Java User’s Guide

4 Software Platform

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4 Software Platform

In this chapter, we discuss the software architecture of the SMTK and the interfaces to it.

4.1Software Architecture

The SMTK enables a customer to develop a Java application on a PC and have it be execut- able on the Java enabled module. The application is then loaded onto the module. The platform comprises:

JavaTM Micro Edition (Java METM), which forms the base of the architecture.

The Java METM is provided by SUN Microsystems, http://java.sun.com/javame/. It is specif- ically designed for embedded systems and has a small memory footprint. The ME uses: CLDC 1.1 HI, the connected limited device configuration hot spot implementation. IMP-NG, the information module profile 2nd generation, this is for the most part identical to MIDP 2.0 but without the lcdui package.

Additional Java virtual machine interfaces: AT Command API

File I/O API

The data flow through these interfaces is shown in Figure 7 and Figure 29.

Memory space for Java programs:

Flash File System: around 1700k (1200k in XT75)

RAM: around 400k

Application code and data share the space in the flash file system and in RAM.

Additional accessible periphery for Java applications

-A maximum of ten digital I/O pins usable, for example, as: Output: status LEDs

-Input: Emergency Button

-One I2C/SPI Interface.

-One Digital Analog Converter and two Analog Digital Converters.

-Serial interface (RS-232 API): This standard serial interface could be used, for example, with an external GPS device or a current meter.

For detailed information see Section 4.2.

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2008-02-25

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Siemens TC65, AC65, XT75, XT65 manual Software Platform, Software Architecture

AC65, XT65, XT75, 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.

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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.