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Agilent Technologies 1670G - page 385

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Logic Analyzer Concepts

Contents

Main Agilent Technologies 1670G-Series Logic Analyzers Logic Analyzer Features Page In This Book Page Page Managing Memory 89 5 Triggering Examples Triggering Examples 96 Single-Machine Trigger Examples 97 Cross-Arming Trigger Examples 118 Page Oscilloscope Common Menus 152 The Scope Channel Menu 157 The Scope Display Menu 160 The Scope Trigger Menu 164 The Scope Marker Menu 176 The Scope Auto Measure Menu 188 Building Test Vectors and Functions 200 Page Page Page Page Page Error Messages 432 13 Specifications General Information 438 14 Operators Service Operators Service 454 Page Page Page Page The OMF Symbol File Load Menu 593 The OMF Symbol Browser Menu 600 Index The General-Purpose ASCII File Format 609 Page Page Page Page Agilent Technologies 1670G-Series Logic Analyzer Select Key Done Key Shift Key Knob Page To make a measurement Connect probes Set type Page Set up trigger Define terms Configure Arming Control Set up trigger sequence Page Page Make measurements Page Connecting Peripherals Mouse and Keyboard Printers To connect a mouse To connect a keyboard To connect to an GPIB printer Page To connect to an RS-232-C printer Page To connect to a parallel printer To connect to a controller Page Page Accessing the Menus To access the System menus Page To access the Analyzer menus 1Select the mode field. 2Select Analyzer. 3Select the menu field. Page Using the Analyzer Menus To label channel groups Page Page Page To create a symbol Page To examine an analyzer waveform Page Page To examine an analyzer listing 1In Analyzer mode, press the Run key to acquire data. 2Go to the Analyzer Listing menu. Page Page To compare two listings Page The Inverse Assembler To use an inverse assembler Page Page Page Using the Trigger Menu Specifying a Basic Trigger To assign terms to an analyzer Page To define a term To change the trigger specification Page Changing the Trigger Sequence To add sequence levels Page To change trigger functions Setting Up Time Correlation between Analyzers To set up time correlation between two state analyzers To set up time correlation between a timing and a state analyzer Arming and Additional Instruments To arm another instrument Page Page To receive an arm signal from another instrument Page Managing Memory To selectively store branch conditions (state only) To set the memory length 1In the Analyzer Trigger menu, select Acquisition Control. 2Select the Memory Length field. 3Select Done to exit the Acquisition Control menu. To place the trigger in memory To set the sampling rates (Timing only) Page Triggering Examples Single-Machine Trigger Examples To store and time the execution of a subroutine Page To trigger on the nth iteration of a loop The specification has some advantages and a potential problem. To trigger on the nth recursive call of a recursive function Page To trigger on entry to a function Page To capture a write of known bad data to a particular variable To trigger on a loop that occasionally runs too long To verify correct return from a function call To trigger after all status bus lines finish transitioning To find the nth assertion of a chip select line To verify that the chip select line is strobed after the address is stable To trigger when expected data does not appear when requested Page To test minimum and maximum pulse limits Page To detect a handshake violation To detect bus contention Cross-Arming Trigger Examples To examine software execution when a timing violation occurs Page To look at control and status signals during execution of a routine To detect a glitch To capture the waveform of a glitch using the oscilloscope (oscilloscope option only) To view your target system processing an interrupt (oscilloscope option only) To trigger timing analysis of a count-down on a set of data lines To monitor two coprocessors in a target 7Check that the second analyzer is triggering on arm and that Count Time is set. Special Displays Interleaved trace lists Mixed Display mode To interleave trace lists 8Select the name of the other analyzer and the label to interleave. To view trace lists and waveforms on the same display Page Page File Management Transferring Files Using the Flexible Disk Drive To save a configuration Page To load a configuration Page To save a trace list in ASCII format To save a screens image To load additional software Transferring Files Using the LAN To transfer files using ftp Page Page Calibrating the oscilloscope Calibration PROTECT/UNPROTECT switch Set up the equipment Load the default calibration factors Self Cal menu calibrations Page Protect the operational accuracy calibration factors Oscilloscope Common Menus Run/Stop options Single and Repetitive modes Autoscale run Page Autoscale What the Autoscale algorithm does when a signal is found Menus and fields changed