Embedded USB Device Stack - Renesas Controllers

Device Classes Supported Controllers Demos Documentation Prices

Low-Cost H8S 16-bit Microcontrollers with Zero Wait-State Flash,
USB and TFT Drive
H8S/245x, H8S/242x

Embedded USB Device Stack Thesycon’s USB device software stack implements the core functionality of a USB device and optionally provides device class specific protocols. It enables developers to easily add USB device functionality to embedded systems incorporating Renesas microcontrollers.
The software stack complies with the USB v1.1 and USB v2.0 specifications. It supports the transfer modes control, bulk and interrupt at low and full speed. Complete USB request processing and extended error recovery mechanisms that are required for reliable operation are implemented internally.

The modular design allows to implement proprietary USB interfaces and standard device classes. The creation of composite devices which implement multiple logical functions on one physical controller as well as multi-configuration devices are fully supported.

To use the USB Function API directly without a device class, basic USB knowledge is required. The device class specific APIs provide a high abstraction level and are easy to use. No USB know-how is required.

Thesycon also offers the appropriate device drivers for PC and so is able to provide complete software solutions.

Device Classes

CDC/ACM Device Class

The CDC/ACM protocol module implements a standard-compliant serial link (RS-232) emulation on top of USB. This provides an easy migration path for existing applications. Thesycon also offers an appropriate CDC/ACM class driver for Windows operating systems. The combination of the CDC/ACM device class and the CDC/ACM class driver for Windows allows to re-use existing Windows applications unmodified.

RNDIS Device Class

The RNDIS module implements an Ethernet emulation on top of USB. This approach is especially useful if an embedded system contains an Ethernet interface and a TCP/IP protocol implementation. A suitable RNDIS device driver is included in Windows and some other operating systems.

Mass Storage Device Class

The Mass Storage protocol module emulates a disc drive with FAT or CD-ROM file system. It can be used to create a CD-less PC software installation, or to exchange static data files between the device and the PC. The required PC drivers are part of Windows, MacOS, and Linux. Under Windows the CD-ROM emulation supports the auto-run feature.

supports multiple Logical Units (LUNs)
supports direct access devices (hard disk) and CD ROM emulation
media state can be changed during runtime
CD-ROM emulation supports the auto-run feature of Windows
ISO image of a CD-ROM emulation can be compressed
compliant to the MSD specification and passes the Command Verifier Tool in the class MSD
implementation is compliant to Windows, Linux and MAC OS

HID Device Class

The THID module implements a generic HID device (Human Interface Device). The device does not require a device driver installation under Windows. It uses the in-box HID class driver. Applications can communicate with the THID device by means of Windows HID API functions. Thesycon provides sample application source code.

Platform Integration

The Embedded USB Device Stack firmware is implemented in ANSI-C and supports the Renesas HEW development environment. For easy integration the software is designed as a library and provided as source code. The library does not depend on any specific operating system support. It can be integrated into any embedded OS, or can be used in stand-alone applications.

Embedded USB Device Stack - H8SX

Free Demo Download

The demo package includes:

A downloadable firmware image for each demo application.
The complete source code of each demo application.
The required device drivers for use with a Windows PC.
The manuals for the USB Function Library and device classes.

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.

Renesas H8S Demo Starter Kit

H8SX/1663 Group
H8SX1664, H8SX1663 usbf_rskh8sx1664_demo.exe Renesas
RSK H8SX/1664

H8SX/1653 Group
H8SX1654, H8SX1653 usbf_rskh8sx1664_demo.exe Renesas
RSK H8SX/1664

H8SX/1668R Group
H8SX1668, H8S1658 usbf_rskh8sx1668_demo.exe Renesas
RSK H8SX/1668R

H8S/2472 Group
H8S2472 usbf_rskh8s2472_demo.exe Renesas
RSK H8S2472

H8S/2215 Group
H8S2215 usbf_rskh8s2215_demo.exe Renesas
RSK H8S2215R

H8S/2456 Group
H8S2424, H8S2426,
H8S2454, H8S2456,
H8S2425*, H8S2427*
*under development under development RSK H8S/2456
TFT-LCD Development Kit

Renesas M16C/6C Demo Evaluation Board

M16C/6C Group
M16C6C usbf_rskm16c6c_demo.exe Renesas
RSK M16C6C

M16C/6C Group
M16C6C usbf_evbm16c6c_demo.exe Glyn
EVBM16C6C

M16C/6C Group
M16C6C usbf_modsdk-cm16c6c_demo.exe MSC
ModSDK-CM16C6C

Demo Applications

USBF Bulk Loop Demo

The Bulk Loop Demo application is implemented on top of the USB FunctionLibrary. It represents a plain sample for the usage of the USB Function Library without a device class.

Thesycon’s USBIO device driver for Windows can be used with the BULK Loop Demo and therefore is included in the demo package. Additionally, there are two sample applications for the PC enclosed which can be used to communicate with the device.

CDC/ACM Loop Demo

The CDC/ACM Loop Demo application is implemented on top of the CDC/ACM device class. It represents a plain sample for the usage of the CDC/ACM device class.

Thesycon’s CDC/ACM class driver for Windows can be used with the CDC/ACM Loop Demo and therefore is included in the demo package. The driver creates a virtual COM port. So standard terminal programs, such as HyperTerminal can be used to communicate with the embedded device.

CDC/ACM Multi Instance Loop Demo

The CDC/ACM Multi Instance Loop Demo application is implemented on top of the CDC/ACM device class. It represents a plain sample for the usage of the CDC/ACM device class with multiple instances (so called composite device).

A customized version of Thesycon’s CDC/ACM class driver for Windows which supports multiple instances can be used with the CDC/ACM Multi Instance Loop Demo and therefore is included in the demo package. The driver creates two virtual COM ports for the two CDC/ACM device class instances. So standard terminal programs, such as HyperTerminal can be used to communicate with the embedded device. The data received on one instance will be looped in the embedded device and sent back to the other instance (COM port).

RNDIS Simple IP Demo

The RNDIS Simple IP Demo application is implemented on top of the RNDIS device class. The application provides very basic IP protocol functionality to support ARP, ICMP and DHCP. So it is possible to attach the device to a PC and to test the USB connection by means of ping.

For more information about a specific demo application refer to the section "Demo Applications" in the appropriate manual.

Evaluation Version

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

Documentation

Embedded USB Device Stack Product Sheet

Embedded USB Device Stack Manual

CDC/ACM Device Class Manual

RNDIS Device Class Manual

Mass Storage Device Class Manual

HID Device Class Manual

Licensing conditions & Prices

Single product and product family licenses are available. An Embedded USB Device 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 .

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