AVR Stick AR
Quick Guide
USB-AVR-Microcontroller
Atmel ATMEGA32U2 and AT90USB162
a USB Stick
with Auto Reset feature
1. Introduction
The microcontroller contains the original Atmel bootloader. The stick can be programmed via USB interface with the
PC program „FLIP from Atmel. „FLIP can be downloaded from the Atmel homepage (www.atmel.com). Search for
„FLIP or try the following link:
http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3886
Install „FLIP before you plug the AVR Stick! The FLIP installation package contains the USB driver „LibUSB-
Win32 , which is required for communication with the bootloader of the AVR Stick.
2. Installation
At plugging of the AVR Stick, an Atmel device („ATMEGA32U2 DFU or „AT90USB162 DFU ) will be detected.
Chose the „LibUSB-Win32 driver, which is available through the „FLIP installation.
3. rogramming
Set the jumper and plug the stick, to program a firmware into the controller. The bootloader, contained in the controller,
will be executed. Run FLIP”, chose the correct device (ATMEGA32U2 or AT90USB162) and open the device. Load
your hex file and flash it ( Run” button). Push the Start Application” button, to close the USB connection to the stick.
Unplug the stick and remove the jumper.
If you are plugging the stick without jumper, your programmed firmware will run.
To update a new firmware, simply unplug the stick, set the jumper and plug again. Now, the bootloader is running again
and is waiting for data from FLIP”.
The bootloader will always start, if no firmware is loaded. You can check, which mode is active, if you use the tool
USBView” (download from AVR Stick Homepage).
You will find a detailed description under: http://products.reworld.eu/avrstick.htm
© 2010 Reu ch Elektronik
http://product .reworld.eu/
File:
Revi ion:
Created:
Changed:
AVR_Stick_AR__Quick_Manual
5
2010-12-01
2010-12-01