Advanced State Triggering

Define State Trigger Terms "a" through "d"

Define State Trigger Terms "a" through "d"

In the following exercises, you will set up the analyzer to check for and store a complex sequence of states before it triggers. While the analyzer checks for these states, it will store only selected states that you define. As in chapter 3, you will define your trigger terms first, then use these terms to define a sequence of events. In this case, the sequence will be made up of states of the ripple counter on the training board. You can use this same method to monitor any state sequence, such as subroutine calls or read and write cycles of a microprocessor.

1Press the Trigger MENU key.

2Highlight the base field below SCOUNT, and press the Select key. Highlight Decimal in the pop-up menu, and press the Select key.

3Under SCOUNT, highlight the field to the right of the a term.

4Enter 011 and then press the Done key.

5Repeat steps 3 and 4 to enter 022, 033, and 044 in terms b, c, and d, respectively.

 

Defining State Trigger Terms "a" through "d"

Result

The trigger terms "a", "b", "c", and "d" are assigned the decimal values 011,

 

022, 033, and 044.

6-5