AVR-CDC-Download.pdf

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Virtual COM Port over Low-Speed USB

AVR-CDC

Home About CDC-232 CDC-IO CDC-SPI Driver Download FAQ Reference

About

DOWNLOADS

CDC-232

Usage

"Objective Development Software GmbH" allows using their USB VID/PID under certain condition, including commercial

purpose. AVR-CDC's firmware is opened with GPL2 license. Please be careful to follow both the V-USB and the AVR-CDC's

Schematics

license agreements.

CDC-IO

Usage

Driver

This is an INF file and the patch driver for Windows 2000/XP/Vista/7. The instruction and the source code is included.

No driver installation is required on Mac OS, Linux 2.4, and Linux 2.6.31-.

Schematics

Sample Program

avrcdc_inf.zip (40 KB, 2010-03-21 updated)

CDC-SPI

Usage

These are the performance evaluation of AVR-CDC. (2006-08-28)

Schematics

Summary (PDF 9KB), CDC-mega (PDF 18KB), CDC-tiny (PDF 15KB)

Sample Program

CDC-232

Driver

CDC Protocol

Source code and HEX files.

Windows

Mac OS

cdc232.2010-02-28.zip (294 KB)

cdc232.2010-02-28.tgz (235 KB)

Linux

CDC-IO

FAQ

Device Recognition

Source code and HEX files.

Communication Problem

Others

cdcio.2009-07-15.zip (316 KB)

cdcio.2009-07-15.tgz (259 KB)

Download

These are the sample programs (C, C++, C#, VB) for CDC-IO ATmega8/48/88 version.

iosample.2009-07-15.zip (341 KB)

Reference

iosample.2009-07-15.tgz (298 KB)

CDC-SPI

Source code and HEX files.

cdcspi.2010-02-06.zip (349 KB)

cdcspi.2010-02-06.tgz (292 KB)

These are the sample programs (spitest, spiprog) for CDC-SPI.

spisample.2010-02-08.zip (81 KB)

spisample.2010-02-08.tgz (79 KB)

LibUSB-Win32

LibUSB is an open-source project of the general purpose USB interface driver. You can control AVR-CDC device directly without

loading "usbser.sys". This is the patch to enable low-speed bulk transfer on Vista. This may be useful for all "low-speed bulk"

devices. Download the original LibUSB and add this portion. Rebuild the "libusb0.sys" with this replacement. "bulk.c" is a

CDC-IO sample to transfer data.

libusb-win32-lowbulk-0.1.12.zip

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