AVR Processors Components

AVR Processors Components

The AVR RISC microcontroller family is made by Atmel Corp. It uses a RISC core running single cycle instructions, and a well defined I/O structure that limits need for external components. Some features in AVR devices: internal oscillators, timers, UART, SPI, pull-up resistors, pulse width modulation, ADC, analog comparator, watch-dog timers. The architecture was created at the Norwegian Institute of Technology (NTH), by two students: Alf-Egil Bogen, Vegard Wollan, and developed further at Atmel Norway AS, a subsidiary founded by them. The chip is supported by Atmel, and by a vibrant, large, and growing user community, which provides free projects, software, tutorials, and much other assistance.

Top: Computers: Hardware: Components: Processors: AVR

Editor's Picks:

AVR 8-Bit RISC

- Official product information from Atmel Corp. Include overview, technical specifications, details of application support, and information about various associated tools and software.

Dick Cappels' Project Pages - Many projects using microcontrollers (AVR, ATMega8, ATmega163, ATtiny12, ATtiny2313, AT90S1200A, AT90S2313, AT90S8515/ATMEGA8515), analog, RF, and all 3 mixed; much free information.
Jesper's AVR Pages - Many projects: accelerometer, 5-digit frequency counter, temperature controller, chatboard conversion, precise Direct Digital Synthesis sinewave generator, uC/OS-II RTOS port, digital guitar tuner, MP3 players, add very large DRAM on small CPUs.
ECE476 Final Projects - Many electrical engineering student projects, using Atmel ATmega32 AVR chips. Cornell University.
AVR-Assembler-Tutorial - Introduces assembly programming language for Atmel AVR processors (AT90S) with practical examples. English, Deutsch.
Atmel AVR - Growing article, with links to many related topics. [Wikipedia]
Procyon AVRlib: C-Language Function Library for Atmel AVR Processors - Descriptions, documents, downloads.
HP InfoTech S.R.L. - Makes CodeVisionAVR C compiler, integrated development environment (IDE), automatic program generator, ChipBlasterAVR in-system programmer, code wizard, for Atmel AVR processors. [commercial]
AVR Freaks - News in Weblog format, links, forum, tutorials, articles, specifications; devices, tools, projects, vendors. Some areas need registration.
WebRing: AVR - Set of links to websites on Atmel AVR microcontrollers, related projects.
AVR Butterfly and Beginners Site - The Butterfly is a credit-card sized demo board from Atmel Corp. It is feature-dense and low cost. Descriptions, tutorials, forum, block diagram, primer, many code samples: application notes with commented source code.
AVR Projects - Many projects: servocontroller; MIDI keyboards, splitter; programming adapter, starlight simulator, infrared-RC5 interface, robotics. [English, Dutch]
AVR Microcontroller Projects - Many projects, tutorials; tools, book list, photo gallery, links.
WinAVR - Suite of executable software development tools for Atmel AVR RISC processors, hosted on the Windows platform, has GNU GCC compiler for C/C++. Open source.
SCU Robotic Systems Laboratory: Embedded Systems Resources - AVR resources: beginning, installing, hardware, motor controllers, links, courses using AVR processors, downloads; ARM hardware and tools.
BelliBot - Documents robot that uses AVR processors; photographs, circuit layouts, description in German.
ATtiny.com: AVR Microcontroller Projects - Many projects; much free information: hex dumps and software, full programs, ASM examples, Manchester code, bi-phase code; tutorials, instructions, tips, tricks, datasheets, diagrams. English, Dutch.
AVR Core: Overview - Description of open source AVR clone, coded in VHDL; core compatible with ATmega103, has same instruction set and timing with few exceptions. Opencores.org.
Alberto Ricci Bitti Page - Award-winning electronic designs, circuit diagrams, ready-to-use schematics, source code; mainly for microcontrollers by Atmel (AVR), and PIC.
BASCOM AVR Tutorial - For BASIC compiler for writing software on Windows to download to Atmel 8-bit controllers; easy to learn and use, low cost. Introduction, downloading, installing, configuring, sample program with screenshots. Candle Automation, Ltd.
Linux Development Tools for Atmel AVR - Tool chain development for AVR on Linux: programmer hardware, Linux driver, AVRASM-compatible assembler/linker, debugger, simulator. Theiling Online.
ScienceProg - AVR tutorials, projects, links; and other science, embedded, biomedical engineering, physics content.
The AVR Assembler Site - Descriptions, tutorials, many code samples: application notes with commented source code.
Smiley Micros - AVR consulting and related products: C programming book, Butterfly development kit, projects kit, Butterfly carrier; downloads, testimonials.
Electrons: Articles: AVR - Articles on varied aspects of AVR use. Psychogenic, Inc.
AVR Libc - Goal: high quality C library to use with GCC on Atmel AVR microcontrollers. Together, avr-binutils, avr-gcc, and avr-libc are the core of the open source toolchain for AVR.
A GNU Development Environment for the AVR Microcontroller - Document on many details of GNU tools for AVR class processors.
AVRButterfly: AVR Butterfly and Beginners Group - Email forum at Yahoo Tech Groups.
MCS Electronics - Makes BASCOM AVR/8051 Windows BASIC compiler, educational development board, with tutorials, forum; other embedded electronic systems.
The Atmel AVR Forum - Many topics: beginners help, Assembly, BASIC, C; projects, technical and hardware; commercial issues; robot car and motor control; computer math.

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