Hello LJ Eads:

There are some tutorials that will help you get started with GNU Radio.

https://kb.ettus.com/Suggested_Videos

The UHD USRP Source and UHD USRP Sink blocks in GNU Radio represent your
X300/X310 radio. The source block is for receiving samples, and the sink
block is for transmitting samples.

Which 10 Giagbit Ethernet card are you using? The Intel X520-DA2, X540-DA2,
and X710-DA2 cards work very reliably under Ubuntu 16.04.4.

Please let me know if you have any further questions.

--​Neel Pandeya
​408-610-6370




On 2 May 2018 at 05:14, Eads, LJ D. via USRP-users <
usrp-users@lists.ettus.com> wrote:

> Hello,
>
> I just setup a X310 that I plan on using with GNURadio over 10 gigabit.. I
> have everything working and functioning properly (drivers and all) but my
> only concern right now is that GNURadio is running off of the sound card on
> my server and not the GPU. GNURadio isn't able to handle practically
> anything because I am limited by the sound card capability.
>
> How  would I be able to use the CPU (Sixteen-Core Intel Xeon Processor
> E5-2683 v4 2.10GHz 40MB Cache (120W)) or the GPU (NVIDIA Tesla K80 GPU
> Computing Accelerator - 24GB GDDR5 - Passive Cooler) for better
> functionality of the X310?
>
> Thank you,
>
> LJ Eads
>
>
> -----Original Message-----
> From: USRP-users [mailto:usrp-users-boun...@lists.ettus.com] On Behalf Of
> usrp-users-requ...@lists.ettus.com
> Sent: Tuesday, May 1, 2018 12:00 PM
> To: usrp-users@lists.ettus.com
> Subject: USRP-users Digest, Vol 93, Issue 1
>
> Send USRP-users mailing list submissions to
>         usrp-users@lists.ettus.com
>
> To subscribe or unsubscribe via the World Wide Web, visit
>         http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
> or, via email, send a message with subject or body 'help' to
>         usrp-users-requ...@lists.ettus.com
>
> You can reach the person managing the list at
>         usrp-users-ow...@lists.ettus.com
>
> When replying, please edit your Subject line so it is more specific than
> "Re: Contents of USRP-users digest..."
>
>
> Today's Topics:
>
>    1. Fwd: USRP No antenna port listed (Daniel Guarecuco)
>    2. Re: Fwd: USRP No antenna port listed (Marcus D. Leech)
>    3. Re: New (soon) owner question (USB3 over Ethernet) (Marcus M?ller)
>    4. Turbo Product Codes on USRP E312 (Ronakraj Gosalia)
>    5. How to define FIR RFnoc block with float taps (Allouche Ishai)
>    6. Re: How to define FIR RFnoc block with float taps (Marcus M?ller)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 30 Apr 2018 14:54:17 -0400
> From: Daniel Guarecuco <daniel.guarec...@gmail.com>
> To: usrp-users@lists.ettus.com
> Subject: [USRP-users] Fwd: USRP No antenna port listed
> Message-ID:
>         <CAE3AEx3zkme_ydjDieowKxwYfgdX3GhLUcBZXFiP2M
> xzbjq...@mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi,
> I have an USRP1 with a BasicTX and a BasicRX.
> I have been trying to receive data with no luck,  it seems there is a
> problem with the antenna port.
> I run uhd_usrp_probe.exe and this is what I get:
>
> C:\Program Files\UHD\bin>uhd_usrp_probe
> [INFO] [UHD] Win32; Microsoft Visual C++ version 14.0; Boost_105900;
> UHD_3.11.0.
> 0-release
> [INFO] [NIRIO] rpc_client stopping...
> [INFO] [NIRIO] rpc_client stopped.
> [ERROR] [UHD] Device discovery error: input stream error [INFO] [USRP1]
> Opening a USRP1 device...
> [INFO] [USRP1] Using FPGA clock rate of 64.000000MHz...
