ECE I - krishnaramb/ECE GitHub Wiki

##Contents

• Definition
• Make file

###Definition

###Make File I have compiled a script (make file) which uses AVRDUDE to push the program directly into the arduino uno board without using arduino IDE. This script will compile the program and creates the object (.o) file. It then links the different object files using linker. Further it is converted to the HEX file and using AVRDUDE, it will be flashed into the arduino uno board. You can find the program here

#! /bin/bash
#script for flashing program to the m328P microcontroller
#give the name of the script followed by the c file


fileName=$1
echo "-----------------------------------"
echo "-----------------------------------"
echo "Script is going to Flash the file: $fileName"
fileName=${fileName%.*}
echo "-----------------------------------"

if [ -e $fileName.hex ]
then
     echo "Deleting: $fileName.hex"
     rm -rf $fileName.hex
fi

if [ -e $fileName.o ]
then
     echo "Deleting: $fileName.o"
     rm -rf $fileName.o
fi



echo "compiling the program"
echo "-----------------------------------"
avr-gcc -Os -DF_CPU=16000000UL -mmcu=atmega328p -c -o $fileName.o $fileName.c
if [ ! -e $fileName.o ]
then
     echo "Error is generating obj file, exiting...."
     exit
fi


echo "Linking the program"
avr-gcc -mmcu=atmega328p $fileName.o USART.o 25LC256.o -o $fileName
echo "-----------------------------------"


echo "Converting the file into Hex format"
avr-objcopy -O ihex -R .eeprom $fileName $fileName.hex
echo "-----------------------------------"

if [ ! -e $fileName.hex ]
then
     echo "Error is generating hex file, exiting...."
     exit
fi


echo "Checking if the port is detected or not"
COMPORT="$(ls /dev|grep ttyACM)"
echo "-----------------------------------"

if [ -z "$COMPORT" ](/krishnaramb/ECE/wiki/--z-"$COMPORT"-);then
    echo "*************No Device is Connected !!! Please check you connection......"
    exit 
fi
echo "COMPORT detected: $COMPORT"
echo "-----------------------------------"
echo "Flashing the hex file: $fileName.hex"
echo "############################################"
echo "############################################"
avrdude -F -V -c arduino -p ATMEGA328P -P /dev/$COMPORT -b 115200 -U flash:w:$fileName.hex