User`s guide

Chapter 5 - Testing Touch System Hardware and Software CARROLL TOUCH
5-6 Touch System Diagnostics (CTDIAG) User’s Guide
Figure 5-2. Touch Coordinate Test Screen (Coordinate Reporting)
The Touch Mode defines what is meant by a touch. For example, does a
touch occur when the stylus enters the active area of the touch screen or
when it leaves the active area? Select the various touch modes, as
explained in the next few paragraphs, to test that x, y coordinates are
reported properly.
Tracking Mode
In
Tracking Mode
, touches are reported as long as a stylus is moving in
the active area of the touch screen; reporting stops when the stylus is
stationary, and resumes with stylus movement. To use
Tracking Mode
,
type T.
When a stylus touches the touch screen, a small tracking box appears
beneath the touch point and the x, y coordinates of the touch point are
displayed in X = and Y = fields at the top of the screen. As a stylus
moves around the touch screen, the tracking box follows it and the
coordinates in the X = and Y = fields are updated to reflect the position
of the new touch point.
Note that there is a small, stationary bar across the upper third of the
tracking box. This indicates that coordinate reporting occurs whenever
the stylus moves, but ceases when the stylus remains stationary.
To check the entire range of touch coordinates, move a stylus along the
perimeter of the touch screen, making sure that the x coordinate