MicroTouch Systems FPD Touch Monitor Spécifications télécharger pdf (Page 27)

Chapter 2 Firmware Commands 27

AutoBaud Enable

Note:

MicroTouch provides this command for compatibility with older touchscreen

controllers. To ensure compatibility with all existing and future MicroTouch controllers,

do not use this command when developing your touch drivers and applications.

Syntax: <SOH>AE<CR>

Description: Turns on the automatic baud rate detection feature.

When you enable AutoBaud, the controller changes its communication

rate to that of the next command from the host system. Thereafter,

the controller sets its communication rate to the first command

received from the host system after powering on the unit.

Although the AutoBaud Enable command sets the communication

rate, it does not automatically set the parity, the number of data bits,

and the number of stop bits. The controller cannot communicate with

the host system unless all communication parameters are the same.

AutoBaud Enable is the factory default for some touchscreen

controllers. However, because this automatic feature is limited to the

communication rate, MicroTouch recommends that you issue an

AutoBaud Disable command to turn off the AutoBaud feature. After

you disable AutoBaud, send a Parameter Set command to change the

communication parameters (parity, number of data bits, number of

stop bits, and baud rate).

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

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MicroTouch Systems FPD Touch Monitor Spécifications Page 27