HP E2450A Symbol Utility User's Guide
Contents
1. HP MRI IEEE 695 The OMF format produced by HP and MRI cross compilers and cross assem blers This format is fully supported by the Symbol Utility s IEEE 695 reader IEEE 695 A particular format for an OMF This format is usually pro duced by language tools for non Intel microprocessors Some language tools which claim to output this format may deviate from the IEEE 695 standard in ways which make the OMF file unreadable by the Symbol Utility s reader language tool chain A set of programs used to generate ex ecutable code For example a compiler assembler and linker loaded file A database file which has been loaded into the Symbol Utility measurement module Any of the cards that can be inserted into the slots in the HP 16500 mainframe such as an oscilloscope pattern gen erator or logic analyzer The HP E2450A Symbol Utility requires a logic analyzer measurement module Glossary 1 Glossary when run on an HP 16500 logic analysis system OMF A file which contains mixed object code and symbol information OMF stands for Object Module File The OMF is produced by the lan guage tool chain OMF286 A particular format for an OMF This format is usually pro duced by language tools for Intel 80x86 series and Pentium microproc essors running in real or protected mode OMF386 A particular format for an OMF This format is usually pro duced by language tools for Intel 80x86 series and Pentium mi2. Control User Symbol Table Store anyl ofr orfsat User Symbol Table IE OMF Symbol Table Trigger absolute N o o wo ie a a 2 5 N a la 3 absolute Co absolute Selecta trigger aneaTuts ebsolu K ab x term C i absolute XXXKXXXX XXXXXXXX absol X absolu X ab X 2 9 Using the Symbol Utility To Trigger on a Symbol 5 Use the knob to scroll through the list of symbols and pick the one that you want Select Done The trigger term is now defined as one of your OMF symbols d OMF Symbol Table Find Context A SYMLOP X Address Bc Align to 4 Bytes Offset by XXXXXXXX MORE __pkObjectEntry TryGetExtRet NsGetExtRef SymlopGetExtRef PkExtRef E TryExtRef G NsExtRef SymlopExtRet iC symlopSetSeparators symlopSymbolToAscii MORE l View Globals and Locals Highlight the symbol that you want to use l Done Select Done 6 Use the symbol term in the trigger specification to trigger the logic analyzer BE SIZE Label ADDR DATA CYCLE Terms Symbol Hex J Symbol Symbol Symbol DjexiNsGetExtRef XXXXXKXX OPCOD Symbol trigger term absolu X ab xX absolute XXXXXXXX XXXXXXKX absol X CD absolu X abX absolute
3. General Purpose ASCII format assembling 2 2 B base 2 7 to 2 8 browser menu 3 10 accessing 2 9 using 2 8 browsing the symbol database 3 12 See also searching the symbol database Cc comments in General Purpose ASCII format 3 27 compiling 2 2 Context display 3 17 example 3 17 creating an ASCII symbol file 3 20 creating OMF symbol files 2 2 Current Loaded Files field 3 7 Delete field 3 7 Delete option 2 12 using 2 11 View field 3 7 D data listing symbols in 2 6 database See symbol database Delete field 3 7 using 2 12 deleting symbol files 2 12 displaying OMF symbols 2 6 Drive field 3 4 dynamically loaded code 3 8 F file names and line numbers 3 10 file versions 3 6 files and line numbers 3 18 line number field 3 18 valid line numbers 3 18 Find field 3 12 functions in General Purpose ASCII format 3 24 G General Purpose ASCII format 3 2 3 19 address format 3 20 comments 3 27 creating a file 3 20 example 3 22 functions 3 24 record headers 3 21 sections 3 23 simple example 3 20 simple form 3 20 source line numbers 3 26 start address 3 26 variables 3 25 generating OMF symbol files 2 2 globals and locals 3 10 3 18 GPA See General Purpose ASCII format I installing software for logic analyzer 1 3 L label 3 5 setting base 2 7 Label field 3 5 Line Number field 3 18 line numbers GPA file 3 26 linking 2 2 Load field 3 6 load menu 3 3 access
4. One ns database file will be created for each symbol file that you load If the OMF symbol file is loaded from the hard disk drive the ns database file will be created on the same subdirectory that the OMF file is in If the OMF file is loaded from the flexible disk drive the directory path from the flexible disk drive will be duplicated on the hard disk drive The ns database file will be created on the hard disk drive in the same subdirectory that the OMF file was in on the flexible disk drive Once the ns file is created the Symbol Utility will use this file as its working symbol database The next time you need to load the symbols into the system you can load the ns file explicitly by placing the ns file name in the OMF file field You can purge the OMF file from the disk once the ns file is created OMF file versions If you load an OMF file that has been loaded previously the system will compare the time stamps on the ns file and the OMF file If the OMF file is newer than the existing ns file a new ns file will be created and the old one will be overwritten If the OMF file being loaded has not been updated since it was last loaded the existing ns file will be used Multiple files You can load the same symbol file into several modules and you can load multiple symbol files into one analyzer Symbols from each of the files that you load will appear in the OMF Symbol Browser menu and can be used to create trigger
5. all sections in the selected OMF file The values entered will be added to all relocatable sections in your program You will typically use this option if you have PC relative code and data A section that contains symbols for hardware addresses will usually be indicated as nonrelocatable in the OMF file The symbols for these sections will not be relocated 3 9 The OMF Symbol Browser Menu The OMF Symbol Browser menu allows you to browse through the symbols that have been loaded into a measurement module You can use the symbols as trigger terms in the Trigger menu Search features and wildcard characters are available to help you find the symbols that you want Symbol Format The OMF symbols can be viewed in one of two formats as global and local variables or e as source file names with line numbers Select the large field at the bottom of the menu to toggle between the two modes Symbols will appear in trace listings in the format selected here OMF Symbol Table Find E Context Address Align to 1 Byte Offset by XXXXXXX X Cancel view Globals and Locals Done OMF Symbol Browser Menu Features and Functions Symbol Type Selection Field User vs OM F Symbol Type Selection Field User vs OMF This field allows you to choose between the two types of symbols available in the logic analyzer The choices are e User Symbols correspondi
6. and choose OMF Symbol Table from the pop up menu 1o0 s00nHz LA c Trigger 1 Run State Sequence Levels Timar Arming Control tian While storing 4 O TRIGGER on a Store and or 2 pieset User Symbol Table OMF Symbol Table Control Select this field and choose OMF Symbol Table absolute Label gt C C Cc CEED absolute absolute absolute XXXXXXXX XXXXXXXX 1 10 Getting Started To Access the Symbol Brow ser The OMF Symbol Browser menu appears Use this menu to select an OMF symbol as a trigger term l OMF Symbol Table Find Context Address Align to 1 Byte Offset by XXXXXXXX See Also Chapter 2 Using the Symbol Utility for information on how to use the symbol browser to set up trigger conditions Using the Symbol Utility See also Using the Symbol Utility To Generate a Symbol File To Generate a Symbol File In order to view symbols from your software in the Listing or Waveform menus of the logic analyzer you need to create a symbol file in one of the formats that are supported by the HP E2450A Symbol Utility If your language tools cannot generate an OMF symbol file which is compatible with the Symbol utility you may create a symbol file in the General Purpose ASCII GPA file format Compile assemble and l
