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Atmega328p sample codes for USART (transmission and reception) communication with a Linux/Windows PC

Home Page: https://www.xanthium.in/how-to-avr-atmega328p-microcontroller-usart-uart-embedded-programming-avrgcc

License: MIT License

C 15.49% Makefile 84.51%
atmega328p avr-gcc avr-programming uart embedded-c embedded-systems avr-microcontroller

atmega328p-serial-uart-to-pc-communication's Introduction

ATmega238p to PC Serial Communication(RX/TX) using USART

A collection of sample codes for communicating with Linux/Windows PC from an ATmega328p microcontroller using USART in asynchronous mode.

Code

  • Sourcecode written in Embedded C.
  • Compiled using AVR-GCC using Make utility.
  • Code can be uploaded using AVRDUDE and any compatible programmer.

Hardware setup

  • Code tested on ATmega328p (32 pin TQFP).
  • ATmega328p Clocked with a 11.0592MHz external crystal.
  • USB to Serial Converter used to connect ATmega328p with PC
  • PuTTY used to receive and Transmit data

ATmega328p Clocking (Fuse Bits)

  • External 11.0592MHz Crystal
  • avrdude -c usbasp -p m328p -U lfuse:w:0xFF:m

Online Documentation

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