How to Count Boolean Transitions in large arrays, i.e. waveforms?

[Jeffrey01]

How can I quickly count all the boolean transitions in a large array, i.e. something like 2,500 elements.  The array is the result of a boolean "greater than?" comparison, and I am trying to find out how many times the signal exceeded the upper limit.  Thanks!

[kimdino]

Hi Jeffrey,

How about something like this?

Kimdino

[Jeffrey01]

Is there a way to do this without the for loop?

[GerdW]

Hi Jeffrey,

yupp, there's a way 🙂

[unclebump]

wire the booelan array to the boolean to 0,1 function and add the array elements

[kimdino]

Hi Jeffrey,

> Is there a way to do this without the for loop?
I cannot see one.   Why no 'for loop'?

Kimdino

[kimdino]

Hi Jeffrey,

> Is there a way to do this without the for loop?
I cannot see one.   Why no 'for loop'?

Kimdino

[kimdino]

Hey unclebump,

Yep, much neater. It shows why you are a PAV and not me. <G>

Kimdino

[GerdW]

Hi Kimdino,

thanks anyway 😉

You don't have to be a PAV to use simple boolean math instead of converting every single bit to number...

Message Edited by GerdW on 12-12-2006 05:29 PM

[Jeffrey01]

I need to do this on 32 channels, of 2,500 samples, five times per second.  I'm worried about performance issues if I need to explicitly execute a for loop this many times in quick sucession.

Any other ideas?