>   _____________________________________________________
>  /
> |       Device: USRP1 Device
> |     _____________________________________________________
> |    /
> |   |       Mboard: USRP1
> |   |   serial: 480f888c
> |   |   name: USRP_ettus
> |   |
> |   |   Time sources:  none
> |   |   Clock sources: internal
> |   |   Sensors:
> |   |     _____________________________________________________
> |   |    /
> |   |   |       RX DSP: 0
> |   |   |
> |   |   |   Freq range: -32.000 to 32.000 MHz
> |   |     _____________________________________________________
> |   |    /
> |   |   |       RX DSP: 1
> |   |   |
> |   |   |   Freq range: -32.000 to 32.000 MHz
> |   |     _____________________________________________________
> |   |    /
> |   |   |       RX Dboard: A
> |   |   |   ID: Basic RX (0x0001)
> |   |   |     _____________________________________________________
> |   |   |    /
> |   |   |   |       RX Frontend: AB
> |   |   |   |   Name: BasicRX (AB)
> |   |   |   |   Antennas:
> |   |   |   |   Sensors:
> |   |   |   |   Freq range: -250.000 to 250.000 MHz
> |   |   |   |   Gain Elements: None
> |   |   |   |   Bandwidth range: 500000000.0 to 500000000.0 step 0.0 Hz
> |   |   |   |   Connection Type: IQ
> |   |   |   |   Uses LO offset: No
> |   |   |     _____________________________________________________
> |   |   |    /
> |   |   |   |       RX Frontend: BA
> |   |   |   |   Name: BasicRX (BA)
> |   |   |   |   Antennas:
> |   |   |   |   Sensors:
> |   |   |   |   Freq range: -250.000 to 250.000 MHz
> |   |   |   |   Gain Elements: None
> |   |   |   |   Bandwidth range: 500000000.0 to 500000000.0 step 0.0 Hz
> |   |   |   |   Connection Type: QI
> |   |   |   |   Uses LO offset: No
> |   |   |     _____________________________________________________
> |   |   |    /
> |   |   |   |       RX Frontend: A
> |   |   |   |   Name: BasicRX (A)
> |   |   |   |   Antennas:
> |   |   |   |   Sensors:
> |   |   |   |   Freq range: -250.000 to 250.000 MHz
> |   |   |   |   Gain Elements: None
> |   |   |   |   Bandwidth range: 250000000.0 to 250000000.0 step 0.0 Hz
> |   |   |   |   Connection Type: I
> |   |   |   |   Uses LO offset: No
> |   |   |     _____________________________________________________
> |   |   |    /
> |   |   |   |       RX Frontend: B
> |   |   |   |   Name: BasicRX (B)
> |   |   |   |   Antennas:
> |   |   |   |   Sensors:
> |   |   |   |   Freq range: -250.000 to 250.000 MHz
> |   |   |   |   Gain Elements: None
> |   |   |   |   Bandwidth range: 250000000.0 to 250000000.0 step 0.0 Hz
> |   |   |   |   Connection Type: Q
> |   |   |   |   Uses LO offset: No
> |   |   |     _____________________________________________________
> |   |   |    /
> |   |   |   |       RX Codec: A
> |   |   |   |   Name: ad9522
> |   |   |   |   Gain range pga: 0.0 to 20.0 step 1.0 dB
> |   |     _____________________________________________________
> |   |    /
> |   |   |       RX Dboard: B
> |   |   |     _____________________________________________________
> |   |   |    /
> |   |   |   |       RX Frontend: 0
> |   |   |   |   Name: Unknown (0xffff) - 0
> |   |   |   |   Antennas:
> |   |   |   |   Sensors:
> |   |   |   |   Freq range: 0.000 to 0.000 MHz
> |   |   |   |   Gain Elements: None
> |   |   |   |   Bandwidth range: 0.0 to 0.0 step 0.0 Hz
> |   |   |   |   Connection Type: IQ
> |   |   |   |   Uses LO offset: No
> |   |   |     _____________________________________________________
> |   |   |    /
> |   |   |   |       RX Codec: B
> |   |   |   |   Name: ad9522
> |   |   |   |   Gain range pga: 0.0 to 20.0 step 1.0 dB
> |   |     _____________________________________________________
> |   |    /
> |   |   |       TX DSP: 0
> |   |   |
> |   |   |   Freq range: -44.000 to 44.000 MHz
