You haven’t said what type of daughter cards you’re using. Nor exactly how you’re setting things up In your software.
Sent from my iPhone > On May 17, 2021, at 1:56 PM, Zeng, Huacheng <huacheng.z...@gmail.com> wrote: > > > An update - I update UHD to 4.0 version and run the code again. With this > version I got some warning message (see below). Did I set up the X310 usrp > improperly? > > > [INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501; > UHD_4.0.0.HEAD-0-g90ce6062 > [INFO] [X300] X300 initialization sequence... > [INFO] [X300] Maximum frame size: 1472 bytes. > [INFO] [X300] Radio 1x clock: 200 MHz > [WARNING] [RFNOC::GRAPH] One or more blocks timed out during flush! > Actual RX Freq: 915.000000 MHz... > Actual TX Freq: 915.000000 MHz... > Actual RX Rate: 2.000000 Msps... > Actual TX Rate: 2.000000 Msps... > Rx antenna is RX2 > Tx antenna is TX/RX > Actual RX Gain: 0.000000 dB... > Actual TX Gain: 15.000000 dB... > Actual RX Bandwidth: 2.000000 MHz... > Actual TX Bandwidth: 2.000000 MHz... > Actual RX Freq: 915.000000 MHz... > Actual TX Freq: 915.000000 MHz... > Actual RX Rate: 2.000000 Msps... > Actual TX Rate: 2.000000 Msps... > Rx antenna is RX2 > Tx antenna is TX/RX > Actual RX Gain: 0.000000 dB... > Actual TX Gain: 15.000000 dB... > Actual RX Bandwidth: 2.000000 MHz... > Actual TX Bandwidth: 2.000000 MHz... > RX channel num: 2 > TX channel num: 2 > [WARNING] [0/Radio#0] Attempting to set tick rate to 0. Skipping. > [WARNING] [0/Radio#1] Attempting to set tick rate to 0. Skipping. > [WARNING] [0/Radio#1] Attempting to set tick rate to 0. Skipping. > [WARNING] [0/Radio#0] Attempting to set tick rate to 0. Skipping. > tx_max_num_samps = 364 > rx_max_num_samps = 364 > > Thanks, > Hua > >> On Mon, May 17, 2021 at 12:04 PM Huacheng Zeng <zenghuach...@gmail.com> >> wrote: >> Hi all, >> >> I am using X310 as an MIMO transmitter to send two data streams. I observed >> from the received signal that the two data streams are misaligned in the >> time domain. I suspect that it is the X310's timing/frequency >> synchronization problem. Below is the output information. Is there any C++ >> API reference for setting up X310 as a MIMO transmitter/receiver? Any >> suggestions would be appreciated. >> >> Thanks, >> Hua >> >> >> [INFO] [UHD] linux; GNU C++ version 5.4.0 20160609; Boost_105800; >> UHD_3.13.1.HEAD-0-gbbce3e45 >> -------------------------------------------------- >> -- UHD Device 0 >> -------------------------------------------------- >> Device Address: >> serial: 31804F1 >> addr: 192.168.10.2 >> fpga: HG >> name: >> product: X310 >> type: x300 >> >> >> >> [INFO] [UHD] linux; GNU C++ version 5.4.0 20160609; Boost_105800; >> UHD_3.13.1.HEAD-0-gbbce3e45 >> [INFO] [X300] X300 initialization sequence... >> [INFO] [X300] Maximum frame size: 1472 bytes. >> [INFO] [X300] Radio 1x clock: 200 MHz >> [INFO] [GPS] No GPSDO found >> [INFO] [0/DmaFIFO_0] Initializing block control (NOC ID: 0xF1F0D00000000000) >> [INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1292 MB/s) >> [INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1299 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) >> Actual RX Freq: 915.000000 MHz... >> Actual TX Freq: 915.000000 MHz... >> Actual RX Rate: 2.000000 Msps... >> Actual TX Rate: 2.000000 Msps... >> Rx antenna is RX2 >> Tx antenna is TX/RX >> Actual RX Gain: 0.000000 dB... >> Actual TX Gain: 15.000000 dB... >> Actual RX Bandwidth: 2.000000 MHz... >> Actual TX Bandwidth: 2.000000 MHz... >> Actual RX Freq: 915.000000 MHz... >> Actual TX Freq: 915.000000 MHz... >> Actual RX Rate: 2.000000 Msps... >> Actual TX Rate: 2.000000 Msps... >> Rx antenna is RX2 >> Tx antenna is TX/RX >> Actual RX Gain: 0.000000 dB... >> Actual TX Gain: 15.000000 dB... >> Actual RX Bandwidth: 2.000000 MHz... >> Actual TX Bandwidth: 2.000000 MHz... >> RX channel num: 2 >> TX channel num: 2 >> tx_max_num_samps = 364 >> rx_max_num_samps = 364 >> >> >> >> >> >> >> _______________________________________________ >> USRP-users mailing list -- usrp-users@lists.ettus.com >> To unsubscribe send an email to usrp-users-le...@lists.ettus.com > _______________________________________________ > USRP-users mailing list -- usrp-users@lists.ettus.com > To unsubscribe send an email to usrp-users-le...@lists.ettus.com
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