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HP E2466C User Manual

HP E2466C User Manual

Preprocessor interface for the intel pentium ii processor
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  • Page 1 Agilent Test & Measurement website, www.tm.agilent.com. HP References in this Manual This manual may contain references to HP or Hewlett-Packard. Please note that Hewlett-Packard's former test and measurement, semiconductor products and chemical analysis businesses are now part of Agilent Technologies. We have made no changes to this manual copy.
  • Page 2 User’s Guide Publication number E2466-97006 First Edition, July 1997 For Safety information, Warranties, and Regulatory information, see the pages behind Appendix A © Copyright Hewlett-Packard Company 1997 All Rights Reserved HP E2466C Preprocessor Interface for the Intel Pentium® II Processor...
  • Page 3 HP E2466C Preprocessor Interface to provide simultaneous bus analysis. For instruction disassembly, Branch Trace Messages must be enabled and caches must be disabled. This requires a Pentium II processor run-control tool (such as the HP E3493A) and a 30-pin debug port on the target system. Logic Analyzer 16500B...
  • Page 4 HP 16505A Prototype Analyzer, and the preprocessor interface hardware, which connects to the target system and processes the signals. For more information on the supported logic analyzers, the HP 16505A, or the microprocessor, refer to the appropriate reference manuals for those products.
  • Page 5 In This Book This book is the user’s guide for the HP E2466C Preprocessor Interface. It assumes that you have a working knowledge of the logic analyzer used and the microprocessor being analyzed. This user’s guide is organized into three chapters and one appendix: Chapter 1 explains how to set up and configure the preprocessor interface and logic analyzer for state or timing analysis.

  • Page 6: Table Of Contents

    To select the operating mode 1–5 To disassemble the S.E.C. cartridge 1–7 To connect to the target system 1–9 To connect to the HP 16550A two-card analyzer 1–13 To connect to the HP 16554/55/56 analyzers 1–14 To power up or power down 1–15 To protect the preprocessor interface when not in use 1–15...
  • Page 7 Signal line loading 3–5 Modes of operation 3–6 State Mode Operation 3–6 State Mode Clocking 3–6 Timing Mode Operation 3–7 HP E2466C Block Diagram 3–8 Signal-to-Connector Mapping 3–9 Circuit Board Dimensions 3–21 Repair Strategy 3–23 A If You Have a Problem Analyzer Problems A–3...
  • Page 8 Contents Preprocessor Problems A–5 Target system will not boot up A–5 Erratic trace measurements A–6 Capacitive loading A–6 Transaction Tracker/Inverse Assembler Problems A–7 No transaction tracking or incorrect transaction tracking A–7 Transaction tracker/inverse assembler will not load or run A–8 Transaction tracker/inverse assembler errors and warnings A–8 ******** ******** (no data displayed in the transaction display) A–8 ? (appears next to a disassembled instruction) A–8...
  • Page 9 Figure 15. Listing Menu Showing End of Boundary 2–13 Figure 16. HP 16505A Pentium II Filter Dialog 2–15 Figure 17. HP 16505A Pentium II Preferences Dialog 2–17 Figure 18. HP 16505A Listing window for Software Analysis 2–18 Figure 19. Reset Configuration 2–20 Figure 20. Signal Line Loading 3–5 Figure 21.

  • Page 10: Setting Up The Preprocessor Interface

    Setting Up the Preprocessor Interface...
  • Page 11 Setting Up the Preprocessor Interface This chapter explains how to set up the HP E2466C Preprocessor Interface hardware and software, configure the preprocessor, and connect the preprocessor to supported logic analyzers. It also contains information on setting up the HP 16505A Prototype Analyzer for use with the HP E2466C Preprocessor Interface and using the HP E2467A APIC Bus Preprocessor Interface.

  • Page 12: Before You Begin

    Intel’s S.E.C. Cartridge Disassembly Application Note. • One of the logic analyzers listed in the table on page ii, in an HP 16500B/C Logic Analysis Mainframe. For instruction disassembly, Branch Trace Messages must be enabled and instruction caches must be disabled.
  • Page 13 Before You Begin Additional Capabilities/Equipment Required For APIC Bus analysis, the HP E2467A APIC Bus Preprocessor Interface can be used with the HP E2466C. Additional configuration software for increased analysis of Pentium II processor target systems is available with the appropriate Intel non-disclosure forms.

