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Topic: PROBLEM TO UPLOAD ARDUINO mega 256 (Read 593 times) previous topic - next topic


I  took  the hex and i upload it on board with a programmer  ( stk 500 )  on chip mega 2560  with isp.       It is ok!!!!!!!!.

When you upload a sketch via isp then it will overwrite the bootloader.  You probably have no bootloader on the mega 2560.  You will need to put back the bootloader.


Thanks all of you.
I replace the bootloader on  secont chip 2560 via isp. Now it is ok.  There was:
  ( C:\Program Files\Arduino\Arduino ERW 1.0.3\hardware\arduino\bootloaders\stk500v2  )

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