CrossWorks for ARM User Guide

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Debugging modesThe debugger supports three modes of debug•Source mode where the source code is displayed in a code editor.•Interleaved mode where the editor displays an interleaved listing of the currentlylocated source code. All single stepping is done an instruction at a time.•Assembly mode where a disassembly of the instructions around the currentlylocated instruction is shown in the editor. All single stepping is done an instructionat a time.You have already seen debugging at the source level. To single step at the assemblylevel, from the Debug menu click Control then Interleaved Mode. The editor windownow interleaves the source code of the application with the assembly languagegenerated by the compiler:In interleaved mode, debugging controls such as single step, step into, and step outwork at the instruction level, not the source level. To return to high-level sourcedebugging, select Debug > Control > Source Mode.There are other windows that help you with debugging, such as the memory view andthe watch windows, and the CrossStudio Window Reference describes these.32 Chapter 2 CrossStudio Tutorial
Stopping and starting debuggingYou can stop debugging using Debug > Stop. If you wish to restart debugging withoutreloading the program then you can use Debug > Debug From Reset. Note that whenyou debug from reset no loading takes place so it is expected that your program is builtin a way such that any resetting of data values is done as part of the program startup.You can also attach the debugger to a running target using the Debug > AttachDebugger.Chapter 2Low-level debugging33
Page 1: CrossWorks for ARMUser GuideRowley
Page 4 and 5: 38 The status bar40 The editing wor
Page 6 and 7: Chapter 16 173 CrossStudio menu sum
Page 8 and 9: Part VIAppendicesChapter 35 337 Fil
Page 11 and 12: 1IntroductionThis guide is divided
Page 13 and 14: •Integrated Debugger The debugger
Page 15 and 16: After purchasing CrossWorksWhen you
Page 17 and 18: •Sequences which may be repeated
Page 19 and 20: Part IICrossStudio ReferenceThis se
Page 21 and 22: 2CrossStudio TutorialCrossStudio al
Page 23 and 24: The Links to system files group sho
Page 25 and 26: •In the Project Explorer, right c
Page 27 and 28: •Select the main.c file.•Click
Page 29 and 30: Building projectsNow that the proje
Page 31 and 32: Project code and data sizesDevelope
Page 33 and 34: Displaying the Symbol BrowserTo dis
Page 35 and 36: Printing Symbol Browser contentsYou
Page 37 and 38: •Type F5.The workspace will chang
Page 39: Setting up againWhat we'll now do i
Page 43 and 44: 3OverviewThis section introduces th
Page 45 and 46: The menu barThe menu bar conatins d
Page 47 and 48: PanelCaret positionCaps lock status
Page 49 and 50: Changing to Multiple Document Works
Page 51 and 52: 4Project managementCrossWorks has a
Page 53 and 54: •Combining — a project that can
Page 55 and 56: •In the New Project dialog, selec
Page 57 and 58: •Click on the project item to rem
Page 59 and 60: There is a special configuration na
Page 61 and 62: Project dependencies and build orde
Page 63 and 64: •Click on the Project tab.•Sele
Page 65 and 66: 5Building projectsCrossStudio provi
Page 67 and 68: •From the Build menu, select Buil
Page 69 and 70: 6Source code controlCrossWorks supp
Page 71 and 72: —or—•In the Project Explorer,
Page 73 and 74: 7Debug expressionsThe debugger can
Page 75 and 76: 8Basic editingCrossStudio has a bui
Page 77 and 78: KeystrokeLeftRightHomeEndPageUpPage
Page 79 and 80: —or—•From the Edit menu, clic
Page 81 and 82: •Either click somewhere in the do
Page 83 and 84: To cut whole lines from the current
Page 85 and 86: •From the Edit menu, click Advanc
Page 87 and 88: •Set the Indent Closing Brace pro
Page 89 and 90: •Select Edit | Insert File menu i
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•If the search will be carried ou
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Advanced editor featuresCode Templa
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•Select Edit > Advanced > Uncomme
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9Memory map editorMemory map files
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•Input Section Names. The optiona
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10Package managementCrossWorks can
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11Linking and Section placementExec
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The startup code will need to copy
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12CrossStudio WindowsThis section i
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•Repeatedly type Ctrl+Shift+V to
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•Enable, disable and delete exist
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Editing a breakpointTo edit the pro
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—or—•From the Breakpoints win
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—or—•On the Debug tool bar, c
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—or—•On the Debug Location to
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Globals tool barButtonDescriptionDi
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Locals tool barButtonDescriptionDis
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Memory window updatesThe memory win
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Showing the Registers windowTo disp
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clicking on one of the entries in t
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Watch tool barButtonDescriptionDisp
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Expressions you can watchHelp windo
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Output windowThe Output window cont
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The Project Explorer tool barButton
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Source navigator windowOne of the b
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—or—•On the Source Navigator
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variables, the range is the range o
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Grouping symbols by source fileWhen
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•In the Symbol Browser, right cli
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—or—•In the Targets window, c
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Controlling target connectionsReset
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13Target interfacesA target interfa
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•Parallel Port Address The base a
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•Identify Target Specifies whethe
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•Processor Stop Time The timeout
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14ARM Target SupportWhen a target s
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•fiq_handler - This is the defaul
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There is a Heap Size linker project
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Target script fileThe target interf
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efore the debugger starts accessing
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DescriptionTargetInterface.peekByte
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DescriptionTargetInterface.setICEBr
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•Fast Comms Channel Loader — Th
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15DialogsDebug file search editorWh
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•Show full path in title bar. Ena
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16CrossStudio menu summaryThe follo
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Menu command Keystroke DescriptionR
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Menu command Keystroke DescriptionC
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Menu command Keystroke DescriptionP
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The Edit Selection menuEdit Selecti
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Advanced menuThe Advanced menu prov
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Menu command Keystroke DescriptionL
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The Browser menuBrowser commandsMen
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Search menu commandsMenu command Ke
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The Build menuBuild menu commandsMe
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Menu command Keystroke DescriptionS
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Debug Control commandsMenu command
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The Debug Windows menuDebug Windows
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Menu command Keystroke DescriptionD