  • Page 14: Setting Up The Preprocessor Interface Hardware

    To select the operating mode Two switches on the preprocessor select the operating mode. The LEDs indicate the selected mode (see table 1). The HP 16505A Prototype Analyzer must also be updated to match the Mode (state or timing) selected by the switches.

  • Page 15: Table 1. Led Indicators For Operating Mode

    Setting Up the Preprocessor Interface Hardware To select the operating mode Refer to Chapter 3, section "Modes of Operation", for more details on the preprocessor operating modes and clock qualifiers. Table 1. LED Indicators for Operating Mode LEDs Lit MODE QUAL Operating Mode/Clock Qualifier Switch...

  • Page 16: To Disassemble The S.e.c. Cartridge

    Setting Up the Preprocessor Interface Hardware To disassemble the S.E.C. cartridge To disassemble the S.E.C. cartridge The S.E.C. cartridge consists of a thermal plate, skirt, cover, and microprocessor card. The thermal plate, skirt, and cover must be removed to access the processor card. Detailed instructions for disassembling the S.E.C.
  • Page 17 Setting Up the Preprocessor Interface Hardware To disassemble the S.E.C. cartridge Using the instructions in the Intel S.E.C. Cartridge Disassembly Application Note, insert a 1/8" small flat blade screwdriver between the cover and the thermal plate, next to one of the four barbed posts located at each corner of the thermal plate.

  • Page 18: To Connect To The Target System

    Setting Up the Preprocessor Interface Hardware To connect to the target system To connect to the target system The probe end of the preprocessor connects directly to the microprocessor on the target system. To prevent equipment damage, remove power from both the logic analyzer and the target system.
  • Page 19 Setting Up the Preprocessor Interface Hardware To connect to the target system Place the probe end of the preprocessor interface onto the interposer using the three alignment pins as shown in the figure below. Figure 6 Aligning the Probe End 1-10 Preprocessor Interface for the Pentium II Processor...
  • Page 20 Setting Up the Preprocessor Interface Hardware To connect to the target system Loosen the screw on the underside of the bottom clamp. Work the four clamp posts of the bottom clamp through holes in the target system PC board. Slide the clamp on the probe end of the PC board back, then work the four clamp posts on through the preprocessor PC board.
  • Page 21 Preprocessor Connector Numbers and Pin A1 Location C A U T I O N Support the HP E2466C PC board when connecting or disconnecting logic analyzer cables. This will help to prevent damage to the PC board and its components.

  • Page 22: To Connect To The Hp 16550A Two-Card Analyzer

    Setting Up the Preprocessor Interface Hardware To connect to the HP 16550A two-card analyzer To connect to the HP 16550A two-card analyzer Connect the logic analyzer pod cables to the preprocessor interface connectors according to this diagram. Configuration file Use configuration file...

  • Page 23: To Connect To The Hp 16554/55/56 Analyzers

    Setting Up the Preprocessor Interface Hardware To connect to the HP 16554/55/56 analyzers To connect to the HP 16554/55/56 analyzers Connect the logic analyzer pod cables to the preprocessor interface connectors according to this diagram. Configuration file Use configuration file...

  • Page 24: To Power Up Or Power Down

    Setting Up the Preprocessor Interface Hardware To power up or power down To power up or power down When powering up, the logic analyzer must be powered up first, and then the target system. The logic analyzer provides the power to the active circuits on the preprocessor interface;...

  • Page 25: Setting Up The Preprocessor Interface Software

    The preprocessor interface software consists of one HP 16500B/C Logic Analysis System disk and one HP 16505A Prototype Analyzer disk. The HP 16500B/C disk contains logic analyzer configuration files; the HP 16505A disk contains the transaction tracker and the inverse assembler. 1-16...

  • Page 26: To Copy The Hp 16500B/C Logic Analyzer Files

    "Copy, file: *, to:\<name> on: Hard Disk, Execute". The logic analyzer is configured through the HP 16505A, using the files you have just copied onto the logic analyzer hard drive. Preprocessor Interface for the Pentium II Processor...

  • Page 27: To Load The Hp 16505A Prototype Analyzer Files

    Load the logic analyzer configuration file. Start a session from the Session Manager window. When the main HP 16505A window opens, click on File in the top menu bar to get a pull-down menu, then click on "Load 16500 Files...". Change to the...

