CSI-2 Ports Pin 1 Position Wrong in Docs?

Issue Overview

Users are reporting confusion regarding the physical location of pin 1 on the CSI-2 connectors (J20 and J21) of the Jetson Orin Nano Developer Kit. The documentation indicates that pin 1 is at the bottom of the 22-pin connector, which contradicts the physical layout observed by users. This discrepancy raises concerns about potential errors in connecting cameras, particularly regarding power connections, which could lead to damaging equipment.

Specific Symptoms

• Users are unable to determine the correct position of pin 1 on the CSI-2 connectors.
• Confusion arises due to conflicting information between the documentation and the actual connector layout.
• Concerns about damaging flat ribbon cables if connections are made incorrectly.

Context

The issue occurs while users are attempting to connect camera modules to the Jetson Orin Nano Developer Kit. Accurate identification of pin configurations is critical for ensuring proper power and data connections. Users reference specific documentation and assembly drawings that appear to contain errors.

Hardware/Software Specifications

• Hardware: Nvidia Jetson Orin Nano Developer Kit
• Documentation Reference: Jetson Orin Nano Developer Kit Carrier Board Specification SP-11324-001_v1.1

Frequency of Issue

This issue seems to be a common point of confusion among users working with the Jetson Orin Nano, indicating a potential oversight in the documentation provided by Nvidia.

Impact on User Experience

Misidentifying pin configurations can lead to incorrect connections, potentially damaging hardware components. This can hinder development efforts and create frustration among users who rely on accurate technical documentation.

Possible Causes

1. Documentation Errors: The carrier board specification document may contain inaccuracies regarding pin assignments.

   • Explanation: Errors in technical documents can lead users to make incorrect assumptions about hardware configurations.

2. Connector Design Confusion: The design of the connector itself may not be intuitive, leading to misinterpretation of its layout.

   • Explanation: If connectors are not clearly marked or designed in a way that aligns with standard practices, users may struggle to identify pin positions correctly.

3. Inconsistent Information Across Documents: Different documents may provide conflicting information regarding pin configurations.

   • Explanation: When multiple documents exist without clear alignment, users can become confused about which source to trust.

4. Lack of Visual Aids: The absence of clear diagrams or images showing pin layouts can exacerbate misunderstandings.

   • Explanation: Visual aids are crucial for accurately conveying hardware configurations, especially for complex connectors.

Troubleshooting Steps, Solutions & Fixes

1. Verify Connector Orientation:

   • Ensure that you are viewing the connector from the correct angle as specified in any accompanying diagrams or images.

2. Consult Updated Documentation:

   • Check for any updates or errata released by Nvidia regarding the carrier board specifications that may clarify pin configurations.

3. Cross-reference with Other Sources:

   • Look for community discussions or user experiences shared in forums that might provide additional insights into correct pin configurations.

4. Use a Multimeter:

   • If unsure about pin assignments, use a multimeter to test continuity between pins and their expected outputs (e.g., power and ground).

5. Contact Nvidia Support:

   • If discrepancies persist, consider reaching out to Nvidia support for clarification on documentation errors and recommended practices for connecting peripherals.

6. Document Your Findings:

   • Keep a record of any discrepancies you identify along with your solutions or workarounds, and consider sharing this information in forums or community discussions to help others facing similar challenges.

7. Request Visual Aids from Nvidia:

   • Suggest that Nvidia provide clearer diagrams or images in their documentation to aid users in correctly identifying pin layouts.

8. Unresolved Aspects:

   • Further investigation may be needed regarding specific connector designs and how they align with industry standards.
   • Users should continue sharing their experiences and findings in community forums to build a collective understanding of these issues.

By following these troubleshooting steps, users should be able to navigate challenges related to identifying pin configurations on their Nvidia Jetson Orin Nano Developer Kit effectively.