Touchscreen User Manual – Issue 1
Zytronic X-Y Controller (Serial and USB)
44
EEprom calibration storage, and the EEProm option is enabled
in this dialog then the number of calibration points available
will be restricted to those allowed by EEprom calibration.
Using 4 points or more allows the driver to automatically
determine the orientation of the touch screen and caters for
rotated video in cases where the driver has not automatically
adjusted for rotation and for these reasons it is
highly
recommended
that 4 points or more are used.
Indicates the percentage margin in from the edge of the visual
display area from which to draw the calibration points.
Specifies the number of seconds to wait for a calibration touch
before cancelling the calibration procedure.
If shown implies that calibration data can be stored in the
controllers EEPROM. If enabled the calibration data is stored
on the controller. In some case this will effect the calibration
options available. E.g. some EEPROM storage procedures will
dictate the number and position of the calibration points.
If enabled a calibration check dialog is shown at the end of the
calibration procedure. The calibration confirm button must be
selected (with the touch screen!) if the new calibration data is
to be used.
If enabled a beep will be generated on calibration touch.
Once the calibration settings have been defined as required the device can be calibrated by invoking
the calibrate option from the UPDD Console control area, as shown below:
Invoke calibration procedure for the current device.
Calibration points are shown to be touched. The ESC key can
be used to cancel calibration if required. Calibration will
timeout if calibration points are not touched within the
specific timeout period.