now i wanna generate a mutlichannel sin signals which have duty cycle with PXI-7842R. for example. the period of signal is 10ms, but there are 2ms signal , other 8ms is zero. i don't know how to achieve this. thank u!（我现在想利用PXI-7842R产生多通道的正弦信号，要求信号有一定的占空比，例如说，信号的周期是10ms，而有信号的部分是2ms，其余8ms都是空信号，怎样实现呢？谢谢）
Just to make sure I understand the problem, you want a square wave that is 2ms high and 8ms low? So a square wave with 20% duty cycle?
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