The Design And Implementation Of Ultrashort Wave Wireless Transceiver Based On μCOS-Ⅱ

Wireless transceiver has a wide range of applications, and this paper introduces the design and implementation of ultrashort wave wireless transceiver withμCOS-Ⅱas embedded real-time operating system,μC/GUI as embedded graphical user interface and ultrashort wave as physical transmission media.This article includes the background of the design and research of the ultrashort wave wireless transceiver, hardware platform, system software architecture and the detail achievement, system communication processes and so on. Hardware platform is based on the ST's Cortex-M3 core-based 32-bit embedded microprocessor chip STM32F103RCT6 as the controller. Peripherals includes keyboard, LCD/OLED, dataflash to expand the storage space, the wireless transmission module, and interphone, vocoder and A/D-D/A chip which are used for the voice communications. On the hardware platform, I develop the device drivers for various components and modules, port the embedded real-time operating systemμCOS-Ⅱand the embedded graphical user interface μC/GUI, enhance the function ofμC/GUI (On the one hand, achieve the Chinese display inμC/GUI; on the other hand, achieve the response ofμC/GUI for the keyboard.), achieve the function of online program updating which is also called IAP (In Application Programming), explain the layers of communication system, formulate the frame format, and develop a communication protocol for the system to provide the entire communications process. Finally, I indicate the deficiencies in the design and development and the places to be improved.