HP (Hewlett-Packard) 16500A, 16510B User Manual

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Front -Panel Operation Reference

HP 16510B Logic Analyzer Module

for the HP 16500A Logic Analysis System

ÿCopyright Hewlett-Packard Company 1989

Manual Set Part Number 16510-90913 Printed in the U.S.A. June 1989

Printing History

New editions are complete revisions of the manual. Update packages, which are issued between editions, contain additional and replacement pages to be merged into the manual by the customer. The dates on the title page change only when a new edition or a new update is published.

A software code may be printed before the date; this indicates the version level of the software product at the time of the manual or update wasissued. Many product updates and fixes do not require manual changes and, conversely, manual corrections may be done without accompanying product changes. Therefore, do not expect a one to one correspondence between product updates and manual updates.

Edition 1 June 1989 16510-90913

List of Effective Pages

The List of Effective Pages gives the date of the current edition and of any pages changed in updates to that edition. Within the manual, any page changed since the last edition is indicated by printing the date the changes were made on the bottom of the page. If an update is incorporated when a new edition of the manual is printed, the change dates are removed from the bottom of the pages and the new edition date is listed in Printing History and on the title page.

Pages Effective Date

All June 1989

Introduction

About this manual...

Welcome to the new generation of HP logic analyzers! The HP 16500A Logic Analysis System has been designed to be easier to use than any Hewlett-Packard logic analyzer before. In addition, because of its configurable architecture, it can easily be tailored to you specific logic design and debug needs.

The user interface of the HP 16500A was designed for the most intuitive operation possible. Pop-up windows and colorgraphicshelp lead you through setups and measurements so you won’t have to memorize a lot of steps. As you read this manual and the other manuals about the mainframe and acquisition modules, you will see just how easy the HP 16500A is to use.

This logic analyzer reference manual is divided as follows: Chapters 1 through 4 contain introductory information about the logic

analyzer and the accessories supplied with the HP 16510B. They contain information that will familiarize you with the user interface and menus.

Chapters 5 and 6 describe the basic menus of the timing and state analyzers.

Chapters 7 through Appendix C describe other logic analyzer functions such as making basic measurements, State Compare, State Waveforms, and State Chart, printing, and specifications.

If you aren’t familiar with the HP 16510B Logic Analyzer, we suggest youreadtheHP 16510B Getting Started Guide. This guide contains tutorial examples on the basic functions of the logic analyzer.

If you’re new to logic analyzers...or just need a refresher, we think you’ll find Feeling Comfortable with Logic Analyzers valuable reading. It will eliminate any misconceptions or confusion you may have about their application, and will show you how to get the most out of your new logic analyzer.

