Transplantation Of Threal-Time Operating System μC/OS-Ⅱ On ARM Microprocessor

As a new-field of using of computer, the embedded real-time system receives more and more people's extensive notice. It has a few of virtue, for example, succinct, high-efficient etc. Developing an embedded application program, we need embedded hardware, real-time operating system and corresponding software tool at least. And need a very important step: it is the transplantation of an operating system on the microprocessor. The embedded hardware that this subject adopts is Samsung S3C44B0X chip built up on the basis of ARM, ARM is used as the most extensive embedded microprocessor of the embedded market at present, there are many different kinds, what this subject adopts is one kind among them:ARM7DMI. To the real-time operating system various in style on the market, what this subject selects for using is the real-time operating system of charging free with open source code: μC/OS-Ⅱ, it's kernel is very easy, This text has made a more detailed analysis to the mechanism of its postbox while introducing μC/OS-Ⅱ, and put forward new method for inquiring upon a postbox. We need corresponding software tool when you possessed the hardware and operating system. For example, the environment of compiling, artificial tool etc. The environment of compiling which this subject adopts is ARM SDT and the artificial tool is JTAG. After possessing above-mentioned three conditions, what the work need is to transplant the real-time operating system to the embedded microprocessors. This text has introduced the detail of transplantation, and has put forward some problems and solutions. Then, I have done a comprehensive experiment on my platform, having verified success of transplantation. Moreover, I have understood the dispatcher and corresponding mechanism deeply among the tasks. This text made a summary to embedded system and ARM at first, introduced the real-time operating system and μC/OS-Ⅱ, then, explained the course of transplantation exhaustively. Finally, I verified success of transplantation through an experiment, realized the dispatcher of real-time many tasks and corresponding mechanism among the tasks.