Research And Realization Of Emdedded System Based On ARM

This thesis takes developing embedded system as the background, which is popular at present, choosing the S3C44B0 processor which is built on the basis of ARM as the hardware foundation of this thesis. This thesis regards S3C44B0 as the core and develops a hardware platform which is embedded with uClinux operating system. The USB, the serial port and the interface of liquid crystal display are extended in this hardware platform which is regarded as the environment of studying the uClinux operating system, which shows the basic functions of a development environment. This thesis illuminates that the circuit theory of every part and the design method.The uClinux operating system is directly correlated with the hardware platform of the embedded system. The uClinux embedded is greatly different with different hardware. This thesis analyses the kernel of uClinux aiming at the designing hardware platform. According to the memory of the operating system and the management mechanism of the documentation, the design technique of miniaturization of the uClinux is achieved. On this basis, this thesis refers the uClinux operating system which has run successfully on the hardware platform of 4510. The transplant course of the uClinux is provided in detail. Some of the source code of the uClinux is modified and the modified content is provided also .At last, this thesis summarizes the keystone of modifying the source code, putting forward some issues we need to pay attention to, and realizes embedding and running of uClinux on this hardware platform.After embedding the operating system, this thesis regards liquid crystal display(LCD) as the object, studying and discussing the development of the driver, and designs the driver of the LCD concretely, presenting the method on how to compile the kernel.On the angle of application and practice of embedded system, this thesis illuminates the basic theory and the development of embedded system based on processor S3C44B0 of ARM. This thesis accomplishs the combination of the readability and practicability .