  • Page 28: To Set Up The Preprocessor Interface For Timing

    Configure the HP E2466C for timing analysis by setting the MODE switch to the "Up" position. Only the Red LED should be lit. Select the "Pentium II" icon on the HP 16505A, and open the Config menu of the logic analyzer.

  • Page 29: To Connect To The Apic And Jtag Signals

    Do not attempt to use the JTAG header as a run-control interface. This header is only capable of monitoring JTAG activity. The APIC signals can be connected to the HP E2467A APIC Bus Preprocessor Interface. Connectors J5 and J6 on the preprocessor PC board are reserved.

  • Page 30: Table 2. Pin Locations For Apic And Jtag Signals (J5 And J6 Are Reserved)

    To connect to the APIC and JTAG signals To set up the preprocessor interface for timing Figure 10 Pin locations for APIC and JTAG signals Table 2. Pin locations for APIC and JTAG signals (J5 and J6 are reserved) J2 (APIC) J3 (JTAG) Pin # Signal...
  • Page 31 1-22 Preprocessor Interface for the Pentium II Processor...
  • Page 32 Analyzing the Pentium II Processor...

  • Page 33: Analyzing The Intel Pentium Ii Processor

    This chapter describes how to display configuration information and preprocessor interface data, gives label and symbol encodings for the status field, and provides information about the transaction tracker and the inverse assembler, as displayed on the HP 16505A. Preprocessor Interface for the Pentium II Processor...

  • Page 34: Displaying Information

    To set up the HP 16505A workspace To set up the HP 16505A workspace, drag and drop the "Pentium II" Instrument icon into the workspace area. Next, drag and drop a Listing Display on the "Pentium II" Instrument icon in the workspace.

  • Page 35: To Display The Configuration Symbols

    "User Defined Symbols.." The logic analyzer will display the symbols associated with the label. The HP E2466C configuration software sets up symbol tables. The tables contain alphanumeric symbols which identify data patterns or ranges. Labels simplify triggering on specific Pentium II processor cycles. The label base in the symbols menu is set to hexadecimal to conserve display space.

  • Page 36: Table 3. Signal/Label List

    Displaying Information To display the configuration symbols The first of the following tables describes the Pentium II processor signals that are captured by the preprocessor. The second table lists the label and symbol encodings defined by the logic analyzer configuration software. Under the heading "Polarity", negative means that the logic analyzer inverts N o t e the signal.
  • Page 37 Displaying Information To display the configuration symbols Label Name Polarity Number Description of bits FRCERR positive Functional Redundancy Check Error signal HIT# positive Snoop Hit signal HITM# positive Snoop Hit Modified signal IERR# positive Internal Error signal IGNNE# positive Ignore Numeric Error signal INIT# positive Initialization signal...

  • Page 38: Table 4. Pentium Ii Processor Transaction Type Symbols

    Displaying Information To display the configuration symbols The following table lists the transaction type symbol encodings defined by the logic analyzer configuration software for the TranTy label. Table 4. Pentium II Processor Transaction Type Symbols Signal Symbol TranTy "Branch Trace" "Code Read "...

  • Page 39: To Display Captured State Information

    See Chapter 1 to review the hardware configuration, correct it if needed, and then run the trace again. Figure 12 shows the Listing display for the HP 16550A logic analyzer. Figure 12 Logic Analyzer Listing Display...

  • Page 40: To Display Captured Timing Data

    To display captured timing data To display captured timing data • Open the Waveform display for your logic analyzer. The following figure shows the Waveform display for the HP 16550A logic analyzer: Figure 13 Logic Analyzer Waveform Display Preprocessor Interface for the Pentium II Processor...

  • Page 41: Using The Transaction Tracker

    Using the Transaction Tracker This section discusses the general output format of the transaction tracker, and any processor-specific information you will need. The transaction tracker supports many filter options based on type of states (start of a transaction, part of some transaction), transaction types, and transaction-agent ownership.
  • Page 42 Using the Transaction Tracker Filter options Filterable State Options Show Transactions: Code Reads: Show/Suppress Memory Data Reads: Show/Suppress Mem Read & Invalidate: Show/Suppress Memory Writes: Show/Suppress Memory Writebacks: Show/Suppress I/O Reads: Show/Suppress I/O Writes: Show/Suppress Deferred Replies: Show/Suppress Interrupt Acknowledges: Show/Suppress Special Transactions: Show/Suppress Branch Trace Messages: Show/Suppress...

