3M Touch Screen Controller SX112 Reference Manual page 17

3M™ MicroTouch™ Controller SX112 Reference Guide
To optimize the performance of the touch controller and simplify the development of
custom drivers, 3M Touch Systems recommends you use the commands listed in Table 5
for current development. Using these commands ensures compatibility with all 3M™
MicroTouch™ controllers.
Note: When you enter commands in terminal mode, precede each command with
<CTRL> A to enter the start of header.
Table 5 Firmware Commands for SX112 Controller Development
Command
Calibrate
Extended
Calibrate
Raw
Diagnostic
Command
Finger Only
Format Raw
Format
Tablet
Mode
Stream
Name
Null
Command
Output
Identity
Parameter
Set
Pen or Finger
Pen Only
Reset
Restore
Defaults
Unit Type
Code Description
CX Initiates an interactive 2-point calibration.
CR Collects the raw X and Y coordinates before normal scaling,
linearization, and filtering process.
DC Requests that the controller check for sensor failures such as
broken corners, broken wires, etc.
FO The controller disables the pen and only recognizes finger
touch on the sensor.
FR Returns the signal level (amount of touch) of each of the
four sensor corners in digital format.
FT Outputs the X/Y touch coordinate data in a five-byte packet.
Preferred for current development.
MS Sends a continuous stream of X/Y coordinate data when you
touch the sensor.
NM Returns a controller identifier string.
Z Queries the controller and waits for a response.
OI Identifies the controller type and the firmware version.
Ppds[b] Lets you adjust the communication parameters (parity, data
bits, and stop bits) of the controller.
PF The controller recognizes both pen and finger touch. This is
the default setting.
PO The controller is set to only recognize input from the pen
and ignores any finger contact on the touch sensor.
R Initializes the hardware and the firmware, causes the
controller to stop sending data, and recalculates the
environmental conditions.
RD Returns the controller to the factory default operating
parameters. Note: the serial port is reset to N81 format tablet
and 2-point calibration is lost.
UT Identifies the touch controller on your system.
3M Touch Systems, Inc. Proprietary Information
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