I probably did something stupid to an old Arduino Stamp (my first Arduino, so I'm a little emotionally attached to it). I am not able to upload sketches anymore. Was fiddeling around with this library ( http://interface.khm.de/index.php/lab/experiments/arduino-frequency-counter-library/ ).
Was working great last night. I unplugged the Arduino. But now I can't seem to get the Arduino excepting new sketches anymore, it gives me:
"avrdude: verification error, first mismatch at byte 0x0000 0x0c != 0x00 avrdude: verification error; content mismatch"
So I wanted to try to reburn the bootloader to the Stamp with an other Arduino as ISP. Did burn bootloaders to blank chips in the past, so I know that it should work, but can't get it to work with this Arduino Stamp.
I think I'm doing something wrong with the reset. If someone could post some thoughts about what could be wrong it would be much appreciated.