Java User’s Guide

4.4 Handling Interfaces and Data Service Resources

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4.4Handling Interfaces and Data Service Resources

To develop Java applications the developer must know which resources, data services and hardware access are available.

•There are multiple AT parsers available

•There is hardware access over

-two serial interfaces: ASC1 and ASC0 (both fully accessible).

-general purpose I/O. To configure the hardware access, please refer to [1] and [2].

-I2C/SPI

-All restrictions of combinations are described in Section 4.4.1

•A Java application has:

-instances of the AT command class, one with CSD and the others without, each of which would, in turn, be attached to one of the AT parsers.

-two instances of access to a serial interface, ASC0 and ASC1, through the CommCon- nection API. Access to the control lines of these interfaces through CommConnection- ControlLines (TC65 only).

-System.out over any serial interface or into the file system

4.4.1Module States

The module can exist in the following six states in relation to a Java application, the serial inter- faces, GPIO and I2C/SPI. See [1] for information about the AT commands referenced. A state transition diagram is shown in Figure 11.

This section shows how Java applications must share AT parsers, GPIO pins and I2C/SPI resources. DAC, ADC and DAI are not discussed here.

Color legend for the following figures:

4.4.1.1State 1: Default – No Java Running

This is the default state. The Java application is inactive and there is an AT interface with CSD on ASC0 as well as ASC1. The initial state of the pins is according to [4].

Figure 8: Module State 1

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2008-02-25

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Siemens AC65, TC65, XT75 Handling Interfaces and Data Service Resources, Module States, State 1 Default No Java Running
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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.

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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