According to the features of the operating system, the intrinsic periodic clock interrupt is employed to replace the timer to finish the periodic sampling.
针对操作系统本身特点,系统调用固有周期时钟中断来替代定时器完成周期采样。
参考来源 - 基于ARM的网带式干燥炉控制系统的设计和研究·2,447,543篇论文数据，部分数据来源于NoteExpress
TOTAL TICKS is the number of times that the system-clock interrupt occurred during the trace interval.
TOTAL TICKS是追踪时间间隔过程中发生系统时钟中断的次数。
While it is running, it records the address of the instruction that is being executed every time a system-clock interrupt occurs.
当它运行时，它会记录每次系统时钟中断发生时正在执行的指令的地址。
The clock interrupt processing program tests the state of the printer intermittently, and decides whether the printer will be started again.
时钟中断处理程序定时地去查询打印机的状态，决定是否再次启动打印机。
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