by the Autoscale algorithm Time ba se s/Div field Delay field The Scope Channel Menu Offset field Probe field Probe attenuation factor Coupling field Coupling field selections Page The Scope Display Menu Mode field Normal mode Average mode Accumulate mode Connect Dots field Grid field Display Options field Set Channel Labels Display Sample Period Display Marker Values The Scope Trigger Menu Trigger marker Mode/Arm menu Edge trigger mode Pattern Immediate trigger mode Level field Page Source field Slope field Count field Auto-Trig field On When field Pattern When condition pop-up menu Page Page Count field The Scope Marker Menu Manual time markers options Tx to To field Trig to X and Trig to O fields T Marker value display Page Automatic time markers options Set on field Typ e fi el d at Level field Slope field Occur field Statistics field On Run Until Time X-O field Less Than field Page Manual/Automatic Time Markers option Setting the Manual/Automatic Time Markers Option Voltage Markers options Va On fiel d Va Vol ts fi eld Va to Vb field Center Screen Field V Marker value display Channel Label field The Scope Auto Measure Menu Input field Automatic measurements display Measurement setup requirements Criteria used for making automatic measurements Automatic measurement algorithms Top and base voltages Measurement algorithms Page Page Page Using the Pattern Generator Setting Up the Proper Configurations To set up the configuration Page To build a label Page To build a main vector sequence To build an initialization sequence Page To include hardware instructions in a sequence To include software instructions in a sequence To include a user macro in a sequence To build a user macro Page To add, delete, or rename parameters To place parameters in a vector To enter or modify parameters To build a User Symbol Table To include symbols in a sequence To include symbols in a function To store a configuration Page To use Autoroll The Format Menu Clock Source Clock Period (internal clock source) Clock Frequency (external clock source) Clock Out Delay Symbols Vect or Ou tpu t Mod e Page The Sequence Menu INIT and MAIN Sequences Step Delete Merge Copy Insert Instructions Page Page Data Field Autoroll Memory Used The User Macros Menu Function 0 (current function field) Add/Delete Function Using Parameters Loading ASCII Files ASCII File Commands ASCDown Command LABel VECTor Vector Data Page FORMat:xxx Loading an ASCII file over a bus (example) To load an ASCII file over the bus use the following example. A few items to be noted: Notes Format Specification Pattern Generator Probing System Pod Numbering Page 1670G-Series Logic Analyzer Description Page 1670G-Series Configuration Capabilities State Analyzer Configuration Considerations Timing Analyzer Configuration Considerations Probing Probing Options Microprocessor and Bus-Specific Interfaces General-Purpose Probing The Termination Adapter General-purpose probing system description Probe Tip Assemblies Probe and Pod Grounding Probe Leads Grabbers Probe Cable Minimum Signal Amplitude Page Page Page Disconnecting Probe Leads from Probe Tip Assemblies Page Oscilloscope probes (oscilloscope option only) Probe Inputs Maximum Probe Input Voltage Calibration Outputs Connecting the pattern generator pods directly to a PC board (pattern generator option only) Direct pod to board connection Jumper cable to pod connection Pattern generator output pod characteristics (pattern generator option only) Agilent Technologies 10461A TTL Data Pod Agilent Technologies 10462A 3-State TTL/CMOS Data Pod Page Agilent Technologies 10466A 3-State TTL/3.3 Volt Data Pod Data Cable Characteristics Without a Data Pod Agilent Technologies 10460A TTL Clock Pod Agilent Technologies 10463A ECL Clock Pod Keyboard Shortcuts Moving the cursor Keyboard cursor movement Page Up and Page Down keys Selecting a menu item Entering data into a menu Using the keyboard overlays Common Menu Fields Print field Print Screen Print Disk Print All Print Partial Run/Stop field Repetitive Roll fields Disk Drive Operations Disk operations Page Disk operation safeguards Autoload Format Pack Load and Store All System Analyzer Page The RS-232-C, GPIB, and Centronics Interfaces Default Setup Controller interface Printer interface The GPIB interface The RS-232-C interface Baud rate Stop Bits Parity Data Bits The Centronics interface The Ethernet LAN interface Page Page System Utilities Real Time Clock Adjustments field Update FLASH ROM field Page Display Color Selection The Color Model: Hue, Saturation, and Luminosity Page Page The Analyzer Configuration Menu Type fie ld Illegal configuration The Analyzer Format Menu Pod threshold field State acquisition modes Full Channel/64K Memory/150 MHz Half Channel/128K Memory/150 MHz Timing acquisition modes Conventional Acquisition Mode Acquisition modes Clock Inputs Display Pod clock field (State only) Master Slave Page Demultiplex Master and Slave Clock fields (State only) Clock