User`s guide

Chapter 4 Using the Microcal Diagnostic Utility 109
How Terminal Mode Displays Characters
Carriage returns and line feed characters are not displayed but will
move the cursor. Carriage returns also cause a line feed.
Characters with an ASCII value of less than 32 or greater than 127
appear as characters in the IBM-PC extended character set. It may be
useful to obtain a copy of the IBM character set.
How Terminal Mode Displays Touch Coordinates
Touching the screen when in terminal emulation mode results in the
display of the X, Y screen position.
The touchscreen controllers output data in format tablet (binary).
However, displaying the X, Y screen position as binary output is not
useful. Therefore, the Microcal Terminal Emulation program
automatically converts the binary data to decimal format and displays
the X, Y coordinate using a scale of 0 – 999.
For a properly calibrated controller, the lower left corner of the
touchscreen is at [0, 0]. The upper right corner of the touchscreen is
at [999, 999]. The following illustration shows the X, Y position
returned when you touch the corners of the screen.
Some earlier touchscreen controllers support several data formats. If
you are using these controllers, send a Format Decimal command to
change the controller’s output format. After the controller is in
Format Decimal, touching the screen displays the X, Y coordinate
using a scale of 0 – 999 as described above.