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The Help menuHelp menu commandsMenu
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Part IIITasking Library TutorialThi
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17OverviewThe CTL enables your appl
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Timer supportIf your application ca
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18TasksEach task has a correspondin
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#include void task1(void *p){// tas
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19Event setsAn event set is a means
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ctl_events_set_clear(&e1, 1, 0);}vo
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20SemaphoresA semaphore is a counte
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}}ctl_semaphore_signal(&s1);/* reso
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21Message queuesA message queue is
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void task2(void){void *msg;…ctl_m
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22Byte queuesA byte queue is a stru
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{…ctl_byte_queue_init(&m1,queue,
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23Global interrupts controlThe Cros
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24Timer supportThe current time is
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25Programmable interrupt handlingTh
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26Low-level interrupt handlingIf yo
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27Memory areasMemory areas provide
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Part IVLibrary ReferenceLibrary Ref
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- DiagnosticsThe header file defin
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isalnumSynopsisDescriptionPortabili
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DescriptionPortabilityispunct retur
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The header file defines the macros
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INT_MAXSynopsisDescriptionPortabili
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UINT_MAXSynopsisDescriptionPortabil
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coshfsinhsinhftanhtanhfCompute hype
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DescriptionFast math librarybehavio
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atanSynopsisDescriptionPortability#
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atanhfSynopsisDescriptionFast math
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Fast math librarybehaviorIEC 60559
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fmaxSynopsis#include double fmax(do
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frexp stores power of two in the in
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ldexpSynopsis#include double ldexp(
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IEC 60559 mathlibrary behaviorPorta
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If x = +Infinity and y < 0 and y N
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sinhfSynopsis#include float sinhf(f
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tanhfSynopsis#include float tanhf(f
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- Variable argumentsThe header file
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The behaviour of va_start and va_ar
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Some CrossWorks library variants do
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produces ‘INF’ or ‘NAN’ ins
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A directive that is a conversion sp
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•‘[’. Matches a nonempty sequ
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Portabilityputchar conforms to ISO/
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DescriptionPortabilitysscanf reads
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DescriptionNotesPortabilityvsprintf
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Pseudo-random sequence generation f
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DescriptionPortabilitycalloc alloca
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Description ldiv_t stores the quoti
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See Also srand (page 302) RAND_MAX
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strtofSynopsisDescriptionPortabilit
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strtollSynopsisDescription#include
Page 316 and 317:
If the subject sequence begins with
Page 318 and 319:
Descriptionultoa converts val to a
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memchr returns a pointer to the loc
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DescriptionPortabilitystrcmp compar
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strncmp returns an integer greater
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strtok then searches from there for
Page 329 and 330:
29CrossBuildThe command line progra
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30CrossLoadCrossLoad is a command l
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This command will produce a list of
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31mkhdr - C/C++ header file generat
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32mkpkg - package creatorTo create
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33GCC Online Documentation
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34BINUTILS Online Documentation
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Part VIAppendicesAppendices
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•access The permissable access ty
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ProgramSection elements have the fo
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The next entry is the projects elem
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344 Chapter 35 File formats
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Property Type Save NameExclude From
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Property Type Save NameInclude Debu
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Property Type Save NameSuppress War
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Property Name Type Save NameARM Arc
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Property Name Type Save NameARM Flo
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Property Name Type Save NameGenerat
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Property Name Type Save NameOptimiz
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Property Type Save NameUndefine All
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Property Type Save NameZeroed Secti
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Property Type Save NameLoad Address
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Library PropertiesLibrary OptionsTh
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Printf/Scanf OptionsProperty Type S
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Property Type Save NameScanf Intege
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Property Type Save NameAdditional O
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Property Type Save NameGenerate Map
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Property Type Save NameMemory Map F
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Property Type Save NameStack Size (
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Property Type Save NamePackage Memb
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Combining OptionsThese properties a
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Target OptionsProperty Type Save Na
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Property Type Save NameARM Debug In
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Property Type Save NameDebug Handle
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Property Type Save NameJTAG Data Bi
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Property Type Save NameJTAG Instruc
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Property Type Save NameLast Loader
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Property Type Save NameLoader File
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Simulator OptionsProperty Type Save
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Keystrokes Menu DescriptionCtrl+Pag
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Keystrokes Menu DescriptionCtrl+F E
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Keystrokes Menu DescriptionEdit |Ad
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Keystrokes Menu ActionF3BackspaceDe
Page 416:
408 Chapter 39 Glossary
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