4d Systems 2.4" TFT Intelligent Display SK-24PTU SK-24PTU Data Sheet
Product codes
SK-24PTU
4D SYSTEMS µLCD-24PTU
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5. PmmC/Firmware Programming
The PICASO processor used in the μLCD-24PTU
module is a custom graphics processor. All
functionality including the high level commands are
built into the chip. This chip level configuration is
available as a Firmware/PmmC (Personality-
module-micro-Code) file.
A PmmC file contains all of the low level micro-code
information (analogy of that of a soft silicon) which
define the characteristics and functionality of the
device. The ability of programming the device with
a PmmC file provides an extremely flexible method
of customising as well as upgrading it with future
enhancements.
A PmmC file can only be programmed into the
device via its COM0 serial port. Figure below
provides a typical implementation for the PmmC
programming interface.
The PmmC file is programmed into the device with
the aid of Workshop 4, the 4D Systems IDE software
(See Section 11). To provide a link between the PC
and the ICSP interface, a specific 4D Programming
Cable is required and is available from 4D Systems.
Using a non-4D programming interface could
damage your display, and void your Warranty.
Please refer to section 8.1 for more information on
4D programming interfaces.
6. Module Features
The μLCD-24PTU module is designed to
accommodate most applications. Some of the main
features of the module are listed below.
Display – 2.4” TFT Touch Screen
The μLCD-24PTU module is equipped with a 2.4”
TFT display. Details of the display are listed below:
• Screen Size: 2.4” diagonal
• Resolution: 240 x 320
• Integrated 4-Wire Resistive Touch Screen
• Screen Dimensions: 42.70 x 60.25 x 3.70mm
• Viewing Area: 36.72 x 48.96mm
• Pixel Pitch: 0.153 x 0.153mm
• Brightness: 150cd/m2
• Contrast Ratio: 250:1
• Viewing Angle Above Centre: 20 degrees
• Viewing Angle Below Centre: 35 degrees
• Viewing Angle Left of Centre: 40 degrees
• Viewing Angle Right of Centre: 40 degrees
• Viewing Direction: 6 O'clock
• 4 Parallel LEDs for Backlighting
Note: The Displays used are the highest rated
‘Grade A’ Displays, which allow for 0-4 defective
pixels. A defective pixel could be solid Black (Dead),
White, Red, Green or Blue.
‘Grade A’ Displays, which allow for 0-4 defective
pixels. A defective pixel could be solid Black (Dead),
White, Red, Green or Blue.
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.
4D Programming
Cable