SSH Debugging for Rockchip (EASY EAI) RV1126B

SSH Debugging

1. Network Debugging

1.1 Wiring Instructions

EASY EAI Nano-TB supports remote desktop login debugging via SSH using MobaXterm. First, use an Ethernet cable to connect the Gigabit Ethernet port of EASY EAI Nano-TB to a switch connected to the router's LAN port or directly to the router's LAN port, as shown in the figure below.

In addition, a serial port connection is also required.

Refer to the instructions in the article《Getting Started Guide / Introduction to Development Board Debugging Methods / Serial Port Debugging》log in to EASY EAI Nano-TB via the serial port, and use the ip addr command to check the IP addresses dynamically assigned by the router to the eth0 network card and wlan0 network card.

ip addr

The queried assigned IP addresses are as follows:

• [eth0] - IP Address: 192.168.3.86, Subnet Mask (24): 255.255.255.0
• [eth1] - No Ethernet cable connected, so no IP information is available
• [wlan0] - IP Address: 192.168.3.87, Subnet Mask (24): 255.255.255.0

Use these IP addresses to perform mutual ping tests with the computer. Only after successful mutual ping can you log in via SSH.

1.2 Using PuTTY

The following demonstrates how to establish an SSH connection using PuTTY.

Configure "Session" on the left: select "SSH", enter the IP address of any network card of the board (taking eth0 as an example), and finally click "Open", as shown in the figure below.

• During the first connection, the SSH client (PuTTY) will generate an SSH key based on the SSH host's IP address and other information to bind and mark the SSH host and its corresponding IP address. If the IP address of the SSH host changes, or if another SSH host uses an IP address that has been previously recorded (resulting in a mismatch between the SSH host and the IP address), a connection failure may occur. In this case, the user needs to manually clear the binding between the SSH host and the IP address in the client (PuTTY). For specific clearing methods, users should refer to the documentation of the SSH client they are using; detailed instructions are not provided here.

• After clicking "Accept", you will be prompted to enter login information, as shown in the figure below.

1.3 Username and Password

• EASY EAI Nano-TB Username: nano
• EASY EAI Nano-TB Password: 123456

The purchase link for the test products is as follows:https://www.easy-eai.store/collections/%E5%BC%80%E5%8F%91%E6%9D%BF%E6%A0%B8%E5%BF%83%E6%9D%BF/products/easy-eai-rv1126b-development-board-core-board-3t-computing-power-npu-open-source-hardware-linux-embedded-arm