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Author Topic: Errors trying to get the default Blink program running  (Read 608 times)
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I am getting the following error when uploading the standard blink program:

avrdude: verification error, first mismatch at byte 0x00000x0c != 0x04
avrdude: verification error; content mismatch

I am using the Arduino Duemilanove: Atmega328 board
OS: Windows Vista 64-bit

is this indicating a problem with the board, or the uploading process?
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is this indicating a problem with the board, or the uploading process?

In most cases the avrdude error messages are not very helpful so it's difficult to say.

Have you ever successfully uploaded a Sketch to the board?

What do you have connected to the board?

Are the FTDI drivers up-to-date?
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I just got this board for a school project and have yet to use it for anything.

I have been running through the Getting Started w/ Arduino on Windows guide on this website and have yet to connect anything to the board.

I am assuming windows installed the latest drivers when I initially connected the board.
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I just got this board for a school project

From where?  Used?

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I am assuming windows installed the latest drivers when I initially connected the board.

You are certainly a trusting sole.  Go to Device Manager and confirm that the latest driver is installed.
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Used board from school.

Driver date: 18/03/2011
Driver Version: 2.8.14.0

that is the latest driver version I can find.

Getting the same error on a different computer running windows XP.
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It is time for a loop-back test...

1. With the board DISCONNECTED FROM THE COMPUTER, either remove the processor or connect a jumper from GND to RESET.

2. Connect a jumper from pin 0 to pin 1.

3. Connect the board to the computer.

3. Open your favourite terminal program.  Serial Monitor will work.

4. Open a serial connection from the terminal program to the board.  The baud rate is irrelevant; just pick something.

5. Type / send some data.


Was the data you sent echoed back?
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I need to get some supplies and have a bunch of other stuff to do today. I will try your suggestion Coding Badly later on. Thanks for the help.
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Took the board into the school to get them to test it. They ran into the same error on their computers so they took it back and gave me a new uno board to use instead. They also told me that a few of the older boards had burnt out micro-controllers on them so I am thinking that was probably the problem with this one too.
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