Teledyne-lecroy UWBTrainer Exerciser Script Language Instrukcja Użytkownika Pobierz pdf (Strona 107)

LeCroy Corporation UWBTrainer Exerciser - Generation Script Language Reference Manual

10.19.3 Nested Calls Using Global Variables

You can call another generation procedure inside a generation procedure. This is called

"nested calls". During such calls, the current values of global variables are used when the called

generation procedure is parsed.

Example

z = 18

SOME_PKT_TEMPLATE $Z # Declare a global structure variable 'Z'

# based on the template 'SOME_PKT_TEMPLATE'.

Main

{

$Y = SOME_PKT_TEMPLATE # Declare a local structure variable 'Y'

{

Field0 = z + 12 # Use a global variable 'z'.

}

z++ # Increment the global variable 'z'.

Send Y # Send frame based on the local structure variable 'Y'.

Call Block1( $Y, 12, 10 ) # Call 'Block1'.

}

Block1( SOME_PKT_TEMPLATE $p, x, y )

{

$p # Change the local structure variable 'p'.

{

Field0 = 2*(x + y) + z # Use local variables 'x', 'y' and global

# variable 'z' here.

}

Send Z # Send frame based on the global variable 'Z'.

$Z # Change the global structure variable 'Z'.

{

Field0 = 0x0000BEEF

}

$Z[0, 4] = 0xA # Change the 4 bits of structure variable 'Z'

# at offset 0 bits.

Call Block2( $p ) # Call 'Block2'.

}

Block2( SOME_PKT_TEMPLATE $p )

{

Send p # Send frame based on the local structure variable 'p'.

Send Z # Send frame based on the global structure variable 'Z'.

}

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Teledyne-lecroy UWBTrainer Exerciser Script Language Instrukcja Użytkownika Strona 107