AVR Microcontrollers in Linux

Posted on Feb 7, 2014

A microcontroller is a single-chip computer. It has internal RAM, ROM, timers, counters, interrupt circuitry, I/O ports, analog comparators, serial USARTs, analog to digital converters, watchdog timers, and a RISC architecture. When you are using a microprocessor, you cannot program it alone. You need other components, like RAM, ROM, timers, etc.

AVR Microcontrollers in Linux
Click here to download the full size of the above Circuit.

For programming, you should know its architecture thoroughly: You must read the datasheet for your microcontroller. atmega103, atmega603, atmega8, atmega48, atmega88, atmega8515, atmega8535, atmega16, atmega161, atmega162, atmega163, atmega165, atmega168, atmega169, atmega32, atmega323, atmega325, atmega3250, atmega64, atmega645, atmega6450, atmega128. binutils: Programs to manipulate binary and object files that may have been created for Atmel`s AVR architecture. This package is primarily for AVR developers and cross-compilers. avr-libc: Standard library used for developing C programs for Atmel AVR microcontrollers. This package contains static libraries, as well as needed header files. You download the above packages untar, configure, and install it. If you are using Debian or Ubuntu, these packages are available in your distribution: Install them using apt or synaptic package manager. Before proceeding, have a look at this manual about _avr-libc_, which will help you program better, and understand. Also, refer to the datasheets for the various AVR microcontrollers. /* ledblink. c, an LED blinking program */ #include #include void sleep(uint8_t millisec) { while(millisec) { _delay_ms(1);/* 1 ms delay */ millisec-; } } main() { DDRC |=1<

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