Hello experts, I am trying to use RFNoc fft examples (rfnoc_fft.grc). I started with the gr-ettus examples. However, I am having some problems with the fft size. In the grc block, I find the option to choose 4096 fft size. However, with hardware I could only work fft size 128 and 256. If I use 512/1024 fft size, I get the timeout (following message) with signal source.
timeout on chan 0 timeout on chan 0 timeout on chan 0 timeout on chan 0 Similarly, if I am receiving with RFNoc radio, with fft size 256 I see the correct output. However, with 512 fft size I get the following output. Ooverrun on chan 0O overrun on chan 0 Ooverrun on chan 0O overrun on chan 0 Ooverrun on chan 0O overrun on chan 0 Ooverrun on chan 0 O I also used the following commands to increase rf buffer size, however, the results are the same. sudo sysctl -w net.core.rmem_max=33554432 sudo sysctl -w net.core.wmem_max=33554432 I attached the uhd_usrp_probe output. I am using ubuntu 16.04. I conected the X310 with 1Gb ethernet cable. My hardward setup is X310/UBX-160. I am also attaching the grc file. Please let me know what is going wrong. Best regards Sanjoy Basak <https://mailtrack.io/> Sent with Mailtrack <https://mailtrack.io/install?source=signature&lang=en&[email protected]&idSignature=22>
[INFO] [UHDlinux; GNU C++ version 5.4.0 20160609; Boost_105800; UHD_4.0.0.rfnoc-0-unknown] [INFO] [X300] X300 initialization sequence... [INFO] [X300] Determining maximum frame size... [INFO] [X300] Maximum frame size: 1472 bytes. [INFO] [X300] Setup basic communication... [INFO] [X300] Loading values from EEPROM... [INFO] [X300] Setup RF frontend clocking... [INFO] [X300] Radio 1x clock:200 [INFO] [X300] Detecting internal GPSDO.... [INFO] [GPS] Found an internal GPSDO: LC_XO, Firmware Rev 0.929a [INFO] [RFNOC] [DMA FIFO] Running BIST for FIFO 0... [INFO] [RFNOC] pass (Throughput: 1304.8MB/s) [INFO] [RFNOC] [DMA FIFO] Running BIST for FIFO 1... [INFO] [RFNOC] pass (Throughput: 1304.5MB/s) [INFO] [RFNOC RADIO] Register loopback test passed [INFO] [RFNOC RADIO] Register loopback test passed [INFO] [RFNOC RADIO] Register loopback test passed [INFO] [RFNOC RADIO] Register loopback test passed [WARNING] [RFNOC] [0/fosphor_0] defines 2 input buffer sizes, but 1 input ports [INFO] [CORES] Performing timer loopback test... [INFO] [CORES] Timer loopback test passed [INFO] [CORES] Performing timer loopback test... [INFO] [CORES] Timer loopback test passed _____________________________________________________ / | Device: X-Series Device | _____________________________________________________ | / | | Mboard: X310 | | revision: 8 | | revision_compat: 7 | | product: 30818 | | mac-addr0: 00:80:2f:25:77:a5 | | mac-addr1: 00:80:2f:25:77:a6 | | gateway: 192.168.10.1 | | ip-addr0: 192.168.10.2 | | subnet0: 255.255.255.0 | | ip-addr1: 192.168.20.2 | | subnet1: 255.255.255.0 | | ip-addr2: 192.168.30.2 | | subnet2: 255.255.255.0 | | ip-addr3: 192.168.40.2 | | subnet3: 255.255.255.0 | | serial: 30DDCA2 | | FW Version: 5.1 | | FPGA Version: 33.0 | | FPGA git hash: f764326-dirty | | RFNoC capable: Yes | | | | Time sources: internal, external, gpsdo | | Clock sources: internal, external, gpsdo | | Sensors: gps_gpgga, gps_gprmc, gps_time, gps_locked, gps_servo, ref_locked | | _____________________________________________________ | | / | | | RX Dboard: A | | | ID: UBX-160 v1 (0x007a) | | | Serial: 30D840B | | | _____________________________________________________ | | | / | | | | RX Frontend: 0 | | | | Name: UBX RX | | | | Antennas: TX/RX, RX2, CAL | | | | Sensors: lo_locked | | | | Freq range: 10.000 to 6000.000 MHz | | | | Gain range PGA0: 0.0 to 31.5 step 0.5 dB | | | | Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz | | | | Connection Type: IQ | | | | Uses LO offset: No | | | _____________________________________________________ | | | / | | | | RX Codec: A | | | | Name: ads62p48 | | | | Gain range digital: 0.0 to 6.0 step 0.5 dB | | _____________________________________________________ | | / | | | RX Dboard: B | | | ID: UBX-160 v1 (0x007a) | | | Serial: 30D83E1 | | | _____________________________________________________ | | | / | | | | RX Frontend: 0 | | | | Name: UBX RX | | | | Antennas: TX/RX, RX2, CAL | | | | Sensors: lo_locked | | | | Freq range: 10.000 to 6000.000 MHz | | | | Gain range PGA0: 0.0 to 31.5 step 0.5 dB | | | | Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz | | | | Connection Type: IQ | | | | Uses LO offset: No | | | _____________________________________________________ | | | / | | | | RX Codec: B | | | | Name: ads62p48 | | | | Gain range digital: 0.0 to 6.0 step 0.5 dB | | _____________________________________________________ | | / | | | TX Dboard: A | | | ID: UBX-160 v1 (0x0079) | | | Serial: 30D840B | | | _____________________________________________________ | | | / | | | | TX Frontend: 0 | | | | Name: UBX TX | | | | Antennas: TX/RX, CAL | | | | Sensors: lo_locked | | | | Freq range: 10.000 to 6000.000 MHz | | | | Gain range PGA0: 0.0 to 31.5 step 0.5 dB | | | | Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz | | | | Connection Type: QI | | | | Uses LO offset: No | | | _____________________________________________________ | | | / | | | | TX Codec: A | | | | Name: ad9146 | | | | Gain Elements: None | | _____________________________________________________ | | / | | | TX Dboard: B | | | ID: UBX-160 v1 (0x0079) | | | Serial: 30D83E1 | | | _____________________________________________________ | | | / | | | | TX Frontend: 0 | | | | Name: UBX TX | | | | Antennas: TX/RX, CAL | | | | Sensors: lo_locked | | | | Freq range: 10.000 to 6000.000 MHz | | | | Gain range PGA0: 0.0 to 31.5 step 0.5 dB | | | | Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz | | | | Connection Type: QI | | | | Uses LO offset: No | | | _____________________________________________________ | | | / | | | | TX Codec: B | | | | Name: ad9146 | | | | Gain Elements: None | | _____________________________________________________ | | / | | | RFNoC blocks on this device: | | | | | | * DmaFIFO_0 | | | * Radio_0 | | | * Radio_1 | | | * DDC_0 | | | * DUC_0 | | | * FFT_0 | | | * Window_0 | | | * FIR_0 | | | * SigGen_0 | | | * KeepOneInN_0 | | | * fosphor_0 | | | * FIFO_0 | | | * FIFO_1
rfnoc_fft.grc
Description: Binary data
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