Ellisys Download | Purchase | Contact | About | Jobs      
Protocol Analyzers
USB Explorer 200 (USB 2.0)
  Comparison Chart
  Features Tour
Quick Links
  Software Download
  Getting Started Guide
  User Manual
Related Products
  Type-C Tracker (Type-C + PD)
  USB Explorer 260 (USB 2.0)
  USB Explorer 350 (10G + PD)
  USB Explorer 280 (5G)

USB Explorer 200 - Feature Tour

[ First | Prev | Next | Last ]

Feature 4 of 14

Grouping consecutive SOFs and NAKs

Consecutive Start Of Frames are grouped to prevent an overload of the display

This example shows the end of the enumeration of an HID peripheral and the start of an interrupt flow on endpoint 1 at an interval of 10 milliseconds (rounded down to 8 milliseconds by the operating system)

Like SOFs, consecutive NAK transactions of the same type are grouped

This illustration shows the writing of a file to a mass storage peripheral. We can see how each completed transaction is preceded by one or more NAKs wasting the bandwidth.

Next »

 ©  2023  Ellisys. All rights reserved - Terms of Use - Privacy Statement - Write to the webmaster