDDC0000000000000)
[INFO] [0/DUC_0] Initializing block control (NOC ID: 0xD0C0000000000000)
[INFO] [0/DUC_1] Initializing block control (NOC ID: 0xD0C0000000000000)
terminate called after throwing an instance of 'uhd::io_error'
  what():  EnvironmentError: IOError: Block ctrl (CE_00_Port_30) 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_BIG; uint64_t = long unsigned int]
  at /home/ya-seen/workspace/src/uhd/host/lib/rfnoc/ctrl_iface.cpp:151

what is this issue ? what am I doing wrong here ? Help, suggestions highly appreciated

thanks in advance !!

Regards,

Mohamed Yaaseen

What is in the device arguments for the normal USRP block?  Are they the same as the device3 block?  Did you leave the device3 block in your
  non-RFNOC flow-graph?