Contents

Chapter 1: General Information

LogicAnalyzerDescription .................................. 1-1

UserInterface........................................... 1-1

Configuration Capabilities ................................. 1-2

KeyFeatures............................................ 1-3

AccessoriesSupplied........................................ 1-3

AvailableAccessories....................................... 1-4

Chapter 2: Probing

Introduction............................................... 2-1

ProbingOptions............................................ 2-1

TheHP10269CGeneralPurposeProbeInterface............... 2-2

GeneralPurposeProbing.................................. 2-3

TheTerminationAdapter.................................. 2-3

TheHP16510BProbingSystem .............................. 2-4

ProbesandProbePods.................................... 2-4

ProbePodAssembly ..................................... 2-4

ProbeCable............................................. 2-5

Probes................................................. 2-5

Grabbers............................................... 2-6

PodGrounds............................................ 2-6

ProbeGrounds .......................................... 2-7

SignalLineLoading ........................................ 2-8

MaximumProbeInputVoltage................................ 2-8

PodThresholds ............................................ 2-8

ConnectingtheLogicAnalyzertotheTargetSystem .............. 2-8

ConnectingtheProbeCablestotheLogicAnalyzer............... 2-9

ConnectingthePodstotheProbeCable......................... 2-9

DisconnectingtheProbesfromthePods ....................... 2-10

ConnectingtheGrabberstotheProbes......................... 2-11

ConnectingtheGrabberstotheTestPoints .................... 2-11

LabelingPods,Probes,andCables............................ 2-12

HP 16510B Contents-1 Front-Panel Reference

Chapter 3: Using the Front-Panel Interface

Introduction ............................................... 3-1

UsingtheMouse ........................................... 3-1

HowtoSelectMenus........................................ 3-2

HowtoSwitchBetweenAnalyzers............................. 3-3

ReturningtotheSystemConfigurationMenu..................... 3-3

Pop-upMenus ............................................. 3-3

HowtoClosePop-upMenus.................................. 3-4

ToggleFields.............................................. 3-4

HowtoSelectOptions....................................... 3-4

HowtoEnterNumericData................................... 3-6

HowtoEnterAlphaData..................................... 3-7

HowtoRollData........................................... 3-9

Assignment/SpecificationMenus ............................. 3-11

AssigningPodBitstoLabels.............................. 3-11

SpecifyingPatterns...................................... 3-13

SpecifyingEdges........................................ 3-14

Chapter 4: Using the Menus

Introduction ............................................... 4-1

MenuMaps................................................ 4-1

State/TimingConfigurationMenuMap ......................... 4-2

TimingFormatMenuMap.................................... 4-3

TimingTraceMenuMap..................................... 4-4

TimingWaveformMenuMap................................. 4-5

StateFormatMenuMap...................................... 4-7

StateTraceMenuMap....................................... 4-8

StateListingMenuMap..................................... 4-10

StateCompareMenuMap................................... 4-11

StateWaveformMenuMap.................................. 4-12

StateChartMenuMap...................................... 4-14

MixedDisplayMenuMap................................... 4-16

Contents-2 HP 16510B

Front-Panel Reference

Chapter 5: Menus

Introduction............................................... 5-1

SystemLevelMenu......................................... 5-1

State/TimingConfigurationMenu ............................. 5-2

Name.................................................. 5-2

Type .................................................. 5-3

Autoscale .............................................. 5-4

Pods................................................... 5-5

Print................................................... 5-5

Run................................................... 5-7

SubsystemLevelMenus..................................... 5-7

FormatSpecificationMenus.................................. 5-8

TimingandStateFormatSpecificationMenuFields ............ 5-9

Label.................................................. 5-9

Polarity(Pol)........................................... 5-11

BitAssignment......................................... 5-11

PodThreshold.......................................... 5-12

SpecifySymbols........................................ 5-14

Clock................................................. 5-21

PodClock............................................. 5-23

ClockPeriod........................................... 5-27

TimingTraceSpecificationMenu............................. 5-27

TimingTraceSpecificationMenuFields..................... 5-28

Run/TraceMode........................................ 5-28

ArmedBy............................................. 5-29

Acquisition Mode....................................... 5-30

Label................................................. 5-32

Base.................................................. 5-33

