Arduino Mega 2560: Difference between revisions

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To get your arduino mega 2560 board into DFU mode...
This guide will help you flash the new firmware onto your Arduino Mega 2560 board. The update is necessary if you want to make your arduino a HID (eg: emulate as a Keyboard, Mouse).


http://gebloggendings.wordpress.com/category/elektronik/arduino/
You should consult the guide available already at Arduino's website at http://arduino.cc/en/Hacking/DFUProgramming8U2.


You need to short the 2 pins for the mega8u2 and then short the center cap (near where the "reset_en" pad is) on the side facing the power connector with ground.
== Device Firmware Update (DFU) Mode ==
 
The Arduino guide does not go into detail on how to get your mega board into DFU mode. Fortunately, there is no soldering required as we only need to short two things:
# The MEGA8U2 Reset pin
# HWB pin
 
Refer to the image below from http://gebloggendings.wordpress.com/category/elektronik/arduino/
[[File:Mega dfu|thumbnail]]
 
 
== Flashing the Update Firmware ==
 
Download FLIP from Atmel's website (http://www.atmel.com/tools/flip.aspx).  


Get the file at https://github.com/arduino/Arduino/blob/master/hardware/arduino/firmwares/atmegaxxu2/arduino-usbserial/Arduino-usbserial-mega.hex
Get the file at https://github.com/arduino/Arduino/blob/master/hardware/arduino/firmwares/atmegaxxu2/arduino-usbserial/Arduino-usbserial-mega.hex


The contents of the update is available below:
<syntaxhighlight lang="text" line start="1" enclose="div">
<syntaxhighlight lang="text" line start="1" enclose="div">
:10000000A2C00000BBC00000B9C00000B7C0000023
:10000000A2C00000BBC00000B9C00000B7C0000023
Line 265: Line 278:
:00000001FF
:00000001FF
</syntaxhighlight >
</syntaxhighlight >
Ensure that your arduino is in DFU mode and has the DFU drivers installed (available from the FLIP's install directory). Open Flip. Flip should be able to see that you have a AT90USB82 device. Load the .hex file and connect FLIP with your arduino via USB. Then click on 'Run' to apply the update.
See also: http://noquest.com/electronics/arduino-uno-firmware-update/
[[Category:Guides]]

Revision as of 05:50, 8 March 2014

This guide will help you flash the new firmware onto your Arduino Mega 2560 board. The update is necessary if you want to make your arduino a HID (eg: emulate as a Keyboard, Mouse).

You should consult the guide available already at Arduino's website at http://arduino.cc/en/Hacking/DFUProgramming8U2.

Device Firmware Update (DFU) Mode

The Arduino guide does not go into detail on how to get your mega board into DFU mode. Fortunately, there is no soldering required as we only need to short two things:

  1. The MEGA8U2 Reset pin
  2. HWB pin

Refer to the image below from http://gebloggendings.wordpress.com/category/elektronik/arduino/

File:Mega dfu


Flashing the Update Firmware

Download FLIP from Atmel's website (http://www.atmel.com/tools/flip.aspx).

Get the file at https://github.com/arduino/Arduino/blob/master/hardware/arduino/firmwares/atmegaxxu2/arduino-usbserial/Arduino-usbserial-mega.hex

The contents of the update is available below: 

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Ensure that your arduino is in DFU mode and has the DFU drivers installed (available from the FLIP's install directory). Open Flip. Flip should be able to see that you have a AT90USB82 device. Load the .hex file and connect FLIP with your arduino via USB. Then click on 'Run' to apply the update.

See also: http://noquest.com/electronics/arduino-uno-firmware-update/

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