I have a one question:
I want write program for jdm - programmer, but it's work on a CTS, RTS and other serial signals..
and now i need directly access to SIO chips.. It's possible.. and how I can do it?

lame answer: use serial.device

and use ramdebug option for your bootstring to avoid debugoutput to serialport

Can you read my message again?
I have Combo3 programmer and it works with serial device fine. But many people has jdm-programmer and i want connect it to his computer. And I would like to write this programm for them.