andrimarjonsson/whatAVR

Small AVR library in C.

#whatAVR Small collection of code I refactored from various project I've done relating to AVRs. Getting pretty dated now since I haven't done much AVR programming in a few years.

Below is a small overview of the modules available.

##Getting started

1. mkdir /path/to/project
2. touch /path/to/project/main.c
3. cp /path/to/whatAVR/Makefile_template /path/to/project/Makefile
4. cp /path/to/whatAVR/config.h /path/to/project/config.h
5. cd /path/to/project
6. Edit the paths in the Makefile to point to where whatAVR is.
7. Add the following code to main.c and run make

#include "config.h"

#include <avr/io.h>

int main( void ) 
{
    sei();
    
    // start main loop
    while( 1 ) 
    {

    }
    return 0;
}

##Modules

Name	Description
LFSR	Pseudo-random number generator using linear feedback shift register in Galois configuration.
RC5	Decodes RC5 codes from IR remotes.
UPRINTF	Small printf lib.
USART	Hardware USART library with interrupt support and send/recv callbacks.
SPI	Hardware SPI library.
TWI	Hardware TWI/I2C library.

##Drivers

Name	Description
SD/MMC	Routines for accessing SD/MMC cards.
MAX6675	Routines for communicating with the MAX6675 chip from Maxim.
NSM73M	Routines for communicating with the NSM73M FM transmitter from SparkFun.
CLCD	Library for character LCD's using the HD44780U(4 bit mode) and compatible controllers.