针对双串口应用给出了利用环形队列的中断程序设计思路，提高了系统的实时性能。
Aimed at dual serial port application, the program design theme is proposed using circular queue which increases the real - time performance of the system.
在书中涉及的高级主题是内存测试与验证、设备驱动程序设计与实现、实时操作系统内核、以及代码优化技术。
Among the advanced topics covered in the book are memory testing and verification, device driver design and implementation, real-time operating system internals, and code optimization techniques.
根据寻北系统的功能要求，软件设计采用实时控制系统事件驱动的程序设计方法构造了寻北系统的多任务软件结构。
According to the function demands of north-finding system, software design builds multi-task software structure of north-finding system based on event driven mechanism in real time control system.
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