FindPattern............................................ 5-34

PatternDuration(presentfor______)........................ 5-37

ThenFindEdge ........................................ 5-39

StateTraceSpecificationMenu .............................. 5-43

SequenceLevels .......................................... 5-47

InsertLevel............................................ 5-48

DeleteLevel........................................... 5-48

StorageQualifier........................................ 5-49

BranchingQualifier..................................... 5-49

OccurrenceCounter..................................... 5-50

StorageMacro.......................................... 5-50

HP 16510B Contents-3 Front-Panel Reference

ReadingtheSequenceLevelDisplay........................... 5-53

Acquisition Fields ......................................... 5-55

Run/TraceMode........................................ 5-55

ArmedBy ............................................. 5-56

Branches .............................................. 5-57

Count................................................. 5-61

Prestore............................................... 5-64

QualifierandPatternFields.................................. 5-65

Label ................................................. 5-65

Base.................................................. 5-66

QualifierField.......................................... 5-67

PatternFields........................................... 5-68

Chapter 6: Interpreting the Display

Introduction ............................................... 6-1

TheTimingWaveformsMenu................................. 6-1

TimingWaveformsMenuFields............................... 6-2

Markers(Timing)........................................... 6-3

MarkersOff/SamplePeriod................................ 6-3

MarkersTime ........................................... 6-3

MarkersPattern.......................................... 6-5

MarkersStatistics ........................................ 6-6

AccumulateMode........................................ 6-6

At___marker........................................... 6-7

s/Div(seconds-per-division)Field............................. 6-8

DelayField................................................ 6-9

TheStateListingMenu..................................... 6-10

StateListingMenuFields ................................... 6-12

Markers(State)............................................ 6-12

MarkersOff............................................ 6-13

MarkersPattern......................................... 6-13

MarkersTime .......................................... 6-14

MarkersStatistics ....................................... 6-15

MarkersStates.......................................... 6-15

Timing/StateMixedModeDisplay............................ 6-16

State/StateMixedModeDisplay.............................. 6-17

Time-CorrelatedDisplays ................................... 6-20

Contents-4 HP 16510B

Front-Panel Reference

Chapter 7: Using The Timing Analyzer

Introduction............................................... 7-1

ProblemSolvingwiththeTimingAnalyzer...................... 7-1

WhatAmIGoingtoMeasure?................................ 7-2

HowDoIConfiguretheLogicAnalyzer?....................... 7-2

ConnectingtheProbes....................................... 7-4

ActivityIndicators....................................... 7-4

ConfiguringtheTimingAnalyzer.............................. 7-4

Specifying a Trigger Condition................................ 7-7

AcquiringtheData ......................................... 7-8

TheTimingWaveformMenu................................ 7-10

TheGreenandYellowDottedLines........................ 7-10

TheRedDottedLine .................................... 7-10

ConfiguringtheDisplay.................................... 7-10

DisplayResolution...................................... 7-11

MakingTheMeasurement................................... 7-12

FindingtheAnswer........................................ 7-13

Summary................................................ 7-14

Chapter 8: Using The State Analyzer

Introduction............................................... 8-1

ProblemSolvingwiththeStateAnalyzer........................ 8-1

WhatAmIGoingtoMeasure?................................ 8-2

HowDoIConfiguretheLogicAnalyzer?....................... 8-3

ConnectingtheProbes....................................... 8-5

ActivityIndicators....................................... 8-5

ConfiguringtheStateAnalyzer................................ 8-6

SpecifyingtheJClock...................................... 8-10

Specifying a Trigger Condition............................... 8-13

AcquiringtheData ........................................ 8-16

TheStateListing.......................................... 8-19

FindingtheAnswer........................................ 8-20

Summary................................................ 8-22

HP 16510B Contents-5 Front-Panel Reference

Chapter 9: State Compare Menu

Introduction ............................................... 9-1

AccessingtheCompareMenu................................. 9-2

TheCompareandDifferenceListingDisplays.................... 9-2

TheCompareListing...................................... 9-2

TheDifferenceListing .................................... 9-2

CreatingaCompareImage.................................... 9-3

Bit Editing of the Compare Image.............................. 9-4

MaskingChannelsintheCompareImage........................ 9-5

