Datasheet

4D SYSTEMS uLCD-220RD Display Module
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uLCD-220RD Display Module
Powerful graphics, text, image, animation and
countless more features are built right inside the
chip.
The data sheet for the processor is available from
the http://www.4dsystems.com.au website:
“DIABLO16-Processor-Datasheet-REVx.pdf”
Audio 6.3.
Audio playback support in the DIABLO16 Processor
enables the uLCD-220RD module to play audio
WAV files stored in the micro-SD memory card. An
external amplifier is required, as the output of the
uLCD-220RD is a filtered PWM only, with separate
amplifier enable signal. A simple instruction
enables the user to play/pause/stop audio files
while continuing the execution of the user
application code, such as display updates,
communications, etc. The audio system also allows
real time pitch change of audio samples.
For a complete list of audio commands please
refer to the separate document titled:
“DIABLO16-4DGL-Internal-Functions.pdf”
SD/SDHC Memory Cards 6.4.
The module supports micro-SD memory cards via
the on-board micro-SD
connector. The memory
card is used for all
multimedia file retrieval
such as images,
animations and movie
clips. The memory card
can also be used as general purpose storage for
data logging applications. Support is available for
off the shelf micro-SD and high capacity HC
memory cards (4GB and above).
Any cards larger than 4GB need to be partitioned
so the first partition is FAT16. See RMPET tool in
the Workshop4 IDE.
Note: A microSD card capable of SPI is a
requirement for all 4D Systems’ display modules
powered by Goldelox, Picaso or Diablo16
Processors. If a non-SPI compatible card is used, it
will simply fail to mount, or may cause
intermittent issues resulting in lock ups and
crashing of the application. Please refer to the 4D
Systems website for microSD cards offered by 4D
Systems.
FAT16 6.5.
The uLCD-220RD Module uses off the shelf
standard SDHC/SD/micro-SD memory cards (SPI
Compatible Only) with up to 4GB capacity usable
with FAT16 formatting. For any FAT file related
operations, before the memory card can be used it
must first be formatted with FAT16 option. The
formatting of the card can be done on any PC
system with a card reader. Select the appropriate
drive and choose the FAT16 (or just FAT in some
systems) option when formatting.
The DIABLO16 Processor also supports high
capacity HC memory cards (4GB and above). The
available capacity of SD-HC cards varies according
to the way the card is partitioned and the
commands used to access it.
The FAT partition is always first (if it exists) and can
be up to the maximum size permitted by FAT16.
Windows 7 will format FAT16 up to 4GB. Windows
XP will format FAT16 up to 2GB and the Windows
XP command prompt will format FAT16 up to 4GB.
7. Display Precautions
• Avoid having to display the same image/object
on the screen for lengthy periods of time. This will
cause a burn-in which is a common problem with
all types of display technologies. Blank the screen
after a while or dim it very low by adjusting the
contrast. Better still; implement a screen saver
feature.
• Moisture and water can damage the display.
Moisture on the surface of a powered display will
cause the electrodes to corrode. Wipe off any
moisture gently or let the display dry before usage.
• Dirt from fingerprint oil and fat can easily stain
the surface of the display. Gently wipe off any
stains with a soft lint-free cloth.
• The performance of the display will degrade
under high temperature and humidity. Avoid such
conditions when storing.
• Do not tamper with the display flex cable that is
connected to the control board. This may affect
the connection between the display and the
driving circuitry and cause failure.
• Displays are susceptible to mechanical shock and
any force exerted on the module may result in
deformed zebra stripes, a cracked display cell and
broken backlight