关键词: 实时操作系统, 任务管理, 硬件任务调度器, 现场可编程门阵列

Abstract: In this paper，uC/OS-II task scheduling algorithm is improved and hardened.In the uC/OS-II kernel based on priority preemptive scheduling algorithms，extend the same priority task scheduling algorithm，break through the limitation of the number of tasks of the original system.The original system don’t must have a different priority requirement on each task.Hardware logic is used to implement task scheduling in RTOS.Improve the real time performance and deterministic of the algorithm.The whole design is implemented by using VHDL.Software debugging and analysis and function simulation are taken by using ISE 8.2.Simulation results indicate that hardware implementation of task management maintain the accuracy of the system call，reduce the processor overhead，reduce the execution time of the system call.

Key words: real-time operating system, task management, hardware task scheduler, Field-Programmable Gata Array（FPGA）