I'm trying to decipher a serial communication protocol between a software and a monitor device. I can spy the serial port and see all the data that is transfered through the port. I determined the serial port parameters(baud rate, start/stop bits, data bits, RTS,DTR) and developed a Java application that send to this monitor device all the command codes that the software is sending; some kind of software emulation.
Now I'm trying to decrypt all the commands code and determine what every command code stands for. The Ideal goal is to fully determine the protocol, if this is possible.
Did anyone worked on such a project ? Can anyone give some ideas to do that?
Thank you,