Thankyou for these excellent replies. I am in the process of looking into all of them, and thankyou for your download, itsmoked, which now sits on my PC, with me experimenting with it.
As well as sending bytes to a PC and getting the PC to interpret them and display fault information, I also...
At the moment I have a PIC in a circuit where it's monitoring faults (the outputs of various comparators) and lighting LEDs when a fault occurs.
However, i want to get rid of the LEDs and serially send the fault "byte" to my PC and program it to display the fault in a window.
I will obviously...