BURN ARDUINO BOOT LOADER USING another ARDUINO (Arduino as an AVR ISP)

This tutorial explains how to use an Arduino board as an AVR ISP (in-system programmer). This allows you to use the board to burn the bootloader onto an AVR .
(e.g. the ATmega168 or ATmega328 used in Arduino).

Instructions

To use your Arduino board to burn a bootloader onto an AVR, you need to follow a few simple steps.
  1. 1. Open the ArduinoISP firmware (in Examples) to your Arduino board.
  2. 2.Note for Arduino 1.0: you need to make one small change to the ArduinoISP code. Find the line in the heartbeat() function that says "delay(40);" and change it to "delay(20);".
  3. Select the items in the Tools > Board and Serial Port menus that correspond to the board you are using as the programmer (not the board being programmed).
  4. Upload the ArduinoISP sketch.
  5. Wire your Arduino board to the target as shown in the diagram below. (Note for the Arduino Uno: you'll need to add a 10 uF capacitor between reset and ground.)
  6. Select the item in the Tools > Board menu that corresponds to the board on which you want to burn the bootloader(not the board that you're using as the programmer). See the board descriptions on the environment page for details.
  7. Use the Burn Bootloader > Arduino as ISP command.

    Circuit (targeting Arduino Uno, Duemilanove, or Diecimila)

    .

An Arduino board serving as an ISP to program the ATmega on another Arduino board. On the Arduino Uno, you'll need to connect a 10 uF capacitor between reset and ground (after uploading the ArduinoISP sketch). Note that you need access to the reset pin on the target board, which isn't available on NG or older boards.


Circuit (targeting Arduino NG or older)



By Renjith 


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