Siemens TC65 manual MIDlets, MIDlet Documentation MIDlet Life Cycle

Page 34

TC65 JAVA User's Guide

s

Strictly confidential / Released

 

6 MIDlets

The J2ME™ Mobile Information Device Profile (MIDP) provides a targeted Java API for writing wireless applications. The MIDP runs on top of the Connected Limited Device Configuration (CLDC), which in turn, runs on top of the J2ME™. MIDP applications are referred to as MIDlets. MIDlets are controlled by the mobile device implementation that supports the CLDC and MIDP. Since IMP-NG is a subset of MIDP 2.0, IMP includes MIDlets. The MIDlet code structure is very similar to applet code. There is no main method and MIDlets always extend from the MIDlet class. The MIDlet class in the MIDlet package provides methods to manage a MIDlet’s life cycle.

6.1MIDlet Documentation

MIDP and MIDlet documentation can be found at http://wireless.java.sun.com/midp/ and in the html document directory of the wtk, …\Siemens\SMTK\TC65\wtk\doc\index.html

6.2MIDlet Life Cycle

The MIDlet life cycle defines the protocol between a MIDlet and its environment through a simple well-defined state machine, a concise definition of the MIDlet’s states and APIs to signal changes between the states. A MIDlet has three valid states:

•Paused – The MIDlet is initialised and is quiescent. It should not be holding or using any shared resources.

•Active – The MIDlet is functioning normally.

•Destroyed – The MIDlet has released all of its resources and terminated. This state is only entered once.

State changes are affected by the MIDlet interface, which consists of:

•pauseApp() – the MIDlet should release any temporary resources and become passive.

•startApp() – the MIDlet starts it’s execution, needed resources can be acquire here or in the MIDlet constructor

•destroyApp() – the MIDlet should save any state and release all resources

•Note: destroyApp() is called when a MIDlet should terminate caused by device.

•notifyDestroyed() – the MIDlet notifies the application management software that it has cleaned up and is done

•Note: the only way to terminate a MIDlet is to call notifyDestroyed(), but destroyApp() is not automatically called by notifyDestroyed().

•notifyPaused() – the MIDlet notifies the application management software that it has paused

•resumeRequest() – the MIDlet asks application management software to be started again.

