网站首页
投注威廉希尔彩票吗?
电子产品世界 » 论坛首页 » 综合技术 » 测试测量 » 力科USB软件包

共2条 1/1 1 跳转至页

力科USB软件包

shangziyun
专家
2012-04-14 23:17:52     打赏
USB软件包提供了完整的USB2.0信号采集和分析系统，能够完成USB-IF USB 2.O电气测试规范所要求的主机、设备和集线器测试。通过QualiPHY自动化测试和报告软件的支持，能够实现USB2.0的全套电气测试，包括高速，全速和低速测试。 


QPHY-USB

 

The USB package provides a complete acquisition and analysis system for USB 2.0 devices, hosts, and hubs, as specified in the USB-IF USB 2.0 Electrical Test Specification. The test software implements a full set of electrical tests for USB 2.0, including High-, Full-, and Low-speed tests and is supported by LeCroy’s QualiPHY automated test and reporting software.


Key Features
  • Compliant with all real-time oscilloscope tests specified by the USB-IF procedures
  • Support for host, device, and hub testing
  • Simple and easy-to-use automated testing
  • SMA cables used for high-speed upstream signal quality
  • Supports 12 Loads for new higher port hubs
  • 2 boards for ease of connection
  • No dangling cables
  • Support for High-speed, Full-speed, and Low-speed testing included
  • QualiPHY report generation— incorporates all oscilloscope and DVM tests

The USB package provides a complete acquisition and analysis system for USB 2.0 devices, hosts, and hubs, as specified in the USB-IF USB 2.0 Electrical Test Specification. The test software implements a full set of electrical tests for USB 2.0, including High-, Full-, and Low-speed tests and is supported by LeCroy’s QualiPHY automated test and reporting software.

QualiPHY’s connection diagrams provide a visual representation of probe and cable connections making it easy to ensure that the correct connections are made the first time.

The user is prompted when to change the test conditions and as how to interpret the test results. Each measurement is indicated by its designation within the specification, and the allowed values for each parameter are shown, as well as a pass/fail indication.

LeCroy’s TF-USB-B fixture provides sections for Signal Quality (Device & Host), Receiver Sensitivity, TDR (Device & Host), Disconnect, Inrush, Droop and 12 Loads to accommodate new higher port hubs. High-speed, Full-speed, and Low-speed tests are all supported.

QPHY-USB is supported by 2 GHz or higher bandwidth oscilloscopes: WaveRunner?, WavePro?, WaveMaster?, SDA, or DDA.

Compliance Testing for High-, Full-, and Low-speed Devices, Hosts, and Hubs

 

High-speed upstream signal quality test result.

 

Eye diagram created using the integrated USB-IF MATLAB? Test scripts.

In addition to QualiPHY, the QPHY-USB option also has easy to use step-by-step instructions embedded in the menu system of the application. These simple, step-bystep, instructions lead the user through the selected test. The user is directed as to the proper connection of probes as well as how to properly use the USB-IF High-speed Electrical Tool. Results, indicating pass or fail, are displayed on the screen. This enables the solution to help with both compliance testing and debug. All Highspeed, Full-speed and Low-speed compliance tests are supported in debug mode for Devices, Hosts and Hubs.

 

High-speed chirp timing test.

 

High-speed packet parameter test.

QualiPHY USB

QualiPHY has many preset compliance configurations but also enables users to create their own test and limit sets.

Connection diagram for high-speed signal quality.

QualiPHY has many predefined configurations that allow users to run complete compliance test. (All High-speed Device Tests, All Full-speed Hub Tests, etc.) In addition, users can create their own custom test groups and limit sets. When the tests are complete, QualiPHY will generate a full test report in PDF, HTML, or XML formats (including eye diagrams and other screenshots).

