I've just soldered an Attiny85 MLF-20 onto my PCB wich breaks all the pins out for me.. Great... But i can't read the device signature with my STK500.
I've tried with HVSP and ISP.. Nothing.... I am completely lost as to why i can't read the signature from the chip..
I have noticed a flaw in my PCB though. I forgot to connect the bottom pad of the MLF-20 package to ground.
Could this cause the chip to not function even if i connected all the other pins of the chip has been successfully connected to the PCB and the STK500?