Whitepaper - USB Interoperability Testing for Intel RealSense Cameras hero

USB Interoperability Testing for Intel® RealSense™ Cameras

D415 D435 D435i D455 L515 Download PDF

Revision 1.0
 


Contents

  1. Introduction
       1.1 Purpose and Scope of This Document
       1.2 Terminology
       1.3 Equipment List
  2. Topologies and Tests
       2.1 Basic Topology
       2.2 Tests Performed
       2.3 Conclusion

 


Figures

 


Tables

 


Revision History

 

Revision Number Description Revision Date
001 Initial Release March 2021

 


1. Introduction

1.1 Purpose and Scope of This Document

This document captures the testing equipment and topology that is used when testing the Intel® RealSense™ Cameras for USB interoperability. The equipment, topology, and testing are done in accordance with the specification outlined here:
https://www.usb.org/document-library/xhci-interoperability-test-procedures-peripherals-hubs-and-hosts

1.2 Terminology

Table 1-1: Terminology

Acronym Term Description
xHCI Extensible Host Controller Interface USB 3.1 host controller specification
SSP SuperSpeedPlus USB 3.1 Gen 2 (10Gbps)
SS SuperSpeed USB 3.1 Gen 1 (5Gbps)
HS HighSpeed USB 2 (480Mbps)
HS MTT HighSpeed Hub w/MTT HighSpeed Hub with multiple translation translator
HS STT HighSpeed Hub w/STT HighSpeed Hub with single translation translator
FS FullSpeed USB 1.1 (12Mbps)
DUT Device Under Test  
U0/U1/U2/U3 USB 3 Power States U0 – Active current
U1 – Standby with fast exit
U2 – Standby with slower exit
U3 – Suspend current
LPM Link Power Management Link – A USB connection between two USB ports
LPM Transaction – USB transaction to transaction a link to a specific link power state
L0/L1 – USB 2 Link power states
Driver Verifier Driver Verifier Tool Microsoft Windows tool for catching device driver bugs

 

1.3 Equipment List

Table 1-2: Equipment List

Device Description
SSP Host Dell XPS 8930 Desktop
USB Gen2 PCI Express Card PCI Express Card with ASM3142 Chipset (ASMedia Technology Inc)
SSP Hub USB3.1 (Self-Powered) Realtek RTS5423 (FW Version 103)
SS Hub USB3.0 Gen1 (Self-Powered) Via VL811+ B2 step (FW Version 0982)
HS-MTT Hub (Self-Powered) Belkin F5U237
HS-STT Hub (Self-Powered) EVB-USB2422
FS Hub (Self-Powered) Belkin Economy USB 1.1 7-Port Hub F5U027
SSP Cable 1M Cables included with Realtek RTS5423
SSP Low Power Drive Via VL716 Evaluation Board (USB-C 3.1 Gen2) (FW Version 95.c0.41.b0)
SS/SSP Video Camera Logitech Brio
SS Display Adapter DisplayLink: DisplayLink DL-P002 Development Board
HS Drive Verbatim Store ’n’ Go USB2.0 64GB
FS Drive  
Keyboard Microsoft Natural Keyboard Pro
HS/FS Camera Microsoft LifeCam HD-3000
Mouse Microsoft Classic Intellimouse
Intel® RealSense™ Cameras Intel® RealSense™ Depth Camera D415
Intel® RealSense™ Depth Camera D435
Intel® RealSense™ Depth Camera D435i
Intel® RealSense™ Depth Camera D455
Intel® RealSense™ LiDAR Camera L515

 

2. Topologies and Tests

2.1 Basic Topology

Whitepaper - USB Interoperability Testing for Intel RealSense Cameras - Image 1

Figure 2-1. Basic Topology

Whitepaper - USB Interoperability Testing for Intel RealSense Cameras - Image 2

Figure 2-2. Basic Topology Change 1

Whitepaper - USB Interoperability Testing for Intel RealSense Cameras - Image 3

Figure 2-3. Basic Topology Change 2


 

2.2 Tests Performed

Table 2-1: Tests Performed

Test Chapter Description
Chapter 2: USB Peripheral Interoperability Test Steps Section 2.1: Peripheral Interoperability Tests
Section 2.2: Peripheral Current Measurement
Section 2.3: Peripheral U1/U2 Test Steps
Section 2.4: Peripheral L1 (USB2 compliance) Test Steps
Chapter 7: All Devices – Interoperability Test Steps Repeats at:
– All Devices Tests
– All Devices Tests (After topology change 1)
– All Devices Tests (After topology change 2)
– Root Port Testing

 

2.3 Conclusion

The Intel® RealSense™ Cameras outlined in this document has gone through the extensive tests outlined in the interoperability test procedures and performed by in-house validation teams, which can be found at usb.org. With the equipment list provided here, the peripheral cameras have passed all tests.


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