| /* Copyright (c) 2002, Theodore Roth |
| Copyright (c) 2004,2005,2006,2007 Joerg Wunsch |
| All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions are met: |
| |
| * Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| * 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. |
| * Neither the name of the copyright holders nor the names of |
| contributors may be used to endorse or promote products derived |
| from this software without specific prior written permission. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 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. */ |
| |
| /* $Id: main_page.dox 2211 2011-02-14 14:04:25Z aboyapati $ */ |
| |
| /** \mainpage AVR Libc |
| |
| \section avr_libc_intro Introduction |
| |
| The latest version of this document is always available from |
| http://savannah.nongnu.org/projects/avr-libc/ |
| |
| The AVR Libc package provides a subset of the standard C library for |
| <a href="http://www.atmel.com/products/AVR/">Atmel AVR |
| 8-bit RISC microcontrollers</a>. In addition, the library provides the basic |
| startup code needed by most applications. |
| |
| There is a wealth of information in this document which goes beyond simply |
| describing the interfaces and routines provided by the library. We hope that |
| this document provides enough information to get a new AVR developer up to |
| speed quickly using the freely available development tools: binutils, gcc |
| avr-libc and many others. |
| |
| If you find yourself stuck on a problem which this document doesn't quite |
| address, you may wish to post a message to the avr-gcc mailing list. Most of |
| the developers of the AVR binutils and gcc ports in addition to the devleopers |
| of avr-libc subscribe to the list, so you will usually be able to get your |
| problem resolved. You can subscribe to the list at |
| http://lists.nongnu.org/mailman/listinfo/avr-gcc-list . Before posting to the |
| list, you might want to try reading the \ref FAQ chapter of this document. |
| |
| \note If you think you've found a bug, or have a suggestion for an |
| improvement, either in this documentation or in the library itself, |
| please use the bug tracker at |
| https://savannah.nongnu.org/bugs/?group=avr-libc to ensure the issue |
| won't be forgotten. |
| |
| \section avr_libc_general General information about this library |
| |
| In general, it has been the goal to stick as best as possible to |
| established standards while implementing this library. Commonly, this |
| refers to the C library as described by the ANSI X3.159-1989 and |
| ISO/IEC 9899:1990 ("ANSI-C") standard, as well as parts of their |
| successor ISO/IEC 9899:1999 ("C99"). Some additions have been |
| inspired by other standards like IEEE Std 1003.1-1988 ("POSIX.1"), |
| while other extensions are purely AVR-specific (like the entire |
| program-space string interface). |
| |
| Unless otherwise noted, functions of this library are <em>not</em> |
| guaranteed to be reentrant. In particular, any functions that store |
| local state are known to be non-reentrant, as well as functions that |
| manipulate IO registers like the EEPROM access routines. If these |
| functions are used within both standard and interrupt contexts |
| undefined behaviour will result. |
| See the FAQ for a more detailed discussion. |
| |
| |
| \section supp_devices Supported Devices |
| |
| \addindex supported devices |
| |
| The following is a list of AVR devices currently supported by the library. |
| Note that actual support for some newer devices depends on the ability |
| of the compiler/assembler to support these devices at library |
| compile-time. |
| |
| \par megaAVR Devices: |
| |
| - atmega103 |
| - atmega128 |
| - atmega1280 |
| - atmega1281 |
| - atmega1284p |
| - atmega16 |
| - atmega161 |
| - atmega162 |
| - atmega163 |
| - atmega164a |
| - atmega164p |
| - atmega165 |
| - atmega165a |
| - atmega165p |
| - atmega168 |
| - atmega168a |
| - atmega168p |
| - atmega16a |
| - atmega2560 |
| - atmega2561 |
| - atmega32 |
| - atmega323 |
| - atmega324a |
| - atmega324p |
| - atmega324pa |
| - atmega325 |
| - atmega325a |
| - atmega325p |
| - atmega3250 |
| - atmega3250a |
| - atmega3250p |
| - atmega328 |
| - atmega328p |
| - atmega48 |
| - atmega48a |
| - atmega48p |
| - atmega64 |
| - atmega640 |
| - atmega644 |
| - atmega644a |
| - atmega644p |
| - atmega644pa |
| - atmega645 |
| - atmega645a |
| - atmega645p |
| - atmega6450 |
| - atmega6450a |
| - atmega6450p |
| - atmega8 |
| - atmega88 |
| - atmega88a |
| - atmega88p |
| - atmega88pa |
| - atmega8515 |
| - atmega8535 |
| |
| \par tinyAVR Devices: |
| |
| - attiny4 |
| - attiny5 |
| - attiny10 |
| - attiny11 \ref supp_dev_footnote_one "[1]" |
| - attiny12 \ref supp_dev_footnote_one "[1]" |
| - attiny13 |
| - attiny13a |
| - attiny15 \ref supp_dev_footnote_one "[1]" |
| - attiny20 |
| - attiny22 |
