HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comment
gyannea
User Rank
Iron
Re: Nov 28 - Day 3: Understanding the USB Protocol
gyannea   11/28/2012 2:42:36 PM
NO RATINGS
JVonHatten; I do not think so. USB data packets are sent in fixed sizes, say 64 bytes

How do you know when the end of the application packet is received? This is what I understand but have no confirmation. If you get a packet that is less than 64 bytes, end of sequence. If it is 64 bytes, there is more to come. If the application packet is 64*N where N is an integer, one will receive a 0-byte packet.

This is true for Control packets. How about the data transfers?

 



Partner Zone
Latest Analysis
Here's a look at the Bureau of Labor stats on engineering jobs over the coming decade.
Using ultra-wideband wireless, any item can be located to a level of pinpoint precision that’s never before been possible.
Coatings and sealants are getting more versatile to deal with miniaturization and multiple materials, and tougher to meet requirements for higher reliability.
DMDII is working with a number of partners to create and utilize augmented reality instructions for the plant floor.
Visualization and virtual reality tools allow design engineers to build virtual prototypes that can be manipulated collaboratively. You can swap out materials and store data within the file.
More:Blogs|News
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7 | 8 | 9


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Technology Marketplace

Copyright © 2016 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service