  • Page 43: Transaction Tracker Messages

    Included with each message is a brief explanation. Errors and warnings The HP E2466C software contains error messages and warnings for both the transaction tracker and the inverse assembler. For a list and description of the messages, refer to Appendix A.

  • Page 44: Protocol Violations

    Using the Transaction Tracker Transaction tracker messages Figure 15 Listing Menu Showing End of Boundary Protocol Violations The transaction tracker displays a bus protocol violation when the maximum allowable outstanding transactions have been exceeded. Protocol violations are followed with line: "*** protocol violation detected ***"...

  • Page 45: Using The Inverse Assembler

    Instruction disassembly supports Intel’s MMX technology. Disassembly requires the use of a separate run-control tool such as the HP E3493A to disable all CPU caches and enable Branch Trace Message transactions. Operating modes are determined by a combination of preprocessor interface hardware switch settings and options selected in the HP 16505A Listing window under the "Invasm - Filter..."...

  • Page 46: Pentium Ii Filter Dialog

    Request A Phase, which contains a summary of the entire transaction, or All Phases, which includes all captured states pertaining to each transaction. The figure below shows a sample Filter dialog. Figure 16 HP 16505A Pentium II Filter Dialog Preprocessor Interface for the Pentium II Processor 2-15...

  • Page 47: Pentium Ii Preferences Dialog

    Using the Inverse Assembler Pentium II preferences dialog Pentium II preferences dialog Preferences options are accessed from the Listing menu bar by clicking on Invasm and selecting Preferences. The Preferences dialog controls the level of detail for states shown. Figure 17 shows the Preferences dialog. Disassembly When "Display Disassembly"...
  • Page 48 Using the Inverse Assembler Pentium II preferences dialog Figure 17 HP 16505A Pentium II Preferences Dialog Preprocessor Interface for the Pentium II Processor 2-17...

  • Page 49: Analysis Techniques

    -- OFF Transaction Format -- SHORT Display Deferred Pairing -- ON Display Read ECC Errors -- OFF Display Write ECC Errors -- ON Figure 18 HP 16505A Listing window for Software Analysis 2-18 Preprocessor Interface for the Pentium II Processor...

  • Page 50: Disassembler Behavior

    Disassembler Behavior To display instruction disassembly, use a Pentium II processor run-control tool such as the HP E3493A to enable Branch Trace Messages and disable the processor instruction caches. Show "Branch Trace Messages" in the Filter dialog, and select "Display Disassembly" in the Preferences dialog.

  • Page 51: Reset Configuration Information

    Reset Configuration Information The following table describes the reset configuration information that is displayed at reset. Table 5. Reset Configuration Signal at Reset Configuration (asserted/deasserted) FLUSH# Output Tristate Enabled/Disabled INIT# Built-in Self Test Enabled/Disabled AERR# Observation Policy Enabled/Disabled BERR# Observation Policy Enabled/Disabled A10# BINIT# Observation Policy Enabled/Disabled In-order Queue depth = 1/8...

  • Page 52: Triggering Hints

    Triggering Hints Storage Qualification Any use of storage qualification in the trigger sequence will result in error messages in the inverse assembly column in the Listing. The preprocessor interface communicates its switch settings and dynamic AERR/BINIT observation policies to the logic analyzer via a repeating serial frame on a preprocessor-generated signal.
  • Page 53 2-22 Preprocessor Interface for the Pentium II Processor...
  • Page 54 Preprocessor Interface Hardware Reference...
  • Page 55 Preprocessor Interface Hardware Reference This chapter contains reference information on the HP E2466C hardware including the characteristics and signal mapping for the preprocessor interface. This chapter also includes a brief theory of operation, circuit board dimensions, and information on servicing the preprocessor interface.

  • Page 56: Preprocessor Interface Hardware Reference Operating Characteristics

    Preprocessor Interface Hardware Reference Operating Characteristics Operating Characteristics The following operating characteristics are not specifications, but are typical operating characteristics for the preprocessor interface. Table 6. Operating Characteristics Intel Pentium II microprocessor Microprocessor Compatibility S.E.C. Cartridge Microprocessor Package 66 MHz maximum for external BCLK Clock Frequency 800 mV p-p minimum for all GTL+ signals Target Signal...

