【摘要】 针对当前低压微机保护装置运行中出现的处理器性能瓶颈问题,在简单分析ARM(advancedRISCmachines)处理器技术特点后,以AT91RM9200芯片为应用对象,详细介绍了基于ARM处理器的低压微机保护装置的软硬件设计方案。针对硬件设计,介绍了装置的各个功能模块,重点阐述了A/D转换部分的设计实现方法;针对软件设计,介绍了ARM处理器软件设计的特点,重点阐述了启动和中断部分的软件编写方法,并简单介绍了采用嵌入式实时操作系统——VxWorks开发微机保护软件的方法。更多还原

【Abstract】 A design is presented by using an AT91RM9200 type chip (ARM microprocessor) in the low-voltage microcomputer-based protective device. The hardware and software design of the new type protection are then introduced, including each of the function modules, the method of A/D conversion, and boot and interrupt function, etc. Finally, a method for developing the protection software with embedded real-time operating system VxWorks is presented.更多还原