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Epson Research and Development Page 9
Vancouver Design Center
Windows® CE 3.x Display Drivers S1D13708
Issue Date: 01/11/14 X39A-E-006-01
Configuration
There are several issues to consider when configuring the display driver. The issues cover
debugging support, register initialization values and memory allocation. Each of these
issues is discussed in the following sections.
Compile Switches
There are several switches, specific to the S1D13708 display driver, which affect the
display driver.
The switches are added or removed from the compile switches in the file SOURCES.
WINCEVER
This option is automatically set to the numerical version of WinCE for version 2.12 or later.
If the environment variable, _WINCEOSVER is not defined, then WINCEVER will
default to 2.11. The S1D13708 display driver may test against this option to support
different WinCE version-specific features.
EnablePreferVmem
This option enables the use of off-screen video memory. When this option is enabled,
WinCE can optimize some BLT operations by using off-screen video memory to store
images. You may need to disable this option if your off-screen video memory is limited.
ENABLE_CLOCK_CHIP
This option is used to enable support for the ICD2061A clock generator. This clock chip is
used on the S5U13708B00C evaluation board. The S1D13708 display drivers can program
the clock chip to support the frequencies required in the MODE tables.
If you are not using the S5U13708B00C evaluation adapter, you should disable this option.
EpsonMessages
This debugging option enables the display of EPSON-specific debug messages. These
debug message are sent to the serial debugging port. This option should be disabled unless
you are debugging the display driver, as they will significantly impact the performance of
the display driver.
DEBUG_MONITOR
This option enables the use of the debug monitor. The debug monitor can be invoked when
the display driver is first loaded and can be used to view registers, and perform a few
debugging tasks. The debug monitor is still under development and is UNTESTED.