Rearch And Application Of The Embedded Operating System μC/OS-Ⅱ

Embedded system is widely used in many fields today, Embedded OperatingSystem which is the core of the Embedded system, has become an important branchof operating system. The purpose of this paper is to study how to use the EmbeddedReal-Time Operating System (RTOS), and its application in the chemical irradiancedetecting system. As the foundation of the whole chemical irradiance detectingsystem software, the operating system makes off different task and forms the truss ofthe whole software system, according to the need of the application and the flow ofthe operation. At the same time it transfers the rock-bottom drive functions on thebasis of multitask, and it designs and achieves the application part of the wholechemical irradiance detect system software.Chemical irradiance detecting system is a detecting instrument making use ofchemical irradiance. It is the outcome of the combination of embedded technic andirradiance detecting technic. The system uses S3C44BOX as the main control chip andthe Embedded Real-Time Operating System (RTOS) as the foundation of systemsoftware, it plots the task on the mechanism ofμC/OS-Ⅱmultitask and accomplishesthe application part in concrete tasks. The main task of the paper is extended bysurrounding the concrete application of Embedded Real-Time Operating System inchemical irradiance detecting system.Firstly, this paper analyses the core ofμC/OS-Ⅱparticularly, and then narrates itsprinciples, such as the management of task, the communications between tasks,synchronous mechanism and the memory management. On the basis of deepunderstanding about the principle ofμC/OS-Ⅱoperation system, it is made as the coreof chemical irradiance detecting system software, and develops correspondingexploitation.Then, the paper combines the theory and the practice. According to the principleofμC/OS-Ⅱoperation system and the need of operation and application, it makesproperly system software into different tasks, designs and constructs the whole software truss making use of theμC/OS-Ⅱmultitask mechanism.At last, it replantsμC/OS-Ⅱoperating system into S3C44BOX, the main controlchip of the chemical irradiance detecting system. Whereafler it carries out actualsoftware programming and transfers the rock-bottom driver according to thedesigning of the system truss. It accomplishes the exploitation of the application partsof the whole item. And it widely meets the needs of application via the control anddebugging of the chemical irradiance detecting system.Now the system has finished prophase design and exploitation, and it's in thephase of testing. The system achieves the basic initial anticipations and needs, and italso shows the rationality and validity of the author's study and task. At the same time,there still are some shortages and somewhere that needs to be improved. At the end ofthe paper, it sets forth these aspects, and brings forward some advice which provideslots of significative reference for the next exploitation and improvement.