7. at the bottom of the display to toggle between the two modes Symbols appear in the trace listing in the format that is selected here When the View Globals and Locals mode is selected the browse results are displayed as symbolic names When the View Files and Line Numbers mode is selected the browse results display lists source file names from the OMF file In the View Files and Line Numbers mode two additional fields appear in the OMF Symbol Browser menu The Scroll Files Field Select this field to assign the knob to scroll the Browse Results listing Line Number Field The Line Number field is used to select a line number of a source file as a trigger term Select the field once and it can be used to scroll through the line numbers of valid existing lines of code Select the field a second time and a keypad pop up allows you to specify a particular line number Not all lines in a source file have code associated with them When you type in a line number that contains no code the field defaults to the next highest line number that does contain code If you select a line number higher than any line number in the file the field defaults to the highest line number in the file The General Purpose ASCII File Format The Symbol Utility supports a General Purpose ASCII GPA file format If a your language tool chain does not produce one of the supported file types you can create a GPA file to define symbols for the Sy
8. be added to a search word to find all symbols that begin or end with the same letters To find all of the symbols that begin with the letters st select the Find field and type st Select Done and the browse results look like this OMF Symbol Table l Scroll Files Find ST Line Number Context A SYMLOP dsk2213 1 hp objects symlop Address 196 Align to 1 Byte Offset by XXXXxXxX stoa__sl c stos__sl c stubbba c strien c strncpy c strrehr c Cancel l view Files and Line Numbers Done Highlight the symbol that you want and select Done to use the symbol as a trigger term Features and Functions Find Field Question mark wildcard If you are using a keyboard to control your logic analyzer you can use the question mark wildcard character A question mark represents any single character You can use more than one question mark in a symbol database search for example ector num is a valid search string Example Your symbol database contains many symbols that have names such as sym1 sym17 and sym20 To find all of the symbols that end in 5 select the Find field and type sym 5 Select Done and the browse results look like this OMF Symbol Table Find tie Context A S1000 GPA Address 17543 Align to 1 Byte Offset by XXXXXXXX Symi5 Sym25 Sym35 Sym45 Sym55 Sym65 Sym75 Sym s Sym95 Notice that sym5 was not
9. terms for the logic analyzer 3 6 Features and Functions Current Loaded Files Field Current Loaded Files Field Select this field to view a list of the symbol files that are currently loaded The Loaded Database Files pop up menu provides a Delete field that you can use to remove a symbol database from a measurement module Use the knob to highlight the module and symbol file that you want to remove Select the Delete field to remove the file Loaded Database Files Analyzer Machine Label File Type 2M5 Data Acq E Labi General Purpose Ascii A 51000 GPA C 451000 NS 1007500MHz LA C ADDR ONF366 C RAY BND 386 C RAY_BND NS 100 500MHz LA C ADDR IEEE 695 A ASYMLOP C ASYMLOP NS Current Loaded Files Display View Field The View field is used to select the database that you want to be work with in the OMF Symbol Table load menu If more than one database has been loaded you can choose the database that you want to work with by highlighting the analyzer and file name and selecting the View field The file name that you select will appear in the OMF File field in the main OMF Symbol Table load menu You can now change the file characteristics such as the Section Relocation options 3 7 Features and Functions Section Relocation Option Section Relocation Option The Section Relocation option allows you to add offset values to the symbols in a
10. to create trigger conditions for your logic analyzer The Logic Analyzer Training Kit for information on how to use the logic analyzer interface The logic analyzer s User s Guide for information on the features and functions of the logic analyzer you are using Table 1 Installing the HP Logic Analyzer Software The HP E2450A Symbol Utility software the HP Logic Analyzer System software and the HP State Analyzer module HP 16500B only software major version numbers must match You can find the operating system version number under System Test See the software version number example in table 1 Example of Acceptable Software Version Numbers Product Software Version HP 16500B System Software SYSTEM 3 06 HP 16555A M odule Software SYS_ 034 3 10 Symbol Utility Software for HP 16500B OPT_032 3 04 HP 16500C System Software SYSTEM 1 00 HP 16550A M odule Software SYS_ 032 1 00 Symbol Utility Software for HP 16500C OPT5 032 1 00 HP 1671D System Software 1 00 Symbol Utility Software for HP 1670 1 01 The HP E2450A Symbol Utility ships with the benchtop analyzers If you need to update the HP 16500 system and module software copy the files from the flexible disks to the SYSTEM subdirectory on the logic analyzer s hard disk Then reboot the HP 16500 If you are updating the HP 1660C CS series or HP 1670A D series operating system copy the update from the flexible disks to the flash ROMs Updates ca
11. 00F00F2 PAG 30 OOOFOOFO 2 JMP RAY_BN D 000F01D2 PAG 34 OOOFOIDO 2 MOV AX CS PAG 35 OOOFOID4 4 MOV SS Ax PAG 2 6 Using the Symbol Utility To Display Symbols in the Trace List 3 Select the base of the ADDR label a If you have loaded the OMF symbols into a label other than ADDR select the base for that label 4 Choose Symbol from the base pop up field 100 500MHz LA C Listing 1 invasm Options Print off Leber ADDR 80486 Inverse Assembly Symbol Mnemonics Hex Set the base of the ADDR label to o RAY DATA FFFFFFFO 0 JMP F000 E055 4 RAY_BN DATA FE058 B JMP RAY_BN D 000F00BA Symbol 8 RAY BN DATA F00B6 A CLI B CLD 9 RAY_BN DATA FOOBC C IN AL 64 E TEST AL 04 16 TryGetExtRef 0032 4 xxxxxx00 i o read 21 SYMLOP prog 0001 1 xxxx00xx flush 22 RAY_BN DATA FOODO O MOV EAX CRO 23 RAY_BN DATA FOOD4 4 AND EAX 60000000 24 RAY_BN DATA FOOD8 A CMP EAX 60000000 26 RAY_BN DATA FOOEO O JZ RAY_BN D 000F00F2 30 RAY_BN DATA FOOFO 2 JMP RAY_BN D 000FO1D2 34 RAY_BN DATA FOIDO 2 MOV AX CS 35 RAY_BN DATAFOID4 4 MOV 55 AX If you have created User Symbols that overlap with the OM F symbols the User Symbols take precedence and will be displayed in the listing instead of the OM F symbols See Also To Load a Symbol File on page 2 3 2 7 Using the Symbol Utility To Trigger on a Symbol To Trigger on a Symbol You must load a symbol file into
12. 3 1995 1996 All Rights Reserved Reproduction adaptation or translation without prior written permission is prohibited except as allowed under the copyright laws Document Warranty The information contained in this document is subject to change without notice Hewlett Packard makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability or fitness for a particular purpose Hewlett Packard shall not be liable for errors contained herein or for damages in connection with the furnishing performance or use of this material Safety This apparatus has been designed and tested in accordance with IEC Publication 348 Safety Requirements for Measuring Apparatus and has been supplied in a safe condition This is a Safety Class I instrument provided with terminal for protective earthing Before applying power verify that the correct safety precautions are taken see the following warnings In addition note the external markings on the instrument that are described under Safety Symbols Warning e Before turning on the instrument you must connect the protective earth terminal of the instrument to the protective conductor of the mains power cord The mains plug shall only be inserted in a socket outlet provided with a protective earth contact You must not negate the protective action by using an extension cord power cable wit
