Thank you *so* much. You rescued my ATmega1284P! I wired up a breadboard from the schematic and found programming highly unreliable until I removed the 100R pull-down on the +5V BC557 after which it worked first time. Thank-you!
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Thank you *so* much. You rescued my ATmega1284P! I wired up a breadboard from the schematic and found programming highly unreliable until I removed the 100R pull-down on the +5V BC557 after which it worked first time. Thank-you!