TI MDL-IDM-B Ethernet-enabled intelligent display modules (idms) Datasheet

B O A R D
D A T A
S H E E T
Ethernet-Enabled Intelligent
Display Modules (IDMs)
Ordering Information
Product No.
Description
MDL-IDM
Stellaris® Ethernet-Enabled Intelligent
Display Module (with PoE) for
Single-Unit Packaging
MDL-IDM-B
Stellaris® Ethernet-Enabled Intelligent
Display Module (with PoE) for Volume
Packaging
MDL-IDM28
Stellaris® Ethernet-Enabled Intelligent
Display Module for Single-Unit
Packaging
MDL-IDM28-B
Stellaris® Ethernet-Enabled Intelligent
Display Module for Volume Packaging
RDK-IDM
Stellaris® Ethernet-Enabled Intelligent
Display Module Reference Design Kit
(includes MDL-IDM board)
Contents
General Description. . . . . . . . . . . . . . . . . . . .
Feature Summary . . . . . . . . . . . . . . . . . . . . .
Module Block Diagram . . . . . . . . . . . . . . . . .
Operational Specifications . . . . . . . . . . . . . .
Power over Ethernet (PoE) . . . . . . . . . . . . . .
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Software Development . . . . . . . . . . . . . . . . .
Programming the MDL-IDM. . . . . . . . . . . . . .
Reference Design Kit Contents . . . . . . . . . .
Mechanical Installation . . . . . . . . . . . . . . . . .
Additional Information . . . . . . . . . . . . . . . . .
Figure 1.
1
2
3
4
5
5
5
6
6
7
8
Intelligent QVGA Touch
Panel
General Description
The Stellaris® Intelligent Display Modules (MDL-IDM and MDL-IDM28) offer a complete
graphical touch-screen user interface solution for control, automation, and instrumentation
applications. The compact design is based on a Stellaris® LM3S6918 microcontroller; a
highly integrated controller incorporating a 32-bit ARM® Cortex™-M3 core. A key feature of
the MDL-IDM is the Power over Ethernet (PoE) power system that facilitates both network
and power connections with a single RJ45 cable. The MDL-IDM28 module offers the same
features as the standard MDL-IDM, but without the Power Over Ethernet capability.
Ethernet-Enabled Intelligent Display Modules (IDMs)
1
B O A R D
D A T A
S H E E T
10/100 Ethernet connects the MDL-IDM and MDL-IDM28 to an array of networks—from
dedicated industrial networks to the internet. The example application includes source code
for an embedded web server.
Development of software for the IDM modules is simplified by using the comprehensive
Stellaris graphics library and ARM development tools from our tools partners. First-time
users should purchase the RDK-IDM Reference Design Kit which includes the touch panel
module, a documentation CD, power supply, and cables.
Refer to the RDK-IDM Quickstart Guide and RDK-IDM User’s Manual for complete
technical details on using and customizing the Intelligent Display Module.
Feature Summary
Highlighted capabilities of the MDL-IDM and MDL-IDM28 modules include:
„ Bright QVGA LCD Display with touch
„ Ethernet and serial connectivity
„ Easy to customize – full source code and design files included
„ Flexible power supply options
„ Compact size simplifies system integration
Features
The MDL-IDM and MDL-IDM28 provide the following features:
„ LCD display
– 2.8” QVGA 240 x 320 pixels
– 16-bit color
– White LED backlight
– 4-wire resistive touch panel
„ 10/100 Ethernet
– Auto MDI/MDIX
– Traffic/Link indicator LED
„ Serial communications
– Header provides TXD and RXD signals
– RS232 signal levels
– Default 115.2k,8,n,1 operation
„ Stellaris® microcontroller
– 32-bit ARM® Cortex™-M3
– 50 MHz operation
„ Memory
– 256 KB main flash memory
– 64 KB SRAM
– 168 KB image RAM
Ethernet-Enabled Intelligent Display Modules (IDMs)
2
B O A R D
D A T A
S H E E T
– microSD slot (typically 1 GB storage)
„ Power-supply options
– Power over Ethernet (IEEE 802.3af-compliant)
– 24 V DC power jack (PoE-equipped modules only)
– 5 V DC terminals (all modules)
„ Peripherals
– Four analog measurement inputs
– One relay output (1 form C/SPDT contact)
„ Software
– Example applications included
– Supports development tools from Keil, IAR, Code Sourcery, and Code Red
Technologies
– Stellaris Graphics Library
Module Block Diagram
Figure 2 shows the block diagram for the MDL-IDM and MDL-IDM28.
