Application Engineering TC45 with GPRS and Java

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Application Engineering TC45 with GPRS and Java
A presentation from ICM WM AE Athanasios
Papacostoulis - Manager Technical Sales
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Content

• TC45 Feature Overview
• DSB 45
• Open Software Platform
• I/O PINs
• OTAP
• Java Development
• Examples
• Summary
• Appendix A GPRS basics
• Appendix B GPIO new AT-Commands
• Appendix C FAQs

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TC45 - Feature Set (1)

• Control via AT commands (GSM 07.07 and 07.05, and
  Siemens specific AT-commands)
• Dualband E-GSM 900 MHz/ GSM 1800 MHz
• GPRS multi-slot Class8 / Class B
• SIM application tool kit
• Tri-codec (HR, FR, EFR)
• Supply voltage range 3.2...4.5V
• Compact and super-slim (only 3.5 mm)
• Two serial Interfaces
• Digital Audio Interface (DAI)
• FTA (Full type approval)

Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary
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TC45 - Feature Set (2)

• Open software platform (reserved resources for
  the customers application)
• Internal TCP/IP stack
• 9 configurable I/O PINs
• Over The Air Provisioning ( OTAP )

Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary
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DSB 45 - Development Support Box
Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary

• It supports all necessary interfaces and enables
  all relevant activities for the customer
  application, including
• Development
• Testing
• Adaptation
• Optimization
• Fault detection
• SW update of the module
• Environment for approval of the module

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Open software platform benefits of java

• Well proven technology in mobile
  devices(available in mobile phones for more than
  2 years)
• Java is a standard programming language, tools
  and documentation are available for free
• Java provides a sandbox model security model
  to protect firmware
• Java implementation
• Applications are independent of HW-platform
• Applications only depend on implementedJava-Virtu
  al Machine

Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary
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Open software platform our solution

• Virtual Machine J2ME
• - for embedded systems
• - less memory effort
• Accessible periphery
• - max. 9 Digital I/O-Pins,
• usable for example as
• Output status LEDs
• Input Emergency Button
• - RS232 usable for example as
• GPS, current meter
• - Autostart function

Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary

• JVM interfaces to
• - at-commands
• - Flash
• - TCP/IP-services
• - RS232-library
• Memory space for Java programs
• - 300kbyte Flash
• - 100kbyte RAM

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Open software platform your advantages

• no external Microcontroller ( additionally less
  power consumption )
• no external ROM
• no external RAM
• internal TCP/IP-Stack (used via IMP 1.0 methods)
• Decrease of costs - Hardware -
  HW-development - SW-development
  (embedded know-how)
• faster Development Cycles

Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary
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Open Software Platform - architecture
Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary
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Open software platform overview

• Application runs in Sand Box
• APIs(Application Program Interface)
• RS232 API
• AT-Command API
• File I/O API
• IMP 1.0

Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary
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Open software platform - AJOF

• AT Java Open source Framework
• Siemens provide an easy to use frame work
• No knowledge of AT-Commands necessary for several
  services
• One Java method for dedicated services
• Services
• - Mobile engine status- Voice call handling-
  CSD call and GPRS connection handling- Short
  Message Service- Phonebook features- Pin I/O

Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary
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I/O PINS
Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary
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Over the Air Provisioning

• OTAP is a mechanism to install, update and delete
  JAVA applications over the air interface.
• OTAP is a common practice in the Java world
• OTAP can be fully controlled over SMS
• and also via AT commands
• Requirements for OTAP
• Web server wich contains .jad and .jar files
• OTAP Controller or SMS Sender

Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary
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What is offered to the customers?

• PC-Development- and Debug-Environment
• Tool to upload application over serial interface
  on module
• TC45 Modules with integrated Java virtual
  machine simple example Framework with simple
  to use GSM-functionality

Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary
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Install java development environment

• Requirement of Development PC
• Operating System WIN2000 or WINXP
• Serial Interface
• Processor min. Pentium I
• Disk space min. 150 MB
• Download Software from http//java/sun.com
• Development Java SDK 1.3.1
• Debugger SunONE

Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary
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Install java development environment

• Install Java SDK 1.3.1
• Install SunONE
• Install Siemens Environment (delivered CD-ROM)

Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary

• The following tools will be installed during the
  setup
• Documentation
• Siemens IMP emulation environment
• Siemens ModuleExchange
• Siemens WINMUX

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Developing a java application

• The 4 steps of developing a Java-Application
• Develop Java-Application on PC
• Debug Java-Application on PC
• Load Java-Application into TC45
• Run Java-Application

Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary
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Application example (1)

• Positioning andpersonal security

Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary
Children tracking and emergency systems powered
with Siemens Wireless Modules
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Application example (2)

• Remote Metering

Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary
Power metering and remote control systems with
Wireless Modules

• Power Consumption can be exactly measured, traced
  and controlled.
• Using the internal TCP/IP stack data can easily
  be displayed via web page (http)

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Summary
Feature Overview DSB45 GPRS Open SW Platform I/O
PINs OTAP Java Development Examples Summary

• Features
• Software
• Dual band 900/1800 MHz
• GPRS class 8 plus J2ME with interfaces to
• AT Commands
• Flash file system
• TCP/IP-Stack
• RS232-library
• 9 configurable digital I/O-pins
• 50 pin board-to-board connector
• PC-emulator with debug environment
• Additional features
• OTAP (application SW)
• Java library

• Market Position
• Compact GSM/GPRS cellular engine
• with integrated Java technology

• Target Markets
• Telemetry/Telematics, e.g.
• Meter reading
• Security systems
• Fleetmanagement

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• Thank you for your attention
• www.siemens.com/wm

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Appendix A

• GPRS basics

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What is GPRS ?

