Maybe I am missing something in the documentation, but I cannot find where to configure a second serial port and assign it as a VTREG S1IN and S1OUT. I am able to debug the first serial port using SIN and SOUT. Any help is appreciated
Ok, found it, I have to write my own device dll to support the extra serial port. I am using the ST uPSD 3234A. It has 2 serial ports but only one is supported under debugging sessions with the S8051.DLL