Generating 17 clocks signals using Digital Discovery?

[sray070]

Hello,

My goal is to generate 17 squarewaves, all at the same frequency, where each and every one of the 17 needs a variable duty cycle and variable relative phase.

I have this working on the Digital Discovery, but for 16 squarewaves, as the Discovery is limited to 16 output channels.

Any suggestions for generating the final, 17th squarewave?

Namely, is it possible to synchronize together two Digital Discoveries, where the second generates that 17th squarewave? What about generating the 17th with a standard function generator and somehow synchronizing the function generator and Digital Discovery together?

Thanks

[attila]

Hi @sray070

Yes.
For instance:
DD1 generates 16 signals DIO 24-39
connect DD1 DIO 39 to DD2 DIN 0 (or any other DD1 DIO to any other DD2 DIO or DIN)
DD2 Logic Analyze trigger on this input
DD2 Pattern Generator to trigger on "Logic Analyzer" Also set DD2 Run time to be less than the period and repeat Trigger to resynchronize with the DD1.
Take in consideration the ~200ns delay of DD2 signal (input, trigger, output)

Here I used DD1 Logic Analyzer to monitor all the 17 signals.