> |   |     _____________________________________________________
> |   |    /
> |   |   |       TX DSP: 1
> |   |   |
> |   |   |   Freq range: -44.000 to 44.000 MHz
> |   |     _____________________________________________________
> |   |    /
> |   |   |       TX Dboard: A
> |   |   |   ID: Basic TX (0x0000)
> |   |   |     _____________________________________________________
> |   |   |    /
> |   |   |   |       TX Frontend: AB
> |   |   |   |   Name: BasicTX (AB)
> |   |   |   |   Antennas:
> |   |   |   |   Sensors:
> |   |   |   |   Freq range: -250.000 to 250.000 MHz
> |   |   |   |   Gain Elements: None
> |   |   |   |   Bandwidth range: 500000000.0 to 500000000.0 step 0.0 Hz
> |   |   |   |   Connection Type: IQ
> |   |   |   |   Uses LO offset: No
> |   |   |     _____________________________________________________
> |   |   |    /
> |   |   |   |       TX Frontend: BA
> |   |   |   |   Name: BasicTX (BA)
> |   |   |   |   Antennas:
> |   |   |   |   Sensors:
> |   |   |   |   Freq range: -250.000 to 250.000 MHz
> |   |   |   |   Gain Elements: None
> |   |   |   |   Bandwidth range: 500000000.0 to 500000000.0 step 0.0 Hz
> |   |   |   |   Connection Type: QI
> |   |   |   |   Uses LO offset: No
> |   |   |     _____________________________________________________
> |   |   |    /
> |   |   |   |       TX Frontend: A
> |   |   |   |   Name: BasicTX (A)
> |   |   |   |   Antennas:
> |   |   |   |   Sensors:
> |   |   |   |   Freq range: -250.000 to 250.000 MHz
> |   |   |   |   Gain Elements: None
> |   |   |   |   Bandwidth range: 250000000.0 to 250000000.0 step 0.0 Hz
> |   |   |   |   Connection Type: I
> |   |   |   |   Uses LO offset: No
> |   |   |     _____________________________________________________
> |   |   |    /
> |   |   |   |       TX Frontend: B
> |   |   |   |   Name: BasicTX (B)
> |   |   |   |   Antennas:
> |   |   |   |   Sensors:
> |   |   |   |   Freq range: -250.000 to 250.000 MHz
> |   |   |   |   Gain Elements: None
> |   |   |   |   Bandwidth range: 250000000.0 to 250000000.0 step 0.0 Hz
> |   |   |   |   Connection Type: Q
> |   |   |   |   Uses LO offset: No
> |   |   |     _____________________________________________________
> |   |   |    /
> |   |   |   |       TX Codec: A
> |   |   |   |   Name: ad9522
> |   |   |   |   Gain range pga: -20.0 to 0.0 step 0.1 dB
> |   |     _____________________________________________________
> |   |    /
> |   |   |       TX Dboard: B
> |   |   |     _____________________________________________________
> |   |   |    /
> |   |   |   |       TX Frontend: 0
> |   |   |   |   Name: Unknown (0xffff) - 0
> |   |   |   |   Antennas:
> |   |   |   |   Sensors:
> |   |   |   |   Freq range: 0.000 to 0.000 MHz
> |   |   |   |   Gain Elements: None
> |   |   |   |   Bandwidth range: 0.0 to 0.0 step 0.0 Hz
> |   |   |   |   Connection Type: IQ
> |   |   |   |   Uses LO offset: No
> |   |   |     _____________________________________________________
> |   |   |    /
> |   |   |   |       TX Codec: B
> |   |   |   |   Name: ad9522
> |   |   |   |   Gain range pga: -20.0 to 0.0 step 0.1 dB
>
>
>
>
> There is no antenna listed. Is this a firmware or hardware problem?
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: <http://lists.ettus.com/pipermail/usrp-users_lists.
> ettus.com/attachments/20180430/016b24c5/attachment-0001.html>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 30 Apr 2018 16:09:22 -0400
> From: "Marcus D. Leech" <mle...@ripnet.com>
> To: usrp-users@lists.ettus.com
> Subject: Re: [USRP-users] Fwd: USRP No antenna port listed
> Message-ID: <5ae777f2.3010...@ripnet.com>
> Content-Type: text/plain; charset="windows-1252"; Format="flowed"
>
> On 04/30/2018 02:54 PM, Daniel Guarecuco via USRP-users wrote:
> > Hi,
> > I have an USRP1 with a BasicTX and a BasicRX.
