I can install software on atmega64, but it doesn't work, I did a boot installation, even the led does not work, I wonder what could be the problem?
Yeah, you and me both.
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A most unusual choice. What board do you have and what core/board did you select?
What code, what core, what IDE version, how was it uploaded & finally, can you provide a schematic on how you have it wired up.
We then have a point to start diagnosing the issue.
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