  • Page 57: Table 7. Product Regulations

    Preprocessor Interface Hardware Reference Operating Characteristics Table 6. Operating Characteristics Operating 0 to 55 degrees C (+32 to +131 degrees F) Environmental Nonoperating -40 to +75 degrees C (-40 to +167 degrees F) Temperature Operating 4,600 m (15,000 ft) Altitude Nonoperating 15,300 m (50,000 ft) Up to 90% noncondensing.

  • Page 58: Signal Line Loading

    Preprocessor Interface Hardware Reference Signal line loading Signal line loading The figure below shows the equivalent loads placed on the microprocessor bus by the preprocessor interface. The loading is not affected by the preprocessor operating mode. The CMOS model applies to the following list of signals: Table 8.

  • Page 59: Modes Of Operation

    Preprocessor Interface Hardware Reference Modes of operation Modes of operation The preprocessor interface can operate in State mode or Timing mode. In State mode, the logic analyzer master clock is always qualified with the "cqual#" signal from the preprocessor. This clock qualifier is set to either Compacted or Expanded.

  • Page 60: Timing Mode Operation

    STPCLK# Timing Mode Operation The HP E2466C acts as a buffer in timing mode. The buffer in the preprocessor passes each Pentium II processor signal to the logic analyzer regardless of the state of BCLK. The slave latch within the logic analyzer is also bypassed and the PLD does not generate supplemental information.

  • Page 61: Hp E2466C Block Diagram

    Preprocessor Interface Hardware Reference HP E2466C Block Diagram HP E2466C Block Diagram Figure 21 HP E2466C Block Diagram Preprocessor Interface for the Pentium II Processor...

  • Page 62: Signal-To-Connector Mapping

    Signal-to-Connector Mapping The following table describes the electrical interconnections implemented with the HP E2466C Preprocessor Interface. Since the pods on the logic analyzers are numbered differently than the preprocessor connectors, refer to the tables in chapter 1 to correlate the pod numbers.