> > I have been trying to receive data with no luck,  it seems there is a
> > problem with the antenna port.
> > I run uhd_usrp_probe.exe and this is what I get:
> >
> > C:\Program Files\UHD\bin>uhd_usrp_probe [INFO] [UHD] Win32; Microsoft
> > Visual C++ version 14.0; Boost_105900; UHD_3.11.0.
> > 0-release
> > [INFO] [NIRIO] rpc_client stopping...
> > [INFO] [NIRIO] rpc_client stopped.
> > [ERROR] [UHD] Device discovery error: input stream error [INFO]
> > [USRP1] Opening a USRP1 device...
> > [INFO] [USRP1] Using FPGA clock rate of 64.000000MHz...
> >   _____________________________________________________
> >  /
> > |       Device: USRP1 Device
> > |     _____________________________________________________
> > |    /
> > |   |       Mboard: USRP1
> > |   |   serial: 480f888c
> > |   |   name: USRP_ettus
> > |   |
> > |   |   Time sources:  none
> > |   |   Clock sources: internal
> > |   |   Sensors:
> > |   |     _____________________________________________________
> > |   |    /
> > |   |   |       RX DSP: 0
> > |   |   |
> > |   |   |   Freq range: -32.000 to 32.000 MHz
> > |   |     _____________________________________________________
> > |   |    /
> > |   |   |       RX DSP: 1
> > |   |   |
> > |   |   |   Freq range: -32.000 to 32.000 MHz
> > |   |     _____________________________________________________
> > |   |    /
> > |   |   |       RX Dboard: A
> > |   |   |   ID: Basic RX (0x0001)
> > |   |   |     _____________________________________________________
> > |   |   |    /
> > |   |   |   |       RX Frontend: AB
> > |   |   |   |   Name: BasicRX (AB)
> > |   |   |   |   Antennas:
> > |   |   |   |   Sensors:
> > |   |   |   |   Freq range: -250.000 to 250.000 MHz
> > |   |   |   |   Gain Elements: None
> > |   |   |   |   Bandwidth range: 500000000.0 to 500000000.0 step 0.0 Hz
> > |   |   |   |   Connection Type: IQ
> > |   |   |   |   Uses LO offset: No
> > |   |   |     _____________________________________________________
> > |   |   |    /
> > |   |   |   |       RX Frontend: BA
> > |   |   |   |   Name: BasicRX (BA)
> > |   |   |   |   Antennas:
> > |   |   |   |   Sensors:
> > |   |   |   |   Freq range: -250.000 to 250.000 MHz
> > |   |   |   |   Gain Elements: None
> > |   |   |   |   Bandwidth range: 500000000.0 to 500000000.0 step 0.0 Hz
> > |   |   |   |   Connection Type: QI
> > |   |   |   |   Uses LO offset: No
> > |   |   |     _____________________________________________________
> > |   |   |    /
> > |   |   |   |       RX Frontend: A
> > |   |   |   |   Name: BasicRX (A)
> > |   |   |   |   Antennas:
> > |   |   |   |   Sensors:
> > |   |   |   |   Freq range: -250.000 to 250.000 MHz
> > |   |   |   |   Gain Elements: None
> > |   |   |   |   Bandwidth range: 250000000.0 to 250000000.0 step 0.0 Hz
> > |   |   |   |   Connection Type: I
> > |   |   |   |   Uses LO offset: No
> > |   |   |     _____________________________________________________
> > |   |   |    /
> > |   |   |   |       RX Frontend: B
> > |   |   |   |   Name: BasicRX (B)
> > |   |   |   |   Antennas:
> > |   |   |   |   Sensors:
> > |   |   |   |   Freq range: -250.000 to 250.000 MHz
> > |   |   |   |   Gain Elements: None
> > |   |   |   |   Bandwidth range: 250000000.0 to 250000000.0 step 0.0 Hz
> > |   |   |   |   Connection Type: Q
> > |   |   |   |   Uses LO offset: No
> > |   |   |     _____________________________________________________
> > |   |   |    /
> > |   |   |   |       RX Codec: A
> > |   |   |   |   Name: ad9522
> > |   |   |   |   Gain range pga: 0.0 to 20.0 step 1.0 dB
> > |   |     _____________________________________________________
> > |   |    /
> > |   |   |       RX Dboard: B
> > |   |   |     _____________________________________________________
> > |   |   |    /
> > |   |   |   |       RX Frontend: 0
> > |   |   |   |   Name: Unknown (0xffff) - 0
> > |   |   |   |   Antennas:
> > |   |   |   |   Sensors:
> > |   |   |   |   Freq range: 0.000 to 0.000 MHz
