Specifications

E271-2201 Controller 119
X-axis for example, just specify a Sxhigh that is less than Sxlow, such as 80 to
1.
4. If you prefer the default origin in the lower left for example, just make the low
calibration point be in the lower left, and the high in the upper right. As you
can see, the formula allows any origin, axis orientation and scaling,
independent of the touchscreen and controller.
5. A third calibration point may be added to detect swapped axes. If the
coordinates of the third corner change in what should be the constant axis, then
the axes are swapped. See EXAMPLE2.C, page 64.