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Contents
1 Kit Contents
1.1 N300
1.2 N310
1.3 N320
1.4 N321
2 Verify the Contents of Your Kit
3 You Will Need
4 Proper Care and Handling
5 Install and Setup the Software Tools on Your Host Computer
6 Connecting the Device
6.1 Interfaces Overview
6.2 Setting up a Serial Console Connection
6.3 Connecting to the ARM via SSH
7 Updating the Linux File System
7.1 File System Partition Layout
7.2 Updating the file system with Mender
7.3 Updating the files system by writing the disk image
8 Updating the Network Configurations
9 Updating the FPGA Image
9.1 Network Mode FPGA Image Update
9.2 Embedded Mode FPGA Image Update
10 Setting Up a Streaming Connection
10.1 1Gb Streaming SFP Port 0
10.2 10Gb Streaming SFP Port 1
10.3 Dual 10Gb Streaming SFP Ports 0/1
11 Verifying Device Operation
11.1 Subdevice Specification Mapping
11.2 Supported Sample Rates
11.3 Probe the USRP
11.4 ASCII Art Example
11.5 Benchmarking your system
12 USRP N3xx Device Specific Operations
12.1 White Rabbit Ethernet-Based Synchronization
12.2 N320/N321
12.3 Turning the Device Off/On
12.4 Enable Auto Booting
12.5 Default Password
13 Technical Support and Community Knowledge Base
14 Legal Considerations
15 Sales and Ordering Support
16 Terms and Conditions of Sale
USRP N300
DC Power Supply (12V, 7A)
1 RJ45 ? SFP+ Adapter
1 Gigabit Ethernet Cat-5e
Cable (3m)
USB-A to Micro USB-B
Cable (1m)
Getting Started Guide
Ettus Research Sticker
N321 Getting Started Guide
6.2.1 Connecting to the microcontroller
7.2.1 Mender Update Process
11.1.1 N300
11.1.2 N310
11.1.2.1 UHD 3.11.x.x - 3.12.x.x
11.1.2.2 UHD 3.13.x.x+
11.1.3 N320
11.1.4 N321
11.2.1 Example Sample Rates
11.2.2 N320/N321 Example Sample Rates
11.3.1 N300/N310
11.3.2 N320
11.3.3 N321
11.5.1 1 Gb Interface
11.5.2 10 Gb Interface SFP 1
11.5.3 Dual 10 Gb Interface

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Summary of Contents for ettus N321

  • Page 1 11.1.2.2 UHD 3.13.x.x+ ⋅ 11.1.3 N320 ◊ ◊ 11.1.4 N321 ♦ 11.2 Supported Sample Rates 11.2.1 Example Sample Rates ◊ 11.2.2 N320/N321 Example Sample Rates ◊ 11.3 Probe the USRP ♦ 11.3.1 N300/N310 ◊ 11.3.2 N320 ◊ 11.3.3 N321 ◊...
  • Page 2 Linux operating system running on ARM CPU. All Ettus Research products are individually tested before shipment. The USRP is guaranteed to be functional at the time it is received by the customer. Improper use or handling of the USRP can cause the device to become non-functional. Take the following precautions to prevent damage to the unit.
  • Page 3 Devices. When you receive a brand-new device, it is strongly recommended that you download the most recent filesystem image from the Ettus Research website and write it to the SD card that comes with the unit. It is not recommended that you use the SD card from the factory as-is.
  • Page 4 Enter the username: ? root By default, the user's password is left blank. Press the key when prompted for a password. root Enter You should now be presented with a shell prompt similar to the following: root@ni-n3xx-<motherboard serial #>:~# Using the default configuration, the serial console will show all kernel log messages (which are not available when using SSH), and give access to the boot loader (U-boot prompt).
  • Page 5 USRPs with a few clicks in a web GUI. The dashboard can also be used to inspect the state of USRPs. This is a simple way to update groups of rack-mounted USRPs with custom file systems. For more information on updating the file-system, refer to the UHD Manual at ?https://uhd.ettus.com. Please see the separate application note,...
  • Page 6 9000 For addition details on network configuration here: https://files.ettus.com/manual/page_usrp_n3xx.html#n3xx_network_configuration The FPGA image should match the version of UHD installed on the host computer, when operated in Network mode. Connect the device to the host computer using either the RJ45 or SFP+ port, refer to the section above for detailed instructions.
  • Page 7 [INFO] [MPMD IMAGE LOADER] Update component function succeeded. For more information on updating the FPGA image, refer to the UHD Manual at http://uhd.ettus.com The device supports multiple, high-speed, low-latency interfaces on the SFP+ ports for streaming samples to the host computer.
