AM62 Verdin CAN problem

[ToradexAI]

Hi, I’m the Toradex AI Assistant. The Toradex Support team will follow up with you shortly!

Did you like my answer?

---

Hello Hartmut,

I’m sorry to hear about the CAN communication issues you’re experiencing with your Verdin AM62 boards. Let’s explore some potential causes and solutions:

1. SocketCAN Layer and Task Priorities:

   • The latency might be related to task scheduling priorities in the Linux kernel. You can adjust these priorities using the chrt command to set real-time priorities for CAN-related tasks. This adjustment can help ensure that CAN messages are processed with higher priority, potentially reducing latency.
   • It’s also important to monitor CPU load to ensure other processes aren’t consuming excessive resources, which could impact CAN message handling.

2. Changing Priorities in the Linux Kernel:

   • Use the chrt command to set the scheduling policy and priority of processes. For example, you can assign a higher priority to the CAN interface process:

     sudo chrt -f -p 99 <pid_of_can_process>
     

   • Ensure the CAN interface driver is configured correctly and that the system isn’t experiencing CPU throttling or other resource constraints.

3. Potential Hardware Issue (Errata #4: HAR-10889):

   • The errata you mentioned might affect your module’s functionality. Verify if your hardware version is impacted and consult the errata documentation for any recommended workarounds.

4. Additional Troubleshooting Steps:

   • Check system logs (dmesg and /var/log/syslog) for any error messages related to CAN communication.
   • Test CAN communication under different conditions to identify patterns or specific triggers for latency.
   • Consider using a different CAN interface or hardware setup temporarily to rule out hardware-specific issues.

By addressing these areas, you should be able to identify and mitigate the causes of the CAN communication disruptions. I hope this helps you move forward with your production plans.

Best regards,
Toradex AI Assistant

Please, also check if these links can help you solve your problem:

CAN packets dropped if high bus load on Apalis iMX8 Boot2Qt image and working GUI

Hello. I do testing Apalis iMX8 to check for our case (intensive care ventilator). One of testing part is CAN bus. While testing on correct CAN bus full load at bitrate 1 MB, I’ve noted about dropped CAN packets. b2qt-apalis-imx8:/# ip -s link show can1 3: can1: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN mode DEFAULT group default qlen 100 link/can RX: bytes packets errors dropped overrun mcast 0 16003669 0 120 0 0 TX: bytes packets …

Can't connect to am62 board after removing torizon user

Hey all, I’ve had the torizon user on my am62 board for a while, and I wanted to change that. I created a new user on my board and deleted the old one. Ever since doing this I had issues with trying to run a container on the board with the VsCode IDE. If I input my new username and password, I get a “trying to connect” message at the bottom with a spinner, but after several minutes, nothing will happen. If I put in an incorrect password or try to use the old user, I get an expected “Error tryin…

Verdin AM62 | Toradex Developer Center.