13. About this Manual We ve added this manual to the Agilent website in an effort to help you support your product This manual is the best copy we could find it may be incomplete or contain dated information If we find a more recent copy in the future we will add it to the Agilent website Support for Your Product Agilent no longer sells or supports this product Our service centers may be able to perform calibration if no repair parts are needed but no other support from Agilent is available You will find any other available product information on the Agilent Test amp 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 In other documentation to reduce potential confusion the only change to product numbers and names has been in the company name prefix where a product number name was HP XXXX the current name number is now Agilent XXXX For example model number HP8648A is now model number Agilent 8648A User s Guide Publication number E2450 97002 Fourth Edition August 1996 For Safety information Warranties and Regulatory information see the pages behind the Index Copyright Hewlett Packard Company 1993 1995 1996 All Rights Reserved HP
14. Also Specify Database The Symbol Load menu appears Use this menu to load an Object Module Format OMF file into the HP 16500 system OMF Symbol Table OMF File Drive l Hard Disk Label ADDR l Section Relocation Hodute 100 500NHz LA C Current Loaded Files Load Done Chapter 2 Using the Symbol Utility for information on how to load a symbol file 1 7 Getting Sta rted To Access the Symbol File Load M enu Method 2 Using the Symbol Field in the Format Menu 1 Goto the Analyzer Format menu If you are using an HP 16500 choose the analyzer module that you want to use with the Symbol Utility 2 Inthe Format menu select the Symbols field Access the Format menu 100 500MHz LA C Format 1 State Acq Full Channel Pods gt Labels ADDR uisition Mode Master Clock 4K Memory 100MHz Kt Nt Symbols Clock Inputs Pod C6 TH Pod CS TTL Master Clock PNMLKJ 15_ 87 9 DATA hae STAT ls crete reo_ak Boack R H r SIZ r tt tk tea ae Select the Symbols field 3 Inthe Symbols pop up select the large field at the top of the display Choose OMF Symbol Table from the pop up Select this field and choose OMF Symbol Table i U
15. E2450A Symbol Utility Introduction The HP E2450A Symbol Utility provides you with a new way to view your logic analysis data The Symbol Utility maps trace data onto meaningful symbolic names The symbols can include variable names procedure or function names and source file names and line numbers The linkage between the symbol names and the trace data values comes from one of two sources e Object Module Format OMF files generated by your compiler and linker or e ASCII files that you create with a text editor Using the symbol utility you have two new capabilities e you can view symbols from OMF files in a logic analyzer state listing e you can use the OMF symbols as trigger terms in a logic analyzer trigger specification E We assume that you are familiar with the operation of your logic analyzer If not refer to the Logic Analyzer Training Kitfor information on how to use the logic analyzer interface or the appropriate User s Guide for details on the system menus and functions Refer to your software tool documentation for information about how to generate OMF files during compilation and linking Equipment Required one HP E2450A Symbol Utility disk either an HP 1660 series logic analyzer an HP 1670 series logic analyzer or an HP 16500B or 16500C logic analysis mainframe and one logic analyzer meaurement module such as an HP 16550A timing analyzer Introduction 1 Supporte
16. Many product updates 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
17. XXXXXXXX XXXXXXKX absol X CED absolu X abx absolute XXXXXXXX XXXXXXXX absol x Cos absolu X abx 2 10 Using the Symbol Utility To View a List of Symbol Files Currently Loaded into the System To View a List of Symbol Files Currently Loaded into the System 1 Access the OMF Symbol Load menu There are two methods available to access this menu See To Access the Symbol File Load Menu in Chapter 1 for more information 2 Select the Current Loaded Files field in the bottom left corner of the display Loaded Database Files Analyzer Machine Label File Type 2MB Data Acq E Labi General Purpose Ascii A 4 S1000 GPA C S1000 NS 1007 500MHz LA C ADDR ONF366 C RAY_BND 386 C RAY_BND NS 100 500MHz LA C ADDR TEEE 695 A SYMLOP X C SYMLOP NS A list of the symbol files that are currently loaded is displayed 3 Select Done to return to the OMF Symbol Table menu See Also To Access the Symbol File Load Menu in Chapter 1 3 4 5 Using the Symbol Utility To Remove a Symbol File From the System To Remove a Symbol File From the System Access the OMF Symbol Load menu There are two methods available to access this menu See To Access the Symbol File Load Menu in Chapter 1 for more information Select the Current Loaded Files field in the bottom left corner of the display A list of the symbol file
18. ased on contract ort or any other legal theory Assistance Product maintenance agreements and other customer assistance agreements are available for Hewlett Packard products For any assistance contact your nearest Hewlett Packard Sales Office Certification Hewlett Packard Company certifies that this product met its published specifications at he time of shipment from the factory Hewlett Packard further certifies that its calibration measurements are raceable to the United States ational Institute of Standards and Technology to he extent allowed by the nstitute s calibration facility and to the calibration facilities of other nternational Standards Organization members About this edition This is the HP E2450A Symbol Utility User s Guide Printed in U S A Edition dates are as follows E2450 90901 First edition July 1993 E2450 97000 Second edition March 1995 2450 97001 Third edition ovember 1995 E2450 97002 Fourth edition August 1996 ew editions are complete revisions of the manual Update packages which may be issued between editions contain additional and replacement pages to be merged into the manual by you The dates on the title page change only when a new edition is published A software or firmware code may be printed before the date This code indicates the version level of the software or firmware of this product at the time the manual or update was issued
19. croproc essors running in real or protected mode OMF86 A particular format for an OMF This format is usually pro duced by language tools for Intel 80x86 series and Pentium microproc essors running in real mode only OMF96 A particular format for an OMF This format is usually pro duced by language tools for the Intel 80196 family of processors point symbol A symbol that refers to a single address procedure This term is used in the Symbol Utility to refer to proce dures functions subroutines or their equivalents range symbol A symbol that re fers to a range of addresses such as a module or procedure reader A program that generates a database file from a symbol file symbol file A file which contains symbol information This file is pro duced by the language tool chain TI COFF A particular format for an OMF This format is usually pro duced by language tools for Texas Instruments microprocessors user symbol table A table con taining the symbols that are created by the user using the Symbols op tion in the Format menu This is the standard symbol capability of the HP logic analyzer Glossary 2 Index character 3 12 character 3 13 ns files 2 4 3 6 loading 3 6 A accessing symbol utility menus browser menu 1 10 load menu 1 6 1 8 ADDR label 2 3 2 7 3 5 Address display 3 17 Intel 80x86 addresses 3 17 Align to Byte option 3 15 example 3 15 ASCII format See