SpecifyingaCompareRange.................................. 9-6

Repetitive Comparisons with a Stop Condition.................... 9-7

LocatingMismatchesintheDifferenceListing.................... 9-8

SavingCompareImages ..................................... 9-8

Chapter 10: State Waveform Menu

Introduction .............................................. 10-1

AccessingtheStateWaveformMenu.......................... 10-1

SelectingaWaveform...................................... 10-2

ReplacingWaveforms...................................... 10-5

DeletingWaveforms ....................................... 10-5

SelectingSamplesperDivision............................... 10-6

DelayfromTrigger ........................................ 10-6

StateWaveformDisplayFeatures............................. 10-6

XandOMarkersforStateWaveform.......................... 10-6

Chapter 11: State Chart Menu

Introduction .............................................. 11-1

AccessingtheStateChartMenu .............................. 11-1

SelectingtheAxesfortheChart .............................. 11-1

ScalingtheAxes........................................... 11-2

TheLabelValuevs.StatesChart.............................. 11-3

TheLabelValuevs.LabelValueChart......................... 11-4

X&OMarkersforChart.................................... 11-5

MarkerOptions......................................... 11-6

Contents-6 HP 16510B

Front-Panel Reference

Chapter 12: Using the Timing/State Analyzer

Introduction.............................................. 12-1

ProblemSolvingwiththeTiming/StateAnalyzer................ 12-2

WhatAmIGoingtoMeasure?............................... 12-2

HowDoIConfiguretheLogicAnalyzer?...................... 12-3

ConfiguringtheStateAnalyzer............................... 12-4

ConnectingtheProbes...................................... 12-5

AcquiringtheData ........................................ 12-5

FindingtheProblem ....................................... 12-5

What Additional Measurements Must I Make? .................. 12-7

HowDoIRe-configuretheLogicAnalyzer?.................... 12-8

ConnectingtheTimingAnalyzerProbes ....................... 12-8

ConfiguringtheTimingAnalyzer............................. 12-9

Setting the Timing Analyzer Trigger ......................... 12-10

TimeCorrelatingtheData.................................. 12-11

TheTimingWaveformMenu............................... 12-12

DisplayingtheWaveforms............................... 12-12

OverlappingTimingWaveforms ............................ 12-15

Re-acquiringtheData..................................... 12-17

FindingtheAnswer....................................... 12-18

Summary............................................... 12-18

Chapter 13: Using a Printer

Setting Printer Configuration ................................ 13-1

PrintingOptions........................................... 13-1

PrintingOn-ScreenData ................................... 13-2

PrintingEntireStateListing................................. 13-2

Chapter 14: Microprocessor Specific Measurements

Introduction.............................................. 14-1

MicroprocessorMeasurements............................... 14-1

MicroprocessorsSupportedbyPreprocessors ................... 14-2

Z80 .................................................. 14-3

NSC800.............................................. 14-4

8085 ................................................. 14-5

8086or8088........................................... 14-6

80186or80188......................................... 14-7

HP 16510B Contents-7 Front-Panel Reference

80286................................................. 14-8

80386................................................. 14-9

6800or6802.......................................... 14-10

6809or6809E......................................... 14-11

68008................................................ 14-12

68000and68010(64-pinDIP)............................ 14-13

68000and68010(68-pinPGA)........................... 14-14

68020................................................ 14-15

68030................................................ 14-16

68HC11.............................................. 14-17

LoadingInverseAssemblerFiles............................. 14-18

SelectingtheCorrectFile................................... 14-18

LoadingtheDesiredFile................................... 14-18

ConnectingtheLogicAnalyzerProbes........................ 14-19

HowtoDisplayInverseAssembledData ...................... 14-19

Appendix A: Installing New Logic Analyzer Boards into the Mainframe

Introduction ...............................................A-1

Initial Inspection............................................A-1

PowerRequirements ........................................A-1

ProbeCableInstallation......................................A-2

Installation................................................A-2

ModuleInstallation .........................................A-2

InstallationConsiderations.................................A-2

Procedure...............................................A-3

OperatingEnvironment......................................A-6

Storage...................................................A-6

Packaging.................................................A-7

TaggingforService.........................................A-7

Appendix B: Error Messages

Contents-8 HP 16510B

Front-Panel Reference

Appencix C: Specifications and Characteristics

