Sonic Alert 2.8 User Manual
34
7
Configuration Notes
7.1
Display configuration
The Neon
R
supports a variety of LCD panels. The following section de-
scribes the process of configuring the board for a known, currently supported
display panel as well as a
display panel as well as a
utility command for testing settings
on a new panel.
If you know the type of panel at compile time, you can place a selection
from the list below in the
configuration file include/configs/neon.h.
The CONFIG EXTRA ENV SETTINGS macro is used to define a compile-time
choice. If you are using EEPROM to store environment settings, these can
be saved in the environment as well as described below.
choice. If you are using EEPROM to store environment settings, these can
be saved in the environment as well as described below.
Name
Resolution
Description
qvga portrait
240 x 320
Hitachi Quarter VGA 3.5” panel
hitachi qvga
320 x 240
Hitachi High-Brightness Quarter VGA
sharp qvga
320 x 240
Sharp Quarter VGA
hitachi hvga
640 x 240
Hitachi Half VGA
sharp vga
640 x 480
Sharp 10.4 inch VGA
hitachi wvga
800 x 480
Hitachi Half VGA
crt1024x768
1024 x 768
HP SVGA
For example:
#define CONFIG_EXTRA_ENV_SETTINGS "panel=hitachi_hvga" "\0"
Note that this is automatically done as a part of the make neon config
step.
The boot loader settings for the LCD panel will carry through to the
Linux and Windows CE drivers.
If you’re using the Neon
R
with a new panel, you’ll need to determine
and define the following fields for the panel.
December 28, 2005
Revision 2.8