Serial Port on Colour Touch Screen

[kcampbell]

Hi,
I have been trying to poke some simple text out of the Com Port on a Colour Touch Screen. (To see if it works, then when it is working, send commands to an AV amplifier...)

I used Com 1 as a first attempt, and got errors from the unit. (Can't remember exactly, but it was when I tried to open the port.)

Assuming that I had the wrong port, I rewrote the code to use 1, 2, 3 or 4 (so I could find which one did work).

The error went away, but I'm not getting anything out. (Am using a null modem (crossover) cable it that helps.)

Anything I can use to debug this?

[rhamer]

Good old Hyperterminal should give you what you need (asuming you are sending printable ASCII characters).

It's not great at everything but should suffice for what you are doing.

I dont know if you need a NULL Modem cable or not, as I don't have a Colour Touch to check, but it will probably be in the documentation somewhere.

[ashleigh]

One of the other chaps should be able to help you more than I can - but from what I can remember, COM2, COM3, and COM4 are used internally as part of the Colour Touchscreen design. So I'd guess COM1 should be your best bet.

[Darren]

You can only use COM Port 1 with Colour C-Touch. I have just updated the help file to reflect this.

If you use any other COM Port, the logic engine will give a run time error number R111.