提高μC/OS-II在EP9315上的执行效率

Improving the executive efficiency of μC/OS-II based on EP9315

针对如何提高μC/OS-II在EP9315上的执行效率问题,结合μC/OS-II和EP9315体系,分析了影响系统这一性能的主要因素,并提出了解决方案。利用Scatter-loading机制,重新定位可执行映像在存储器的映射,同时根据任务执行时间,计算合适的时钟中断,动态修改时钟中断周期,禁止中断干扰正在运行的任务,从而提高系统执行效率。

Aiming at the problem of improving the executive efficiency of μC/OS-Ⅱ based on EP9315, and combining the μC/OS-Ⅱ with the structure of EP9315,the primary factor to influence system this performance is analysed,and the resolution is given.The executable image locates again in the memory by Scatter- loading mechanism,calculating appropriate clock interrupt in accordance with implementation of the task,and the clock interruption cycle is dynamic modification,so that the running task is not interrupted meaninglessly too nmch,So improving the system executive efficiency consequently.