| - attiny24 |
| - attiny24a |
| - attiny25 |
| - attiny26 |
| - attiny261 |
| - attiny261a |
| - attiny28 \ref supp_dev_footnote_one "[1]" |
| - attiny2313 |
| - attiny2313a |
| - attiny40 |
| - attiny4313 |
| - attiny43u |
| - attiny44 |
| - attiny44a |
| - attiny45 |
| - attiny461 |
| - attiny461a |
| - attiny48 |
| - attiny84 |
| - attiny84a |
| - attiny85 |
| - attiny861 |
| - attiny861a |
| - attiny87 |
| - attiny88 |
| |
| \par Automotive AVR Devices: |
| |
| - atmega16m1 |
| - atmega32c1 |
| - atmega32m1 |
| - atmega64c1 |
| - atmega64m1 |
| - attiny167 |
| |
| \par CAN AVR Devices: |
| |
| - at90can32 |
| - at90can64 |
| - at90can128 |
| |
| \par LCD AVR Devices: |
| |
| - atmega169 |
| - atmega169a |
| - atmega169p |
| - atmega169pa |
| - atmega329 |
| - atmega329a |
| - atmega329p |
| - atmega329pa |
| - atmega3290 |
| - atmega3290a |
| - atmega3290p |
| - atmega649 |
| - atmega649a |
| - atmega6490 |
| - atmega6490a |
| - atmega6490p |
| - atmega649p |
| |
| \par Lighting AVR Devices: |
| |
| - at90pwm1 |
| - at90pwm2 |
| - at90pwm2b |
| - at90pwm216 |
| - at90pwm3 |
| - at90pwm3b |
| - at90pwm316 |
| - at90pwm81 |
| |
| \par Smart Battery AVR Devices: |
| |
| - atmega8hva |
| - atmega16hva |
| - atmega16hva2 |
| - atmega16hvb |
| - atmega16hvbrevb |
| - atmega32hvb |
| - atmega32hvbrevb |
| - atmega64hve |
| - atmega406 |
| |
| \par USB AVR Devices: |
| |
| - at90usb82 |
| - at90usb162 |
| - at90usb646 |
| - at90usb647 |
| - at90usb1286 |
| - at90usb1287 |
| - atmega8u2 |
| - atmega16u2 |
| - atmega16u4 |
| - atmega32u2 |
| - atmega32u4 |
| - atmega32u6 |
| |
| \par XMEGA Devices: |
| |
| - atxmega16a4 |
| - atxmega16d4 |
| - atxmega32a4 |
| - atxmega32d4 |
| - atxmega64a1 |
| - atxmega64a1u |
| - atxmega64a3 |
| - atxmega64d3 |
| - atxmega128a1 |
| - atxmega128a1u |
| - atxmega128a3 |
| - atxmega128d3 |
| - atxmega192a3 |
| - atxmega192d3 |
| - atxmega256a3 |
| - atxmega256a3b |
| - atxmega256d3 |
| |
| \par Miscellaneous Devices: |
| |
| - at94K \ref supp_dev_footnote_two "[2]" |
| - at76c711 \ref supp_dev_footnote_three "[3]" |
| - at43usb320 |
| - at43usb355 |
| - at86rf401 |
| - at90scr100 |
| - ata6289 |
| - m3000 \ref supp_dev_footnote_four "[4]" |
| |
| \par Classic AVR Devices: |
| |
| - at90s1200 \ref supp_dev_footnote_one "[1]" |
| - at90s2313 |
| - at90s2323 |
| - at90s2333 |
| - at90s2343 |
| - at90s4414 |
| - at90s4433 |
| - at90s4434 |
| - at90s8515 |
| - at90c8534 |
| - at90s8535 |
| |
| \anchor supp_dev_footnote_one |
| |
| \note <b>[1]</b> Assembly only. There is no direct support for these devices to be |
| programmed in C since they do not have a RAM based stack. Still, it could be |
| possible to program them in C, see the \ref faq_tinyavr_c "FAQ" for an option. |
| |
| \anchor supp_dev_footnote_two |
| |
| \note <b>[2]</b> The at94K devices are a combination of FPGA and AVR |
| microcontroller. [TRoth-2002/11/12: Not sure of the level of support for |
| these. More information would be welcomed.] |
| |
| \anchor supp_dev_footnote_three |
| |
| \note <b>[3]</b> The at76c711 is a USB to fast serial interface bridge chip |
| using an AVR core. |
| |
| \anchor supp_dev_footnote_four |
| |
| \note <b>[4]</b> The m3000 is a motor controller AVR ASIC from Intelligent |
| Motion Systems (IMS) / Schneider Electric. |
| |
| \section license avr-libc License |
| |
| avr-libc can be freely used and redistributed, provided the following |
| license conditions are met. |
| |
| \verbatim |
| Portions of avr-libc are Copyright (c) 1999-2010 |
| Werner Boellmann, |
| Dean Camera, |
| Pieter Conradie, |
| Brian Dean, |
| Keith Gudger, |
| Wouter van Gulik, |
| Bjoern Haase, |
| Steinar Haugen, |
| Peter Jansen, |
| Reinhard Jessich, |
| Magnus Johansson, |
| Harald Kipp, |
| Carlos Lamas, |
| Cliff Lawson, |
| Artur Lipowski, |
| Marek Michalkiewicz, |
| Todd C. Miller, |
| Rich Neswold, |
| Colin O'Flynn, |
| Bob Paddock, |
| Andrey Pashchenko, |
| Reiner Patommel, |
| Florin-Viorel Petrov, |
| Alexander Popov, |
| Michael Rickman, |
| Theodore A. Roth, |
| Juergen Schilling, |
| Philip Soeberg, |
| Anatoly Sokolov, |
| Nils Kristian Strom, |
| Michael Stumpf, |
| Stefan Swanepoel, |
| Helmut Wallner, |
| Eric B. Weddington, |
| Joerg Wunsch, |
| Dmitry Xmelkov, |
| Atmel Corporation, |
| egnite Software GmbH, |
| The Regents of the University of California. |
| All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions are met: |
| |
| * Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| |
| * 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. |
| |
| * Neither the name of the copyright holders nor the names of |
| contributors may be used to endorse or promote products derived |
| from this software without specific prior written permission. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 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. |
| \endverbatim |
| |
| */ |
