Hello Everyone, My system config: Host OS: Windows 10 Guest OS: VirtualBox Ubuntu 20.04.3 LTS UHD version: 3.15.0.0 GNU Radio version: 3.8.1.0 SDR Device : Ettus USRP N320 My Goal: Use Ettus N320 as Analysis tool (Ex: Spectrum Analyzer)
Console logs: komro@komro-HP-ProBook-6560b:/usr/lib/uhd/examples$ ./rx_samples_to_file --freq 98e6 --rate 5e6 --gain 20 --duration 10 usrp_samples.dat Creating the usrp device with: ... [INFO] [UHD] linux; GNU C++ version 9.2.1 20200304; Boost_107100; UHD_3.15.0.0-2build5 [INFO] [MPMD] Initializing 1 device(s) in parallel with args: mgmt_addr=192.168.10.2,type=n3xx,product=n320,serial=31F43B7,claimed=False,addr=192.168.10.2 [INFO] [MPM.PeriphManager] init() called with device args `mgmt_addr=192.168.10.2,time_source=internal,clock_source=internal,product=n320'. [INFO] [MPM.Rhodium-0] init() called with args `mgmt_addr=192.168.10.2,time_source=internal,clock_source=internal,product=n320' [INFO] [MPM.Rhodium-1] init() called with args `mgmt_addr=192.168.10.2,time_source=internal,clock_source=internal,product=n320' . . . . [WARNING] [MULTI_USRP] The hardware does not support the requested RX sample rate: Target sample rate: 5.000000 MSps Actual sample rate: 5.015510 MSps Actual RX Rate: 5.015510 Msps... Setting RX Freq: 98.000000 MHz... Setting RX LO Offset: 0.000000 MHz... Actual RX Freq: 98.000000 MHz... Setting RX Gain: 20.000000 dB... Actual RX Gain: 20.000000 dB... Waiting for "lo_locked": ++++++++++ locked. Press Ctrl + C to stop streaming... DGot an overflow indication. Please consider the following: Your write medium must sustain a rate of 20.062041MB/s. Dropped samples will not be written to the file. Please modify this example for your purposes. This message will not appear again. DDDD Done! [ERROR] [UHD] Exception caught in safe-call. in ctrl_iface_impl<_endianness>::~ctrl_iface_impl() [with uhd::endianness_t _endianness = uhd::ENDIANNESS_BIG] at /build/uhd-FRfZNJ/uhd-3.15.0.0/host/lib/rfnoc/ctrl_iface.cpp:50 this->send_cmd_pkt(0, 0, true); -> EnvironmentError: IOError: Block ctrl (CE_00_Port_33) 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 /build/uhd-FRfZNJ/uhd-3.15.0.0/host/lib/rfnoc/ctrl_iface.cpp:151 [ERROR] [UHD] Exception caught in safe-call. in ctrl_iface_impl<_endianness>::~ctrl_iface_impl() [with uhd::endianness_t _endianness = uhd::ENDIANNESS_BIG] at /build/uhd-FRfZNJ/uhd-3.15.0.0/host/lib/rfnoc/ctrl_iface.cpp:50 this->send_cmd_pkt(0, 0, true); -> EnvironmentError: IOError: Block ctrl (CE_00_Port_30) packet parse error - EnvironmentError: IOError: Expected packet index: 28 Received index: 29 [ERROR] [UHD] Exception caught in safe-call. in ctrl_iface_impl<_endianness>::~ctrl_iface_impl() [with uhd::endianness_t _endianness = uhd::ENDIANNESS_BIG] at /build/uhd-FRfZNJ/uhd-3.15.0.0/host/lib/rfnoc/ctrl_iface.cpp:50 this->send_cmd_pkt(0, 0, true); -> EnvironmentError: IOError: Block ctrl (CE_01_Port_40) packet parse error - EnvironmentError: IOError: Expected packet index: 566 Received index: 567 1. What should I do in order to fix this? 2. I tried the fm_receiver flowgraph in GNU Radio, it was running successfully but when I tune the frequency there is nothing I could hear except the first 5 seconds noise! 3. I also tried the example 'Spectrum Analyzer' grc program, it was also running without error but there was not much changes/effects when I tune the frequency! Is there something wrong in receiver? Thank you in advance! Regards, Thangz
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