> > |   |   |   |   Gain Elements: None
> > |   |   |   |   Bandwidth range: 0.0 to 0.0 step 0.0 Hz
> > |   |   |   |   Connection Type: IQ
> > |   |   |   |   Uses LO offset: No
> > |   |   |     _____________________________________________________
> > |   |   |    /
> > |   |   |   |       RX Codec: B
> > |   |   |   |   Name: ad9522
> > |   |   |   |   Gain range pga: 0.0 to 20.0 step 1.0 dB
> > |   |     _____________________________________________________
> > |   |    /
> > |   |   |       TX DSP: 0
> > |   |   |
> > |   |   |   Freq range: -44.000 to 44.000 MHz
> > |   |     _____________________________________________________
> > |   |    /
> > |   |   |       TX DSP: 1
> > |   |   |
> > |   |   |   Freq range: -44.000 to 44.000 MHz
> > |   |     _____________________________________________________
> > |   |    /
> > |   |   |       TX Dboard: A
> > |   |   |   ID: Basic TX (0x0000)
> > |   |   |     _____________________________________________________
> > |   |   |    /
> > |   |   |   |       TX Frontend: AB
> > |   |   |   |   Name: BasicTX (AB)
> > |   |   |   |   Antennas:
> > |   |   |   |   Sensors:
> > |   |   |   |   Freq range: -250.000 to 250.000 MHz
> > |   |   |   |   Gain Elements: None
> > |   |   |   |   Bandwidth range: 500000000.0 to 500000000.0 step 0.0 Hz
> > |   |   |   |   Connection Type: IQ
> > |   |   |   |   Uses LO offset: No
> > |   |   |     _____________________________________________________
> > |   |   |    /
> > |   |   |   |       TX Frontend: BA
> > |   |   |   |   Name: BasicTX (BA)
> > |   |   |   |   Antennas:
> > |   |   |   |   Sensors:
> > |   |   |   |   Freq range: -250.000 to 250.000 MHz
> > |   |   |   |   Gain Elements: None
> > |   |   |   |   Bandwidth range: 500000000.0 to 500000000.0 step 0.0 Hz
> > |   |   |   |   Connection Type: QI
> > |   |   |   |   Uses LO offset: No
> > |   |   |     _____________________________________________________
> > |   |   |    /
> > |   |   |   |       TX Frontend: A
> > |   |   |   |   Name: BasicTX (A)
> > |   |   |   |   Antennas:
> > |   |   |   |   Sensors:
> > |   |   |   |   Freq range: -250.000 to 250.000 MHz
> > |   |   |   |   Gain Elements: None
> > |   |   |   |   Bandwidth range: 250000000.0 to 250000000.0 step 0.0 Hz
> > |   |   |   |   Connection Type: I
> > |   |   |   |   Uses LO offset: No
> > |   |   |     _____________________________________________________
> > |   |   |    /
> > |   |   |   |       TX Frontend: B
> > |   |   |   |   Name: BasicTX (B)
> > |   |   |   |   Antennas:
> > |   |   |   |   Sensors:
> > |   |   |   |   Freq range: -250.000 to 250.000 MHz
> > |   |   |   |   Gain Elements: None
> > |   |   |   |   Bandwidth range: 250000000.0 to 250000000.0 step 0.0 Hz
> > |   |   |   |   Connection Type: Q
> > |   |   |   |   Uses LO offset: No
> > |   |   |     _____________________________________________________
> > |   |   |    /
> > |   |   |   |       TX Codec: A
> > |   |   |   |   Name: ad9522
> > |   |   |   |   Gain range pga: -20.0 to 0.0 step 0.1 dB
> > |   |     _____________________________________________________
> > |   |    /
> > |   |   |       TX Dboard: B
> > |   |   |     _____________________________________________________
> > |   |   |    /
> > |   |   |   |       TX Frontend: 0
> > |   |   |   |   Name: Unknown (0xffff) - 0
> > |   |   |   |   Antennas:
> > |   |   |   |   Sensors:
> > |   |   |   |   Freq range: 0.000 to 0.000 MHz
> > |   |   |   |   Gain Elements: None
> > |   |   |   |   Bandwidth range: 0.0 to 0.0 step 0.0 Hz
> > |   |   |   |   Connection Type: IQ
> > |   |   |   |   Uses LO offset: No
> > |   |   |     _____________________________________________________
> > |   |   |    /
> > |   |   |   |       TX Codec: B
> > |   |   |   |   Name: ad9522
> > |   |   |   |   Gain range pga: -20.0 to 0.0 step 0.1 dB
> >
> >
> >
> >
> > There is no antenna listed. Is this a firmware or hardware problem?