20. d Symbol File Formats Supported Symbol File Formats The HP E2450A will support OMF files in the following formats ELF DWARF This OMF is a portable format consisting of ELF Executable and Linkable Format and DWARF Debugging Information Format for various processors including Intel 80960 PowerPC and MIPS GPA The General Purpose ASCII file format which can be used to provide symbols for an Object Module Format which is not explicitly supported See the General Purpose ASCII Symbol File Format section in the Features and Functions chapter for more details HP MRI IEEE 695 The OMF produced by HP and MRI cross compilers and cross assemblers This format is fully supported by the Symbol Utility s IEEE 695 reader IEEE 695 This OMF is usually produced by language tools for non Intel microprocessors Some language tools which claim to output this format may deviate from the IEEE 695 standard in ways which make the OMF file unreadable by the Symbol Utility s reader OMF286 This OMF is produced by language tools for Intel 80x86 series and Pentium microprocessors running in real and or protected mode The supported OMF 286 file types are Single task Loadable and Bootloadable OMFS386 This OMF is produced by language tools for Intel 80x86 series and Pentium microprocessors running in real and or protected mode The supported OMF386 file types are Loadable and Bootloadable OMF86 This OMF is produced by language tools for Inte
21. e done only by qualified maintenance personnel Safety Symbols A Instruction manual symbol the product is marked with this symbol when it is necessary for you to refer to the instruction manual in order to protect against damage to the product Hazardous voltage symbol Earth terminal symbol Used to indicate a circuit common connected to grounded chassis WARNING The Warning sign denotes a hazard It calls attention toa procedure practice or the like which if not correctly performed or adhered to could result in personal injury Do not proceed beyond a Warning sign until the indicated conditions are fully understood and met CAUTION The Caution sign denotes a hazard It calls attention to an operating procedure practice or the like which if not correctly performed or adhered to could result in damage to or destruction of part or all of the product Do not proceed beyond a Caution symbol until the indicated conditions are fully understood or met Hewlett Packard P O Box 2197 1900 Garden of the Gods Road Colorado Springs CO 80901 Product Warranty This Hewlett Packard product has a warranty against defects in material and workmanship for a period of one year from date of shipment During the warranty period Hewlett Packard Company will at its option either repair or replace products hat prove to be defective For warranty service or repair this product must be retu
22. e for the symbol that is currently highlighted in the Browse Results display A indicates the flexible disk drive C indicates the hard disk drive Some OMF formats such as IEEE 695 provide information about the path name of the original source files If you are using one of these OMF formats you will see path information for the individual files in the browse results display The source file path name is separated from the OMF path by a colon Example An OMF file called symlop x has been loaded from the hard disk drive of the HP 16500B One of the source files for the OMF was called main c When you browse symbols from the symbol database the context display might look like this Context C symlop x users fred project src main c C symlop x is the path for the OMF file on the HP 16500B hard disk users fred is the path for the file main c in the original environment where it was compiled Address Display The Address display indicates the address corresponding to the symbol that is currently highlighted in the Browse Results display The addresses are displayed as physical values Intel 80x86 segment offset values are converted to physical address values before they are displayed Features and Functions Symbol M ode Field Symbol Mode Field The OMF symbols can be viewed in one of two formats e as global and local symbols or as source file names with line numbers Select the large field
23. ecify Database button 5 Select Install to copy the files onto the hard disk drive or select Cancel to cancel the operation CAUTION Do not proceed until the light on the front of the flexible disk drive stops blinking If you do proceed the installation will be incomplete and you will need to start over at step1 See Also Installation requires about 5 minutes to complete Once the installation is complete you can remove the Symbol Utility disk from the flexible disk drive and store it as a backup The Symbol Utility will load whenever you turn on the logic analyzer If the installation does not complete and the error messages do not indicate a disk error the logic analyzer may not have enough memory to load the Symbol Utility software To install the software successfully increase your logic analyzer s available memory either by uninstalling other options or by purchasing additional memory Chapter 2 Using the Symbol Utility for how to information Chapter 3 Features and Functions for detailed descriptions of the menus and fields that are associated with the Symbol Utility 1 5 Getting Started To Access the Symbol File Load M enu To Access the Symbol File Load Menu To begin working with symbols in the logic analyzer you need to load symbol files into the system The OMF Symbol Load menu is used to do this There are two ways to access this menu Method 1 Using the Module Field 1 S
24. elect the Module field in the top left corner of the display If you are working with system level menus this field will say System 2 Choose Symbol Utility from the pop up Select this field and choose Symbol Utility System Options SYMBOL UTILITY Master Symbol utility Intermodule 100 500MHz LA C Ethernet HPIB RS 232C 2MB Data Acq E 100 MHz 500 MHz TIMING 2MB Data Acq MASTER This picture shows an HP 16500B On the benchtop logic analyzers Symbol Utility appears as Symbols 1 6 Getting Started To Access the Symbol File Load Menu 3 Select the Specify Database field in the Symbol Utility menu Symbol Utility How to use the OMF Symbol Utility 1 Select the Specify Database field below and load an OMF symbol file into an analyzer module label ADDR for example 2 Access the analyzer module into which the OMF symbol file was loaded To view OMF symbols in the Trigger Trace or Listing menu Set the label base to Symbol To use OMF symbols in a trigger term Select the term s assign ment field to raise the User Symbol Table pop up Switch to OMF Symbol Table by selecting the User Symbol Table field at the top of the pop up and choosing OMF Symbol Table See Chapter 2 of the HP E2450A Users Guide for more information Select this field See
25. everal modules and you can load several symbol files into one module or analyzer When you load a symbol file a database file is created by the logic analyzer Database files have an extension ns If your OMF file was loaded from the hard disk drive the database file will appear in the same subdirectory as your OMF file If your OMF file was loaded from the flexible disk drive the database file will appear on the hard disk drive in the same directory it was in on the flexible disk The logic analyzer creates any necessary subdirectories on the hard disk To Access the Symbol File Load Menu in Chapter 1 2 5 Using the Symbol Utility To Display Symbols in the Trace List To Display Symbols in the Trace List 1 Load the appropriate symbol file 2 Display the trace listing in the Listing menu of the logic analyzer module that you are working with Access the Listing menu 100 500mHz LA c Listing 1 invasm options Print Markers ort Label gt ADDR 80486 Inverse Assembly PCD Base gt Hex Mnemonics Hex Sym 0 FFFFFFFO O JMP FOOO E05B PAG 4 OOOFEOSS B JMP RAY_BN D 000FOOBA PAG 8 OOOFOOBG A CLI PAG B CLD 9 OOOFOOBC C IN AL 64 PAG E TEST AL 04 16 00000064 4 xxxxxx00 i o read PAG 21 00000001 1 xxxx00xx flush PAG 22 OOOFOODO O MOV EAX CRO PAG 23 OOOFOOD4 4 AND EAX 60000000 PAG 24 OOOFOODS A CMP EAX 60000000 PAG 26 OOOFOOEO O JZ RAY_BN D 0