Introduction............................................... C-1

Specifications.............................................. C-1

Probes................................................. C-1

StateMode................................................ C-1

TimingMode.............................................. C-2

OperatingCharacteristics .................................... C-2

Probes................................................. C-2

MeasurementConfigurations ................................. C-3

StateAnalysis ............................................. C-3

Memory................................................ C-3

TraceSpecification....................................... C-3

Tagging................................................ C-4

Symbols ............................................... C-5

TimingAnalysis ........................................... C-5

Transitional Timing Mode ................................. C-5

Glitch Capture Mode ..................................... C-5

WaveformDisplay....................................... C-6

TimeIntervalAccuracy ................................... C-6

TriggerSpecification ..................................... C-6

MeasurementandDisplayFunctions ........................... C-7

Autoscale(TimingAnalyzerOnly).......................... C-7

Acquisition Specifications ................................. C-7

Labels................................................. C-7

Indicators .............................................. C-7

MarkerFunctions........................................ C-8

Run/StopFunctions ...................................... C-8

DataDisplay/Entry....................................... C-8

Auxiliary Power............................................ C-9

OperatingEnvironments..................................... C-9

Index

HP 16510B Contents-9 Front-Panel Reference

General Information

Logic Analyzer Description

The HP 16510B logic analyzer is part of a new generation of general purpose logic analyzers with improved features to accommodate next generation design tasks.

The 80-channel HP 16510B logic analyzer is capable of 100 MHz timing and35MHzstateanalysisonallchannels.

This analyzer is designed as a stand alone instrument for use by digital and microprocessor hardware designers. The HP 16500A mainframe has HP-IB and RS-232C interfaces for hardcopy printouts and control by a host computer.

User Interface The user interface is easier to use than in previous generations for first-

time and casual users aswell as experienced logic analyzer users. The HP 16500A has three user interface devices: the knob on the front

panel, the touchscreen, and the optional mouse.

Figure 1-1. HP 16500A User Interface

HP 16510B General Information Front-panel Reference 1 - 1

The knob on the front panel isused to move the cursor on certain menus, increment or decrement numeric fields, and to roll the display.

The touchscreen fields can be selected by touch or with the optional mouse. To activate a touchscreen field by touch, touch or press the field (the dark blue box) on the display with your finger until the field changes color. Then remove yourfinger from the screen to activate your selection.

To activate a field with the optional mouse, position the cursor (+) of the mouse over the desired field and press the button on the upper-left corner of the mouse.

The user interfaces are discussed in more detail in the HP 16500A Reference manual.

Configuration

Capabilities

* multiples of 16 channels

The HP 16510B can be configured as two independent machines (analyzers) maximum at one time or two mac hinesinteractively. The combinations are:

• Up to 80 channels state

• Up to 80 channels timing

• Two state machines with multiples of 16 channels per machine with

a combined maximum of 80 channels

• One state and one timing machine with multiples of 16 channels p er

machine with a combined maximum of 80 channels

Figure 1-2. HP 16510B Configuration Capabilities

General Information HP 16510B 1 - 2 Front-panel Reference

Key Features Two 3.5-inch disk drives are integral to the instrument for storing logic

analyzer configurations and acquired data. Thedisk drive also provides a way of loading inverse assembly configuration files into the logic analyzer for configuring ease.

Additional key features of both models include:

• Transitional timing for extended timing analyzer memory

• Lightweight passive probes for easy hook-up

• All channels can beused for state or timing at the maximum sample

rate

• HP-IB and RS-232C interface for programming and printer dumps

• An external trigger BNC connector

• Efficient package size

• Transitional or glitch timing m odes

• 1k-deepmemoryonallchannels

• Glitch detection

• Marker measurements

• Triggering and pattern qualification

• Overlapping of timing waveforms

• Eight sequence levels

• Eight pattern recognizers

• One range recognizer

• Time and number-of-states tagging

• Pre-store

• Auto-scale

• Programmability

• Cross-domain triggering

• Interactive measurements

• Mixed-mode display

• Oscilloscope type controls in the timing analyzer

• State Compare, Chart, and Waveform displays

Accessories Supplied

Table 1 lists the a ccessories supplied with your HP16510B. If any of these accessorieswere missing when you received the logic analyzer from the factory, contact your nearest Hewlett-Packard office. If you need additional accessories, refer to the Accessories for the HP 1650A/HP 1651A and HP 16500A Logic Analyzers data sheet.

