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Radxa OS

Introduces system login, network connection, etc to let user to be familiar with the system quickly.

User name and Password

The user name and password added by default to the Radxa ROCK S0 series are:

User name:radxa/rock
Password: radxa/rock

Serial Debug

Most of radxa's products define pins 8 (TX) and 10 (RX) on the GPIO pins as UART serial communication interfaces to make it easier to troubleshoot problems in the early startup phase of the system.

Preparation

  • Radxa product with GPIO, compatible power supply
  • PC
  • USB to TTL Serial Cable

USB to TTL

tip

For Radxa products based on Rockchip chips, the default UART configuration is 1500000n8 without flow control.

Please check if your USB to TTL serial cable supports 1.5M baud rate:

The Flowing text uses a serial cable based on CH340.

Serial Connection

As shown below, connect the USB to TTL serial cable:

Radxa SBCConnectionSerial Cable
GND (pin 6)<--->Black line
TX (pin 8)<--->White line
RX (pin 10)<--->Green line
danger

Please do not connect the red power line!

Using Serial Tools

For Radxa products based on Rockchip chips, the default UART configuration is as follows:

baudrate: 1500000
data bit: 8
stop bit: 1
parity : none
flow control: none

Windows

Putty is a serial tool that supports multiple baud rates on Windows. Here's how to use Putty to connect to the serial port.

  1. Download Putty and install it.

  2. Plug the USB to TTL serial cable into the PC, check the Device Manager to find the COM number. Here, assume it is COM3.

  3. Open Putty and set it up as follows:

  • Select Session in the left column, set the serial line to COM3, baud rate to 1500000, and connection type to Serial.
  • Write radxa-rock5 in the Saved Sessions column and click Save.

Putty

  1. Select Serial at the bottom of the left column and configure it as follows:

Putty

  1. After setting up, click Open to open the serial port. Make sure the TTL end is correctly connected, then turn on the power to the board.

FAQs

  1. When using the debug console, the system startup information is displayed on the screen, but I cannot enter text using the keyboard? It may be that Hardware Flow Control is enabled by default. After turning off Hardware Flow Control, it should return to normal.

Setting Network

Connect WiFi

nmcli device wifi                                           #Scan WiFi
sudo nmcli device wifi connect <ssid> password <passwd> #Connect WiFi

Ethernet

The Radxa ROCK S0 has 100M Ethernet on board, just connect the cable to enable internet access, use the ip a command to view the ip.

Remote Login

SSH Login

After connecting to the network, you can use SSH to debug remotely, the official Debian image has enabled SSH by default, you just need to get the IP of the board to use SSH to connect.

  • Debian/Ubuntu
ssh [username]@[hostname]
or
ssh [username]@[IP address]
Example:
ssh [email protected]
You can connect to the Debian system after entering your user password.
  • Windows

There are a number of SSH tools available for Windows, here's Mobaxterm to show you how to connect.

Click Session in the upper left corner to create a new SSH connection, enter the IP of the board in the Remote host field, tick Specify usernema and fill in the user who logs in, and then double-click on the session to start the connection and enter the login password to connect.

mobaxterm ssh