> >
> There isn't a problem.  The BASIC_RX doesn't have switchable antennas.
>
> There are two distinct parameters involved.  One describes the signal
> chain via the subdevice specification, and the other describes any
> switchable antenna
>    ports available on that connection.  In the case of BASIC_*, there are
> no switchable antenna connections--in fact that is true for some other
> boards
>    as well.
>
> https://files.ettus.com/manual/page_dboards.html#dboards_basicrx
>
> Instead, on the BASIC_RX, you'd use the subdevice spec to tell the
> hardware what you're interested in.
>
> For the "A" side of your USRP1:
>
> A:A A:B A:AB A:BA
>
> Are all plausible
>
> For the "B" side:
>
> B:A B:B B:AB B:BA
>
> Are all plausible for your subdev spec.
>
> What I don't recall is whether there are enough DDC resources in the
> USRP1 to support all 4 input as separate real-mode streams.  I think you
> need
>    to specific the usrp1_fpga_4rx.rbf  FPGA image when you instantiate the
> device (via the fpga= argument), and that image precludes the use
>    of TX at all (because there aren't enough resources in the FPGA to
> support TX when you have 4 DDC channels).
>
> The USRP1 is now obsolete, and no new work is being done on it.
>
>
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: <http://lists.ettus.com/pipermail/usrp-users_lists.
> ettus.com/attachments/20180430/54c961de/attachment-0001.html>
>
> ------------------------------
>
> Message: 3
> Date: Mon, 30 Apr 2018 23:32:41 +0200
> From: Marcus M?ller <marcus.muel...@ettus.com>
> To: Brian Gieryk <ke6...@mac.com>
> Cc: usrp-users <usrp-users@lists.ettus.com>
> Subject: Re: [USRP-users] New (soon) owner question (USB3 over
>         Ethernet)
> Message-ID: <1525123961.20313.84.ca...@ettus.com>
> Content-Type: text/plain; charset="UTF-8"
>
> Ah! The situation is different then!
> Chances are that the same bandwidth will still fit through USB2, and since
> USB3 is backwards compatible: You don't even have a problem :) Just connect
> your B200 as you did your HackRF.
>
> Note that full-duplex might need more USB bandwidth than half, but I guess
> the easiest way to figure that out is to try :)
>
> Best regards,
> Marcus
>
> On Sun, 2018-04-29 at 16:44 -0600, Brian Gieryk wrote:
> > I am currently running a HackRF on a Pi 3B, doing multi frequency NBFM
> > RX, VHF-Hi and UHF (monitoring multiple frequencies on large fires).
> >
> > Would like a single radio solution (HackRF can not be both source and
> > sink in GNUradio, so 2 boxes must be used).
> >
> > Brian
> > KE6IYC
> >
> >
> > Sent from my iPhone
> >
> > > On Apr 29, 2018, at 16:14, Marcus M?ller <marcus.muel...@ettus.com>
> > > wrote:
> > >
> > > Hi Brian!
> > >
> > > It probably won't work great: since USB and ethernet are
> > > fundamentally different, the round-trip delay won't be of any fun,
> > > and I really don't see why you should spend your money on a
> > > network-connected USB3 hub (wasn't even aware something like that
> > > existed!) to couple a computer with USB2 to a USB3 device.
