I'm having this same problem with trying to install a bootloader onto my newly built Sanguino using a ATmega1284P chip. However, I didn't have a resonator to use with my Sanguino 1.3a pcb build, so I used a 16Mhz crytal in its place. After reading this, I'm wondering if I would solve my problem by soldering in two 22pF ceramic disc caps along with the crystal to make things work?
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