Digi Connect ME Application guide

DigiConnectME®& 
DigiConnect®Wi‐ME
DigiConnectME®9210
HardwareReference
90000897_H
1/6/2010
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Digi International Inc. 2009. All Rights Reserved.
The Digi logo is a registered trademark of Digi International, Inc.
Connectware and Digi Connect ME and Digi Connect Wi-ME are trademarks of Digi International, Inc.
NetSilicon, NET+Works, NET+OS, and NET+ are trademarks of NetSilicon, Inc.
All other trademarks mentioned in this document are the property of their respective owners.
Information in this document is subject to change without notice and does not represent a commitment on the part
of Digi International.
Digi provides this document “as is,” without warranty of any kind, either expressed or implied, including, but not
limited to, the implied warranties of fitness or merchantability for a particular purpose. Digi may make
improvements and/or changes in this manual or in the product(s) and/or the program(s) described in this manual at
any time.
This product could include technical inaccuracies or typographical errors. Changes are periodically made to the
information herein; these changes may be incorporated in new editions of the publication.
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Contents
About This Document ................................................................................................................5
Related Documentation....................................................................................................5
Support Information.........................................................................................................5
Chapter 1: About the Digi Connect ME Family of Embedded Modules.........................6
Overview..........................................................................................................................6
Types of Modules.............................................................................................................7
Connectors: Power and Device Interface.........................................................................9
Connectors: Ethernet Interface.......................................................................................11
Connectors: Antenna......................................................................................................13
Module LEDs.................................................................................................................13
Chapter 2: About the Development Board .......................................................................16
Overview........................................................................................................................16
Basic Description ...........................................................................................................17
Port Descriptions............................................................................................................19
Connectors and Blocks...................................................................................................22
Switches and Push Buttons.............................................................................................26
Development Board LEDs .............................................................................................28
Power Jack P15 ..............................................................................................................30
Test Points......................................................................................................................31
Chapter 3: Programming Considerations.........................................................................32
Overview........................................................................................................................32
Module Pinout................................................................................................................33
LEDs...............................................................................................................................35
Reset...............................................................................................................................35
Memory..........................................................................................................................36
Appendix A Module Specifications....................................................................................38
Network Interface...........................................................................................................38
Serial Interface ...............................................................................................................38
Data Rates (bps) .............................................................................................................39
Flow Control Options.....................................................................................................39
DC Characteristics..........................................................................................................39
Power Management (Connect ME-9210 only) ..............................................................41
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Thermal Specifications .................................................................................................. 42
Mechanical..................................................................................................................... 43
Bar Code ........................................................................................................................44
Dimensions..................................................................................................................... 44
Recommended PCB Layout........................................................................................... 49
Antenna Information...................................................................................................... 51
RF Exposure Statement.................................................................................................. 54
Safety Statements........................................................................................................... 54
Appendix B Certifications.................................................................................................. 56
FCC Part 15 Class B ...................................................................................................... 56
Industry Canada ............................................................................................................. 57
Declaration of Conformity............................................................................................. 57
International EMC Standards......................................................................................... 58
Appendix C Sample Application: PoE Power Supply ..................................................... 60
Appendix D Sample Application: TTL Signals to EIA-232 ............................................ 62
Appendix E Change Log .................................................................................................... 64
Revision H......................................................................................................................64
Revision G......................................................................................................................64
Revision F......................................................................................................................64
Revision E......................................................................................................................65
Revision D......................................................................................................................65
Revision C......................................................................................................................65
Revision B......................................................................................................................65
Revision 90000631_G>90000897_A ............................................................................ 65
Revision G......................................................................................................................65
Revision F......................................................................................................................66
Revision E......................................................................................................................66
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••••••••••••••••••••••••••••••••••••••••••••••••••••••••
About This Document
Scope of the Reference Manual
The purpose of this document is to enable developers to integrate the Digi Connect ME,
Digi connect ME 9210, or Digi Connect Wi-ME embedded modules with other devices,
enabling these devices to make use of the module’s rich networking features.
Note: Unless mentioned specifically by name, the products will be referred to as the
embedded modules or modules. Individual naming is used to differentiate
product specific features. Unless noted otherwise, all Digi Connect ME
related technical information provided in this document also applies to
the Digi Connect ME 9210 module.
Related Documentation
See the NS7520 Hardware Reference for information on the NS7520 chip.
See the NS9210 Hardware Reference for information on the NS9210 chip.
Support Information
To get help with a question or technical problem or make comments and recommendations
about Digi products and documentation, use the following contact information.
General Customer Service and Support
Digi International
11001 Bren Road East
Minnetonka, MN 55343
U.S.A.
