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FPGA设计中信号量管理的硬件电路设计

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在对嵌入式实时操作系统μC／OS-II中任务之间通信进行深入研究的基础上，提出了将信号量的管理用基于FP—GA设计的硬件电路来完成，同时保证新的混合式实时操作系统对用户来说是透明的，即保证了混合式实时操作系统的可移植性。经过设计和不断地改进，混合式实时操作系统成功的移植到Altera公司的DE2—70开发板上，并完成了信号量管理的测试。这是一次探索性的设计，是混合式嵌入式实时操作系统设计中非常重要的一部分。

Based on the communication research of the tasks in the embedded real-time operating system μC/OS-II, a scheme is proposed, that the semaphore management is completed using the hardware circuit based on FPGA. At the same time,the new hybrid real-time op- erating system is transparent to the users, which ensures the portability of the hybrid real-time operating system. The hybrid real-time operating system has been successfully transplanted to Altera DE2-70 development board,and the test of semaphore management is corn pleted. This is an exploratory design,and it is an important part in overall design of the hybrid embedded real time operating system.