I'm new to avr's and im stuck with this problem. I have at90s2313 connected to the breadboard, and it has a 10MHz ceramic oscillator with builtin caps, Three led's and one button. It is connected to comp via dt006 style home-made cable which has 390ohm resistor's on all pins exept gnd.
Now the problem is that when i trye to program it thru avrdude it says invalid signature 0xffff. It worked fine before and only change that i made before uploading was one comment in the code. I use fastavr for the code.