Usb design by example pdf

Usb hardware design guide an0046 application note this application note gives recommendations on hardware design for implementing usb host and device applications using usb capable efm32 microcontrollers. This design example will take a target value of 150 ns, geometrically half way between the minimum and maximum values. Design considerations in adding usb communications to. Embedded usb design by example by john hyde ftdi chip. It should be considered a supplement to his usb design by example in the same way that the otg supplement complements the usb 2.

Pdf an1886 application note low speed usb design using. Work through a series of examples designed to teach you how to design a realworld usb 3. The value of c1 is limited by the capacitors available in. It guides design engineers through the steps on how to add usb connectivity to their system design and identifies techniques to overcome the various practical challenges they face in both hardware and software. This document serves as the consultation paper that integrates the minds of the client and the designer or creative team to come up with an agreed initial plan to achieve the desired outcome. Application note an2298 psocbased usb device design by example author. There is a fourth option, superspeed at 5gbs, currently being developed by the usb implementers forum usb if. A usb capable efm32 microcontroller can operate as a host, a device or as an otg dual role device. Though not everything a hardware developer could wish for, john hydes explanations represent a valuable supplement to the notably obtuse specification documents. Embedded usb design by example, at our behest for those of us who would like to incorporate usb interfacing into their product designs whilst focussing on overall product development concepts rather than having to learn the intricacies of usb hardware and driver development.

The simplest example that i could think of was a usb keyboard. I have helped a wide range of clients design and debug an even wider range of innovative usb products. A practical guide to building io devices 2nd edition john hyde on. Usb multirole device design by example john hyde foreword by brian booker we were pleased to get john hyde to write this book on cypress semiconductors behalf. Superspeed device design by example, by john hyde, is the latest in a series of howto usb books. I have been involved with usb since its inception and continue to be impressed with everything that can be done with just a few wires. Design examples cover most usb classeshid, communications, audio, mass storage, and huband provide insights into highspeed usb 2. Embedded usb design by example provides a practical usb engineering guide based on ftdis product portfolio. This guide takes a practical approach to designing and implementing superspeed usb peripherals. Organized around a series of fully documented, realworld examples, this book is structured to serve as both a stepbystep guide for creating specific devices and a complete reference to usb.

Usb design by example explains what usb means to hardware developers, taking an approach that combines academic elucidation of the official specification with some experimental setups. A typical example for this would be a smartphone or a tablet that can both connect to a computer as a usb mass storage device, or act as a host if a memory card reader or a usb memory stick is connected. Usb design by example book pdf best of all, they are entirely free to find, use and download, so there is no cost or stress at all. Information is transferred using asynchronous packets and these are combined with base protocols to implement four types of data transaction. The book supports ftdis philosophy of usb made easy. Design examples cover most usb classeshid, communications, audio, massstorage, and huband provide insights into highspeed usb 2. Embedded usb design by exampleprovides a practical usb engineering guide based on ftdis product portfolio. Usb was designed from the ground up to be an interface for communicating with many types of peripherals without the limits and frustrations of older interfaces. I wrote my first usb book, usb design by example, while working at intel corporation.