Host Tests
  • HS signal quality
  • HS packet parameters
  • HS chirp timing
  • HS suspend/resume/reset
  • HS disconnect
  • FS downstream signal quality
  • LS downstream signal quality
Device Tests
  • HS signal quality
    • HS far-end for tethered devices
    • HS near-end for untethered devices
  • HS packet parameters
  • HS chirp timing
  • HS suspend/resume/reset
  • HS receiver sensitivity
  • FS upstream signal quality
  • LS upstream signal quality
  • Inrush current
Hub Tests
  • HS signal quality (upstream/downstream)
    • HS far-end for tethered hubs
    • HS near-end for untethered hubs
  • HS packet parameters
  • HS chirp timing
  • HS suspend/resume/reset
  • HS receiver sensitivity
  • HS downstream repeater
  • HS upstream repeater
  • FS signal quality (upstream/downstream)
  • LS signal quality (upstream/downstream)
  • Inrush current

TF-USB-B: Signal integrity board and load board are separate to ease connections.

TF-USB-B

TF-USB-B is required to test High-, Full-, and Low-speed Devices, Hosts, and Hubs. The accessories include two matched SMA cables, two SMA-BNC adapters, two SMA terminators, USB-A Male to Mini-B Male adapter, USB-A Female to B Female adapter, USB-A Male to Micro AB Female adapter, and ten 6" USB-A to USB-B cables. TF-USB-B contains 12 Loads for new higher port hubs. These Loads are on a separate board to allow for easy connections.

回复
收藏
0



关键词： 力科     软件包     signal     quality    

shangziyun
专家
2012-04-14 23:19:00     打赏
2楼
ProtoSync

 

The ProtoSync option further leverages the supported LeCroy decode annotation options (PCIEbus D, USB2bus D, USB3bus D, SASbus D, SATAbus D, and Fcbus D) installed on the oscilloscope.


ProtoSync is an option for LeCroy oscilloscopes that provides simultaneous views as follows:

  1. Physical layer waveforms (captured by a LeCroy oscilloscope)
  2. Decode annotation overlays (displayed on a LeCroy oscilloscope)
  3. Protocol analysis views (displayed in a separate software window)

The ProtoSync option further leverages the supported LeCroy decode annotation options (PCIEbus D, USB2bus D, USB3bus D, SASbus D, SATAbus D, and Fcbus D) installed on the oscilloscope. It provides the ability to export the physical layer waveform data to a separate LeCroy protocol analysis software package (the same package that provides protocol analysis views when used with a LeCroy hardware protocol analyzer), and it synchronizes the data displays between the oscilloscope and protocol analysis software package. Selecting a specific portion of the decode annotated physical layer waveform on the oscilloscope will automatically select the corresponding protocol analysis software packet display, or vice-a-versa. Thus, debug and analysis using a variety of views is very easy.

ProtoSync is especially useful for standards that support dynamic equalization (PCI Express Gen3, and forthcoming versions of SAS). Dynamic equalization is a link initialization process where training sequences communicate transmitter and receiver parameters to establish a link. In the pre-silicon stage of development, protocol analyzer hardware may not yet be available or physical layer problems may be so prevalent that a protocol analyzer may not be able to provide the desired analysis. Yet debugging dynamic equalization is usually much easier if both analog waveforms and high level protocol packet data are available and are synchronized together so as to navigate to hard-to-find details of dynamic equalization.

In addition, more mature standards (PCI Express Gen1, SATA 1.5 Gb/s, etc.) are increasingly becoming embedded in system designs. Embedded systems usually present complex attachment or probing challenges that make it difficult to conveniently connect a protocol analyzer, or the embedded system engineer may not be familiar with the protocol analyzer tool. However, the challenges around connecting an oscilloscope to the embedded system are usually already known and resolved, and the debug and validation system engineer is quite familiar with the operation of an oscilloscope. By providing the ability to view advanced protocol packet data using physical layer oscilloscope captures as a source, complex problems can be more easily debugged.

ProtoSync runs on LeCroy WaveRunner, WavePro, and WaveMaster platforms.


评论
共2条 1/1 1 跳转至页

回复

匿名不能发帖！请先 [ 登陆 注册 ]