AVR32917: picoPower borad Documentation

Atmel AVR Application Notes

Introduction

This documents the firmware for a power consumption and sleep example code.

Note that to get the lowest power consumption it is recommended to:

• Disable the JTAG interface. (Enabled from factory.)
• Disable the Watchdog. (Disabled from factory.)
• Disable the Brown Out Detection (BOD) circuit. (Disabled from factory.)

These settings are all controlled with the fuses.
The JTAG interface can also be disabled from software, which is done in the code examples.
Further, it is important to disable all unused peripherals/modules and define the state of all I/O pins (don't leave them floating).

Note:

When the JTAG interface is disabled, the PDI interface can still be used for programming and debugging.

Compilation Info

This firmware was compiled with AVR Studio WinAVR 20090313.

Device Info

All XMEGA devices with JTAG interface. The example is written for ATxmega32A4.

Contact Info

For more info about Atmel AVR visit http://www.atmel.com/products/AVR/
For application notes visit http://www.atmel.com/dyn/products/app_notes.asp?family_id=607
Support mail: avr@atmel.com

Copyright (c) 2009 Atmel Corporation. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

3. The name of Atmel may not be used to endorse or promote products derived from this software without specific prior written permission.

4. This software may only be redistributed and used in connection with an Atmel AVR product.

THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE