A hardware debugging tool that allows you to view the voltage on one or more electrical lines.For example, you might use an oscilloscope to determine if a particular interrupt is currently asserted.

• 一种硬件调试工具；它让你能观察到一个或更多电路上的电压.；例如:如果一个特殊的中断发生；你可以用一个示波器去检测它