HP 16510B General Information Front-panel Reference 1 - 3

Table 1-3. Accessories

Accessory HP Part No. Quantity

Probe assemblies 01650-61608 5 Probe cables (35MHz State) 16510-61601 3 Probe cables 16510-61602 2 Grabbers (Note 1) 5959-0288 100 Ground leads (long) 01650-82102 5 Ground leads (short) 01650-82103 10 RS-232C Loop back adapter 01650-63202 1 Probe a nd probe c able numbering

label card Operating system disk 16510-13520 2 Front-panel Reference manual 16510-90913 1 Programming Reference manual 16510-90914 1 Service manual 16510-90912 1

Notes:

01650-94303 1

1. Package of 20 per part number.

Available Accessories

General Information HP 16510B 1 - 4 Front-panel Reference

In addition to the accessories supplied, there are a number of accessories available that will make your measurement tasks easier and more accurate. You will find these listed in the Accessories for the HP 1650A/HP 1651A and HP 16510A Logic Analyzers.

Probing

Introduction This chapter contains a description of the probing system of the

HP 16510B logic analyzer. It also contains the information you need to connect the probe system components to eachother, to the logic analyzer, andtothesystemundertest.

Probing Options

You can connect the HP 16510Blogic analyzersto your system under test in one offour ways:

• HP 10320C User-definable Interface(optional)

• HP 10269C with microprocessor specific modules (optional)

• the standard HP 16510B probes (general purpose probing)

• direct connection to a 20-pin 3M

using the optional termination adapter (HP Part No. 01650-63201).

The optional HP 10320C User-definable Interface module combined with the HP 10269C General Purpose Probe Interface (optional) allows you to connect the HP 16510B logic analyzer to your target system. The HP 10320C includes a breadboard (HP 64651B) which you customwire for your system.

Also available as an option that you can use with the HP 10320C is the HP 10321A Microprocessor Interface Kit. This kit includes sockets, bypass capacitors, a fuse for powerdistribution, and wire-wrap headers to simplify wiring of your interfacewhen you need active devices to support the connection requirements of your system.



Series type header connector

HP 16510B Probing Front-panel Reference 2 - 1

The HP 10269C

General Purpose

Probe Interface

Instead of connecting the probe tips directly to the signal lines, you may use the HP 10269C General Purpose Probe Interface (optional). This allows you to connect the probecables (without the probes) to connectors on the interface. When the appropriate preprocessor is installed in the interface, you will have a direct connection between the logic analyzer and the microprocessor under test.

There are a number of microprocessor specific preprocessors available as optional accessories which are listed in the Accessories for the HP 1650/HP1651A and HP 16500A Logic Analyzers data sheet. Chapter 11 of thismanual also introduces you to preprocessors and inverse assemblers.

Figure 2-1. HP 10269C with Preprocessor

Probing HP 16510B 2 - 2 Front-panel Reference

General Purpose

Probing

General purpose probing involves connecting the probes directly to your target system without using the interface. General purpose probing does not limit you to specific hook-up schemes as the probe interface does.

The Termination

Adapter

The optional termination adapter (HP Part No. 01650-63201) allows you to connect the probe cables directly to test ports on your target system without the probes. However, since the probes contain the proper termination for the logic analyzer inputs, a termination must be provided when you aren’t using the probes. The termination adapter provides this termination.

The termination adapter is designed to connect to a 20 (2x10) position, 4-wall, low profile header connector, 3M

You connect the termination adapter to the probe cable in place of thepod connector and connect the other end of the adapter directly to your test port.



Series 3592 or equivalent.

Figure 2-2. Termination Adapter

HP 16510B Probing Front-panel Reference 2 - 3

The HP 16510B Probing System

The standard HP 16510B probing system consists of probes, pods, probe cable and grabbers. This system is passive (ha s no active circuits at the outer end of the cable). This means that the pods and probes are smaller and lighter, making them easierto use.

The passive probe system is similar to the probe system used with high frequency oscilloscopes. It consists of a series R-C network (90.9 kΩin

parallel with 8 pF) at the probe tip, and a shielded resistive transmission line.

