Tuesday, July 23, 2019

Re: [Discuss-gnuradio] Configuring the USRP x300/310 as a dual channel transmitter

Hi Paul,

You should set the subdev spec to be "A:0 B:0" and also set "Num Channels" to 2" This will create two ports on the UHD Sink block.

Also you're running GR 3.8 with UHD 3.15. There is a known issue on the UHD Source block (for RX) when operated with 2 channels on GR 3.8 (issue 2612). This may be an issue as well for the Sink block, but I have not tested it yet. If you run into an issue after setting up the subdev and channels, you may want to revert back to GR maint-3.7 branch and use UHD 3.14.1.0 for now, as they are the stable releases.





Regards,
Nate Temple

On Tue, Jul 23, 2019 at 11:30 AM Mitchell, Paul <paul.mitchell@testllc.com> wrote:

We are trying to configure the USRP x300, and we can't get any signal coming out.  In the end, we would like to set up this SDR to be a dual channel transmitter to transmit signal on two different frequencies.  I will post some diagnostic info here.  If anyone could tell me how to configure the device in GNU, I would greatly appreciate it.  Thank you.

 

labuser@THORE0001:~$ sudo uhd_usrp_probe 

[INFO] [UHD] linux; GNU C++ version 7.4.0; Boost_106501; UHD_3.15.0.git-16-gcad30dfe

[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: 1311 MB/s)

[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1311 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)

  _____________________________________________________

 /

|       Device: X-Series Device

|     _____________________________________________________

|    /

|   |       Mboard: X300

|   |   revision: 11

|   |   revision_compat: 7

|   |   product: 30817

|   |   mac-addr0: 00:80:2f:26:60:69

|   |   mac-addr1: 00:80:2f:26:60:6a

|   |   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: 319CEC8

|   |   FW Version: 6.0

|   |   FPGA Version: 36.0

|   |   FPGA git hash: 4bc2c6f

|   |   RFNoC capable: Yes

|   |   

|   |   Time sources:  internal, external, gpsdo

|   |   Clock sources: internal, external, gpsdo

|   |   Sensors: ref_locked

|   |     _____________________________________________________

|   |    /

|   |   |       RX Dboard: A

|   |   |   ID: UBX-160 v2 (0x007e)

|   |   |   Serial: 31935ED

|   |   |     _____________________________________________________

|   |   |    /

|   |   |   |       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 v2 (0x007e)

|   |   |   Serial: 3193632

|   |   |     _____________________________________________________

|   |   |    /

|   |   |   |       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 v2 (0x007d)

|   |   |   Serial: 31935ED

|   |   |     _____________________________________________________

|   |   |    /

|   |   |   |       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 v2 (0x007d)

|   |   |   Serial: 3193632

|   |   |     _____________________________________________________

|   |   |    /

|   |   |   |       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

|   |   |   * DDC_1

|   |   |   * DUC_0

|   |   |   * DUC_1

labuser@THORE0001:~$ sudo uhd_find_devices 

[INFO] [UHD] linux; GNU C++ version 7.4.0; Boost_106501; UHD_3.15.0.git-16-gcad30dfe

--------------------------------------------------

-- UHD Device 0

--------------------------------------------------

Device Address:

    serial: 31764E1

    name: L2

    product: B205mini

    type: b200

--------------------------------------------------

-- UHD Device 1

--------------------------------------------------

Device Address:

    serial: 31764E9

    name: L1

    product: B205mini

    type: b200

--------------------------------------------------

-- UHD Device 2

--------------------------------------------------

Device Address:

    serial: 319CEC8

    addr: 192.168.10.2

    fpga: HG

    name: 

    product: X300

    type: x300

 

 

Paul Mitchell

Engineering Technician IV

paul.mitchell@testllc.com

256.716.9056 (Work)

256.289.3581 (Cell)

 

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