Epson S1D13705 technical manual Mode File

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Mode File

A second variable which will affect the finished display driver is the register configurations contained in the mode file.

The MODE tables (contained in files MODE0.H, MODE1.H, MODE2.H . . .) contain register information to control the desired display mode. The MODE tables must be generated by the configuration program 13705CFG.EXE. The display driver comes with example MODE tables.

By default, only MODE0.H is used by the display driver. New mode tables can be created using the 13705CFG program. Edit the #include section of MODE.H to add the new mode table.

If you only support a single display mode, you do not need to add any information to the WinCE registry. If, however, you support more that one display mode, you should create registry values (see below) that will establish the initial display mode. If your display driver contains multiple mode tables, and if you do not add any registry values, the display driver will default to the first mode table in your list.

To select which display mode the display driver should use upon boot, add the following lines to your PLATFORM.REG file:

[HKEY_LOCAL_MACHINE\Drivers\Display\S1D13705]

“Width”=dword:140

“Height”=dword:F0

“Bpp”=dword:8

“Rotation”=dword:0

“RefreshRate”=dword:3C

“Flags”=dword:1

Note that all dword values are in hexadecimal, therefore 140h = 320, F0h = 240, and 3Ch

=60. The value for “Flags” should be 1 (LCD). When the display driver starts, it will read these values in the registry and attempt to match a mode table against them. All values must be present and valid for a match to occur, otherwise the display driver will default to the FIRST mode table in your list.

A WinCE desktop application (or control panel applet) can change these registry values, and the display driver will select a different mode upon warmboot. This allows the display driver to support different display configurations and/or orientations. An example appli- cation that controls these registry values will be made available upon the next release of the display driver; preliminary alpha code is available by special request.

S1D13705	Windows® CE 2.x Display Drivers
X27A-E-001-03	Issue Date: 01/06/07