Accessing the SoC via the UART Interface

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

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