26. hing the symbol database 3 12 example 3 12 to 3 13 results 3 14 Section Relocation Option 3 8 Offset All Sections option 3 9 Offset This Section option 3 9 Set Absolute Section Location option 3 9 sections in General Purpose ASCII format 3 23 Set Absolute Section Location option 3 9 software installing for logic analyzer 1 3 software requirements for logic analyzer 1 3 source line numbers in General Purpose ASCII format 3 26 start address in General Purpose ASCII format 3 26 symbol base 2 7 symbol browser menu accessing 1 10 using 2 8 symbol database ns files 2 4 creating 3 6 symbol file load menu 3 3 accessing 1 6 using 2 3 symbol format 3 10 choosing 3 18 symbol mode choosing 3 18 globals and locals vs files and line numbers 3 18 symbol type 3 11 precedence 2 7 Symbol Utility software installing 1 3 to 1 5 symbols browsing 3 12 T trace listing symbols in 2 6 trigger term 2 9 3 10 triggering on a symbol 2 8 browser menu 3 10 finding the symbol you want 3 12 odd numbered addresses 3 15 U User Symbols 2 7 3 11 Vv variables in General Purpose ASCII format 3 25 versions of symbol files 3 6 View field 3 7 View Files and Line Numbers 3 18 valid line numbers 3 18 View Globals and Locals 3 18 viewing OMF symbols 2 6 Ww wildcard characters character 3 12 character 3 13 Index 2 Copyright Hewlett Packard Company 1987 1990 199
27. hout a protective conductor grounding Grounding one conductor of a two conductor outlet is not sufficient protection e Only fuses with the required rated current voltage and specified type normal blow time delay etc should be used Do not use repaired fuses or short circuited fuseholders To do so could cause a shock of fire hazard e Service instructions are for trained service personnel To avoid dangerous electric shock do not perform any service unless qualified to do so Do not attempt internal service or adjustment unless another person capable of rendering first aid and resuscitation is present e If you energize this instrument by an auto transformer for voltage reduction make sure the common terminal is connected to the earth terminal of the power source e Whenever it is likely that the ground protection is impaired you must make the instrument inoperative and secure it against any unintended operation e Do not operate the instrument in the presence of flammable gasses or fumes Operation of any electrical instrument in such an environment constitutes a definite safety hazard e Do not install substitute parts or perform any unauthorized modification to the instrument e Capacitors inside the instrument may retain a charge even if the instrument is disconnected from its source of supply e Use caution when exposing or handling the CRT Handling or replacing the CRT shall b
28. ing 1 6 1 8 using 2 3 Loaded Database Files pop up 3 7 loading a symbol file choosing a disk drive 3 4 choosing a file 3 4 choosing a label 3 5 choosing a measurement module 3 5 Load field 3 6 loading OMF symbol files 2 3 M masking off addresses 3 15 measurement modules 2 3 3 5 choosing 3 5 Module field 3 5 multiple OMF files 3 6 loading 2 4 multiple symbol files 3 6 o odd numbered addresses 3 15 Offest option of browser menu 3 16 example 3 16 offset adding to address values 3 8 all sections 3 9 code section 3 9 trigger term 3 16 Offset All Sections option 3 9 Offset This Section option 3 9 OMF File field 3 4 Refresh field 3 4 using 2 4 OMF Load field using 2 4 OMF symbol files creating 2 2 currently loaded 2 11 deleting 2 12 transferring to the HP 16500B system 2 2 versions 3 6 OMF Symbol Table browser menu 3 10 browser menu accessing 1 10 2 9 browser menu using 2 8 load menu accessing 1 6 load menu using 2 3 Index 1 Index OMF Symbol Table menus 3 2 OMF symbols browsing 1 10 3 12 loading into logic analyzer 1 6 2 3 symbol type 3 11 P path name of OMF file 3 17 of source files 3 17 PC relative code 3 9 prefetch 3 15 offsetting trigger term 3 16 R record headers 3 21 Refresh field 3 4 relocation of code 3 8 removing symbol files 2 12 S Scroll Files field 3 14 3 18 searc
29. ing record headers The different records allow you to specify different kinds of symbols with differing characteristics A GPA file can contain any of the following kinds of records e Sections e Functions e Variables e Source line numbers e Start address The different kinds of symbols available are explained in the following sections Each kind of symbol must be separated from the next by a key word called a record header The record headers must be enclosed in square brackets like this HEADER If no record header is specified the lines are assumed to be symbol definitions in one of the following VARIABLES formats variable address variable start end variable start address size 3 21 Example Features and Functions GPA File Format Here is a GPA file that contains several different kinds of records SECTIONS prog 00001000 0000101F data 40002000 40009FFF common FFFFOO00 FFFF1000 FUNCTIONS main 00001000 00001009 test 00001010 0000101F VARIABLES total 40002000 4 value 40008000 4 SOURCE LINES File main c 10 00001000 11 00001002 14 00001004A 22 0000101E File test c 5 00001010 7 00001012 11 00001014A 3 22 Format section_name start end attribute Example Features and Functions Sections Sections SECTIONS section_name start end attribute Use SECTIONS to define symbols for reg
30. ink your program using the generate symbol file option of your language tools Transfer the DOS formatted symbol file to the logic analyzer You can put the file on a flexible disk or use a LAN interface to transfer the file directly to the hard disk If you need help creating OMF files refer to your software tool documentation for information about how to generate OM F files during compilation and linking The General Purpose ASCII File Format in Chapter 3 for a complete description of the ASCII symbol file format Supported File Formats in the Introduction for a list of the symbol file formats that are supported by the HP E2450A utility 2 2 Using the Symbol Utility To Load a Symbol File To Load a Symbol File Access the OMF Symbol Load menu There are two methods available to access this menu See To Access the Symbol File Load Menu in Chapter 1 for more information Select the disk drive that contains the symbol file Select the measurement module that you want to load the symbol file into For the benchtop logic analyzers the choice will always be Analyzer Select the Label field and choose the label that you want to map the OMF symbols to Typically you will use the ADDR label for your system address bus Access the OMF Symbol load menu OMF Symbol Table OMF File MeT Drive Hard Disk Label ADDR Choose the disk drive tha
31. ions of memory such as sections segments or classes A symbol representing the name of the section The first address of the section in hexadecimal The last address of the section in hexadecimal optional Attribute may be one of the following NORMAL default The section is a normal relocatable section such as code or data NONRELOC The section contains variables or code that cannot be relocated In other words this is an absolute segment To enable section relocation section definitions must appear before any other definitions in the file SECTIONS prog 00001000 00001FFF data 00002000 00003FFF display_io 00008000 0000801F NONRELOC If you use section definitions in a GPA symbol file any subsequent function or variable definitions must fall within the address ranges of one of the defined sections Those functions and variables that do not will be ignored by the Symbol Utility 3 23 Format func_name start end Example Features and Functions Functions Functions FUNCTIONS func_name start end Use FUNCTIONS to define symbols for program functions procedures or subroutines A symbol representing the function name The first address of the function in hexadecimal The last address of the function in hexadecimal FUNCTIONS main 00001000 00001009 test 00001010 0000101F Format var_name start end size Examp
