Configuring USB Interfaces on Nvidia Jetson Orin Nano Dev Board

Issue Overview

Users customizing the Nvidia Jetson Orin Nano series carrier board are seeking clarification on USB interface configuration options. The main concerns revolve around splitting the recovery interfaces and setting up standard USB Type-A interfaces using the module’s resources. This issue is crucial for developers looking to optimize their board’s USB connectivity while maintaining essential functionality.

Possible Causes

1. Limited understanding of USB interface capabilities: Users may not be fully aware of the USB configuration options available on the Orin Nano series.

2. Confusion regarding USB 2.0 and USB 3.0 compatibility: There might be misconceptions about how USB 2.0 and USB 3.0 interfaces can be combined or used independently.

3. Uncertainty about recovery mode interface requirements: Users may be unsure about the flexibility of recovery mode interfaces and their potential for alternative uses.

4. Lack of clear documentation: Insufficient or unclear documentation from Nvidia regarding USB interface configuration options could contribute to user confusion.

Troubleshooting Steps, Solutions & Fixes

1. Understanding USB interface splitting:

   • USB 2.0 (USB0) can function independently.
   • USB 3.0 (USBSS) requires pairing with a USB 2.0 pin to operate.

2. Configuring recovery interfaces:

   • USB0 can continue to function as the recovery mode interface.
   • USBSS1 can be connected to other devices, but it must be paired with a USB 2.0 pin.

3. Setting up standard USB Type-A interfaces:

   • Configure USB1 and USBSS0 as a pair for one USB Type-A interface.
   • Configure USB2 and USBSS2 as a pair for another USB Type-A interface.

4. Best practices for USB configuration:

   • Always pair a USB 3.0 (USBSS) interface with a USB 2.0 pin when configuring.
   • Maintain at least one dedicated recovery mode interface (e.g., USB0) for system recovery purposes.
   • Consult the Jetson Orin Nano Developer Kit carrier board design files for reference when customizing your board.

5. Verifying USB functionality:

   • After configuration, test each USB interface to ensure proper functionality.
   • Use appropriate tools or software to verify USB 2.0 and USB 3.0 speeds on configured interfaces.

6. Troubleshooting connectivity issues:

   • If a USB 3.0 interface is not working, verify that it is properly paired with a USB 2.0 pin.
   • Check for any physical damage to USB connectors or traces on the custom carrier board.
   • Ensure proper power delivery to USB interfaces, especially for high-power USB 3.0 devices.

7. Updating firmware and drivers:

   • Keep the Jetson Orin Nano’s firmware and drivers up to date to ensure compatibility with various USB configurations.
   • Check Nvidia’s developer portal for the latest updates and documentation on USB interface management.

By following these guidelines and solutions, users should be able to successfully configure and utilize the USB interfaces on their customized Nvidia Jetson Orin Nano carrier boards while maintaining essential functionality such as recovery mode access.