  • Page 63: Table 9. Pentium Ii Processor Signal List

    Preprocessor Interface Hardware Reference Signal-to-Connector Mapping Table 9. Pentium II Processor Signal List PREPROCESSOR CONNECTOR ANALYZER NAME SIGNAL LABEL CLK1 BCLK BCLK LINT0/INTR LINT0 FLUSH# FLUSH# INIT# INIT# * These signals are generated by the preprocessor interface. ** These signals are buffered (not latched) in State mode. 3-10 Preprocessor Interface for the Pentium II Processor...
  • Page 64 Preprocessor Interface Hardware Reference Signal-to-Connector Mapping Table 9. Pentium II Processor Signal List (Cont.) PREPROCESSOR CONNECTOR ANALYZER NAME SIGNAL LABEL CLK1 cqual# BR3# BR2# BR1# BR0# BPRI# BPRI# BNR# BNR# LOCK# LOCK# ADS# ADS# HIT# HIT# HITM# HITM# DEFER# DEFER# * These signals are generated by the preprocessor interface.
  • Page 65 Preprocessor Interface Hardware Reference Signal-to-Connector Mapping Table 9. Pentium II Processor Signal List (Cont.) PREPROCESSOR CONNECTOR ANALYZER NAME SIGNAL LABEL CLK1 IGNNE# IGNNE# D15# D31-00 D14# D31-00 D13# D31-00 D12# D31-00 D11# D31-00 D10# D31-00 D31-00 D31-00 D31-00 D31-00 D31-00 D31-00 D31-00 D31-00...
  • Page 66 Preprocessor Interface Hardware Reference Signal-to-Connector Mapping Table 9. Pentium II Processor Signal List (Cont.) PREPROCESSOR CONNECTOR ANALYZER NAME SIGNAL LABEL CLK1 FERR# FERR# D31# D31-00 D30# D31-00 D29# D31-00 D28# D31-00 D27# D31-00 D26# D31-00 D25# D31-00 D24# D31-00 D23# D31-00 D22# D31-00...
  • Page 67 Preprocessor Interface Hardware Reference Signal-to-Connector Mapping Table 9. Pentium II Processor Signal List (Cont.) PREPROCESSOR CONNECTOR ANALYZER NAME SIGNAL LABEL CLK1 FRCERR FRCERR D47# D63-32 D46# D63-32 D45# D63-32 D44# D63-32 D43# D63-32 D42# D63-32 D41# D63-32 D40# D63-32 D39# D63-32 D38# D63-32...
  • Page 68 Preprocessor Interface Hardware Reference Signal-to-Connector Mapping Table 9. Pentium II Processor Signal List (Cont.) PREPROCESSOR CONNECTOR ANALYZER NAME SIGNAL LABEL CLK1 IERR# IERR# D63# D63-32 D62# D63-32 D61# D63-32 D60# D63-32 D59# D63-32 D58# D63-32 D57# D63-32 D56# D63-32 D55# D63-32 D54# D63-32...
  • Page 69 Preprocessor Interface Hardware Reference Signal-to-Connector Mapping Table 9. Pentium II Processor Signal List (Cont.) PREPROCESSOR CONNECTOR ANALYZER NAME SIGNAL LABEL CLK1 STPCLK# STPCK# A15# A31-00 A14# A31-00 A13# A31-00 A12# A31-00 A11# A31-00 A10# A31-00 A09# A31-00 A08# A31-00 A07# A31-00 A06# A31-00...
  • Page 70 Preprocessor Interface Hardware Reference Signal-to-Connector Mapping Table 9. Pentium II Processor Signal List (Cont.) PREPROCESSOR CONNECTOR ANALYZER NAME SIGNAL LABEL CLK1 A20M# A20M# A31# A31-00 A30# A31-00 A29# A31-00 A28# A31-00 A27# A31-00 A26# A31-00 A25# A31-00 A24# A31-00 A23# A31-00 A22# A31-00...
  • Page 71 Preprocessor Interface Hardware Reference Signal-to-Connector Mapping Table 9. Pentium II Processor Signal List (Cont.) PREPROCESSOR CONNECTOR ANALYZER NAME SIGNAL LABEL CLK1 SMI# SMI# RSP# RSP# DEP7# DEP6# DEP5# DEP4# DEP3# DEP2# DEP1# DEP0# AP1# AP0# A35# A35-32 A34# A35-32 A33# A35-32 A32# A35-32...
  • Page 72 Preprocessor Interface Hardware Reference Signal-to-Connector Mapping Table 9. Pentium II Processor Signal List (Cont.) PREPROCESSOR CONNECTOR ANALYZER NAME SIGNAL LABEL CLK1 LINT1/NMI LINT1, NMI** RS2# RS1# RS0# TRDY# TRDY# DRDY# DRDY# DBSY# DBSY# AERR# AERR# BERR# BERR# BINIT# BINIT# RESET# RESET# PREQ# PREQ#...
  • Page 73 Preprocessor Interface Hardware Reference Signal-to-Connector Mapping Table 9. Pentium II Processor Signal List (Cont.) J2 (APIC) J3 (JTAG) Pin # Signal Signal Pin # Pin # Signal Signal Pin # TRST# PICD1# PICD0# PICCLK Refer to chapter 1 for additional information on connecting to these signals. The preprocessor interface captures but does not display the REQ[4:0]# bus signal group.

  • Page 74: Circuit Board Dimensions

    The figure below and on the next page give the dimensions for the preprocessor interface assembly. The dimensions are listed in inches and millimeters. Figure 22 HP E2466C Dimensions (part 1 of 2) Preprocessor Interface for the Pentium II Processor 3-21...
  • Page 75 Preprocessor Interface Hardware Reference Circuit Board Dimensions HP E2466C Dimensions (part 2 of 2) 3-22 Preprocessor Interface for the Pentium II Processor...

  • Page 76: Repair Strategy

    Assembly" program. This allows you to exchange a faulty assembly with one that has been repaired, calibrated, and performance verified by the factory. The cost is significantly less than that of a new assembly. Table 10. Replaceable Parts HP Part Number Description E2466-69509 Preprocessor Interface Circuit Board...
  • Page 77 3-24 Preprocessor Interface for the Pentium II Processor...

  • Page 78: A If You Have A Problem

    If You Have a Problem...
  • Page 79 If You Have a Problem Occasionally, a measurement may not give the expected results. If you encounter difficulties while making measurements, use this chapter to guide you through some possible solutions. Each heading lists a problem you may encounter, along with some possible solutions. If you still have difficulty using the analyzer after trying the suggestions in this chapter, please contact your local Hewlett-Packard service center.

