ISA100 Wireless Module

 

 ISA100 WIRELESS MODULE

 

 

INTRODUCTION

The ISA100 modules are a complete ISA100 implementation on a small PC board module.  The modules are available in various configurations including choice of antenna type and external amplifier.

 

Description

There are four(4) TI 2430 modules available for the WiWIZ1 product (or any other OEM application).  Each of the modules includes the ISA100 software protocol stack. The modules are pictured above and consist of 2 low power models, one with a printed circuit (PC) board antenna and the other with a UFL connector for external antenna or a chip antenna.  There are two high powered units, one with PC board antenna and the other with SMA connector or chip antenna.   These devices provide range and packaging alternatives based on the application.

LOW POWER DEVICE

 

 

HIGH POWER DEVICE

 

Interfaces: (see TI2430 data sheet)
UART Interface TX, RX, RTS, CTS
SPI (Synchronous Serial Interface)
The external power amplifier is the TI CC2591


A complete description of the TI 2430 radio/microprocessor single chip IEEE 802.15.4 device can be found here (http://focus.ti.com/docs/prod/folders/print/cc2430.html)


ISA Software Stack

The ISA100 software stack is stored in flash memory on the chip.  The module includes a TI conformant connector for
programming, if required. 

Interfacing with the ISA100 stack on the module

There are two ways to interact with the ISA100 module.

STANDALONE OPERATION

The ISA100 wireless module is primarily intended for utilization as a communication coprocessor unit.  However for limited local operation the module may be used with no external microprocessor device.  A simple application would be a single sensor device where  the sensor is a digital unit with a serial interface.   The ISA100 module would read the serial port, obtain the data and transmit the data on the ISA100  mesh network.  Since the module is also maintaining the ISA100 communication stack the amount of processing is limited.   The application will determine the efficacy of standalone operation.  If for example a sensor has to be read every 10-15 minutes then this would leave more time for local processing of data, with the radio in sleep mode,  thus reducing power consumption substantially.  The ISA100 module is provided with an API to build standalone applications.  Standalone operations provides a significant benefit for small wireless sensor modules providing reduced complexity, lower power consumption and increased reliability.  The WiVIB1 uSIM wireless vibration sensor uses this technique in conjunction with a powerful digital MEMS vibration sensor

ISA100 Module as Auxiliary Communication Processor

The ISA100 module can be connected to an application processor and serve as a separate  RF protocol processing engine.   The module does all the wireless protocol processing leaving the separate  microprocessor to handle  the application in a dual processor mode.  This is the architecture of the WiWIZ1 which uses a powerful RISC processor with Analog to Digital Converters (ADC), temperature sensors, accelerometers and other devices to implement the applications and then pass the data to the ISA100 module to handle all the data communications.  The WiWIZ1 serves as an application development platform.  There are a set of software APIs that are available for the RISC processor with a free development environment.   The user does not need to have an intricate knowledge of mesh networking to implement a complete wireless sensor network.  All the user has to do is transmit and receive packets from the ISA100 network processor.

OEM

The ISA100 modules are available in OEM quantities with the ISA100 stack preloaded.

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