PICASO-OGM Datasheet, PDF (10/22 Pages) List of Unclassifed Manufacturers – OEM Graphics Module

4D SYSTEMS
6. Module Features
The PICASO OGM module is designed to
accommodate most OEM applications. Some of
the main features of the module are listed below.
6.1. PICASO Processor
The module is designed around the PICASO
Graphics Controller from 4D-Labs.
The PICASO is a smart Controller and the interface
to the TFT- LCD displays is almost plug-n-play.
All of the data and control signals are provided by
the chip to interface directly to the display.
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:
“PICASO-Processor-Datasheet-REVx.pdf”
6.2. Audio
Audio playback support in the PICASO Processor
enables the PICASO OGM module to play audio
WAV files stored in the micro-SD memory card. A
raw PWM is output by the Processor (and OGM
Module itself) which can then be filtered with a
simple circuit, and amplified if required.
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, touch recognition,
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:
“PICASO-4DGL-Internal-Functions.pdf”
PICASO OGM Module
6.3. SD/SDHC Memory Cards
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).
6.4. FAT16
The PICASO OGM Module uses off the shelf
standard SDHC/SD/micro-SD memory cards with
up to 2GB 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 card is now ready to be used
in the PICASO based application.
The PICASO 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.
© 2013 4D SYSTEMS
Page 10 of 22
www.4dsystems.com.au