What steps will reproduce the problem? 1.load ArduinoAsISP sketch on an Uno 2.Attempt to program another Uno

What is the expected output? What do you see instead?

avrdude produces errors as follows: avrdude: stk500_getparm(): (a) protocol error, expect=0x14, resp=0x14

avrdude: stk500_getparm(): (a) protocol error, expect=0x14, resp=0x01 avrdude: stk500_initialize(): (a) protocol error, expect=0x14, resp=0x10 avrdude: initialization failed, rc=-1 Double check connections and try again, or use -F to override this check.

Massimo, how do you want to handle this?

Christian: can you take a look at this?

Is there an estimate as to when this will be addressed?

I would like to use an Arduino as an AVR ISP (In-System Programmer) as described here: http://arduino.cc/en/Tutorial/ArduinoISP

Theory: ArduinoISP counts on running at a different bitrate than the bootloader, causing the bootloader (after auto-reset) to see garbage and start the sketch. But optiboot doesn't recognize "garbage"; it just assumes that unrecognized characters are irrelevant commands that it doesn't implement, so it just keeps running.

Disabling auto-reset is a workaround.

Fixed in the 1.0-associated sources, and now shipping on new hardware.