SignalTap -> Trigger Conditions -> how to OR between them?

[amildm]

Hi All,

In SignalTap, there is an option to define several Trigger Conditions.

As for my understanding, these conditions are AND'ed - the trigger occurs only when all the conditions are met.

But could these Trigger Conditions be OR'ed (trigger occurs only when one of the conditions is met)?

Thanks!

[sstrell]

In the trigger condition column, choose that option from the pop-up list at the top (Basic AND, Basic OR, Comparative, or Advanced are listed there).

[amildm]

As for my understanding, the BASIC AND works between the signals in the same column (trigger condition), I mean vertically. But how can I OR between the "horizontally" defined conditions?

Actually I'm asking about the OR operation between the signals in the adjective columns (adjective trigger condition columns).

Please see the picture below - I'd like the trigger will occur either when a value of the pic_cnt is less than 960 or greater than 960.

So, there are two trigger condition columns... How can I OR between these condition columns (logical OR)?

[sstrell]

A single comparison trigger can do this with the interval check option.  Right-click the cell and select compare and then interval check.  You set upper and lower limits.  But to interact between multiple columns, you have to use a state-based trigger.  Otherwise, columns are checked in order in the sequential flow.

[amildm]

With the 'Compare' trigger condition, there is an option to choose a single interval only, but I actually need to check two intervals: "< 960" and "> 960" - any value excluding the value 960.

[RichardTanSY_Intel]

Do you able to get the desired result based on sstrell's suggestion?

Best Regards,

Richard Tan

[sstrell · Accepted solution]

Oh, I didn't see you were going outside the range.  Yeah, you'll need to use a state-based trigger to do that: "if condition1 or condition2" I think would work in a state.

[RichardTanSY_Intel]

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Thank you.

Best Regards,

Richard Tan

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