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I want to generate about 16 square wave with delay time initial as the following figure .It mean each pulse generated must delay with a value of delay time before it generated with frequency about 40khz.

  • You are not really explaining what you want to do. Your request is too vague. From what I have gleaned from your earlier questions it is possible to do what you want. It will need effort on your part though. I suggest you start experimenting to see how waves work. I also suggest you'll need to draw out on paper what you want to happen. Clue - you probably want to construct a wave 50µs long and repeat that wave. – joan Sep 21 '16 at 8:33
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Thanks for your recommend, @joan. Acctually I'm have chaotised to resolve this probem. I have used piscope to observe behavior of waveform how when I change duty cycle on set(pin, dc) function that you guided me but it seems not accurately as things I want. I can't observe when pulse start generated and to must delay it how? Can I observe all pulses generated on GPIO in realtime by piscope? acctually I'm not still understand how set(pin,dc)function operate as https://raspberrypi.stackexchange.com/questions/54859/can-any-library-generate-25-square-wave-40khz-on-gpio-pin-of-raspberry-pi-2-mode/54992?noredirect=1#comment83312_54992

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