MicroTouch Systems FPD Touch Monitor Spécifications télécharger pdf (Page 61)

Chapter 2 Firmware Commands 61

The controller stores only one set of touchdown and liftoff points.

If the screen is touched more than once before the controller

receives a ^Q, the controller reports the most recent touchdown

point only. If a touchdown is reported, it will report the last liftoff

point regardless of how many times liftoff has happened before the

second ^Q is received.

Note that the controller does not send any data in response to the ^Q

request if a user does not touch the screen. The controller holds the

^Q and informs the host system the next time a user touches the

screen. Therefore, the controller will send the X, Y coordinate data to

the host at any time after a ^Q if there was no touch at the time the

host sent the ^Q.

Response: <SOH>0<CR> Positive response.

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MicroTouch Systems FPD Touch Monitor Spécifications Page 61