The advantages of this system are:

• 2 ns risetime with ± 5% perturbations

• 8 pF inputcapacitance at the probetip

• signal ground at the probe tip for higher speed timing signals

• inexpensive removable probe tip assemblies

Probes and Probe

Pods

Probe Pod Assembly

Probing HP 16510B 2 - 4 Front-panel Reference

Probes and probe pods allow you to connect the logic analyzer to your system under test without the HP 10269C Probe Interface. This general purpose probing is useful for discrete digital circuits. Each probe and pod assembly contains 16 data channels, one clock channel, and pod ground.

The pods, as they will be referred to for consistency, are the probe housings (as shown below) that group 16 data, one clock line, and grounds, corresponding to a logic analyzer pod.

Figure 2-3. Probe Assembly

Probe Cable The probe pod cable contains 17 signal lines, 34 chassis ground lines and

two power lines that is woven together. It is 4.5 feet long.

Caution The probe grounds are chassis (earth) grounds, not "floating" grounds.

Each cable is capable of carrying 0.67 amps for preprocessor power. Current in excess of 0.67 amps per cable will cause the preprocessor supply voltage to drop below a safe level. DO NOT exceed this 0.67 amps per cable or thepreprocessor may malfunction. Also, the maximum power available from the logic analyzer (all cables) is 2 amps at 5 volts.

Note The preprocessor power source is fused. The fuse is located inside the HP

16500A on the logic analyzer card. If a preprocessor appears to be malfunctioning, refer to the HP 16510B service manual for instructions on checking this fuse.

The probe cable connects the logic analyzer to thepods, termination adapter, or the HP 10269C General Purpose Probe Interface.

Probes Each probe is a 12-inch twisted pair cable andis connected to the probe

cable at the pod. One end of each probe has a probetip assembly where the input R-C network is housed and a lead that connects to the target system. The other end of the probe has a two-pin connector that connects to the probe cable.

Figure 2-4. Probe Cable

HP 16510B Probing Front-panel Reference 2 - 5

You can connect the probe directly to the test pins on your target system. To do so, the pins must be 0.63 mm (0.025 in.) square pins or round pins with a diameter of between 0.66 mm (0.026 in.) and 0.84 mm (0.33 in.).

Each probe has an input impedance of 100 kΩ in parallel with approximately 8 pF.

Figure 2-5. Probe Input Circuit

Probescanbegroundedinoneoftwoways:acommonpodgroundanda probe ground for each probe.

Grabbers The grabbers have a hook that fits around IC pins and component leads

and connects to the probes and the ground leads. The grabbers have been designed to fit on adjacent IC pins.

Pod Grounds Eachpodisgroundedbyapodgroundleadthatshouldalwaysbeused.

You can connect the ground lead directly to a ground pin on your target system or use a grabber. The grabber connects to the ground lead the same way it connects to the probe lead.

To connect the ground lead to grounded pins on your target system, the pins must be 0.63 mm (0.025 in.) square pins or round pins with a diameter of 0.66 mm(0.026 in.) to 0.84 (0.033 in.).

Probing HP 16510B 2 - 6 Front-panel Reference

Probe Grounds You can ground the probes in one of two ways. You can ground the

probes with the pod ground only; however, the ground path won’t be the same length as the signal path through the probe. If your probe ground path must be the same as your signal path, use the short ground lead (probe ground). The probe ground lead connects to the molded probe body via a pin and socket. You can then use a grabber or grounded pins on your target system thesame way as the pod ground.

Figure 2-6. Probe Grounds

Note For improved signal fidelity, use a probe ground for every four probes in

addition to the pod ground.

If you need additional probe ground leads, order HP part number 01650-82103 from your nearest Hewlett-Packard sales office.

HP 16510B Probing Front-panel Reference 2 - 7

Signal Line Loading

Any signal line you intend to probe must be able to supply a minimum of 600 mV tothe probe tip, which has an input impedance of 100 kΩ shunted

by 8 pF. If the signal line is incapable of this, you will not only have an incorrect measurement but the system under test may also malfunction.

