I have a strange problem. I am developing on-board RC glow plug driver. Everything was ok till today. I have ordered prototype PVCs, soldered them and started to write the code. After about two weeks suddenly my board stopped to work. I can program it but nothings looks to work. I cant even lit a diode. Fuses are checked. Strange is that diodes should be ON on boot (they are connected to Vcc). But hey are dead. I have 3.45-350V on the pins.
I have made another board and it doesn't work as well.
Can anyone help please?