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Programming a square signal

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emie

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Hello,

My problem is I can't have a square signal, which its period is 500 µs and its duty cycle is 10%, with a function generator. So, I think I can you a FPGA to program a such signal.

What do you think, it's feasible or not?

Emie
 

You just want to generate a signal with period = 500us and 10% duty cycle right?
Why to make things complicated and use an FPGA? Yes definitely it is possible.
But you can just program a generic uC and get that type o/p too.....way more easier (assuming you are not familiar with FPGAs).
 
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    emie

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Yeah ! I want to program a signal with period = 500 µs and duty cycle = 10%.
But the problem is my function generator has 20% such as duty cycle min value.
if there is an easier way to solve my problem, I can use it, instead of using FPGA :)

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Dpaul, what do you mean by a generic uC?
 

Use a 4017 decade counter IC. Feed it with 20KHz. Take output from any pin.
 

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