Can’t find tegra234-p3768-0000+p3767-0003.dtb

Issue Overview

Users have reported difficulty locating the device tree blob file tegra234-p3768-0000+p3767-0003.dtb while working with the Nvidia Jetson Orin Nano 8GB (P3767-0003) Commercial module. The issue arises after downloading and uncompressing the Linux 36.2 L4T BSP from the Nvidia Developer site. Users have noted that they can only find the device tree blob for the developer kit (tegra234-p3768-0000+p3767-0005.dtb) in the directory Linux_for_Tegra/kernel/dtb.

The problem typically occurs during the setup phase of the development environment, specifically when users are trying to configure their boards for development purposes. The frequency of this issue appears to be consistent among users who are using the specified version of the BSP. The inability to locate the correct device tree blob can significantly hinder development efforts, as it may prevent users from properly configuring their hardware.

Possible Causes

• Version Mismatch: Users may be using an outdated version of the BSP (36.2) that does not include the necessary files for the Commercial module.

• Incorrect File Path: The required device tree blob may be located in a different directory or under a different naming convention than expected.

• Incomplete Download: There is a possibility that the downloaded BSP was incomplete or corrupted, leading to missing files.

• User Confusion: Users may not be aware that they can use device tree blobs from the developer kit, which could lead to unnecessary complications.

Troubleshooting Steps, Solutions & Fixes

1. Check BSP Version:

   • Ensure that you are using the latest version of the Jetson Linux BSP. Move to version 36.3 or later, as version 36.2 is a developer preview and not recommended for use.
   • To download the latest version, visit the Nvidia Developer website and navigate to Jetson Linux releases.

2. Locate Device Tree Blob:

   • After updating to version 36.3, navigate to Linux_for_Tegra/kernel/dtb to check for tegra234-p3768-0000+p3767-0003.dtb.
   • If you still cannot find it, verify if it has been renamed or moved in this version.

3. Use Developer Kit Files:

   • If you cannot find the specific Commercial module file, consider using tegra234-p3768-0000+p3767-0005.dtb from the developer kit as an alternative.
   • Be cautious and test thoroughly, as this may not provide full compatibility.

4. Verify Download Integrity:

   • Ensure that your download of the BSP was complete and not corrupted. You may want to re-download it if you suspect any issues.

5. Community Support:

   • If issues persist, consider reaching out on forums or community support channels for additional guidance or to confirm if others have faced similar problems.

6. Documentation Review:

   • Review Nvidia’s official documentation regarding device tree blobs and their configurations for any additional insights or updates.

7. Best Practices:

   • Regularly check for updates on Nvidia’s developer site.
   • Keep backup copies of your working configurations and files.
   • Document any changes made during troubleshooting for future reference.

By following these steps, users should be able to resolve issues related to locating the required device tree blob for their Nvidia Jetson Orin Nano Dev board effectively.