Maximum Probe

The maximum input voltage of each probe is ± 40 volts peak.

Input Voltage

Pod Thresholds There are two preset thresholds and a user-definable pod threshold for

each pod. The two preset thresholds are ECL (−1.3 V) and TTL (+1.6 V). The user-definablethreshold can beset anywhere between

−9.9 volts and + 9.9 volts in 0.1 volt increments. The pod thresholds of pods 1, 2, and 3 can be set independently. The pod

thresholds of pods 4 and 5 are slaved together; therefore, when you set the threshold o n either pod 4 or 5, both thresholds will be the same.

Connecting the Logic Analyzer to the Target System

There are four ways you can connect the logic analyzer to your target system as previously mentioned at the beginning of this chapter: the probes (general purpose probing); the HP 10320CUser-definable Interface; the HP 10269C with microprocessor specific preprocessor modules; and direct connection to a20 pin 3M connector using the optional termination adapter (HP Part No. 01650-63201).

Since the probe interface hook-ups are microprocessor specific, they will be explained in their respective operating notes. The rest of this chapter is dedicated to general purpose probing with the HP 16510B probes.

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Probing HP 16510B 2 - 8 Front-panel Reference

Connecting the Probe Cables to the Logic Analyzer

The probe cables are installed in the Logic Analyzer module at the factory. The cable for pod 1 is the far left cable (rear view). Cables 2 through 5 follow cable 1 consecutively from left to right. If there is a need to install or replace the cables refer the HP 16510B Service Manual.

Connecting the Pods to the Probe Cable

The pods of the HP 16510B differ from other logic analyzers in that they are passive (have no active circuits at the outer end of the cable). The pods, as they will be referred to for consistency, are the connector bodies (as shown below) that the probes are installed in when you receive your logic analyzer.

Figure 2-7. Connecting Pods to Probe Cables

Toconnectapodtoacable,youalignthekeyonthecableconnectorwith the slot on the pod connector and push themtogether.

HP 16510B Probing Front-panel Reference 2 - 9

Disconnecting the Probes from the Pods

The probes are shipped already installed in the pods. However, you can disconnect any un-used probes from any of the pods. This keeps the un-used probes from getting in your way.

To disconnect a probe, insert the tip of a ball-point pen in the latch opening and push while gently pulling the probe out of the pod connector as shown below.

Figure 2-8. Disconnecting Probes from Pods

You connect the probes to the pods by inserting the double pin end of the probe into the pod.The probes and pod connector body are both keyed (beveled) so that they will fit together only one way.

Probing HP 16510B 2 - 10 Front-panel Reference

Connecting the Grabbers to the Probes

You connect the grabbers to the probes by slipping the connector at the end of the probe onto the recessed pin in the side of the grabber. If you need to use grabbers for either the podor the probe grounds, connect them to the ground leads the same way you connect them to the probes.

Figure 2-9. Connecting Grabbers to Probes

Connecting the Grabbers to the

The grabbers have a hook that fits around IC pins and component leads. You connect the grabber by pushing therear of the grabber to exposethe hook, hooking the lead and releasingyour thumb as shown below.

Test Points

Figure 2-10. Connecting Grabbers to Test Points

HP 16510B Probing Front-panel Reference 2 - 11

Labeling Pods, Probes, and Cables

So you can find the pods and probes you want to connect to your target system, you need to be able to quickly identify them. Included with your logic analyzer are self-adhesive labels for each pod, cable and probe.

They come in sets. Each set has labels for the end of the cable-- a label for the pod connector body, a label for the clock probe and 16 labels for each of the channels.

One e nd of each cable is already connected to the HP 16510B logic analyzer module. The cable for pod 1 is the far left cable (rear view). Cables2through5followcable1consecutivelyfromlefttoright.

Figure 2-11. Labeling Pods, Probes, and Cables

Probing HP 16510B 2 - 12 Front-panel Reference

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