Agilent Technologies 93000 SOC Series Training Manual page 498

Advanced Testflow Control 18-1 Testflow Variables
Testflow Variables in Testfunctions
There is a special application for testflow variables in testfunction-
based testflows. You can use these variables inside the Test Control
window, for example to set Pass/Fail limits.
This allows you to run the same Testflow using different limits or other
parameters by simply changing the values of variables.
.
Figure 303 Using Variables in the Continuity Testfunction
To refer to a testflow variable in the Test Control window, simply enter
the name of the variable preceded by an @ sign, for example
@I_test .
Complex expressions You can also build complex expressions by using the following opera-
tors:
• +, –, *, / , ( ) for calculations
• | <var> | for absolute value
• ~ for signum (result is 1 for positive values and -1 for negative
values)
To indicate that an entry in the Test Control window is an expression,
you have to enclose the entire expression in brackets preceded by a #.
The following are valid examples:
• #(@Vcc+1.5)
• #(1.5+~@Vcc*1.2)
• #(@period*0.9+(|@offset|+0.5))
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Agilent 93000 SOC Series User Training Part 1, October 2004