Research And Implementation Of Application Platform Based On SPARC Radiation-hardened High Performance Processor

In recent years,the domestic replacement of processor chips in important fields of electronic products has been paid more and more attention by the whole society.However,due to the low market recognition and insufficient performance of localized devices,the localization replacement process is not enough.In order to accelerate the process of localization,and realize the independent control of core technologies of the devices,this paper develops and designs an embedded application platform based on the SPARC V8 radiation-hardened high-performance processor which is independently developed by Beijing Microelectronics Technology Research Institute.This article mainly focuses on the hardware system design and software system design of the application platform.In the hardware system,design and implementation of embedded general development board based on domestic processor.First,according to the application requirements of users,the overall framework of the hardware system to meet the actual development and application is proposed.Then,carry out the specific circuit design for each different functional module.Finally,complete the PCB design of the whole hardware subsystem,then the embedded hardware platform is built.In the software part,in order to enhance the applicability of the application platform and facilitate the use of users on the embedded system,deeply analyse the Linux system's development characteristics,focusing on the Linux development cross-compilation environment,bootloader,kernel transplantation,root file system creation and Linux system start in total five key parts of the relevant configuration and compilation process.Realize the Linux operating system successful transplantation and normal operation on the SPARC V8 processor.The design and implementation of the embedded application platform based on the localized SPARC radiation-hardened high-performance processor is completed.At the end of this article,test and analyse the entire application platform.Test the basic functions of the hardware subsystem and the operation of the Linux operating system by writing the program.The results show that the localized processor embedded application platform designed in this paper works normally and meets the expected design requirements.