Agilent Technologies HP 1660E Series User Manual page 188

Using the Pattern Generator
Building Test Vectors and Macros
Macro 0 (current macro field)
Touching this field brings up a list of macros that have been created
and are available to insert into the Sequence menu. If you want to edit
or view a previously built macro, select that macro from the list and it
will appear in the main part of the display.
Add/Delete Macro
Selecting this field brings up a pop-up menu that lets you choose
between adding a new macro or deleting one. If you select Add Macro,
a new blank macro appears in the display with a new Macro "n" name.
To rename the new macro, select the macro name field, and in the pop-
up menu that appears, type in a new name. You can also add
parameters to the new macro in the same pop-up menu. For more
information on parameters, refer to "Using Parameters" below.
If you select Delete Macro, you will be presented with a list of current
macros. Select the macro you want to delete from the list. If the macro
you delete is being used in the MAIN sequence, it will be removed from
the sequence. If you try to delete the first macro, it will be removed
from the MAIN sequence but not from the macro list.
Using Parameters
Parameters are used to pass values into macros. A major benefit in
passing parameters is that you keep a macro's functionality generic and
still direct specific action identified by parameters. Think of
parameters as the only part of a macro that changes as the macro is
reused.
You create the macro and add parameters to the macro in the User
Macro menu. You then insert the macro and assign parameter values in
the Sequence menu. As you reuse the macro in other places in the
sequence, simply change parameter values to the new specific values.
Macro parameters are passed as 32-bit values. If fewer than 32 bits are
assigned to a label in the Format menu, the most significant bits of the
parameter value are truncated when the parameter is used as data for
the given label.
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