  • Page 80: Analyzer Problems

    Analyzer Problems This section lists general problems that you might encounter while using the analyzer. Intermittent data errors This problem is usually caused by poor connections, incorrect signal levels, or marginal timing. Remove and reconnect all cables and probes, ensuring that there are no bent pins on the preprocessor interface or poor probe connections.

  • Page 81: No Activity On Activity Indicators

    If You Have a Problem No activity on activity indicators No activity on activity indicators Check for loose cables, board connections, and preprocessor interface connections. Check for bent or damaged pins on the preprocessor probe. No trace list display If there is no trace list display, it may be that your analysis specification is not correct for the data you want to capture, or that the trace memory is only partially filled.

  • Page 82: Preprocessor Problems

    Preprocessor Problems This section lists problems that you might encounter when using a preprocessor. If the solutions suggested here do not correct the problem, you may have a damaged preprocessor. Contact your local Hewlett-Packard Sales Office if you need further assistance. Target system will not boot up If the target system will not boot up after connecting the preprocessor interface, the microprocessor (if socketed) or the preprocessor interface may...

  • Page 83: Erratic Trace Measurements

    If You Have a Problem Erratic trace measurements Erratic trace measurements There are several general problems that can cause erratic variations in trace lists and transaction tracker failures. Ensure that the preprocessor operating mode switches are correctly set for the measurement you are trying to make. Do a full reset of the target system before beginning the measurement.

  • Page 84: Transaction Tracker/Inverse Assembler Problems

    Transaction Tracker/Inverse Assembler Problems This section lists problems that you might encounter while using the transaction tracker/inverse assembler. When you obtain incorrect inverse assembly results, it may be unclear whether the problem is in the preprocessor or in your target system. If you follow the suggestions in this section to ensure that you are using the preprocessor and transaction tracker/inverse assembler correctly, you can proceed with confidence in debugging your target system.

  • Page 85: Transaction Tracker/Inverse Assembler Will Not Load Or Run

    Ensure that the transaction tracker/inverse assembler is on the same disk as the configuration files you are loading and is in the same directory on the HP 16500B/C mainframe. For the HP 16505A Prototype Analyzer the transaction tracker must be in the /hp16505/ia directory.

  • Page 86: Ia Notice: Long Format Requires Intel Nda

    <ia notice: non-ReqA info requires Intel NDA> The features you have tried to access are only available in the restricted version of the HP E2466C. Contact your HP Sales Office for information on obtaining the appropriate Intel non-disclosure forms and software for accessing the restricted features.

  • Page 87: Ia Warning: Too Few States -- Modes Assumed

    -- E2466C probe end not clamped tightly to CPU daughter card. -- Logic analyzer pods for the D[63:00]# signals are swapped. -- Data bus ECC checking is not enabled on the target system.

  • Page 88: Intermodule Measurement Problems

    Intermodule Measurement Problems Some problems occur only when you are trying to make a measurement involving multiple modules. An event wasn’t captured by one of the modules If you are trying to capture an event that occurs very shortly after the event that arms another measurement module, it may be missed due to internal analyzer delays.

  • Page 89: Logic Analyzer Messages

    “Measurement Initialization Error” This error occurs when you have installed the cables incorrectly for the HP 16550B cards. Ensure that your cable connections match the silk screening on the card. Then, repeat the measurement. See Also The HP 16550B Logic Analyzer Service Guide.

  • Page 90: Selected File Is Incompatible

    “Slow or Missing Clock” This error message might occur if the logic analyzer cards are not firmly seated in the HP 16500B/C or HP 16501A frame. Ensure that the cards are firmly seated. This error might occur if the target system is not running properly.

  • Page 91: Time From Arm Greater Than 41.93 Ms

    If You Have a Problem “Time from Arm Greater Than 41.93 ms” “Time from Arm Greater Than 41.93 ms” The state/timing analyzers have a counter to keep track of the time from when an analyzer is armed to when it triggers. The width and clock rate of this counter allow it to count for up to 41.93 ms before it overflows.
  • Page 92 © Copyright Hewlett- For warranty service or Exclusive Remedies Safety Symbols repair, this product must be Packard Company 1997 The remedies provided W A R N I N G returned to a service facility herein are the buyer’s sole All Rights Reserved. The Warning symbol calls designated by and exclusive remedies.
  • Page 93 The following list of pages gives the date of the current This is the first edition of the edition and of any changed HP E2466C Preprocessor pages to that edition. Within Interface for the Pentium® the manual, any page II Processor User’s Guide.

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