Minigui In T-kernel Embedded Operating System Analysis And Transplantation

With the quick developing of embeded RTOS(Real Time Operating System),the GUI is getting more attention in the area of information appliance,such as PDA,STB, DVD/VCD,ect.MiniGUI is a free software project.The aim of the project is to supply a light GUI support system,which can practically run on any POSIX compatible system.The T-Kernel is a very popular and open source embedded OS,base on TRON(The Real-time Operating System Nucleus),the Japanese EOS standard.The combination of these two system,composing a good graphical interface and real-time response function of embedded software development platformThis paper first through studying and reseaching the theory of T-Kernel operating system to understand it's principle mechanism,and then analize the architecture of MiniGUI to comprehend the source code in-depth and Analysis comparatively the Implementation of task and thread and their scheduling rules,especially in the support to POSIX(Portable Operating System Interface) on T-Kernel.Combining with the migration of MiniGUI on T-Kernel and analyzing the threads library thoroughly,we introduce one-to-one model on relationship between task and thread and propose transplant programme.In the end,we realize the real time POSIX thread library and complete the transplant of MiniGUI on T-Kernel,test and verify the satisfaction to the requirement of Embedded and Real Time system by compiling and running the test program.