How is possible control or read these lines with simulated processor? Rx and Tx data through SBUF and uv2's ASSIGN command is ok, but how to control assigned serial port RTS an other lines? Roman
"I need only create virtual connection butwen some simulated 8051's port pin and the same PC's serial port that is ASSIGN-ed in uv2 to SBUF." Hmm... I doubt that will work. :-( I doubt that Windows will allow both uVision and your code to simultaneously access the same COM: port - but I've never tried, so I could well be wrong... "Exists some AGSI call function or structure that I can use for this?" I don't know. If it's not documented, you'd have to ask Keil support direct...
I'll try to use one port for modem lines and another for uv2's communication and I join them physically... Maybe I'll be succeed.