The user LED should start blinking Well done! To find out more, including how to control cookies, see here: You are commenting using your Facebook account. Connect them briefly with a piece of wire. Some sellers have been known to send out a new board and tell you to keep the bad one.

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Be aware of pin number 1! Here’s how to update the firmware on your 16u2 in a few steps.

Disconnect the USB cable. The serial port for your board should no longer show up. Press “Program” button Click on “Memories”. In the Arduino programming environment, check the list of ddfu ports. Might just need the 16u2 fw reinstalled I don’t use atnega16u2 boards with the 16u2 on them – I do pro mini or chg-nano ripoffs. You can skip the part about putting the chip in DFU mode by shorting the pins, because your chip is permanently in DFU mode until it gets some firmware on it.


Dfy Fleeming August 5, at 8: Mac and Linux users please follow the Arduino page for installing hex files http: I read the process for programming the chip. Don’t forget to click on the “Set” button. Once MacPorts is installed, in a Terminal window, type sudo port install dfu-programmer.

Reset the ATmega8U2 / ATmega16U2 of your dead Arduino Mega / UNO

You are commenting using your Twitter account. I’ll have to get the parallel adapter and wiring made up.

I wish all of you good fortunes for your coming sites and posts. If you have your own board with different crystal values, you will need to prepare your own firmware files.

Connect the USB cable. Leave a Reply Cancel reply Enter your comment here Some sellers have rfu known to send out a new board and tell you to keep the bad one.

The pins are located near the USB connector, as shown in this picture. The firmware version is listed as “version” e. Version two is shown with a R2, version 3 shown with R3. You are now just 1 step back to see the Arduino alive again.


I ended up sending it back to the seller and getting a replacement. Download Atmel’s flip programmer from here Mac: On Windows you can use it straight away. Everything is set and now you will burn the ATmega with is step.

Arduino – DFUProgramming8U2

Atmel has already provided us with application for the solution. Unzip the downloaded file. On the Arduino R3 that’s very easy: To verify you have reset the 8u2 or 16u2 chip: On Linux you need some extra steps and might need to install gcc and others tools, see compiler messages. Pages Home MuseScore Tips. Programming a new firmware consists of the following steps: I’ll bet you can find a tutorial to upload using DFU.