Trigger sources include manual (front panel button), IEEE-488 bus, trigger Link, internal timer, and external trigger.

触发源包括手动(从面板按钮)、IEEE - 488总线、Trigger Link接口、内部时钟和外部触发。

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Once you verify the bus speed, you can confidently write the timer, serial-I/O, and other clock-dependent routines.

一旦检验总线速度，可以信赖的写定时器、串行I/O和其他时钟有关的程序。

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