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Topic: Arduino Mega - Upload problem with bootloader (Read 395 times) previous topic - next topic


since a few days I can not upload programs to my Mega R3 over USB using the bootloader. The debug message from avrdude is
Code: [Select]
avrdude: stk500v2_ReceiveMessage(): timeout. I can't remember that I changed anything.
Upload of programs with ISP is working fine. Communication over serial (USB) is fine (Loopback test and from programs).
The board gets a reset, when starting the upload form the IDE.
I seems that the program does not jump to the bootloader.
When I press the reset button the Pin13 LED stays off.
I reloaded the bootloader with my ISP with no errors but the problem stays the same.
(OS=Ubuntu 12.04, IDE 1.0.1)

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