Main
Agilent Technologies 16760A Logic Analyzer
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Choosing the Sampling Mode 43
Formatting Labels for Logic Analyzer Probes 57
3 Using the Logic Analyzer in Timing or State Mode Setting Up Triggers and Running Measurements 69
Displaying Captured Data 94
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The Eye Scan Tab 204
The Calibration Tab 210 Error Messages 211
Specifications and Characteristics 227
6 Concepts Understanding Logic Analyzer Triggering 240
Understanding State Mode Sampling Positions 256 Understanding Eye Scan Measurements 259
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Probing and Sampling Mode Selection Steps
Step 1. Connect logic analyzer to the device under test
Step 2. Choose the sampling mode
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Next: Step 3. Format labels for the probed signals on page19
Step 3. Format labels for the probed signals
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Next:
Timing Mode or State Mode Steps
Step 4. Define the trigger condition
Step 5. Run the measurement
Step 6. Display the captured data
Next: For More Information... on page31
Eye Scan Mode Steps
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Next: Step 6. Run the eye scan measurement on page28
Step 6. Run the eye scan measurement
Step 7. Display the captured eye scan data
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For More Information...
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Probing the Device Under Test
Using the E5378A Single-Ended Probe
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Using the E5379A Differential Probe
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Using the E5380A Mictor-Compatible Probe
Using the E5382A Single-ended Flying Lead Probe Set
Using an Analysis Probe
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Choosing the Sampling Mode
Selecting the Timing Mode (Asynchronous Sampling)
To select the timing mode
You can also select the timing sampling mode in the Pod Assignment Dialog on page 175.
To select the conventional/transitional configuration
To specify the sample period
The sample rate is the inverse of the sample period.
Selecting the State Mode (Synchronous Sampling)
To select the state mode
You can also select the state sampling mode in the Pod Assignment Dialog on page 175.
To select the state speed configuration
To set up the sampling clock
For the clock input signal that will be used:
To automatically adjust sampling positions
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To manually adjust sampling positions
In Either Timing Mode or State Mode
To specify the trigger position
To set acquisition memory depth
To name an analyzer
To turn an analyzer off or on
Selecting the Eye Scan Mode
To select the eye scan mode
To select the eye scan mode speed configuration
To set up the eye scan mode reference clock
For the clock input signal that will be used:
Formatting Labels for Logic Analyzer Probes
To assign pods to the analyzer
To set pod threshold voltages
To set clock threshold voltages
To assign probe channels to labels
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To import label names and assignments from a netlist
To import label definitions from an ASCII file
To export label definitions to an ASCII file
To change the label polarity
Changing the label polarity will have the following effects:
Changing the label polarity does not affect:
To reorder bits in a label
To turn labels off or on
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Setting Up Triggers and Running Measurements
Using Trigger Functions
To select a trigger function
To specify a label pattern event (Timing only)
Label pattern events let you specify patterns or ranges on a bus.
To specify a label edge event
To break down a trigger function (timing or 200 Mb/s state only)
Expanded trigger functions can be compressed back into their original form.
To create a trigger function library (timing or 200 Mb/s state only)
Once you have created a trigger function library with trigger functions, you can:
Using Other Trigger Features
To count time, states, or turn counting off
pod to be left unassigned.
To specify default storing
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To specify whether default storing is initially on or off
Editing the Trigger Sequence (Timing or 200, 400 Mb/s State Only)
To insert/replace/delete sequence levels
To cut/copy-and-paste sequence levels
To specify a level's goto or trigger action (timing or 200 Mb/s state only)
To send e-mail when the trigger occurs (timing or 200 Mb/ s state only)
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To view a picture of the trigger sequence
To clear the trigger sequence
Editing Advanced Trigger Functions (Timing or 200 Mb/s State Only)
To specify a duration or occurrence count for events
To insert a store action (state mode)
To insert timer actions/events
To insert counter actions/events
To insert flag actions/events
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To insert a "reset occurrence counter" action
To group events
To use named events
Saving/Recalling Trigger Setups
You can save a trigger setup within a session by using trigger save/ recall.
To save a trigger setup
To recall a trigger setup
To clear the trigger save/recall list
Running Measurements
To start/stop measurements
If nothing happens when you start a measurement
To view the trigger status
Displaying Captured Data
To open Waveform or Listing displays
To use other display tools
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If the captured data doesn't look correct
If there are filtered data holes in display memory
To display symbols for data values
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Using Symbols
To load object file symbols
To adjust symbol values for relocated code
To create user-defined symbols
To enter symbolic label values
When entering label values in the trigger sequence:
To create an ASCII symbol file
General-purpose ASCII symbol files are created with text editing/ processing tools.
