Embedded USB Host Stack

Class Drivers Supported Controllers Demos Documentation Prices

Embedded USB Host Stack Thesycon’s USB host software stack implements full USB host functionality, including external hub support, and optionally provides device class drivers. It enables developers to easily add USB host functionality to embedded systems.

The software stack complies with the USB v1.1 and USB v2.0 specifications. It supports all transfer modes (control, bulk, interrupt, isochronous) at low, full and high speed. USB pipe management and extended error recovery mechanisms that are required for reliable operation are implemented internally.

The modular design enables applications to access the USB host programming interface directly, or to use APIs exposed by class drivers. At its upper edge a class driver typically attaches to an operating system module such as a file system.

The stack can handle multiple devices and hubs simultaneously and fully supports hot plugging of devices and hubs. The programming interface supports dynamic device enumeration and identification.

Class Drivers

The HID (Human Interface Devices) class driver handles common input devices such as keyboards and mice.

The Mass Storage class driver controls external flash memory devices (USB memory sticks) and hard disk drives. It needs to be combined with a file system module which typically implements FAT file system support.

The Printer class driver provides a transport layer that allows to send data to a USB printer. In most cases it will be combined with a printer driver which formats the data to be printed.

In the future, Thesycon will provide further class drivers.

Platform Integration

The USB host stack firmware is written in ANSI-C and can be ported to any hardware platform. For easy integration the software is designed as a library and provided as source code. The library requires a few system services which are encapsulated by an abstraction layer. This layer needs to be implemented in a platform-specific way. This way the stack can be integrated into any embedded OS, or can be used in stand-alone applications. The host stack supports 32-bit and 16-bit CPUs and works in either endian mode.

Free Demo Download

The demo package includes:

A downloadable firmware image for each demo application.
The complete source code of each demo application.
The manuals for the USB Host Stack and class drivers.

Note: The source code and the appropriate project files contained in the demo package are for documentation only. It is not possible to recompile the applications. For this purpose there is an Evaluation Version available.

Atmel ARM9 core Status Demo Evaluation Board

AT91SAM9260, AT91RM9200, AT91SAM9261, AT91SAM9261S available usbh_at91sam9260ek_demo.exe Atmel AT91SAM9260-EK

AT91SAM9263 available usbh_at91sam9263ek_demo.exe Atmel AT91SAM9263-EK

AT91SAM9XE128, AT91SAM9XE256, AT91SAM9XE512, AT91SAM9G10, AT91SAM9G20, AT91SAM9G45 on request

NXP ARM Cortex-M3 core Status Demo Evaluation Board

LPC1768, LPC1766, LPC1765, LPC1758, LPC1756, LPC1754 available usbh_mcb1760_demo.exe Keil MCB1760

NXP ARM 9 core Status Demo Evaluation Board

LPC3180 on request

NXP ARM 7 core Status Demo Evaluation Board

LPC2388, LPC2387 available usbh_mcb2300_v3_demo.exe

usbh_chameleonarm_demo.exe Keil MCB2388

EBV ChameleonARM

LPC2458, LPC2460, LPC2468, LPC2470, LPC2478 available usbh_lpc2468_embart_demo.exe Keil MCB2460 and
Embedded Artists LPC2468 OEM Board

Fujitsu Status Demo Evaluation Board

F2MC-16LX MB90335 series
MB90F337
F2MC-16FX MB96330 series
MB96F338
FR80 MB91660 series
MB91V650 available Download Fujitsu Demos

FreeScale Status Demo Evaluation Board

ColdFire MCF5329 on request LOGIC M5329EVBE

Other device controller drivers can be created on request. Please contact for more information.

Demo Applications

HID Demo

The HID Demo application is implemented on top of the USB Bus Driver. It represents a plain sample for the usage of the USB Bus Driver API. No additional USB class driver is used. The HID Demo Application supports the mouse and keyboard protocol of the HID class and displays the communication data of connected devices. So the user can reproduce the movement of the mouse or a keystroke on the keyboard.

Thesycon Test Application

The Thesycon Test Application is implemented on top of the USB Bus Driver. It represents a plain sample for the usage of the USB Bus Driver API. No additional USB class driver is used. The Thesycon Test Application is designed to test the data transfer (control, bulk, and interrupt) between the host and a device. This demo application requires a USB device which supports a special test protocol. There is a demo application for Thesycon’s Embedded USB Device Stack available which supports this test protocol. Therefore it is possible to use the supported device controller of the Embedded USB Device Stack as test devices for the Embedded USB Host Stack.

Mass Storage Demo

The Mass Storage Demo application is implemented on top of Thesycon’s mass storage class driver. It represents a plain sample for the usage of the mass storage class driver API. The demo application uses the file system emFile from Segger. If a USB mass storage device is connected a file is written to the device and verified. Afterwards the achieved data rate is displayed.

Evaluation Version

On request Thesycon provides an evaluation version of the Embedded USB Host Stack. Please contact for more information.

Documentation

Embedded USB Host Stack Product Sheet

Embedded USB Host Stack Manual

USB Mass Storage Device Class Reference Manual

Licensing conditions & Prices

Single product and product family licenses are available. An Embedded USB Host Stack license includes the full source code and allows royalty-free distribution of binaries compiled from the sources. Distribution of source code is not permitted. For complete license conditions and prices please contact .

USB Vendor and Product ID

When designing a USB device you need an official USB vendor ID (VID) which is unique world-wide. Vendor ID's will be assigned by the USB Implementers Forum (www.usb.org). There is a fee of $1500 US.

Thesycon owns a USB vendor ID and provides a subset of product ID's (PID) to customers who licensed our USB software.

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