32. l 80x86 series and Pentium microprocessors running in real mode only OMF96 This OMF is producted by language tools for the Intel 80196 family of processors TI COFF This OMF is produced by language tools for Texas Instruments microprocessors Introduction 2 In This Book This book provides a detailed description of the features of the HP E2450A Symbol Utility The book is divided into the following chapters Chapter 1 describes how to install the software on your HP 16500B C logic analysis system or HP 1660C CS series or HP 1670A D series logic analyzer Chapter 1 also describes how to locate the menus associated with the Symbol Utility Chapter 2 describes how to use the HP E2450A to perform common tasks like triggering on an OMF symbol Chapter 3 describes the features and functions of the HP E2450A Symbol Utility It also provides a detailed description of the General Purpose ASCII file format 3 ea Getting Started Using the Symbol Utility Features and Functions Glossary Index Introduction 3 Introduction 4 Contents Equipment Required 1 1 Supported Symbol File Formats 1 2 1 Getting Started Installing the HP Logic Analyzer Software 1 3 To Install the Symbol Utility Software 1 4 To Access the Symbol File Load Menu 1 6 To Access the Symbol Browser 1 10 2 Using the Symbol Utility To Generate a Symbol File 2 2 To Load aSymbol File 2 3 To Display Symb
33. le Features and Functions Variables Variables VARIABLES var_name var_name start start size end You can specify symbols for variables using the address of the variable the address and the size of the variable or a range of addresses occupied by the variable If you give only the address of a variable the size is assumed to be 1 byte A symbol representing the variable name The first address of the variable in hexadecimal The last address of the variable in hexadecimal optional The size of the variable in bytes in decimal VARIABLES subtotal total data_array status_char 40002000 40002004 40003000 40002345 4 4 4000302F 3 25 Features and Functions Source Line Numbers Source Line Numbers Format SOURCE LINES File file name line address Use SOURCE LINES to associate addresses with lines in your source files file _name The name ofa file lin The number of a line in the file in decimal address The address of the source line in hexadecimal Example SOURCE LINES File main c 10 00001000 11 00001002 14 0000100A 22 0000101E Features and Functions Start Address Start Address Format START ADDRESS address address The address of the program entry point in hexadecimal Example START ADDRESS 00001000 Comments Format comment
34. matched Highlight the symbol that you want and select Done to use the symbol as a trigger term Features and Functions Browse Results Display Browse Results Display This area of the display shows you a list of the symbols that satisfy the search criteria that you have specified Depending on the mode selected in the large field at the bottom of the display the browse results display will show file names and line numbers or the symbol names The field can be scrolled to view additional symbols that are offscreen Scroll Files field This field appears if the symbol mode field at the bottom of the screen is set to View Files and Line Numbers Select this field to scroll the listing of the browse results If this field is not selected then the Line Number field can be scrolled Example Features and Functions Align to xx Byte Option Align to xx Byte Option Most processors do not fetch instructions from memory on byte boundaries In order to trigger a logic analyzer on a symbol at an odd numbered address the address must be masked off The Align to Byte option allows you to mask off an address The symbol main occurs at address 100F The processor being probed is a 68040 which fetches instructions on long word 4 byte boundaries In order to trigger on the address 100F the address must be masked off to the nearest 4 byte boundary The Align to Byte option would be set
35. mbol Utility You can also use a GPA file to define symbols which are not included in a supported OMF file Example Features and Functions Creating a GPA Symbol File Creating a GPA Symbol File You can create a GPA symbol file using any text editor that supports ASCII format text Each entry in the file you create must consist of a symbol name followed by an address or address range Each symbol name is a string of ASCII characters The string can be very long but the logic analyzer will truncate the string and use only the first 16 characters The address or address range corresponding to a given symbol is a hexadecimal number The address must appear immediately on the same line of the text file as the symbol name Addresses must be separated from symbol names by one or more blank spaces or tabs Address can be specified as a single hexadecimal value or as a range in the following format beginning address ending address It is possible to generate a GPA file from the symbol or load map output of most language tools Simple Format A GPA file can be a simple list of name address pairs main 00001000 00001009 test 00001010 0000101F varl 00001E22 this is a variable This example defines two symbols that correspond to address ranges and one point symbol that corresponds to a single address Features and Functions GPA File Format GPA File Format A GPA file can be divided into records us
36. n OMF file Use this option if some of the sections or segments of your code is relocated in memory at run time This can occur if your system dynamically loads parts of your code so that the memory addresses that the code is loaded into are not fixed To use this option highlight the memory section that you want to offset then select the Select field Choose one of the offset options described below If you have loaded more than one symbol file the Section Relocation option applies to whichever file is currently displayed in the OMF File field To select a different file use the View option in the Current Loaded Files menu Relocation of OMF Memory Sections Name Address Space Address const Cunused b34 libe Cunused b7a prog Cunused 0 OMF File A SYMLOP X Section Relocation Menu 3 8 Features and Functions Section Relocation Option Set Absolute Section Location Use this option to set an absolute address for the start of the selected section when you know the run time address of the section Offset This Section Use this option to add an offset to the start of the selected section when you know the relocation offset of the section The value entered will be added to the section address that was contained in the OMF file All symbols falling within the address range of this section will be offset by this value Offset All Sections This option adds an offset to the starting addresses of
37. n be ordered from your HP Sales Office a Goto the System Utilities menu b Select the button labeled Update FLASH ROM c Insert the first flexible disk and follow the onscreen instructions The flexible disks now serve as backup copies for the files on the hard disk or in flash ROM For more information about copying a file or updating the logic analyzer s system software see the appropriate logic analyzer User s Guide 1 3 Getting Started To Install the Symbol Utility Softw are To Install the Symbol Utility Software The first time you load the symbol utility the logic analyzer must read it from the flexible disk at power up To install the Symbol Utility software on the HP logic analyzer take the following steps 1 With the instrument turned off insert the flexible disk labeled HP E2450A Symbol Utility software into the flexible disk drive on the logic analyzer 2 Turn on the instrument The software loads automatically if you insert the flexible disk prior to turning on the instrument The software takes a few minutes to load CAUTION Proceed only when the light on the front of the flexible disk drive stops blinking If you proceed before the light goes out the installation will be incomplete and you will have to start the process over at step 1 In the System Configuration menu System External I O menu on benchtop logic analyzers menu the Symbol Utility should now appear in the Options di