°getAppProperty() – gets a named property from the MIDlet

TC65 JAVA User's Guide_V05

Page 34 of 90

26.09.2005

Page 33 Page 35
Image 34
Page 33 Page 35
Contents Java Users Guide September 26 Document Name TC65 Java Users GuideTC65 Java Users Guide TC65 Java Users GuideV05Table of Contents Maintenance 3.3.2Debug Environment Compile and Run a Program without a Java IDEJava Security Java Tutorial Differences from the TC45Sun Java Studio Mobility 6 Switching Emulators TablesPreamble Overview New solutionRelated Documents Terms and Abbreviations Abbreviation DescriptionInstallation CD InstallationSystem Requirements 1.2 WTK ComponentsModule Exchange Suite SDK and Java StudioInstalling the Standard Development Toolkit Siemens Mobility Toolkit InstallationInstalling the Smtk Environment Installing Eclipse Installing Borland JBuilder X Installing Sun Java Studio MobilityInstalling Module Exchange Suite MES Smtk Uninstall UpgradesSoftware Platform Software Architecture3 DAC/ADC Interfaces 1 ASC0 Serial DeviceGeneral Purpose I/O 4 ASC1Media JVM InterfacesIP Networking Other InterfacesData Flow of a Java Application Running on the Module ADCHandling Interfaces and Data Service Resources Module StatesState 2 No Java Running, General Purpose I/O and I2C State 1 Default No Java RunningState 4 Default Java Application Active State 3 No Java Running, General Purpose I/O and SPIState 5 Java Application Active, General Purpose I/O and I2C Module State Transitions Maintenance IP ServicePower Saving ChargingShutdown Airplane ModeAlarm Automatic ShutdownSwitching from Data Mode to Command Mode Restart after Switch OffSpecial AT Command Set for Java Applications Mode Indication after MIDlet StartupRestrictions Flash File System Configuration of Serial InterfaceJava Commands MemoryFrequencyB 1 / frequencyA PerformanceJava Duration of each loop = 600 sPin I/O Data Rates on RS-232 APIPlain Serial Interface Voice Call in Parallel75% 63% 55% 33% Scenarios with Gprs ConnectionUpload 65% 55% 33% 16%91% 87% 81% 73% Download85% 78% 58% 48% MIDlets MIDlet Documentation MIDlet Life CycleMIDlet.destroyApp method Hello World MIDlet Here is a sample HelloWorld programModule Exchange Suite Command Line BasedFile Transfer to Module Windows BasedOver the Air Provisioning Security IssuesOtap Introduction to Otap Over The Air Provisioning OtapOtap Overview Parameters Max. Length AT Keyword SM Install/update Delete Otap ParametersShort Message Format Install operationDelete operation Java File Format Procedures Install/Update Delete Time Out Values and Result Codes Tips and Tricks for OtapOtap Tracer SecurityHow To Compile and Run a Program without a Java IDE Build ResultsRun on the Module with Manual Start CompileRun on the Module with Autostart Switch on Autostart Switch off AutostartDebug Environment Data Flow of a Java Application in the Debug EnvironmentEmulator Java IDE Sun Java Studio Mobility 6 2004Q3 Switching emulators Projects Examples TemplatesCompile and run JBuilderX JDK settings Borland JBuilderExamples TC65 Java Users Guide JBuilder2005 JDK settings Eclipse IntegrationEclipse Plug-in installation Eclipse J2ME platform TC65 Java Users GuideV05 26.09.2005 Example Eclipse Project importEclipse Example Compile and debug Eclipse Create packageEclipse Configuration BreakpointsJava Security Secure Data Transfer ModeAsja Vasecuritycertificate J a va C u r i t y c e r t i f i c a t eCreate a Secure Data Transfer Environment Step by Step Create CA and generate CA Root CertificateSecured mode Unsecured modeExecution Control Generate key pair Change to Secured Mode ConceptBuild binary data for AT command Atsjsec Generate customer root CertificateConcept for the Signing the Java MIDlet Encoded JAR-File HashStructure and Description of the Java Security Commands Application and Data ProtectionStructure of the Java Security Commands General structureBuild Java Security Command Hash SHA1Send Java Security Command to the Module ATSJSEC?Create Java Security Commands Export X.509 Root CertificateCommand switch off module exchange functionality Sign a MIDletJava Tutorial Using the AT Command APIClass ATCommand Instantiation with or without CSD SupportSending an AT Command to the Device, the send Method Data ConnectionsTC65 Java Users Guide Non-blocking ATCommand.send Method ATCommandResponseListener InterfaceSynchronization ATEvents ATCommandListener InterfaceImplementation Registering a Listener with an ATCommand Instance Threads Programming the MIDletExample TC65 Java Users Guide Differences from the TC45
Related manuals
Manual 123 pages 53.3 Kb

TC65 specifications

The Siemens TC65 is a compact and powerful GSM/GPRS module designed for a wide range of mobile communication applications. With its robust features, the TC65 perfectly meets the growing demands for connectivity in various industries, including automotive, telematics, and industrial automation.

A standout feature of the TC65 is its compact size, allowing it to be easily integrated into various devices without compromising on performance. The module supports GSM (Global System for Mobile Communications) and GPRS (General Packet Radio Service), providing reliable and efficient voice and data transmission.

One of the key technologies incorporated in the TC65 is its integrated TCP/IP stack, which allows for seamless internet connectivity and enables application developers to create IoT solutions with ease. This capability is essential for remote monitoring, data logging, and other applications that require continuous data exchange.

The TC65 also boasts extensive multimedia capabilities, including support for SMS, MMS, and voice calls. This makes it suitable for applications that require not only data transmission but also communication features. Additionally, it supports various codecs for voice compression, ensuring high-quality audio in voice applications.

Enhanced security features are another highlight of the TC65. It incorporates comprehensive security protocols to safeguard data transmission, making it suitable for sensitive applications in finance, healthcare, and other critical sectors. The module also includes an integrated SIM application toolbox that supports the development of secure and customizable applications.

For developers, the TC65 offers an easy-to-use software development kit (SDK), simplifying the process of application development. This means that businesses can quickly create and deploy solutions tailored to their specific needs.

The module operates across a wide voltage range and is designed to tolerate challenging environmental conditions, making it ideal for industrial use. It supports various interfaces, including UART, GPIO, and I2C, enabling it to connect with a variety of peripherals and sensors, thus expanding its usability.

In summary, the Siemens TC65 combines compact design, versatile communication capabilities, advanced security features, and developer-friendly resources, making it an excellent choice for anyone looking to implement reliable and sophisticated GSM/GPRS communication in their applications. The TC65 is a valuable asset in the evolving landscape of connected devices and IoT solutions.
Top Page Image Contents