Psion Teklogix 8590 Automobile Accessories User Manual


 
8580/8590 Vehicle-Mount Computer User Manual 115
Chapter 8: Internal Devices
Touchscreen
8.5 Touchscreen
An optional resistive touchscreen is available for the 8580/8590. The touchscreen
can be operated with or without a keyboard and is compatible with a mouse.
Important: If the touch controller is configured as PS/2 touch (via jumpers) a
mouse cannot be connected to the external PS/2 mouse.
Note: Of course it is always possible to use a serial or a USB mouse at the same
time as the touchscreen.
Explanation Of Functions
A touchscreen controller for resistive touchscreens is integrated into the
motherboard to analyze the sensor line state changes caused by touching. The
touchscreen controller calculates and formats this data and then sends it to the
touchscreen software driver via the COM4 port or optionally the mouse-PS/2 port
(interrupt-controlled). The driver converts the data into pointer commands.
The analog touchscreen controller used for analysis provides a resolution of 4096 x
4096 pixels (12-bit horizontal and vertical).
4-wire touchscreens (10.4" front panel) and also 8-wire touchscreens (12.1" front
panel) are supported.
Resources
By default the resources for the touchscreen controller are the same as for the
COM4 port. If the appropriate configuration exists, these may also be the same as
for the PS/2 mouse. With the exception of ensuring that the jumpers are set correctly
J6 (open = Touch active) and J13 (closed=PS/2, open=COM4), no further
configuration is required.
8.5.1 Touch (Serial) For Windows XP & XP Embedded
8.5.1.1 Installation
The touch drivers to be used can, by default, be found on the Compact Flash or hard
drive under Util/atouch/<verNR>. In addition you will find the drivers on the
included driver CD.
1. Open the corresponding folder and run Setup.exe.
2. In the Welcome dialog, tap Next.