S1D13704 Epson Electronics America, Inc., S1D13704 Datasheet - Page 267

• Manufacturer Part Number: S1D13704
• Description: LCD Controller
• Manufacturer: Epson Electronics America, Inc.

Epson Research and Development
Vancouver Design Center
Configuration
Compile Switches
Windows® CE 3.x Display Drivers
Issue Date: 01/05/24
WINCEVER
EnablePreferVmem
EpsonMessages
DEBUG_MONITOR
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.
There are several switches, specific to the S1D13704 display driver, which affect the
display driver.
The switches are added or removed from the compile options in the file SOURCES.
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 2.11. The S1D display driver may test against this option to support different
WinCE version-specific features.
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.
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.
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.
This option should remain disabled unless you are performing specific debugging tasks that
require the debug monitor.
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