Remember computers have been multi tasking long before they had multiple processors.
In the realm of PCs, I agree. In any event, methinks this is one of those symantics things; multi-tasking vs multi-threading.
I've been wanting to talk to servo drives from MACH and it sounds like you might be a good go-to person for serial communications questions related to Mach . . . . so:
I know of three possibilities (four if you count writing a plug-in, which is beyond my capabilities) to get mach talking to the serial port.
1) is one of the 'semi-documented' VB script commands, but there is only mention of output on that one.
2) again VB script, but this time a generic routine thatone would have to flech out with all of the parameters for serial port control.
3) a recently posted technique using what appeared to be a Windows TSR that is called (I think) also thru VB script. Nobody really took the bait on that one and it faded quickly.
So, Mr. Birt, how difficult would it be to get bi-directional RS232 comm going that is callable from within Mach?