Research On Wireless Communication Module Based On ZigBee Technology

Along with the quick development of science and technology, The short distance wireless communication technology obtained the widespread application in people's life. ZigBee technology is a short distance, Low-power, Low rate, Low complexity Wireless communication technology. ZigBee technology has powerful network functions, It supports net form, star form, tree cluster form three main network type. ZigBee net work is stable and reliable, The ZigBee technology relies on its outstanding performance to have the evident competitive advantage in the short distance wireless communication technology. ZigBee technology in intelligent househould, industrial control, intelligent traffic, hospital medical, intelligent buildings and other fields have broad application prospects, got people more and more attention, and is currently one of the wireless communication research hot spot. To MSP430F149 microprocessor as the master control chip, CC2420 as rf chip, design of wireless communication module, Memory AT45DB041B module, Power module and other wireless communication system hardware circuit.The dissertation introduces the development background of the ZigBee technology, ZigBee technology network structure, Analyzed the ZigBee the technical agreement, From low-power and other fields consideration, Choose the right microprocessor and rf chip. Microprocessor and rf chips using SPI interface connects and communications, Deeply analyzes the overall framework of ZigBee and ZigBee agreement each child layer communication protocol, Write the system software programs. Introduce MSP430F149 MCU development environment, System initialization program, Data frames of sending and receiving programming, The flowchart of network. realization and ZigBee coordinator communication workflow. Respectively for system made single point data communication and star network data communication test, Analyzed the test experimental data, Verifies the feasibility of wireless communication system, ZigBee technology is a very good short wireless communication technology, ZigBee wireless communication module has broad application fields.