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How to Plug and Play COM port?

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elchula

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io_ch26.pdf

I want to build a circuit, this circuit interfaces to Windows by COM port. And when I Plug the cable of this circuit to COM port ---> Windows will dectect automatically this circuit (or this device)....

How to build this circuit, and intefacing circuit 's controlled by whichever standard?
Help me. Thanx!
 

Hello,
I don't think that's possible.
 

Windows can do "plug+Play" hardware detection on the serial port, but I'm not sure if a restart is needed. See here:

**broken link removed**
**broken link removed**


However, if that is not really what you need...

You can make your *application* running on the PC recognize the fact that something has been sent to the serial port, but not just the connection of a device if it does not send anything.

For instance, you can use the serial port interrupt to trigger your application on a received character, a change in "Carrier Detect" or change in "Request To Send" signals.

If this method is useful to you, see here for a little more detail:

**broken link removed**

Cheers,
FoxyRick.
 


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