Figure 2. Intelligent Display Module Block Diagram
Analog
4 x ADC
Data
QVGA
LCD
Panel
LCD
Driver
+5V
Ctrl
Analog touch signals
1GB
Stellaris
LM3S6918
Microcontroller
RS232
Serial
microSD
SPCO
10/100
Ethernet
Speaker
Relay
+3.3V
3.3V
Regulator
+5V
PoE Controller
24Vdc Jack
PoE Components (not included in MDL-IDM28)
Ethernet-Enabled Intelligent Display Modules (IDMs)
3
B O A R D
D A T A
S H E E T
Operational Specifications
Table 1 shows the operating parameters for the MDL-IDM and MDL-IDM28.
Table 1.
Operating Specifications
Parameter Name
Min
Nom
Max
Unit
PoE Supply Voltage (MDL-IDM only)
38
48
55
V DC
PoE Supply Current (MDL-IDM only)
–
21
–
mA
DC Jack Supply Voltage (alternative to PoE on
MDL-IDM)
20
24
55
V DC
DC Jack Supply Current (MDL-IDM only)
–
42
–
mA
4.5
5
5.5
V DC
Terminal Block Supply Current
–
200
300
mA
PoE Isolation Voltage (MDL-IDM only)
–
–
250
V DC
Terminal Block Output Voltage
4.75
5.0
5.25
V
Terminal Block Output Current
–
–
100
mA
Operating Temperature Range
-20
–
+50
°C
Storage Temperature Range
-30
–
+70
°C
Brightness
210
220
–
Cd/m2
View Angle (V)
-10
–
+35
deg
View Angle (H)
-45
–
+45
deg
Contrast Ratio
–
–
–
–
0
–
3
V DC
-0.3
–
3.3
V DC
Relay Contact Voltage
–
–
60
V DC
Relay Contact Current
–
–
250
mA
–
–
120
Kbps
Transmitter Voltage Swing
±5.0
±5.4
–
Vdc
Input Threshold Low
0.6
1.2
–
–
Input Threshold High
–
1.5
2.4
–
Power Supply
Terminal Block Supply Voltage (alternative to PoE)
Auxiliary Power Output (PoE modules only)
Environment
Display
Peripherals
Analog Input Range
Analog Input – Electrical Limits
RS232
Data Rate
Ethernet-Enabled Intelligent Display Modules (IDMs)
4
B O A R D
D A T A
S H E E T
Power over Ethernet (PoE)
The MDL-IDM identifies itself as a Class 1 Powered Device. The IEEE 802.af specification
defines Class 1 devices as those that draw between 0.44 W and 3.84 W.
If a PoE-equipped network switch or hub is not available, the MDL-IDM may be powered
either from a 24 Vdc power source or from a 5 Vdc power source. In all cases, the power
supply must be regulated within the electrical limits listed in the specification table.
When powered using PoE or a 24 V supply, the MDL-IDM is able to supply 5 V power to
external devices such as sensors or signal conditioning circuits.
Wiring
In many applications, only a single RJ45 cable is required for MDL-IDM and MDL-IDM28
operation. Figure 3 shows all possible electrical connections, including RS232, analog
inputs, and relay contacts. The actual functionality of the peripheral connections is
determined by the application software.
