TouchWare for Windows User's Guide - Touch Screens Inc.

Chapter 3 ThruGlass Touchscreen Configuration 53To set up multiple ThruGlass touchscreens, you follow the same process asyou do to set up multiple serial touchscreens. See Appendix A forinstructions.Summary of Firmware CommandsThruGlass controllers use an enhanced set of the commands detailed in thefollowing tables. MicroTouch recommends you use the commands listed inthe following table.Caution: If you are not familiar with the use of firmware commands, do not usethem. Executing some commands may alter the performance of your touchscreen orrender it inoperable.Table 2: Firmware Commands Recommended for DevelopmentCommand Name ASCII Code DescriptionCalibrate Extended CX Initiates an interactive, two-point calibration.Format Tablet FT Outputs the X, Y touch coordinate data in a five-bytepacket.Mode Stream MS Sends a continuous stream of X, Y coordinate data whenyou touch the screen.Null Command Z Queries the controller and waits for a response.Output Identity OI Identifies the controller type and the firmware version.Reset R Initializes the hardware and the firmware, causes thecontroller to stop sending data, and recalculates theenvironmental conditions.Restore Defaults RD Returns the controller to the factory default operatingparameters.Unit Type UT Identifies the type of touchscreen controller connected toyour system.