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`Test Systems Strategies Inc

Language Overview Waveform Generation

V E R S I O N R2017.0

TDS

LANGUAGES

GUIDE : WGL

2007.1

`Lang`uages, Vol. II, R2017.0

Test Systems Strategies Inc

`Test Systems Strategies Inc

Language Overview Waveform Generation

Table of Contents

Chapter 1 - Language Overview...........................................................................................................6

1.1 Waveform Generation................................................................................................................6

1.2 Test Control................................................................................................................................6

Chapter 2 Waveform Generation Language.........................................................................................8

2.1 Introduction................................................................................................................................8

2.2 When to Use WGL.....................................................................................................................8

2.3 WGL and Wavemaker................................................................................................................9

2.4 WGL Language Conventions...................................................................................................10

2.4.1 WGL Syntax Notation Conventions................................................................................10

2.4.2 Comments.........................................................................................................................11

2.4.3 Identifiers.........................................................................................................................12

2.4.4 Numbers...........................................................................................................................12

2.4.5 Reserved Words................................................................................................................13

2.4.6 Strings..............................................................................................................................14

2.5 WGL Syntax............................................................................................................................14

2.5.1 General Syntax.................................................................................................................14

2.5.2 Program Block Syntax.....................................................................................................17

2.5.3 Generic Program Blocks..................................................................................................18

2.5.3.1 Signals......................................................................................................................18

Single-Bit Signals............................................................................................................20

Buses................................................................................................................................20

Groups.............................................................................................................................21

Multiplexed Signals or Buses..........................................................................................22

direction...........................................................................................................................23

Strobe Clause...................................................................................................................24

dutpin...............................................................................................................................24

mux..................................................................................................................................25

initialp..............................................................................................................................25

Radix................................................................................................................................26

2.5.3.2 Scan Cells.................................................................................................................26

2.5.3.3 Scan State.................................................................................................................27

2.5.3.4 Scan Chain................................................................................................................29

2.5.3.5 TimePlates................................................................................................................32

2.5.3.6 Patterns.....................................................................................................................38

2.5.3.7 Subroutines...............................................................................................................46

2.5.3.8 Symbolics.................................................................................................................48

2.5.4 Equation-Specific Program Blocks..................................................................................50

2.5.4.1 EquationSheet...........................................................................................................51

2.5.4.2 ExprSet.....................................................................................................................53

Variables....................................................................................................................................54

Constants.........................................................................................................................57

Expressions......................................................................................................................57

Operators and Incrementors.............................................................................................57

`Lang`uages, Vol. II, R2017.0

Test Systems Strategies Inc

`Test Systems Strategies Inc

Language Overview Waveform Generation

Built-ins.....................................................................................................................................58

Annotations......................................................................................................................59

Scaling.............................................................................................................................60

Units of Measurement......................................................................................................61

Minimum and Maximum Ranges....................................................................................61

2.5.4.3 EquationDefaults......................................................................................................62

2.5.5 Tester-Specific Program Blocks.......................................................................................67

2.5.5.1 Formats.....................................................................................................................67

2.5.5.2 Registers...................................................................................................................69

2.5.5.3 Pin Groups................................................................................................................70

2.5.5.4 TimeGens..................................................................................................................71

2.5.5.5 TimingSets................................................................................................................72

2.6 Additional Features..................................................................................................................74

2.6.1 Macros..............................................................................................................................74

2.6.1.1 Macro Definition......................................................................................................74

2.6.1.2 Macro Invocation.....................................................................................................75

2.6.1.3 Definition and Invocation without Parameters.........................................................76

2.6.1.4 Definition and Invocation with Parameters..............................................................77

2.6.2 Include Files.....................................................................................................................78

2.6.3 Annotations......................................................................................................................79

2.6.4 Global Mode....................................................................................................................80

2.6.4.1 pmode Attribute........................................................................................................80

2.7 Examples..................................................................................................................................82

2.7.1 Using WGL Macros and Include Files.............................................................................82

2.7.2 WGL and Scan Test Hardware.........................................................................................86

2.7.3 Using Annotations in WGL..............................................................................................88

2.7.3.1 Master TimePlate Annotation Example....................................................................90

Track Match Priority Example........................................................................................90

Match/Spec Track Examples...........................................................................................90

2.8 Binary WGL.............................................................................................................................91

2.8.1 WGL Binary Interface......................................................................................................91

2.8.1.1 Including Binary Files.......................................................................................................92

2.8.2 Binary File Format...........................................................................................................94

2.8.2.1 Definitions................................................................................................................94

2.8.2.2 Line Format..............................................................................................................94

2.8.2.3 Line Type...........................................................................................................................95

2.8.2.4 Line Type Ordering............................................................................................................95

2.8.2.5 Line Type Description........................................................................................................96

Version Control................................................................................................................96

Pattern Header.................................................................................................................96

Subroutine Header.........................................................................................................100

End Subroutine..............................................................................................................100

Equivalent binary:..........................................................................................................101

Vector.............................................................................................................................101

Map Key........................................................................................................................101

`Lang`uages, Vol. II, R2017.0

Test Systems Strategies Inc

`Test Systems Strategies Inc

Language Overview Waveform Generation

Loop...............................................................................................................................103

End Loop.......................................................................................................................104

Subroutine Call..............................................................................................................105

Repeat............................................................................................................................105

Scan Parallel..................................................................................................................106

Scan Chain.....................................................................................................................106

Skip................................................................................................................................108

Annotations....................................................................................................................108

End Binary.....................................................................................................................109

2.8.3 Examples of ASCII and the Equivalent Binary.............................................................109

2.8.3.1 Example 1...............................................................................................................110

2.8.3.2 Example 2...............................................................................................................113

2.9 Glossary of WGL Terminology..............................................................................................115

2.9 Glossary of WGL Terminology.............................................................................................121

Illustration Index

Figure 2-1 1: Conceptual model of equation sheet data organization................................................55

Figure 2-3 2: Example device with scan hardware.............................................................................85

Figure 2-4 3: Using Binary Pattern Data............................................................................................91

Index of Tables

Table 2-1: Identifiers...........................................................................................................................11

Table 2-2: Reserved Words.................................................................................................................12

Table 2-3: Block Names.....................................................................................................................13

Table 2-4: WGL program block types................................................................................................17

Table 2-5: Equation Operators...........................................................................................................57

Table 2-6: Built-In Variables..............................................................................................................57

Table 2-7: Built-in Functions..............................................................................................................58

Table 2-8: Scaling prefixes.................................................................................................................59

Table 2-9: Units of Measurement.......................................................................................................60

Table 2-10: TDS Logic States............................................................................................................67

Table 2-11: WGL-pattern-state to TDS-logic-state mapping.............................................................67

Table 2-12: Default pin groups...........................................................................................................69

Table 2-13: P Mode definitions..........................................................................................................80

Table 2-14: P Mode definitions (continued).......................................................................................81

Table 2-15: Binary Definitions...........................................................................................................93

Table 2-16: Components of Line Format...........................................................................................94

Table 2-17: Hexadecimal Values for Each Line Type........................................................................94

Table 2-18: Version Control Line Type..............................................................................................95

Table 2-19: Pattern Header Line Type................................................................................................96

Table 2-20: End Pattern Line Type.....................................................................................................98

Table 2-21: Subroutine Header Line Type..........................................................................................99

Table 2-22: Subroutine Header Byte Count Line Type......................................................................99

`Lang`uages, Vol. II, R2017.0

Test Systems Strategies Inc

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