  • Page 8 Proceed to the next section "Verifying Device Operation". For more details on Network Setup and Configuration, please see the ?Interfaces and Connectivity? section on the N300/N310 N320/N321 hardware resources pages. Once you have successfully setup a management interface and streaming interface, you can now verify the devices operation using the include UHD utilities.
  • Page 9 RF Ports. RF0-1 subdev RF0 = A:0 • • RF1 = B:0 The USRP N321 contains 2 channels, each represented on the front panel as . Below is the mapping of RF Ports. RF0-1 subdev RF0 = A:0 •...
  • Page 10 [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: 0xD0C0000000000002) [INFO] [0/DUC_1] Initializing block control (NOC ID: 0xD0C0000000000002) _____________________________________________________ Device: N300-Series Device _____________________________________________________ Mboard: ni-n3xx-313ABDA eeprom_version: 1 mpm_version: 3.13.1.0-gd3b7e90a pid: 16962 product: n310...
  • Page 11 Gain range amp: 0.0 to 0.0 step 0.0 dB Bandwidth range: 20000000.0 to 100000000.0 step 0.0 Hz Connection Type: IQ Uses LO offset: No _____________________________________________________ TX Frontend: 1 Name: Magnesium Antennas: TX/RX Sensors: lo_locked, ad9371_lo_locked, lowband_lo_locked Freq range: 1.000 to 6000.000 MHz Gain range all: 0.0 to 65.0 step 0.5 dB Gain range rfic: 0.0 to 0.0 step 0.0 dB Gain range dsa: 0.0 to 0.0 step 0.0 dB...
  • Page 12 [INFO] [0/FIFO_0] Initializing block control (NOC ID: 0xF1F0000000000000) [INFO] [0/FIFO_1] Initializing block control (NOC ID: 0xF1F0000000000000) _____________________________________________________ Device: N300-Series Device _____________________________________________________ Mboard: ni-n3xx-3181FFA eeprom_version: 2 mpm_version: 3.14.0.0-g6875d061 pid: 16962 product: n320 rev: 6 rpc_connection: local serial: 3181FFA type: n3xx MPM Version: 1.2 FPGA Version: 5.3 FPGA git hash: 3de8954.clean RFNoC capable: Yes...
  • Page 13 RFNoC blocks on this device: * Replay_0 * Radio_0 * Radio_1 * DDC_0 * DDC_1 * DUC_0 * DUC_1 * FIFO_0 * FIFO_1 $ uhd_usrp_probe [INFO] [UHD] linux; GNU C++ version 7.3.1 20180712 (Red Hat 7.3.1-6); Boost_106400; UHD_3.14.0.0-0-g6875d061 [INFO] [MPMD] Initializing 1 device(s) in parallel with args: mgmt_addr=192.168.20.2,type=n3xx,product=n320,serial=3166646,claimed=False,addr= [INFO] [MPM.PeriphManager] init() called with device args `time_source=internal,clock_source=internal,product=n320,mgmt_addr=192.168.20.2'.
  • Page 14 2. From your host computer, run the command: N300/N310 $ /usr/local/lib/uhd/examples/rx_ascii_art_dft --args "master_clock_rate=125e6,mgmt_addr=192.168.1.151,addr=192.168.10.2" --freq 98.5e6 --rate N320/N321 $ /usr/local/lib/uhd/examples/rx_ascii_art_dft --args "master_clock_rate=250e6,mgmt_addr=192.168.1.151,addr=192.168.10.2" --freq 98.5e6 --rate NOTE: Modify the command− line argument ?above to specify a tuning frequency for a strong local FM radio station. You will also need to update freq the IP Address to match your device IP.
  • Page 15 --rx_rate 1.25e6 \ --rx_subdev "A:0 A:1 B:0 B:1" \ --tx_rate 1.25e6 \ --tx_subdev "A:0 A:1 B:0 B:1" N320/N321 This example will test one full-duplex stream using "RF0/A:0", at a rate of 3.84 MS/s, for 60 seconds: /usr/local/lib/uhd/examples/benchmark_rate --args "type=n3xx,mgmt_addr=192.168.1.151,addr=192.168.10.2,master_clock_rate=245.76e6" \ --duration 60 \ --channels "0"...
  • Page 16 --duration 60 \ --channels "0,1,2,3" \ --rx_rate 62.5e6 \ --rx_subdev "A:0 B:0" \ --tx_rate 62.5e6 \ --tx_subdev "A:0 B:0" Using Ethernet-Based Synchronization on the USRP? N3xx Devices • USRP N320/N321 LO Distribution • 5G NR EVM Measurements with the USRP N320/N321 •...
  • Page 17 Technical support for USRP hardware is available through email only. If the product arrived in a non−functional state or you require technical assistance, please contact support@ettus.com. Please allow 24 to 48 hours for response by email, depending on holidays and weekends, although we are often able to reply more quickly than that.