United States: 1 877-912-3444
Other Locations: 1 952-912-3444
www.digi.com/support/eservice/
eservicelogin.jsp
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About the Digi Connect ME
Family of Embedded
Modules
CHAPTER 1
Overview
The embedded modules provide fully transparent device connectivity over industry-
standard Ethernet connections and allows both equipment manufacturers and systems
integrators to network-enable products at a fraction of the time and cost required to develop
a custom solution. It is a highly flexible and compact single component solution with a
serial port, GPIO, and a robust on-board TCP/IP stack and 10/100 BASE-T Ethernet
support or wireless interface.
Built on Digi's leading 32-bit NET+ARM processor technology, the Digi Connect ME
family of embedded modules offer serial-to-Ethernet functionality through Digi’s Plug-
and-Play Firmware firmware, or the freedom and flexibility of professional embedded
software development provided by the easy-to-use, cost-effective and complete Digi
JumpStart Kits™ for NET+OS and Microsoft.NET Micro Framework.
The Digi Connect ME and Digi Connect Wi-ME modules are utilizing the powerful Digi
NS7520 processor with an ARM7TDMI core running at 55 MHz. They provide integrated
wired or wireless networking and serial device connectivity in a compact connector-style
form factor. The Digi Connect ME 9210 module is the latest, fully form factor and pin
compatible, member of the Digi Connect ME family providing 75 MHz ARM9 core
performance based on the Digi NS9210 processor. In addition to higher performance with
integrated Ethernet connectivity, the Digi Connect ME 9210 offers higher serial data rates,
SPI functionality, as well as the unique option of application specific interfaces using the
programmable FIMs on the NS9210.
From medical systems to building control and industrial automation, in virtually any
application where embedded device connectivity over Ethernet or wireless connectivity is
needed, embedded modules are the ideal choice, delivering high-performance functionality.
Note: Unless mentioned specifically by name, the products will be referred to as the
embedded modules or modules. Individual naming is used to differentiate product
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specific features. Similarly, information about the Connect ME applies to the
Connect ME 9210 as well unless stated otherwise.
This chapter provides information about the modules hardware and contains the following
topics:
"Types of Modules" on page 7
"Connectors: Antenna" on page 13
"Connectors: Ethernet Interface" on page 11
"Module LEDs" on page 13
Types of Modules
There are two types of modules. One module utilizes Digi Plug-and-Play Firmware, while
the second is customizable with the option to develop a firmware application in.NET MF or
NET+OS. If you are developing your firmware application in NET+OS, you will be using a
module with a JTAG interface.
Note: JTAG is a commonly used term that is also referred to as IEEE 1149.1, an industry
standard test protocol. JTAG is an abbreviation for the European Joint Test Action
Group, which invented the first versions of the IEEE 1149.1 interface. The JTAG
interface, along with the other development tools, enables you to download, run
and debug programs on the module.
The following figures show the two types of modules.
Digi Connect ME Modules
Model Description Figure
Digi Connect ME
DC-ME-01T-JT
DC-ME4-01T-JT
Digi Connect ME 9210
DC-ME-Y401-JT
DC-ME-Y402-JT
DC-ME-Y402-LX-JT
Used for development
purposes only
JTAG interface
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Note: DC-ME-01T-CLI (2/8 CLI version - has the CLI enabled by default on the serial
port)
DC-ME4-01T-CLI (4/8 CLI version - has the CLI enabled by default on the serial
port)
DC-ME-01T-PC (2/8 802.3af compliant -C module)
DC-ME-01T-PS (2/8 802.3af compliant -S module)
DC-ME-Y402-LX (Digi Connect ME 9210 4/8 Linux - production)
DC-ME-Y402-LX-JT (Digi Connect ME 9210 4/8 Linux JTAG - dev only)
Digi Connect ME
DC-ME-01T-S
DC-ME4-01T-S
DC-ME-01T-C
DC-ME4-01T-C
DC-ME-01T-CLI
DC-ME4-01T-CLI
DC-ME-01T-MF
DC-ME-01T-PC
DC-ME-01T-PS Digi
Connect ME 9210
DC-ME-Y401-C
DC-ME-Y402-C
DC-ME-Y402-LX
No JTAG interface
Ordered
independently for use
in your
implementation
Digi Connect ME Modules
Model Description Figure
Digi Connect Wi-ME Modules
Model Description Figure
DC-WME-01T-JT
Used for development
purposes only
JTAG interface
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Note: -S: No JTAG for use with Digi Plug-and-Play Firmware
-C: No JTAG for use with custom NET+OS applications
-JT: With JTAG for use with custom firmware development-
-MF: No JTAG for use with Microsoft.NET Micro Framework
Connectors: Power and Device Interface
The module has a 20-pin male connector that supports a serial interface with data rates up
to 230,400 (Digi Connect ME)/ 921,600 bps (Digi Connect ME 9210) and full-modem
control, and GPIO ports. See the following figure for pin orientation and the table for pin
assignments.
