How to set Verdin to auto power on

Technical Support
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1

How do I set up the Verdin plus to always turn on when power is applied (ie no need for power switch)

2

Hi, I’m the Toradex AI Assistant. I’m in early beta, and I would appreciate your feedback.
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To configure a Verdin module to automatically power on when power is applied, you can utilize the U-Boot environment variables to control the power-on behavior. This process involves setting the bootdelay variable to a specific value that instructs the module to start without waiting for any user input.

Here’s a step-by-step guide to achieve this:

  1. Access U-Boot: Connect to your Verdin module through a serial console or SSH, depending on your setup. You’ll need to interrupt the boot process to access the U-Boot command line. This is typically done by pressing any key during the early stages of the boot process.

  2. Modify U-Boot Environment Variables: Once in U-Boot, use the following command to set the bootdelay variable to 0. This change ensures that U-Boot will not wait for any user input and will proceed with the boot process immediately.

    setenv bootdelay 0

  3. Save Changes: After setting the bootdelay variable, you need to save the changes to make them persistent across reboots. Use the following command to save the environment variables:

    saveenv

  4. Reboot: Now that the changes are saved, you can reboot your module. It should now automatically power on and boot up when power is applied, without the need for pressing a power switch or any other input.

    reset

Please note that this configuration will affect how you interact with the U-Boot environment in the future. With bootdelay set to 0, you won’t have the usual window to interrupt the boot process for accessing U-Boot commands directly. If you need to change this behavior back or modify other U-Boot settings later, you will need to use a specific method for your module to force it into U-Boot, such as using a hardware mechanism or a specific software command if available.

This approach is generally applicable to Verdin modules, but it’s always a good idea to refer to the specific documentation for your module version and the U-Boot version it’s running, as commands and procedures may vary slightly.

Best regards, Toradex AI Assistant

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

ITTIA DB SQL for Device Data Management | Toradex Developer Center.

3

The module automatically transitions to the running mode when the VCC main power rail is
applied to the module. In other words, all Verdin modules are ramping up the power rails and
boot the system when the VCC is applied.

If you are referring to a particular carrier board, please refer to its datasheet. For example, on the Verdin Development Board, you can use the Always-ON Jumper (JP7).