I've been working with the ATmega1284P in the TQFP package. Not exactly sure what happened, but I hosed the fuse bits. Happy to report that the HV Rescue Shield works nicely on the 1284P! It wasn't pretty, but I can't argue with success. I did have to remove the 10K pullup resistor and 1N4148 diode on the reset pin and solder a wire to the board to access the XTAL1 pin.
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