Difference in pin assignments/availability
Pin assignments/availability for pins 1 and 2 depend on which module you are using. Pins 1
and 2 are available for Digi Connect ME; these pins are removed for Digi Connect Wi-ME.
The pin assignment table shows the appropriate values.
DC-WME-01T-S
DC-WME-01T-C
No JTAG interface
Ordered
independently for use
in your
implementation.
Digi Connect Wi-ME Modules
Model Description Figure
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Power and Device Interface Connector
Viewed from bottom of the module:
Power and Device Interface Connector Pin Assignments
Pin Signal Description
ME Wi-ME
1 VETH+ — ME: Power Pass-Thru+
Wi-ME: Position Removed
2 VETH- — ME: Power Pass-Thru-
Wi-ME: Position removed
3-6 — — Position removed
7 RXD RXD Receive Data (Input)
8 TXD TXD Transmit Data (Output)
9 RTS RTS Request to Send (Output)
10 DTR DTR
Data Terminal Ready (Output)
11 CTS CTS Clear to Send (Input)
12 DSR DSR Data Set Ready (Input)
13 DCD DCD
Data Carrier Detect (Input)
14 /RESET /RESET Reset
15 +3.3V +3.3V Power
16 GND GND Ground
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Note: The development board provides connectors for an optional PoE application kit.
Note: Any pins not used can be left floating.
Note: See "Module Pinout" on page 33 for detailed IO configuration information.
Connectors: Ethernet Interface
The Ethernet connector is an 8-wire RJ-45 jack that meets the ISO 8877 requirements for
10/100BASE-T. See the following figure and table for pin orientation and pin assignments.
Note: Pin orientation and assignments are the same for modules with or without a JTAG
connector.
Ethernet Interface Pin Orientation
17, 18
Not accessible with Digi Plug-and-Play
Firmware. If using a development kit, see
"Module Pinout" on page 33 for detailed IO
configuration information.
19 Reserved. Do not connect.
20 /INIT /INIT Software Reset
Power and Device Interface Connector Pin Assignments
Pin Signal Description
ME Wi-ME
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JTag Jumper
The J1 controls the way in which the Connect ME 9210 JTag device responds to pin 14
being pulled low.
Hard Reset
The embedded modules support a hardware reset on pin 14 of the 20-pin header. Pulling
pin 14 low with an open drain driver will force the module into a hard reset state. The
module will remain in the reset state as long and pin 14 is held low and will leave this reset
state ~250mS after pin 14 goes high. Do not actively drive pin 14 high and do not allow the
rise time of the pin 14 to be longer than 100uS. When used with the development board,
this pin is wired to reset button SW4, which means it acts as a hard reset button.
Ethernet Interface Pin Assignments
Pin
1Pin 2Pin 3Pin 4Pin 5Pin 6Pin 7Pin 8
TXD+ TXD- RXD+ EPWR+ EPWR+ RXD- EPWR- EPWR-
Transmit
Data + Transmit Data - Receive Data +
Power
from
Switch +
Power
from
Switch +
Receive
Data -
Power
from
Switch -
Power
from
Switch -
Jumper Result
None No reset
1-2 Hard reset
2-3 Soft reset
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Connectors: Antenna
The Digi Connect Wi-ME is available with 1 RP-SMA connector. The antenna is
connected to the module with a reverse polarity SMA connector (sub-miniature size A).
The antenna only fits on the module one way to ensure a proper connection. Another option
for both signal reception and design flexibility is to use an antenna extension cord to
separate the antenna from the module. This allows the module to fit inside your product but
the antenna to be placed outside the device.
Module LEDs
The module has two LEDs that are located near the upper corners of the Ethernet port (see
the following figure). The following table describes the LEDs.
Note: The LEDs are the same for a module with or without a JTAG connector.
Antenna Specifications
Type Desktop Dipole 30 cm
Antenna Extension Cord
Part number DC-ANT-24DT DG-ANT-20DP-BG DG-EXT-300-RR
Gain 1.8 dBi 2 dBi -.5dB
Caution: This Part 15 radio device operates on a non-interference basis
with other devices operating at this frequency when using the antennae
listed in the Antenna Specification table. Any changes or modification to
user’s authority to operate the device.
the product not expressly approved by Digi International could void the
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LED Locations
LED Behaviors
LED Pin
Header
EM
Digi Plug-and Play Firmware
Digi Connect ME Digi Plug-and Play Firmware Digi Connect Wi-ME Customizable Modules
Top left
(yellow) 5 (+)
7 (-)
Network link status:
Off - no link has been detected.