> > >
> > > You should really directly opt for a computer with a USB3 port.
> > > Also,
> > > Software Defined Radio at rates that require USB3 (instead of only
> > > USB2, since you can also use USB2 if your sampling rates are below
> > > ca
> > > 10 MS/s) usually means a high CPU demand ? not sure that the Pi3 is
> > > the universally best choice here. (I want so say that: very likely
> > > it's
> > > not.)
> > >
> > > So, to be honest: simply start with a decent desktop or laptop PC,
> > > preferably running Linux; you might already be using one, so this is
> > > a zero cost option initially. Whatever you design there can (unless
> > > you do something architecture-specific) be ported to an ARM like
> > > that in the Pi easily (if necessary at all), but you're not subject
> > > to the computational limitations of the Pi while you design your
> > > system.
> > > When
> > > you've shown it works, you can try to make it work on a Pi -
> > > optimize the things that are bottlenecks and so on.
> > >
> > > But: you surely wouldn't be considering the Pi up front if you
> > > didn't have an application for such a device: What are you working
> > > on? Can we help you with feedback, suggestions or just
> > > encouragement?
> > >
> > > Best regards,
> > > Marcus
> > >
> > > > On Sun, 2018-04-29 at 15:54 -0600, Brian Gieryk via USRP-users
> > > > wrote:
> > > > Forgive me, please, if this has been asked before, but I find no
> > > > way to search the archives.
> > > >
> > > > I am currently shopping for a B200/B200 mini for experimenting.
> > > >
> > > > I will be using a Raspberry Pi 3B+ (gigabit Ethernet), GNUradio,
> > > > and am wondering if anyone has used/tried network attached USB
> > > > hubs to use a USB3 device with a computer that only has USB2
> > > > ports?
> > > >
> > > > Good bad or indifferent, does it work?
> > > >
> > > > Thank you in advance,
> > > >
> > > > Brian
> > > > KE6IYC
> > > >
> > > >
> > > >
> > > > Sent from my iPhone
> > > > _______________________________________________
> > > > USRP-users mailing list
> > > > USRP-users@lists.ettus.com
> > > > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.co
> > > > m
>
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 1 May 2018 22:13:49 +1000
> From: Ronakraj Gosalia <mastergosa...@gmail.com>
> To: usrp-users <usrp-users@lists.ettus.com>
> Subject: [USRP-users] Turbo Product Codes on USRP E312
> Message-ID:
>         <CAKy6aSAh97A4J-g=ksNdAMQJ3n1uKn6QnJojdw_x8S1hOhzCMw@mail.
> gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi everyone,
>
> I am using a USRP E312 with GNU Radio 3.7.10.2. GNU Radio has an inbuilt
> FEC block that supports Turbo Product Codes (TPC). I'm trying to run a
> flowgraph (completely in simulation) on the E312 that includes a TPC
> encoder and decoder. The TPC parameters are:
>
> parallelism: 0
> row encoding polynomial: 3
> column encoding polynomial: 123
> K Row: 3
> K Column: 18
> B: 0
> Q: 6
>
> This is a standard 1/2 rate TPC with 6 data byte frame and 12 coded byte
> frame as per slide 6 on https://kirankarra.files.
> wordpress.com/2016/01/sep18_02_karra_turbocodes.pdf.
> On my host machine running Ubuntu 16.04 LTS the flowgraph simulates as
> expected and my ASYNC FEC encoding and decoding blocks with TPC work and
> decode properly. I copied across the exact same flowgraph to my E312 and
> ran it on there, but the decoded bits that come out of the FEC Decoder
> (diagnosed using a Message Debug block) are all 0s. It's as if the TPC
> decoder has not attempted to decode at all and prints out the default
> initialised vector of 0s. I tried all types of TPC decoding including
> LOG-MAP C factor, LOG-MAP LUT factor, Constant LOG-MAP, max LOG-MAP and
> Linear LOG-MAP with various levels of iterations from 1-6. All yielded the
> same response. I even tried to use a ZMQ push/pull sink/source and
> offloaded the FEC decoding to my host machine while everything else leading
> up to it was done on the E312 - this works perfectly and the FEC decoding
> performs as expected on my host laptop.
