Siemens TC65 manual Java Tutorial, Using the AT Command API, Class ATCommand

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TC65 JAVA User's Guide

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12 Java Tutorial

This small tutorial includes explanations on how to use the AT Command API and suggestions for programming MIDlets. The developer should read about MIDlets, Threads and AT commands as a complement to this tutorial.

12.1Using the AT Command API

Perhaps the most important API for the developer is the AT command API. This is the API that lets the developer issue commands to control the module. This API consists of the ATCommand class and the ATCommandListener and ATCommandResponseListener interfaces. Their javadocs can be found in …\wtk\doc\html\index.html, [5].

12.1.1Class ATCommand

The ATCommand class supports the execution of AT commands in much the same way as they would be executed over a serial interface. It provides a simple way to send strings directly to the device’s AT parsers.

12.1.1.1Instantiation with or without CSD Support

There can be only exactly as many ATCommand instances as there are parsers on the device. If there are no more parsers available, the ATCommand constructor will throw ATCommandFailedException. All AT parser instances support CSD. However from a Java application point of view it may make sense to have one dedicated instance for CSD call handling. Therefore, and also for historical reasons, only one parser with CSD support may be requested through the constructor. If more then one parser with CSD support is requested, the constructor will throw ATCommandFailedException.

try {

ATCommand atc = new ATCommand(false);

/* An instance of ATCommand is created. CSD is not explicitly

*requested. */

}catch (ATCommandFailedException e) { System.out.println(e);

}

The csdSupported() method returns the CSD capability of the connected instance of the device's AT parser.

boolean csd_support = atc.csdSupported();

release() releases the resources held by the instance of the ATCommand class. After calling this function the class instance cannot be used any more but the resources are free to be used by a new instance

TC65 JAVA User's Guide_V05

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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
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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.
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