Based On The Powerpc And Uc/os- ¢ò An Embedded System

Embedded system is a production which combines computer technology, semiconductor technology, electron technology and practical applications in every industry. This decides that it must be a knowledge-integrated system with technology-intensity, capital-intensity, highly dispersible, continually innovative. With the development of semiconductor technics and the advancement of slug designing, the performance is improved, system size is enlarged, embedded software on the plug is becoming complexity in the research of microcontroller and DSP embedded system. When embedded system and DSP system are introduced to real-time operating system, the development of embedded system software turns to industrialization cooperation production from handwork. This is the first way to solve the problem.This text does the following work mainly:Firstly, it based on the hardware platform that the core is Motorola Company's MMC2107 slug. This text researches how to design hardware circuit against different system, they include how to choose slug, how to design interface circuit, and the problem should be paid attention in the designing and debugging process. The testing result improves that this system makes the most of resource provided by MMC2107 slug, and it has the characteristics of low consumed power, strongly function, low cost. Secondly, real-time operating system uC/OS is replanted successfully based on the hardware platform. This divides function into several tasks, and designs task programs separately.This system operation is scheduled under operation system.The first chapter shows the definition of Embedded Real-time system, analyses evaluating indicator of Real-time operation system, and expatiates the research status quo and development trend of embedded processor now,The second chapter introduces the whole design and the division of software function of tax controlled receiver.The third chapter introduces the process and means of replanting uC/OS in detail. The validity of replanting has been improved in practice.The forth chapter introduces the mainboard's hardware design of tax controlled receiver. The mainboard contains common facility, such as CPU, LCD drive, FLASH, serial interface , and so on.The fifth chapter gives the hardware design of driveboard on printer. This driveboard drives EPSON MU110- â…¡ stylus print head.At the end of this text, It concludes the research, and gives the future of the research.