Usage

LX_GTF provides a simple user interface, allowing users to quickly and easily generate an example customization file.  The interface exposes seven options, as explained below:

 

Panel Width

This option specifies the number of active pixels per line for the TFT panel.

Panel Height

This option specifies the number of active lines in the TFT panel.

Panel Refresh Rate

The panel refresh rate indicates the number of times per second the TFT is refreshed.

Panel Bus Width

This option specifies the number of pins connected between the GeodeLX TFT interface and the TFT panel.  The GeodeLX exposes 24 bits of digital RGB data to the TFT pins, 8 bits per color.  However, many panels only use 5,6 or 7 bits per color.  Setting this option to anything other than the default enables TFT dithering in the GeodeLX hardware to compensate for the reduced number of colors.

Simultaneous CRT/TFT Display

When this checkbox is checked, the driver will be configured to enable simultaneous display with an attached CRT.  This will take effect after the next reboot after the driver is installed.  Note that this checkbox does not enable or disable simultaneous CRT capabilities.  It merely programs the initial state.  The state can be changed in the display drivers at any time after the driver is installed.

Negative Hsync Polarity

When this option is checked, the hsync signal will be normally high and set low during the hsync interval.  When unchecked, the hsync signal will be normally low and set high during the hsync interval.  The majority of panels will operate correctly with this option checked.

Negative Vsync Polarity

When this option is checked, the vsync signal will be normally high and set low during the vsync interval.  When unchecked, the vsync signal will be normally low and set high during the vsync interval.  The majority of panels will operate correctly with this option checked.

Generate Timings

Hitting this button generates text that can be directly cut and paste into a customization text file.