On - a link has been detected.
Network link status:
On - unit is associated with an access
point.
Blinking slowly - unit is in ad hoc
mode.
Blinking quickly - unit is scanning
for a network.
Same as Digi Plug-
and Play Firmware
(Network link
status).
Top
right
(green)
1 (+)
3 (-) Network activity: Blinking -network data is transmitted or received.
This LED is
software
programmable.
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About the Development
Board
CHAPTER 2
Overview
The development board is a hardware platform from which you can determine how to
integrate the embedded modules into your design. The board consists of the following main
features:
Socket for connecting the embedded modules
JTAG connection (for use with the development kit only)
GPIO switches
Serial and GPIO ports
Power input
This chapter provides information on development board components and contains the
topics listed below. For more detailed information on the development board, see the
schematic and mechanical drawings on the CD that accompanies your kit. Once you’ve
installed the software that comes with your kit, you can access the schematic from the Start
menu.
"Basic Description" on page 17
"Placement of Module" on page 19
"Connectors and Blocks" on page 22
"Switches and Push Buttons" on page 26
"Development Board LEDs" on page 28
"Power Jack P15" on page 30
"Test Points" on page 31
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Basic Description
The development board contains connectors, switches, and LEDs for use while integrating
the embedded module into your design. See the following figure for the location of the
connectors, switches, and LEDs. Additionally, the board provides test points (not shown on
the figure). For more information about test points, see "Test Points" on page 31.
Board Layout and Connector Locations:
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"Port Descriptions" on page 19
"Connectors and Blocks" on page 22
"Switches and Push Buttons" on page 26
"Development Board LEDs" on page 28
"Power Jack P15" on page 30
See the following figures for placement of either module onto the development board.
Connectors, Switches and LEDs
Board Description Markers 1-5
12345
Secondary
Serial Port, P2
Primary Port
LEDs, CR5 -
CR18
GPIO Switch
Bank, SW3 Prototyping Area, P4 JTAG Header, P12
Connectors, Switches and LEDs
Board Description (continued) Markers 6-10
678910
232 Enable
Jumper
Block, P5
Embedded
Module
Connector,
P10
ME JTAG
Connector,
P11
Primary
SerialPort,P1 GPIO Port, P7
Connectors, Switches and LEDs
Board Description (continued) Markers 11-15
11 12 13 14 15
Digital I/O
LEDs, CR19 -
CR23
Logic
Analyzer
header, P3
POE Source
LED, CR24 Reset Switch,
SW4
User
Pushbuttons,
SW1 & SW2
Connectors, Switches and LEDs
Board Description (continued) Markers 16-21
16 17 18 19 20 21
Power Jack,
P15 On/Off switch, SW5
Secondary
Port LEDs
CR1-CR4
-48V DC
output from
ME module
P13
12V output
from PoE
module P14
Current
Measurement
Option P8
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Placement of Module
Port Descriptions
The development board provides the following ports:
Primary Serial Port, P1
Secondary Serial Port, P2
GPIO Port, P7
See the figure titled "Board Layout and Connector Locations:" on page 17 for the location
of the ports. The following sections describe the ports.
Primary Serial Port, P1
The Primary Serial Port is a DB-9 male connector that is labeled as P1 on the development
board. See the following figure for pin orientation; see the following table for pin
assignments.
Caution: When handling the development board, wear a grounding wrist
strap to avoid ESD damage to the board.
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Primary Serial Port Pin Orientation
Secondary Serial Port, P2
The Secondary Serial Port is a DB-9 male connector that is labeled as P2 on the
development board. The port is used only with the Digi Connect ME modules with JTAG
interfaces for debugging purposes. See the following figure for pin orientation; see the
following table for pin assignments.
Secondary Serial Port Pin Orientation
Pin 1 Pin 5
Pin 6 Pin 9
Primary Serial Port Pin Assignments
Pin
1Pin 2Pin 3Pin 4Pin 5Pin 6Pin 7Pin 8Pin 9
DCD RXD TXD DTR GND DSR RTS CTS —
Data
Carrier
Detect
Receive
Data Transmit Data Data Terminal
Ready
Signal/
Chassis
Ground
Data Set
Ready Request To Send ClearTo Send —
Pin 1 Pin 5
Pin 6 Pin 9
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