> Can anybody give me an EXACT working scheme of a programmer using
> RS232 interface for PIC18F6520, including example of conecting it
> to the PIC.
your hopefull, beginners tend to avoid pics that only come in TQFP and pros
tend to buy programmers (the ICD2 being very popular for development)

seriously though the connections should be the same as for any other PIC,

PGC,PGD -> programmer
VPP -> programmer and resistor to VDD
GND -> programmer and system ground
VDD -> system VDD and possiblly programmer (read instructions with
programmer to see if it expects to power the target, be powered by it or use
independent power).
PGM -> programmer if using LVP otherwise tied low (with a resistor if its
desired to use the pin for other stuff in normal operation)

any programmer that supports the new style pic18 series chips should work
but you may have to edit its device definitions file yourself to add the
details of your chip.

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