selections Page Setup/Hold field Symbols field Label field Base field Symbol Width field Symbol name field Typ e fi el d Label fields Label polarity fields The Analyzer Trigger Menu Trigger sequence levels Sequence level usage Modify Trigger field Break Down Functions / Restore Functions Timing trigger function library Page State trigger function library Page Page Modifying the user function Using bit patterns, ranges, and edges Using storage qualification Setting < and > durations (Timing only) Using the Occurrence Counters Using the timer Branching Page Resource terms Bit pattern terms a-j Range terms 1 and 2 Edge terms 1 and 2 (Timing only) Global timers 1 and 2 Assigning resource term names and values Using Preset Values Assigning Bit by Bit Combination of terms Arming Control field Arming control between analyzers Arming control using external BNCs Page Acquisition Control field Acquisition Mode field Memory Length Trigger Position field Delay (Timing only) Branches Taken Stored / Not Stored field Count field (State only) Time and State tags The Listing Menu Markers Pattern markers State analyzer markers Timing analyzer markers Stop measurement field Statistics markers The Waveform Menu sec/Div field Accumulate field Delay field Waveform label field Viewing state values in the bus option Wavef orm d ispla y The Mixed Display Menu Interleaving state listings Page The Chart Menu Label vs. Label charts Label vs. State charts Min and Max scaling fields Markers/Range field Axis Control field Rescale field The Compare Menu Reference Listing field Difference Listing field Copy Listing to Reference field Find Error field Compare Full/Compare Partial field Mask field Bit Editing field Page System Performance Analysis Software Page What is System Performance Analysis? Operating characteristics State Overview State Histogram Time Interval Getting started Accessing the menus Selecting State Overview, State Histogram, or Time Interval modes Setting up the State Format specification SPA measurement processes Selecting and changing trace modes Sampling methods and data sorting Selecting and changing labels State Overview mode Page Page State Histogram mode Page Page Page Time Interval mode Page Page Page Page Page Page Using State Overview, State Histogram, and Time Interval Setting up the logic analyzer Using State Overview mode Specifying Low and High values Interpreting the histogram display Using State Histogram mode Page Page Using Time Interval mode Specifying an event Page Page Page Using SPA with other features Programming with SPA Changing between SPA and a State/Timing Analyzer Using SPA in Group Runs Page Page The File System Directories Hard disk drive Flexible disk drive File types Standard file types Filename endings The Trigger Sequence Trigger sequence specification Sequence-advance specification Page Analyzer resources Page Page Page Page Timing analyzer State analyzer Configuration Translation Between Agilent Logic Analyzers Page The Analyzer Hardware Page CPU board System memory Keypad and knob interface GPIB interface RS-232-C interface Power supply Page Page Probing Comparators Acquisition Threshold Test and clock synchronization circuit Page Attenuator/Preamp theory of operation Oscilloscope acquisition Page Page Analog Interface Pattern Generator board theory Loop Register RAM Output Driver Clock Circuit CPU Interface Pod Self-tests description Page Troubleshooting the Logic Analyzer Analyzer Problems Intermittent data errors Unwanted triggers No activity on activity indicators Capacitive loading No trace list display Analysis Probe Problems Target system will not boot up Slow clock Erratic trace measurements Inverse Assembler Problems No inverse assembly or incorrect inverse assembly Page Inverse assembler will not load or run You need to ensure that you have the correct system software loaded on your analyzer. Error Messages ". . . Inverse Assembler Not Found" "No Configuration File Loaded" "Selected File is Incompatible" "Slow or Missing Clock" "Waiting for Trigger" Page Page Page Page General Information Accessories Page Specifications (logic analyzer) Specifications (oscilloscope option) Characteristics (logic analyzer) Channel count: Characteristics (oscilloscope) Characteristics (pattern generator) Page Supplemental characteristics (logic analyzer) Probes State analysis Timing analysis Triggering Measurement and display functions Measurement functions Indicators Data entry/display Marker functions Auxiliary power Supplemental characteristics (oscilloscope) Triggering: Trigger Modes: Operating environment Page Operators Service Preparing For Use Power requirements Operating environment Storage To inspect the logic analyzer To apply power To clean the logic analyzer To test the logic analyzer Troubleshooting Page Page To check the power-up tests To run the self-tests Page Page Page Page Page Page Page Page To test the auxiliary power Equipment Required Page Page Page Page