AN1325 Datasheet, PDF (1/15 Pages) STMicroelectronics – This application note describes

AN1325
APPLICATION NOTE
USING THE ST7 USB LOW-SPEED LIBRARY V4.2x
by Microcontroller Division Applications
This application note describes how to use the ST7 USB Low-Speed Library V4.2x. Starting
from version 4.20 the Library supports the DFU class layer.
Caution: The DFU class and the HID class layers are not included in the Library. The Library
contains only the standard USB request layers. You will find the DFU and HID layers in the
ST7 USB Low-Speed DFU EvalKit firmware.
Note: In this document the names “Hiware” and “MetroWerks” refer to the same compiler
manufacturer.
1 OVERVIEW
The ST7 USB Low-Speed Firmware Library is written in C language and is compatible with
both Cosmic and Metrowerks compilers.
This Library provides a complete USB protocol layer for the ST7 USB Low-Speed microcon-
trollers (such as the ST7261, ST7262, ST7263 and ST7263B). The source code is available
free to STMicroelectronics customers.
This Library is supplied in a ZIP file. Starting from version 4.10, the Library contains only the
files that are common for all the projects. This new architecture has been choosen in order to
better separate what is really the Library and what is related to a project. This architecture will
also facilitate the upgrade of different projects with new Library versions in the future.
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