Firmware Commands - 3M Touch Screen Controller RX142 Reference Manual

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In this chapter, responses are shown as a string of ASCII characters consisting of a
header, the response, and a terminator as follows:
<SOH>Response<CR>
Controller Initialization
To initialize the RX142 controller for new development, 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.

Firmware Commands

Developers may use this information when writing touch applications, developing custom
drivers or touch configurations, or testing their touch systems. Developers can use
firmware commands to initialize the controller, select operating modes, specify data
formats, and execute diagnostic functions.
Most touch system users do not have to use firmware commands to use their touch
systems. For example, users can use MicroTouch™ software or equivalent software to
calibrate the sensor or to determine the controller type and firmware version.
Note: This document assumes you are familiar with firmware commands and how to use
them. Executing some commands may alter the performance of your sensor and render it
inoperable. You should be aware of the results before executing any firmware commands.
To optimize the performance of the RX142 touch controller and simplify the
development of custom drivers, 3M Touch Systems recommends you use only the
commands listed in the following table for current development.
Note: When you enter commands in terminal mode, precede each command with
<CTRL> A to enter the start of header.
3M™ MicroTouch™ Controller RX142 Reference Guide
3M Touch Systems, Inc. Proprietary Information