Burning ATmega328 bootloaders

I followed the instructions to set up a breadboard as a platform to burn bootloaders onto some factory-fresh ATmega328 chips, according to instructions. Specifically, I set up the breadboard with a 16Mhz crystal rather than using the chip’s onboard clock.

I uploaded the ArduinoISP sketch my  Duemilanove, made all the right cross connections to the breadboard,  changed the “programmer” setting from AVR-ISP mkII to “Arduino as ISP” and made sure that the target was still set to Duemilanove at 16Mhz. Then, I hit “burn bootloader”. There was a pause of a few seconds, followed by the following error message in the IDE:

Error while burning bootloader. avrdude: stk500_getsynch():not in sync: resp=0x15

I found some similar issues and suggestions on the forums, and it seems the problem is the autoreset on the Duemilanove. The solution: before trying to burn the bootloader, connect the Arduino’s reset to 5V through a 120 ohm resistor. Now, when you select “burn bootloader” lights immediately start flashing on the host arduino and after a few moments, the IDE displays a confirmatory message that the operation was successful. Now the target ATmega328 can be popped off the breadboard and another one can be burnt. After burning bootloaders onto as many chips as desired, the whole assembly can be taken down and the 120 ohm resistor removed from the host arduino board.

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