Hello everyone. I'm trying to bootload an ATmega328p with an external 8MHz Quarz using an Arduino Pro Mini 3.3V 8MHz as ISP. Sounds straightforward, but it isn't. Bootloading seems to work, but I cannot upload sketches. I've been playing around with this for quite some time, so I decided to ask fo…

After bootloading an ATmega328p (3.3V 8MHz): Uploading sketches doesn't work.

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