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Author Topic: Arduino Mega 2650 r3 timeout when uploading  (Read 516 times)
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Hello,
so i have got my arduino yesterday and it worked fine i have uploaded a couple of sketches and they worked perfectly, but today when trying to upload a sketch it compiles but doesnt upload and gives me the timeout error.
But after compiling the "L" led flashes, and also when i press the reset button the "L" led flashes indicating that there is no problem with the bootloader.
The Problem happened after i tried a program that work with a bluetooth module (connected to pins 0 &1) so i can turn on and off a led using commands from an android device. At first it didnt work so i decided to remove the usb cable and added a powersupply (12v). but also didnt work but after that when i tried uploading code again the error poped up.i got the program to work after realizing that the tx and rx pins are connect the wrong way, and the program worked. I dont think that the board is fried bec i think there is a communication between the arduino and the computer that is shown when the program finishes compiling.
*Tried different usb cables
*Tried different computers
*Tried Arduino 0022
*Tried changing the "wiring" in boards.txt
*Tried tons of drivers
but didnt work smiley-sad
« Last Edit: March 08, 2014, 02:49:52 pm by Diymaker » Logged

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Please check
http://forum.arduino.cc/index.php?topic=224416.0

for fix.
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didnt work smiley-sad
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Two suggestions,
   don't use D0 and D1 for the bluetooth, they are usually used for upload and download thru the USB
   if you have more than three exclamation points in a row, remove them or update the bootloader.

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either its the bootloader or a problem with the atmega16u2 chip, cuz the loopback test doesnt work :/
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