38. ng to the symbols that you can define in the Format menu and e OMF Symbols corresponding to the symbols in an OMF symbol file that you have loaded using the Symbol Utility This field appears at the top of the pop up menu when you select a trigger term State Sequence Levels While storing TRIGGER on a O User Symbol Store any offset User Symbol Table Table OMF Symbol Table absolute Label gt i Terms absolute absolute absolute tt AAAA Symbol Type Selection Pop up Example Features and Functions Find Field Find Field Use this field to locate particular symbols in the symbol databases that you would like to use in a trigger specification When you first access the OMF Symbol Table menu the Find field will display an asterisk The asterisk is a wildcard character that you can use in browsing the symbol database for the symbol that you want To begin using this field select it type in the name of a file or symbol then select Done When you type in a symbol name and select Done the system searches the symbol database for symbols that match this name Asterisk wildcard The asterisk wildcard represents any characters When you perform a search on the symbol database using just the asterisk you will see a list of all symbols contained in the database The asterisk can also
39. ols in the Trace List 2 6 To Trigger ona Symbol 2 8 To View a List of Symbol Files Currently Loaded into the System 2 11 To Remove a Symbol File From the System 2 12 3 Features and Functions The OMF Symbol File Load Menu 3 3 OMF File Field 3 4 Drive Field 3 4 Label Field 3 5 Module Field 3 5 Load Field 3 6 Current Loaded Files Field 3 7 Section Relocation Option 3 8 Contents 1 Contents The OMF Symbol Browser Menu 3 10 Symbol Type Selection Field User vs OMF 3 11 Find Field 3 12 Browse Results Display 3 14 Align to xx Byte Option 3 15 Offset Option 3 16 Context Display 3 17 Address Display 3 17 Symbol Mode Field 3 18 The General Purpose ASCII File Format 3 19 Creating a GPA Symbol File 3 20 GPA File Format 3 21 Sections 3 23 Functions 3 24 Variables 3 25 Source Line Numbers 3 26 Start Address 3 26 Comments 3 27 Glossary Index Contents 2 Getting Started See Also Getting Started This chapter describes how to install the HP E2450A Symbol Utility software on the hard disk of the logic analyzer Instructions are included on how to locate the menus associated with the HP E2450A Symbol Utility Once the Symbol Utility is installed you can use the OMF Symbol Load menu to load Object Module Format OMF symbol files into the analyzer Once you have loaded the files you can view the symbols in the Listing and Waveform menus You can use the OMF Symbol browser menu
40. rned to a service facility designated by Hewlett Packard For products returned to Hewlett Packard for warranty service the Buyer shall prepay shipping charges to Hewlett Packard and Hewlett Packard shall pay shipping charges to return he product to the Buyer However the Buyer shall pay all shipping charges duties and taxes for products returned to Hewlett Packard from another country Hewlett Packard warrants hat its software and firmware designated by Hewlett Packard for use with an instrument will execute its programming instructions when properly installed on hat instrument Hewlett Packard does not warrant that the operation of he instrument software or firmware will be uninterrupted or error free Limitation of Warranty The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by the Buyer Buyer supplied software or interfacing unauthorized modification or misuse operation outside of the environmental specifications for the product or improper site preparation or maintenance No other warranty is expressed or implied Hewlett Packard specifically disclaims the implied warranties of merchantability or fitness for a particular purpose Exclusive Remedies The remedies provided herein are the buyer s sole and exclusive remedies Hewlett Packard shall not be liable for any direct indirect special incidental or consequential damages whether b
41. s that are currently loaded is displayed Highlight the measurement module and file name that you want to delete Select Delete to remove the symbol file from the system Select Done to return to the OMF Symbol Load menu Loaded Database Files Analyzer Machine Label File Type 2MB Data Acq E Labi General Purpose Ascii A 451000 GP A C 451000 NS 1007 500MHz LA C ADDR 0MF386 Highlight the file that you want to delete C RAY BND 386 C RAY_BND NS 100 500MHz LA C ADDR TEEE 695 A SYMLOP C ASYMLOP NS Select Delete to delete the file PURE Features and Functions See Also Features and Functions The HP E2450A Symbol Utility adds two main menus to your logic analyzer They are the Symbol File Load menu and the Symbol Browser menu This chapter describes the features and functions of both of these menus The symbol utility also provides a General Purpose ASCII GPA symbol file format that you can use if your language tool chain does not produce OMF files in one of the supported formats The details of the GPA file format are also described in this chapter The Logic Analyzer Training Kit for information on how to use the logic analyzer interface The User s Guide of your logic analyzer for information on the features and functions of the logic analyzer The OMF Symbol File Load Menu The OMF Symbol Load menu is used
42. ser Symbol Table i Symbol l Label _ ADD a an User Symbol Table Symbol Tup Stop New symbol OMF Symbol Table i 1 8 Getting Started To Access the Symbol File Load Menu The OMF Symbol Load menu appears Use this menu to load an Object Module Format OMF file into the logic analyzer See Also Chapter 2 Using the Symbol Utility for information on how to load a symbol file OMF Symbol Table OMF File Drive l Hard Disk r Label ADDR Section Relocation Module 100 500MHz LA C l Current Loaded Files Load Done OMF Symbol Load Menu 1 9 Getting Started To Access the Symbol Browser To Access the Symbol Browser 1 Goto the Analyzer Trigger menu 2 Set the base for the label that you want to work with to symbol 3 Select a trigger term corresponding to the label and pattern term that you want to use Set the base to Symbol Selecta trigger term Label gt ADDR DATA j STAT CYCLE REQ Terms Symbol Hex nl Symbol Hex Hex a absolute XXXXXXXX KXXKXXXX IC xx x oY f absolute XKXXXXKK KXXXKXXX xx x absolute XXXXMMMX XXXXXKKX I 8x x d absolute XXXXMMMX XKKXXXXK C xx ex 4 Inthe Symbol pop up menu select the large field at the top of the pop up
43. splay If it does not appear repeat steps 1 and 2 l System External I O Connected To Connected To ettings mm Parallel Ethernet X Printer Settings Controller X Hindow 136 Channels 70 MHz STATE 250 MHz TIMING When the Symbol Utiltity oI2ZK Samples is loaded on a benchtop analyzer it shows up net Getting Started To Install the Symbol Utility Software 3 Select the Module field in the top left corner of the display then choose Symbol Utility from the pop up menu Symbol Utility Select this field and choose Symbol Utility or Symbols How to use the OMF Symbol Utility 1 Select file in 2 Access loaded otherwise select Cancel Note 5 minutes Select Cancel to cancel the installation softw are The Symbol Utility Software booted from the flexible drive If you want to install this software onto the internal hard drive select Install Installation will take approximately DMF symbol ile was assign witch to p field at Install Select Install to install Specify Database Install Symbol the software Software This figure shows the HP 16500C logic analyzer menu The benchtop logic analyzers are similar If you are using a benchtop logic analyzer the Install Cancel menu does not appear The Install button appears to the right of the Sp
