Problem flashing the Atmega328P

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#1
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avrdude.exe: verifying ...
avrdude.exe: verification error, first mismatch at byte 0x0100
             0xff != 0xcf
avrdude.exe: verification error; content mismatch

avrdude.exe: safemode: Fuses OK

avrdude.exe done.  Thank you.

 

having this problem from yesterday not knowing what to do.

M

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The fact that the failing address appears to be an SPM boundary suggest you might be talking about a bootloader - is that the case?

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yes, i uninstalled Atmel Studio freshly reinstalled changed avrdude also.

 

M

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You can either give a complete engineering report in the first place or you can do this in dribs and drabs and by repeated questions. I would suggest you'll get to a solution quicker with the former.