3M M2256PW manual Name Command, Null Command, Output Identity, Soft Reset

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36	3M™ Multi-touch Display M2256PW User Guide

Description: This is the default mode of operation at power up. Touch reports include touchdown and liftoff events as well as continuing touches.

Name Command

Syntax: <SOH>NM<CR>

Response:

<SOH>0<CR> Positive response.

Description: Returns a name string

Null Command

Syntax:	<SOH>Z<CR>
Response:	<SOH>0<CR> Positive response.
Description:	Queries the controller and waits for a response.
	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	= Two ASCII characters that describe the type of 3M Touch Systems controller.
	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. .

Soft Reset

Syntax:	<SOH>R<CR>
Response:	<SOH>0<CR> Positive response.
Description:	Initializes the hardware and the firmware, causes the controller to stop sending data, and
	recalculates the environmental conditions (for example, stray and offset values). The
	Reset command also cancels the Calibrate command and returns the controller to normal
	operation.

3M Touch Systems, Inc. Proprietary Information – 37531 Rev D

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Contents 3M Touch Systems, Inc. Proprietary Information 37531 Rev D 3M Multi-touch Display M2256PW User Guide Contents Appendix a 3M PX USB Controller Communications Appendix B 3M PX Serial Controller CommunicationsAppendix C Regulatory Information Important Safety Information IntroductionOverview Intended UseExplanation of Signal Word Consequences Important Notes Maintaining Your Touch DisplayTouch Sensor Care and Cleaning 3M Touch Systems Support ServicesContact 3M Touch Systems Setting up Your M2256PW Multi-touch Display System RequirementsUnpacking Your Touch Display Cables Included with Your M2256PW Multi-touch DisplayConnecting the Touch Display Testing the M2256PW Multi-touch DisplayArm Mounting Option Using the Standard Controls for the Video Card Applicable Display Mode and Refresh Rate Refresh Rate HzVideo Card Requirements Supported Video Display Modes and Refresh RatesConfiguring the Display Settings Multimedia FeaturesAccess to the Video Controls Menu/Select Down Up Auto/Exit Power LEDAdjusting the M2256PW Video Display Choices DescriptionAudio Tools Enabling Your M2256PW Multi-touch Display Windows 7 USB CompatibilityAll Other Platforms Multitouch Application SupportInstalling 3M MicroTouch Software Video Alignment3M Multi-touch Display M2256PW User Guide 3M PX USB Controller Communications Overview of USB Firmware CommunicationsCommunication Basics Command Set Set Feature CalibrationReceiving Reports from the Controller HID Class RequestsCalibration Setup Stage Offset Field Size Value Description Calibration Response Command Status Byte DescriptionDetermining Target Areas Data Stage Offset Field Size Value DescriptionGet Feature GetStatus Get Feature GetMaxCount Power On Check Bit Fields Bit Number DescriptionValid Command Status Field Entries Response Description Setup Stage Offset Field Size Value DescriptionSet Feature Reset Reset Setup Stage Offset Field Size Value DescriptionReset Data Stage Offset Field Size Value Description Set Feature -Restore Defaults Coordinate Data MultiTouch Digitizer mode Async ReportAsynchronous Reports Offset Field Size Value DescriptionTouch Report Structure Offset Field Value DescriptionOverview of Firmware Commands 3M PX Serial Controller CommunicationsController Default Settings Operating ModeCommunicating with the Controller Communication ParametersSending Commands to the Controller Receiving Responses from the ControllerFirmware Commands Controller InitializationCommand Code Description CalibrateMDU SOH CxcrGuidelines for Calibrate Command Calibrate ProcedureMode Down Up Mode InactiveMode Stream Get CopyrightName Command Null CommandSoft Reset Output IdentityRestore Defaults Operating Parameter DefaultUnit Type SOH RdcrTouch Data Format Bit DescriptionData Sequence Bits Data Sequence Bits Regulatory Information Regulatory Agency ApprovalsFCC-B FCC Warning CE Conformity for Europe