• GPRS (General Packet Radio Service) is a step
  between GSM and 3G cellular networks. GPRS offers
  faster data transmission via a GSM network.
• This technology makes it possible for users to
  make telephone calls and transmit data at the
  same time.
• The main benefits of GPRS are that it reserves
  radio resources only when there is data to send
  and it reduces reliance on traditional
  circuit-switched network elements.
• With GPRS, an IP data transmission protocol,
  which is characteristic of computer networks, is
  being introduced to GSM. IP is a data
  transmission protocol which is used in Internet.

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MS classes
Mobile class
Description
A
Simultaneous calls (via GSM) and data
transmission (via GPRS)
Automatic switching between the GSM and the GPRS
mode. No GSM GPRS at the same time
B
C
Hand operated switching between the GSM and the
GPRS mode
TC45
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NOM

• Mobile station class B is capable of doing
  circuit switched (GSM) and packet (GPRS) transfer
• ... either packet or circuit switched transfer at
  the same time
• ... is reachable (pageable) for both kinds of
  traffic at all times
• To be pageable for the network during data
  transfer, the network must have implemented
  paging coordination (NOM I)
• Network operating modes
• NOM II no PBCCH, no paging coordination
• NOM III PBCCH implemented, no paging
  coordination
• NOM I PBCCH and paging coordination implemented

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Multislot classes
TC45
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Possible data rates
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Appendix B

• GPIO
• New AT-Commands

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GPIO

• GPIOs are partitioned in blocks (ASC1 and DAI)
• Configured and controlled by AT Commands
• Usable with Java Java send the AT Command via
  AT Command API and without JAVA
• Customer application send the AT Command via
  ASC0
• Status of the I/Os after start up the module

ASC0
ASC1
DAI
Active (AT interfeace)
Unused
Unused
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GPIO

• Example
• Java isnt running
• Set ASC1 to 2nd serial interface
• Use DAI PINs as GPIOs
• All commands are send to ASC0

ASC0
ASC1
DAI
Active
2nd serial Interface
GPIOs
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GPIO

• Example
• Java isnt running
• Set ASC1 as GPIOs
• Use DAI
• All commands are send to ASC0

ASC0
ASC1
DAI
Active
GPIO
DAI
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GPIO

• Example
• Java is running
• Set ASC1 as RS232 API
• - the RS232 is opened by a method by the java
  program(CommConnection)connector.open(parameters
  )
• DAI PINS are used as GPIO
• - all commands to configure the GPIO are send by
  the java program over the ATC API

ASC0
ASC1
DAI
JAVA System.out only
RS232 API
GPIO
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New AT Commands

• AT commands for handling Java applications
• ATSJRA run Java Application
• ATSJNET Set Dialup Network Access Parameters
• ATSJOTAP Over the air provisioning
• AT commands for I/O-port management
• ATSPIO General Purpose IO driver Open/Close
• ATSCPIN Pin configuration
• ATSCPOL Polling configuration
• ATSCPORT Port configuration
• ATSDPORT Delete a port configuration
• ATSGIO Get IO state of a specified pin or port
• ATSHIFM Set IO state of a specified pin or
  port
• ATSSIO Set IO state of a specified pin or port

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New AT Commands

• Extended AT Commands
• ATSCFG ConfigurationSCFG
  .Userware/Autostart ? NEWSCFG
  .Userware/Autostart/AppName ? NEWSCFG
  .Userware/Autostart/Delay ? NEWSCFG
  .Userware/Passwd ? NEWSCFG
  .URC/RinglineSCFG .URC/Datamode/Ringline
• ATCFUNATCFUN0,1 is supported in Alarm Mode
  to restart the TC45
• TC45 goes then to the Full Mode send
  the command using the AT Command API of the VM

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Appendix C FAQs

• Support of Power Saving ?
• External use of the TCP/IP stack ?
• Which JAVA Classes provide access to TCP/IP ?
• What kind of approval is recommended ?
• Are FTP services usable / available ?
• What is the difference between a JAR and JAD file
  ?

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Support of Power Saving ?

• The TC45 support power saving, also when Java is
  in use!- switch to sleep mode via ATCFUN-
  all threads have to be inactive- sleep modes
  provoke a limited access to the interfaces
  (typical paging of 2,12sec)

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External use of the TCP/IP stack?

• only the java application has direct access to
  the internal TCP/IP stack
• possible scenarios
• 1) - java read data using the RS232 API
  - java send the data e.g. using GPRS to a
  HTTP-Server
• 2) - java read data using the RS232 API
  - java write the data to the flash file
  system - java send the data file e.g. using
  GPRS to a HTTP-Server (e.g. every hour)

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Which JAVA Classes provide access to TCP/IP?

• TCP/IP API is part of the IMP1.0
• - IMP 1.0 provides access to TCP/IP with these
  interfaces
• DatagramConnection
• HttpConnection
• StreamConnection
• CSD and GPRS parameters must be defined
  separately by the AT command ATSJNET

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What kind of approval is recommended?

• DTA (Delta Type Approval)
• because of the sandbox model it is guaranteed,
  that the java programs have no influence to the
  harmony to the GSM/GPRS NetworkThat means the
  same approval procedure like TC35i/MC35i/MC45 etc.

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Are FTP services usable?

• YES
• IMP1.0 doesnt support such a CLASS, BUT its
  possible to implement a own FTP CLASS
• example application/Class is available

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What is the difference between a JAR and JAD file?

• JAR ? Java Archive
• the JAR file is a compressed file, which
  contains the java program JAD ?Java
  Application Descriptor
• the JAD file describes the JAR file and its
  properties (name, size, version)