All others of you, if anyone got source code in a meantime, don't hesitate to send it to me.
Thanks in advance.
Hello,
I've tried Dell PSU Emulator based on PIC10F220 but it is not working.
I've found working one:
http://www.mikrocontroller.net/topic/186476
There is attachment with source code and binary HEX file.
I've tried with ATtiny13A and external 3.3V power supply (for testing purposes).
Fuse bits: 9.6MHz Internal RC and turned off the DIV-8 option.