Mux

Hello,

I want to switch the outputs of a multiplexer and I use the Arduino Due board .
For example: the changing frequency should be around 1 Khz. After this period the multiplexer should switch one output further.
Is it necessary to use an Interrupt? I want to write some code around this switching.

Thanks

For example: the changing frequency

What is changing?

After this period

After what period? A period is an interval of time.

Is it necessary to use an Interrupt?

For what?

I want to write some code around this switching.

I don't even understand what you are trying to do, but, don't let that stop you from writing the code.