Introducing the LAN Interface Requirements Characteristics Page LAN section overview Page Connecting and Configuring the LAN To connect to your network To configure the network addresses 2Set up the LAN Settings menu. 3If necessary, add the logic analyzer to your local network configuration. To verify connectivity with the ping utility To mount the logic analyzer Page Page Page Accessing the Logic Analyzer File System Using the LAN Control User vs. Data User Control User Data User Password and File Protection To mount the file system via NFS From Computers Running the UNIX Operating System Page From Computers Running the MS-DOS Operating System Page Page To access the file system via ftp Page Using the LANs X Window Interface Using the Mouse and Keyboard Duplicating Front-Panel Knob Control To start the interface from the front panel Page To start the interface from the computer 1On your Xserver, enable analyzer-initiated windows. 2Send the XWIN ON programming command to the logic analyzer. Page Page To close the interface 1Go to the System External I/O menu. 2Select the Disconnect field. From a Remote Computer To load the custom fonts Page Page Additional Information Color Window Dimensions and Content Page Retrieving and Restoring Data Using the LAN To copy ASCII measurement data To copy raw measurement data To restore raw measurement data 1Access the analyzers file system as the control user. 2Copy the data.raw file to the appropriate \slot_{x} directory. To strip LIF structure from raw measurement data The data.raw File Format Page To copy screen images from \system\graphics To copy status information from \status 1Access the logic analyzers file system. Refer to the chapter "Accessing the Logic Analyzer File System". 2Copy the appropriate file from the \status directory. The \status directory contains the following ASCII files: Page To copy configurations from setup.raw 1Set up the configuration. 2Access the logic analyzers file system. 3Copy the setup.raw file from the appropriate directory. Dynamic Configuration Files To restore configurations 1Access the logic analyzers file system as the control user. 2Copy the setup.raw file to the appropriate directory. Page Programming the Logic Analyzer Using the LAN The Command Parser Socket Page To enter commands directly using telnet Page To write programs that open the command parser socket Page Page Page Page Directory structure of the logic analyzers file Analyzer (\slot_a) Subdirectories and Files {Root} slot_a system status Page Dynamic files Known Incompatibilities SUN Operating Systems LAN-related fields in the logic analyzers menus Controller Connection X-Window Box LAN Settings Time Zone Field Page Page Troubleshooting the Initial Connection Assess the problem Timeout errors Packets routinely lost Problems transferring or copying files Communications not established Page Troubleshooting in a workstation environment Page Troubleshooting in an MS-DOS environment Page Troubleshooting in an MS Windows environment Page Verify the logic analyzer performance Page Status Number The following table describes each bit in the status number. Page Network Status Information Page Solutions to Common Problems If you cannot connect to the logic analyzer If you cannot mount the logic analyzer file If you cannot access the file system via ftp If you cannot start the XWindow interface If your X Window looks odd If you cannot copy files from the logic analyzer If you cannot restore raw files If you get an "operation timed-out" message If the logic analyzer begins to operate slowly If the logic analyzer does not respond Page Getting Service Support Return to Agilent service Page Page Page Page Symbol Utility Introduction Equipment Required Supported Symbol File Formats Page Symbol Utility section overview Page Page Getting Started with the Symbol Utility Page Page Page Page To Access the Symbol Browser Page Page To generate a symbol file To Load a Symbol File Page Page Page Page Page Page Page Page To Remove a Symbol File From the System Page Symbol Utility Features and Functions Page OMF File Field Refresh Field Drive Field Page Load Field OMF file versions Multiple files Current Loaded Files Field View Field Section Relocation Option Set Absolute Section Location Offset This Section Offset All Sections The OMF Symbol Browser Menu Symbol Format Symbol Type Selection Field (User vs. OMF) Find Field Asterisk wildcard (*) Question mark wildcard (?) Browse Results Display Scroll Files field Align to xx Byte Option Offset Option Context Display Address Display Symbol Mode Field The Scroll Files Field Line Number Field Page Creating a GPA Symbol File Simple Format GPA File Format Page Sections Page Functions Varia bles Source Line Numbers Start Address Comments Page Page Page Page Page Page Page Page Page Page Page Page DECLARATION OF CONFORMITY Product Name: Model Number(s): Product Option(s): Product Regulations

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