Output Identity; Restore Defaults - 3M PX5 Series Reference Manual

32
Use Z to determine that you are communicating with the controller or to make sure that a
utility is communicating with the controller. Using this command does not affect the
controller's current operating parameters.

Output Identity

Syntax: <SOH>OI<CR>
Response: <SOH>ADXxxx<CR>
where:
AD
Xxxx = This is a unique identifier not necessarily the actual firmware revision number.
Description: Returns a 6-character identifier, which describes the controller type and the firmware
version number.
3M Touch Systems recommends that the host system issue a Reset command whenever
the host system is powered on and is attempting to establish communication with the
controller.
The amount of time needed to execute a Reset command is typically 500 milliseconds
with a defined maximum of 2000 milliseconds. Therefore, the application program
should wait and be sure it receives the command response before issuing another
command to the controller following the reset.

Restore Defaults

Syntax: <SOH>RD<CR>
Response: <SOH>0<CR>
Description: Returns to the factory default operating parameters. The Restore Defaults command
copies the 3M Touch Systems factory default parameters from ROM to the non-volatile
memory (NOVRAM).
If you did not connect the sensors tails correctly, you may not get the full advantage of
your touch screen size. Typically, on initial power-up, the controller will automatically
detect the correct size of the touch sensor. It will not support the touch sensor until you
reboot the controller.
The following table lists the factory defaults for the PX5nnn controller. The Restore
Defaults command is useful in situations where inadvertent commands to the controller
have rendered the sensor inoperative.
= Two ASCII characters that describe the type of 3M Touch Systems controller.
Positive response.
3M Touch Systems, Inc. Proprietary Information
3M™ Multi-Touch ASIC Controller Reference Guide