To create a readers.ini file
If a file only has an ELF section this will have no effect and the ELF
This option must be specified in the Nsr section of the Readers.ini file:
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Printing/Exporting Captured Data
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Cross-Triggering
To cross-trigger with another instrument
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Solving Logic Analysis Problems
To test the logic analyzer hardware
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Saving and Loading Logic Analyzer Configurations
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Setting Up and Running Eye Scan Measurements
To select channels for the eye scan
To set the eye scan range and resolution
To run an eye scan measurement
To set advanced eye scan options
To set up qualified eye scan measurements
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To comment on the eye scan settings
Displaying Captured Eye Scan Data
To open the Eye Scan display
To select the channels displayed
To scale the Eye Scan display
To set Eye Scan display options
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To change the Eye Scan color scale
Similarly, you can use the top slider bar or enter a number in the text
To make measurements on the eye scan data
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To display information about the eye scan data
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To comment on the eye scan data
Saving and Loading Captured Eye Scan Data
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The Sampling Tab
The Sampling tab lets you choose between the logic analyzer's:
Timing Mode
When you select Timing Mode, the Timing Mode Controls area appears.
How Samples are Stored in Transitional Timing
State Mode
When you select State Mode, the State Mode Controls area appears.
Sampling Positions Dialog
Sampling Positions Tab
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Eye Finder Setup Tab
Eye Finder Advanced Settings Dialog.
Some things to consider when selecting among the eye finder advanced settings are:
File Info Tab
Eye Scan Mode
When you select Eye Scan Mode, the Eye Scan Mode Controls area appears.
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The Format Tab
Pod Assignment Dialog
The Trigger Tab
Trigger Functions Subtab
General Timing Trigger Functions
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General State Trigger Functions
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Advanced Trigger Functions
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Turbo State Trigger Functions
16760 State Trigger Functions
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16760 Half Channel State Trigger Functions
Settings Subtab
Overview Subtab
This tab gives a picture of the trigger sequence.
Default Storing Subtab
Status Subtab
Save/Recall Subtab
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The Symbols Tab
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Symbols Selector Dialog
Search Pattern
Offset By Option
Align to x Byte Option
Symbol File Formats
General-Purpose ASCII (GPA) Symbol File Format
GPA Record Format Summary
records.
SECTIONS
Use SECTIONS to define symbols for regions of memory, such as sections, segments, or classes.
FUNCTIONS
Use FUNCTIONS to define symbols for program functions, procedures or subroutines.
VARIABLES
You can specify symbols for variables using:
If you specify only the address of a variable, the size is assumed to be 1 byte.
SOURCE LINES
Use SOURCE LINES to associate addresses with lines in your source files.
START ADDRESS
Comments
The Eye Scan Tab
Labels Subtab
Scan Settings Subtab
Advanced Subtab
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Qualifier Subtab
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The Calibration Tab
All 16760A logic analyzer cards must be calibrated to ensure conformance to specifications.
Error Messages
Analyzer armed from another module contains no "Arm in from IMB" event
Branch expression is too complex
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If the following sequence does not compile:
This one may:
If the following sequence does not compile:
This one may:
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Cannot specify range on label with clock bits that span pod pairs
Counter value checked as an event, but no increment action specified
Goto action specifies an undefined level
Hardware Initialization Failed
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No more Pattern resources available for this pod pair
No Trigger action found in the trace specification
Slow or Missing Clock
Timer value checked as an event, but no start action specified
Trigger function initialization failure
Trigger inhibited during timing prestore
Trigger Specification is too complex
Combiner resource allocation guidelines:
Waiting for Trigger
Some strategies you can use when verifying or debugging trigger sequence levels are:
Specifications and Characteristics
E5378A Single-Ended Probe Specifications and
E5378A Input Equivalent Circuit
E5379A Differential Probe Specifications and
E5379A Input Equivalent Circuit
E5380A MICTOR-Compatible Probe Specifications and Characteristics
E5380A Input Equivalent Circuit
1500 Mb/s Sampling Mode Specifications and
1250 Mb/s Sampling Mode Specifications and
800 Mb/s Sampling Mode Specifications and
400 Mb/s Sampling Mode Specifications and
200 Mb/s Sampling Mode Specifications and
Conventional Timing Mode Specifications and
Transitional Timing Mode Specifications and
What is a Specification?
What is a Characteristic?
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Understanding Logic Analyzer Triggering
The Conveyor Belt Analogy
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Summary of Triggering Capabilities
Sequence Levels
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Boolean Expressions
Branches
Edges
Ranges
Flags
Occurrence Counters and Global Counters
Timers
Storage Qualification
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Strategies for Setting Up Triggers
Trigger Functions
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Setting Up Complex Triggers
Document Your Trigger Sequences
Conclusions
Understanding State Mode Sampling Positions
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Understanding Eye Scan Measurements