>
> I suspect there's a subtle bit of code that is malfunctioning on the E312,
> but there's no diagnosis output that hint at where this may be. For
> reference, I followed the instructions here https://kb.ettus.com/Software_
> Development_on_the_E3xx_USRP_-_Building_RFNoC_UHD_/_GNU_
> Radio_/_gr-ettus_from_Source
> to setup my E312. I have not faced an issue like this before with any
> other block either in tree or out of tree.
>
> Has anyone experienced an issue like this before or know where I should
> look?
> Thank you for reading and for your help in advance :).
>
> Kind Regards,
>
> Ronakraj
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: <http://lists.ettus.com/pipermail/usrp-users_lists.
> ettus.com/attachments/20180501/ba3b2a6c/attachment-0001.html>
>
> ------------------------------
>
> Message: 5
> Date: Tue, 1 May 2018 14:31:37 +0000
> From: Allouche Ishai <ishai.allou...@elbitsystems.com>
> To: "usrp-users@lists.ettus.com" <usrp-users@lists.ettus.com>
> Subject: [USRP-users] How to define FIR RFnoc block with float taps
> Message-ID:
>         <0bf926169829cd4899242577bc25e30414ea7...@mxbnb02.esl.corp.
> elbit.co.il>
>
> Content-Type: text/plain; charset="us-ascii"
>
> Hi all,
>
> I try to use the FIR filter and define the taps to be float number, but
> the problem is that the taps must to be integer number.
>
> Can someone please help me how solve this issue.
>
> Thanks in advance
> Ishai
>
>
> The information in this e-mail transmission contains proprietary and
> business sensitive information.  Unauthorized interception of this e-mail
> may constitute a violation of law. If you are not the intended recipient,
> you are hereby notified that any review, dissemination, distribution or
> duplication of this communication is strictly prohibited. You are also
> asked to contact the sender by reply email and immediately destroy all
> copies of the original message.
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: <http://lists.ettus.com/pipermail/usrp-users_lists.
> ettus.com/attachments/20180501/d4e50692/attachment-0001.html>
>
> ------------------------------
>
> Message: 6
> Date: Tue, 01 May 2018 16:59:29 +0200
> From: Marcus M?ller <marcus.muel...@ettus.com>
> To: Allouche Ishai <ishai.allou...@elbitsystems.com>,
>         "usrp-users@lists.ettus.com" <usrp-users@lists.ettus.com>
> Subject: Re: [USRP-users] How to define FIR RFnoc block with float
>         taps
> Message-ID: <1525186769.20313.88.ca...@ettus.com>
> Content-Type: text/plain; charset="UTF-8"
>
> Dear Ishai,
>
> convert the taps to integers. This typically involves scaling with a power
> of two (pick one that would allow the matching signal to stay within
> numerical limits of your internal stream format) and rounding.
> No magic involved here :)
>
> Best regards,
> Marcus
> On Tue, 2018-05-01 at 14:31 +0000, Allouche Ishai via USRP-users wrote:
> > Hi all,
> >
> > I try to use the FIR filter and define the taps to be float number,
> > but the problem is that the taps must to be integer number.
> >
> > Can someone please help me how solve this issue.
> >
> > Thanks in advance
> > Ishai
> >
> >
> > The information in this e-mail transmission contains proprietary and
> > business sensitive information.  Unauthorized interception of this
> > e-mail may constitute a violation of law. If you are not the intended
> > recipient, you are hereby notified that any review, dissemination,
> > distribution or duplication of this communication is strictly
> > prohibited. You are also asked to contact the sender by reply email
> > and immediately destroy all copies of the original message.
> > _______________________________________________
> > USRP-users mailing list
> > USRP-users@lists.ettus.com
> > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>
>
>
> ------------------------------
>
> Subject: Digest Footer
>
> _______________________________________________
> USRP-users mailing list
> USRP-users@lists.ettus.com
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>
>
> ------------------------------
>
> End of USRP-users Digest, Vol 93, Issue 1
> *****************************************
>
> _______________________________________________
> USRP-users mailing list
> USRP-users@lists.ettus.com
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>
_______________________________________________
USRP-users mailing list
USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com

Reply via email to