https://github.com/RealTimeEngineers/Arduino_programming_without_Arduino_IDE
It is possible to program the Arduino Uno without the use of Arduino IDE.
Download the WinAVR tools from the below link
https://sourceforge.net/projects/winavr/files/latest/download
After installation you can find the AVR tools in C:\WinAVR-20100110\bin
Open Notepad and save the below code as blinky.c and place it in some folder say 'test_blinky'
/* * Blinks LED on connected to pin 13 (PB5 on Atmega328P) * * Authors : Jabez Winston C, Hariharan K * */ #define F_CPU 16e6 // Arduino Uno's ATmega328P runs at 16MHz #include<avr/io.h> #include<util/delay.h> int main() { DDRB|=(1<<5); //Set PB5 as output by setting 5th bit DDRB register while(1) { PORTB|=(1<<5); //Set pin 13 (PB5)- High _delay_ms(100); //Wait for 100 ms PORTB&=~(1<<5); //Set pin 13 (PB5)- Low _delay_ms(100); //Wait for 100ms } return 0; //Refer Atmega328P datasheet for details regarding DDRB and PORTB }
Inside the folder 'test_blinky' ,with SHIFT key pressed ,right click and select Open command window here
Type the following commands on command prompt
avr-gcc -O2 -mmcu=atmega328p blinky.c
avr-objcopy -O ihex a.out a.hex
The first command compiles the program with optimization level 2 (O2) and
To flash the HEX file (a.hex) to Arduino ,use the below command
avrdude -patmega328p -carduino -PCOM25 -b115200 -D -Uflash:w:a.hex:i
Replace COM25 port by the COM port for your Arduino by looking into the device manager
-Uflash:w:a.hex:i tells the avrdude utility to (w)rite (i)ntel hex file (a.hex) to flash memory.
-b115200 tells at what baud rate avrdude should communicate with the bootloader. Here it is 115200.Changing it to some other value won't work.
To automate the 3 steps, a batch file is written which does the process of compiling,HEX file conversion and flashing the HEX file.Save the below code as build_and_flash.bat in test_blinky folder and run it.
del *.hex *.out avr-gcc -O2 -mmcu=atmega328p blinky.c avr-objcopy -O ihex a.out a.hex avrdude -patmega328p -carduino -PCOM25 -b115200 -D -Uflash:w:a.hex:i pause
Complete work is found in this github link
https://github.com/RealTimeEngineers/Arduino_programming_without_Arduino_IDE
How was it found that it works this way ?
Go to File -> Preferences in Arduino IDE
Enable verbose output during compilation and upload
Arduino IDE showing the commands executed in background during compilation and upload
Arduino's AVR tools can be found in C:\Program Files (x86)\Arduino\hardware\tools\avr\bin . Those tools can also be used instead of WinAVR tools.
The below batch file makes use Arduino AVR tools. Save as build_and_flash_arduino_tools.bat and make use of it.
@echo off ::Add 'C:\Program Files (x86)\Arduino\hardware\tools\avr\bin' to environment variable PATH set PATH=C:\Program Files (x86)\Arduino\hardware\tools\avr\bin;%PATH% :: Delete all .hex and .out files del *.hex *.out :: Compile 'blinky.c' for ATmega328p chip using 'avr-gcc' to generate 'a.out' avr-gcc -O2 -mmcu=atmega328p blinky.c :: Convert 'a.out' to Intel HEX file 'a.hex' using 'avr-objcopy' avr-objcopy -O ihex a.out a.hex :: Burn the HEX file(a.hex) to ATmega328 chip on Arduino Uno using 'avrdude' :: Replace COM25 by the COM port detected on your PC avrdude -C"C:\Program Files (x86)\Arduino\hardware\tools\avr\etc\avrdude.conf" -patmega328p -carduino -PCOM25 -b115200 -D -Uflash:w:a.hex:i ::Don't close console after execution pause
