On software, we take full advantage of the low power modes of the MCU to finish the task in ISR (interrupt service routine), so, the power of system rest with the ISR executive time.

在软件设计上，充分利用所选单片机的低功耗模式，让检测任务在中断服务程序中完成，使系统的功耗主要取决于中断服务程序执行的时间。

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In most RTOS, the timer interrupt service routine (ISR) executes at every time tick.

在一般的嵌入式实时操作系统中，时钟中断服务程序在每个时钟节拍工作。

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Aim Objective: to master the timer T0, T1 of the mode selection and programming methods, to understand the design method of the interrupt service routine, and learn skills in real-time debugging.

实验目的目的：掌握定时器t0、T1的方式选择和编程方法，了解中断服务程序的设计方法，学会实时程序的调试技巧。

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