USB help: Whitepapers help engineers incorporate USB into embedded systems

To help overcome the lack of information available concerning the use of USB in embedded systems, Micro Digital has recently released four white papers. Written by Yingbo Hu, R&D embedded software engineer, the whitepapers are free.

01/15/2009


Costa Mesa, CA — To help overcome the lack of information available concerning the use of USB in embedded systems, Micro Digital has recently released four white papers. Written by Yingbo Hu, R&D embedded software engineer, the whitepapers are freely available on the company's Website , as an embedded community service.
Ways to Use USB in Embedded Systems has clear diagrams and brief descriptions of 11 ways to use USB (universal serial bus) in embedded systems. It states, "USB usage in embedded systems so far has been largely centered on dealing with the loss of serial and parallel ports on PCs and laptops, the loss of parallel interface printers, and with capitalizing on the low cost and convenience of USB thumb drives for transporting information. However, USB offers many other capabilities that are available to solve other problems in the embedded space. We expect to see these uses grow in the future." How to Select a USB Host Controller is aimed at developers with no USB experience. Choosing the best USB controller for their product can be a daunting task. Based upon his experience in writing a large number of USB controller drivers, Mr. Hu provides some insight into the process.
Real Embedded USB Host Performance helps engineers decide whether USB is the right choice to meet their performance objectives, select proper hardware, and implement the design. The experience of many developers with USB is limited to its use with 3 GHz PCs. Hence, it is natural for them to assume that there is no problem achieving near wire-speed in their embedded applications. However, typical 32-bit embedded processors run about 50 times slower than modern PCs and smaller processors are even slower. All of the factors affecting USB performance in embedded systems are discussed in this white paper.
When to Use USB OTG discusses when it is appropriate to use USB OTG (On The Go) in embedded systems. Most people think that if there is a need to control USB peripherals and to connect to PCs or laptops, then they need OTG. This is not the case.
Also read:

USB helps connect the enterprise

.
— Edited by C.G. Masi ,
Control Engineering News Desk
Register here and scroll down to select your choice of eNewsletters free.





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
Each year, a panel of Control Engineering editors and industry expert judges select the System Integrator of the Year Award winners.
Control Engineering Leaders Under 40 identifies and gives recognition to young engineers who...
Learn more about methods used to ensure that the integration between the safety system and the process control...
Adding industrial toughness and reliability to Ethernet eGuide
Technological advances like multiple-in-multiple-out (MIMO) transmitting and receiving
Virtualization advice: 4 ways splitting servers can help manufacturing; Efficient motion controls; Fill the brain drain; Learn from the HART Plant of the Year
Two sides to process safety: Combining human and technical factors in your program; Preparing HMI graphics for migrations; Mechatronics and safety; Engineers' Choice Awards
Detecting security breaches: Forensic invenstigations depend on knowing your networks inside and out; Wireless workers; Opening robotic control; Product exclusive: Robust encoders
The Ask Control Engineering blog covers all aspects of automation, including motors, drives, sensors, motion control, machine control, and embedded systems.
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
News and comments from Control Engineering process industries editor, Peter Welander.
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
This is a blog from the trenches – written by engineers who are implementing and upgrading control systems every day across every industry.
Anthony Baker is a fictitious aggregation of experts from Callisto Integration, providing manufacturing consulting and systems integration.
Integrator Guide

Integrator Guide

Search the online Automation Integrator Guide
 

Create New Listing

Visit the System Integrators page to view past winners of Control Engineering's System Integrator of the Year Award and learn how to enter the competition. You will also find more information on system integrators and Control System Integrators Association.

Case Study Database

Case Study Database

Get more exposure for your case study by uploading it to the Control Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.

These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.

Click here to visit the Case Study Database and upload your case study.