44. t contains the OMF file Section Relocation Module 100 S500MH2 LA C Current Loaded Files l Load Done Choose the desired module and label 2 3 Using the Symbol Utility To Load a Symbol File 5 Select the OMF File field In the pop up turn the knob to highlight the desired file name Select the Select field to choose the file OME Gumbel Tabi a File Selection Menu Name File Type OMF File C580 OMF DOS FILE F68030 DOS FILE 168030_I DOS FILE Select the OMF a OMF_FILE DIRECTORY ila fi RAY_BND 386 DOS FILE File field 51000 GPA DOS FILE a Disk SYSTEM DIRECTORY Eit DR Highlight the file e you wantto load ection ra Section Re AC i i Select Refresh Cancel ii Select this field to SE a ee choose the file If necessary use the knob and the Select field to choose a different directory 6 Select the Load field then select Done OMF Symbol Table OMF File CS60 OMF Drive Hard Disk Label ADDR l Section Relocation Module 100 500MHz LA C Load Done Select Load to load Se E Select Done to return the file to the module menus it See Also Using the Symbol Utility To Load a Symbol File The symbol file is loaded only into the measurement module you specified You can load the same symbol file into s
45. text Any text following a character is ignored by the Symbol Utility and can be used to comment the file Comments can appear on a line by themselves or on the same line following a symbol entry Example This is a comment 3 27 Glossary benchtop logic analyzer A small standalone HP logic analyzer that is not part of the HP 16500 logic analy sis system As of this edition only the HP 1660C CS series and the HP 1670A D series can run the HP E2450A Symbol Utility browser A pop up menu which al lows you to examine and select OMF symbols data label A symbol which refers to an arbitrary value much like the labels that are available in the logic analyzer without the Symbol Utility All other symbols refer to addresses Data labels can be defined only in the General Purpose ASCII symbol file format database file The file created by the symbol utility and stored on the logic analyzer s internal hard disk The file is organized so that the Sym bol Utility can efficiently look up the symbol associated with any address or label value Database files have a ns file name extension ELF DWARF A portable OMF format consisting of the ELF Executable and Linkable Format and the DWARF Debugging Infor mation Format for various processors including Intel 80960 PowerPC and MIPS GPA The General Purpose ASCII file format These symbol files are created by the user using an ASCII text editor
46. the measurement module before you can trigger on OMF symbols 1 Goto the Trigger Menu 2 Set the base of the label that you want to specify a trigger term with to Symbol Typically you will use the ADDR label Access the Trigger menu 100 sooniz Lac Trigger 1 State Sequence Levels Tamer While storing no state Control TRIGGER on a 1 time aa Acquisition a Store anystate Count Time Clear Label gt ADDR DATA CYCLE BE SIZE Symbol a Hex Symbol Symbol Symbol Set the base of the absolu X ab X ADDR label to Symbol absolute XXXXXXXX XXXXXXXX OPCOD J absolute XXXXXXXX XXXXXXXX absol X absolu X abx absolute XXXXKKXX XXXXXXXX absol X absolu X abx absolute XXXXKXXX KXKXKXXX absol X HITE absolu X ab xX ie 0 Using the Symbol Utility To Trigger on a Symbol 3 Select a trigger term that you want to use The trigger term is the field that corresponds to the term column on the left side of the display and the label row in the center of the display 4 Inthe pop up menu select the User Symbol Table field Choose OMF Symbol Table a E 3 100 SoomH2z Lac Trigger 1 State Sequence Levels While storing no TRIGGER on a aT Select this field and 1 Ffl controt choose OMF Acquisition Symbol Table
47. to Align to 4 bytes The Symbol Utility masks the address of the symbol main to 100C hex before it is used as a trigger term Example Features and Functions Offset Option Offset Option The Offset option allows you to add an offset value to the starting point of the symbol that you want to use as a trigger term You might do this in order to trigger on a point in a function that is beyond the preamble of the function or to trigger on a point that is past the prefetch depth of the processor Setting an offset helps to avoid false triggers in these situations The offset specified in the Offset field is applied before the address masking is done by the Align to xx Byte option An 80386 processor has a prefetch depth of 16 bytes Functions funcl and func2 are adjacent to each other in physical memory with func2 following funcl In order to trigger on func2 without getting a false trigger from a prefetch beyond the end of funcl you need to add an offset value that is equal to or greater than the prefetch depth of the processor to your trigger term In this case you want to add an offset of 16 bytes so you would set the value of the Offset by field to 10 hex When you specify func2 as your trigger term the logic analyzer will trigger on address func2 10 Features and Functions Context Display Context Display The Context display just below the Find field indicates the original OMF source fil
48. to load the OMF files containing ae the symbols that you want into the logic analyzer OMF Symbol Table OMF File Drive Fiexibie Disk Label ADDR Section Relocation Module 100 S500MH2 LA C Current Loaded Files l Load Done OMF Symbol File Load Menu 3 3 Features and Functions OMF File Field OMF File Field The OMF File field is used to select the OMF file that you would like to load into the system When you initially access the OMF Symbol Table menu the OMF File field will be blank To use this field select it A File Selection pop up menu appears The pop up menu shows you a list of files at the root of the drive that is currently selected in the Drive field Scroll the list of files to select the symbol file that you want to use Use the Select field to choose the file or to choose a subdirectory to browse through Select Cancel to close the menu Refresh Field The Refresh field causes the Symbol Utility to reread the contents of the disk drive Changes made to the disk drive contents are not immediately read by the symbol utility Use the Refresh key to re read the disk drive contents if they have changed Drive Field Use this field to specify the disk drive that contains the OMF file that you want to load You can specify Hard Disk for the analyzer hard disk drive or Flexible Disk for the analyzer flexible disk drive Fea
49. tures and Functions Label Field Label Field Use this field to specify the data label that the symbols will correspond to In most cases you will use the ADDR label since you will be loading symbols into the system that correspond to the address bits of the processor that you are working with If you would like to load symbols that correspond to another label select this field then choose the label that you want to use from the pop up menu Module Field Use this field to specify the measurement module of an HP 16500B C that you want to load the OMF file symbols into When you select this field you will see a pop up menu listing the measurement modules that are currently installed in the HP 16500 frame For benchtop logic analyzers this field is always Analyzer Once the symbol file is loaded you will be able to view the symbols in the Listing and Trigger menus of the module that you specify The OMF symbols will not be available in any other module than the one the is specified in the Module field To view symbols in more than one module specify a different module in the Module field and load the symbol file again 3 5 Features and Functions Load Field Load Field Select this field to load the symbol file into the logic analyzer During the load process a symbol database file with a ns extension will be created by the Symbol Utility You can load multiple symbol databases into the system at the same time
Download Pdf Manuals
Related Search