Figure 3. Connection Diagram
Relay
Contacts
3
2
1
COM
NC
NO
GND
RXD
TXD
RS232
3
2
1
1
2
3
4
5
6
Analog
Inputs
AIN0
AIN1
AIN2
AIN3
GND
+5.0V
SD Card
+5V Input
(MDL-IDM28)
10/100
Ethernet
1GB
+24V
GND
24Vdc (opt)
Software Development
The MDL-IDM and MDL-IDM28 modules ship with a factory-programmed example
application. This application must be replaced with a program specific to the end product.
Development requires the use of a compiler capable of generating code for an
ARM® Cortex™-M3 processor. Visit www.luminarymicro.com to download evaluation
versions of suitable development tools.
Ethernet-Enabled Intelligent Display Modules (IDMs)
5
B O A R D
D A T A
S H E E T
The Stellaris Graphics Library accelerates software development by providing a range of
display-related extensions to the standard Peripheral Driver Library. The Graphics Library
includes widgets, low-level drawing primitives, and display drivers.
Graphics Library widgets encapsulate the ability to render a GUI element, detect if a
touchscreen press occurred within its bounds, and react to presses. Widgets may be used
in a hierarchical manner to provide groups of associated widgets, such as radio buttons.
Examples of widgets include check boxes, buttons, and images.
Drawing primitives are elementary geometric items. The Graphics Library includes
primitives such as lines, circles, filled circles, rectangles, and fonts. A selection of pre-built
fonts is included and additional user fonts may be added to the library.
The display driver provides low-level code for initializing the display controller and a method
for setting pixels. Graphics Library includes a display driver optimized for the RDK-IDM
LCD panel and therefore, users do not need low-level knowledge of LCD-driver operation.
Refer to the Stellaris Graphics Library Reference Manual for full details.
Programming the MDL-IDM and MDL-IDM28
Once an application has been compiled and linked to a binary file, it can be loaded into the
MDL-IDM and MDL-IDM28 by several different methods:
„ Over Ethernet using the Stellaris Ethernet boot loader
„ Over the RS232 serial port using the Stellaris serial boot loader
„ Using the JTAG or SWD port and an In-circuit Debug Interface (ICDI)
All three methods are supported by the LMFlash utility included on the software and
documentation CD and available from the www.luminarymicro.com web site.
The IDM Reference Design Kit includes an adaptor to convert the fine-pitch, 10-way debug
header to the common 20-pin ARM debug header.
Figure 4. Fine-Pitch Debug Header Pin Assignments
1 2
TMS /SWDIO
TCK/SWCLK
TDO
TDI
SRSTn
+3.3V
GND
GND
n/c
GND
9 10
Reference Design Kit Contents
The RDK-IDM RDK includes the following:
„ MDL-IDM Intelligent QVGA Touch Panel with Ethernet
„ 24 Vdc power supply
– Provides power if PoE power source is unavailable
Ethernet-Enabled Intelligent Display Modules (IDMs)
6
B O A R D
D A T A
S H E E T
– Includes plugs for US, UK, Europe, and Australia
„ Ethernet cable
„ Debug adapter
– Fine pitch to 0.1” standard header
„ Documentation and source code CD
The RDK-IDM Reference Design Kit can be used for developing applications for both
PoE-equipped and non-PoE-equipped IDM applications.
Mechanical Installation
The MDL-IDM and MDL-IDM28 mount to a front panel mounting using four screws and
appropriate stand-offs.
Figure 5. Wiring Diagram
2.58
Ø 0.125
1.81
2.35
2.85
2.58
Reset switch location
LUMINARY MICRO
0.20
2.28
1.97
0.06
0.25
0.53
0.625
Standoffs installed
in RDK version only
Extent of IDM
components
Ethernet-Enabled Intelligent Display Modules (IDMs)
7
B O A R D
D A T A
S H E E T
Additional Information
The following documents are available for download at www.luminarymicro.com:
„ Stellaris® Ethernet-Enabled Intelligent Display Module (IDM) Reference Design Kit
User’s Manual, document order number RDK-IDM
„ Stellaris Peripheral Driver Library User’s Guide, document order number SW-DRL-UG
Ethernet-Enabled Intelligent Display Modules (IDMs)
8
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RDK-IDM-DS-03
August 10, 2009
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