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
On Memorial Day, Americans remember the sacrifices the US armed forces have made, and continue to make, in service to the country. All of us should also consider the developments in technological capabilities and equipment over the years that contribute to the success of our military operations.
Imagine if you could train it from San Francisco to New York faster than flying?
In order to keep in line with safety protocols, industrial networks need to be filtered in a semantic way so that only information related to diagnostics is flowing back to the vendor and that any communications that could be used for remote machine operations are suppressed.
Siemens PLM has launched an online store to help customers search for, compare, and purchase partner-developed apps for its Solid Edge software.
Advanced visualization can depict an entire plant in motion, while also detailing an individual workstation. Individual products can be rendered different for each discipline involved — marketing, engineering, or suppliers.
More:Blogs|News
Design News Webinar Series
5/21/2015 11:00 a.m. California / 2:00 p.m. New York
5/7/2015 11:00 a.m. California / 2:00 p.m. New York
3/31/2015 11:00 a.m. California / 2:00 p.m. New York
6/11/2015 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jun 8 - 12, Everything You Ever Wanted to Know about Filters
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7


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.
Next Course June 2nd-4th:
Sponsored by Proto Labs
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service