Accessing the SoC via the UART Interface

Managing the SoC on Napatech IPUs

Platform
Napatech IPU
Content Type
Application Note

Use this information to establish a serial connection to the SoC via the UART interface and a USB-to-UART-3.3V cable.

Before you begin

Make sure that you have:

About this task

This procedure describes how to access the system on the IPU via the UART interface and a USB-to-UART-3.3V cable,

Procedure

  1. Connect the USB end of the USB-to-UART-3.3V cable to an available USB port on a server.
  2. Identify the USB serial device.
    On the server, open a terminal and run the following command to identify the USB serial device:
    ls /dev/ttyUSB*
    This command lists all available USB serial devices. An output example:
    /dev/ttyUSB0
    The specific device name with the correct number must be used in the subsequent step.
  3. Connect to the IPU.
    On the server, use a terminal emulator program such as picocom, minicom, or screen to establish the serial connection. For example:
    picocom -b 115200 /dev/ttyUSB<x>
    where x is the device number that you obtained in the previous step. For example:
    picocom -b 115200 /dev/ttyUSB0
    An output example:
    port is        : /dev/ttyUSB0
    flowcontrol    : none
    baudrate is    : 115200
    parity is      : none
    databits are   : 8
    stopbits are   : 1
    …
    …
    Type [C-a] [C-h] to see available commands
    Terminal ready
    
    d178 login: root
    Password:
    In the output, a login prompt is shown on the serial console. You can log in to the IPU using the following default credentials.
    • User name: root
    • Password: ipuadm123