Specifications

Chapter 1 MicroTouch Touchscreen Controllers 19
Controller Initialization
To achieve optimal touchscreen performance, MicroTouch
recommends that you initialize your controller. The initialization
commands vary depending on your controller.
Table 3 lists the firmware commands you should send to the controller
during your factory configuration.
Additionally, if your controller supports the Output Status command,
the controller automatically sends the output status information to the
host on power-up. Therefore, the host can detect a power-up
condition. Note that the controller sends the status information only if
autobaud is disabled. If autobaud is enabled, the controller waits for
the host to send a command.
For more information on each command, refer to Chapter 2.
Table 3. Initialization Commands
Controller Initialization Command Sequence Output Status
Serial/SMT2
Serial/SMT3V
Serial/SMT3RV
Serial/SMT2 Daughterboard
Serial/SMT3V Daughterboard
PC Bus SMT2
PC Bus SMT3V
PC Bus SMT3RV
For these controllers, issue the following
commands:
Reset <SOH>R<CR>
AutoBaud Disable <SOH>AD<CR>
Parameter Set <SOH>PN812<CR>
Format Tablet <SOH>FT<CR>
Mode Stream <SOH>MS<CR>
Parameter Lock <SOH>PL<CR>
These controllers
send output status
information on
power-up.
Serial/SMT3
Serial/SMT3R
TouchPen 4
TouchPen 4+
MousePort
For these controllers, you only need to send a
Reset command after power-up.
Not applicable