CrossWorks for ARM User Guide

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egister is a string describing the register to set and must be one of r0, r1, r2, r3, r4, r5,r6, r7, r8, r9, r10, r11, r12, r13 or sp, r14 or lr, r15 or pc, cpsr, r8_fiq, r9_fiq, r10_fiq,r11_fiq, r12_fiq, r13_fiq, r14_fiq, spsr_fiq, r13_svc, r14_svc, spsr_svc, r13_abt, r14_abt,spsr_abt, r13_irq, r14_irq, spsr_irq, r13_und, r14_und, spsr_und.Note that this function will only change the CPU register state if the CPU is stopped.TargetInterface.trstSynopsisDescriptionTargetInterface.trst()TargetInterface.trst performs a JTAG TAP reset.TargetInterface.waitForDebugStateSynopsisDescriptionTargetInterface.waitForDebugState(timeout)TargetInterface.waitForDebugState waits for the target to enter debug state with atimeout of timeout milliseconds. If the timeout period expires and exception is thrownwhich is caught by the debugger.Program loadingCrossStudio for ARM supports FLASH programming (and subsequent debugging) byloading a program into the RAM of the target and transmitting it the data to beprogrammed.The use of a target loader is determined by the value of the Loader File Path projectproperty defined for the appropriate configuration of the project. The Loader File Pathproperty specifies the location of the loader executable to use, if this is defined theloader executable will be downloaded onto the target an run prior to download of themain application.In addition to the Loader File Path property, the Loader File Type project propertymust be specified. This tells CrossStudio how to communicate with the loaderprogram. The various communication mechanisms available are explained in moredetail later. The Load File Typeproperty may be set to one of the following:•LIBMEM RPC Loader— Calls to LIBMEM library functions will be made directlyusing a remote prodedure call mechanism.•Comms Channel Loader — The ARM debug comms channel is used tocommunicate with the loader.166 Chapter 14 ARM Target Support
•Fast Comms Channel Loader — The ARM debug comms channel is used tocommunicate with the loader. This scheme is significantly faster at downloadingthan Comms Channel Loader because it makes the assumption that the loaderprogram is always ready to read data and therefore does not check the ARMcomms channel status before transmitting data. This may not be suitable for alltargets or loaders. If you experience reliability problems downloading andverifying programs using this setting, you should revert to the Comms ChannelLoadersetting.•RAM Loader — The targets RAM is used to communicate with the loader.To write your own loader programs you should use the LIBMEM loader library.ARM Device Specific Target SupportChapter 14ARM Device Specific Target Support167
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CrossWorks for ARMUser GuideRowley
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38 The status bar40 The editing wor
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Chapter 16 173 CrossStudio menu sum
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Part VIAppendicesChapter 35 337 Fil
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1IntroductionThis guide is divided
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•Integrated Debugger The debugger
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After purchasing CrossWorksWhen you
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•Sequences which may be repeated
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Part IICrossStudio ReferenceThis se
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2CrossStudio TutorialCrossStudio al
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The Links to system files group sho
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•In the Project Explorer, right c
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•Select the main.c file.•Click
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Building projectsNow that the proje
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Project code and data sizesDevelope
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Displaying the Symbol BrowserTo dis
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Printing Symbol Browser contentsYou
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•Type F5.The workspace will chang
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Setting up againWhat we'll now do i
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Stopping and starting debuggingYou
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3OverviewThis section introduces th
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The menu barThe menu bar conatins d
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PanelCaret positionCaps lock status
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Changing to Multiple Document Works
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4Project managementCrossWorks has a
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•Combining — a project that can
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•In the New Project dialog, selec
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•Click on the project item to rem
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There is a special configuration na
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Project dependencies and build orde
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•Click on the Project tab.•Sele
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5Building projectsCrossStudio provi
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•From the Build menu, select Buil
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6Source code controlCrossWorks supp
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—or—•In the Project Explorer,
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7Debug expressionsThe debugger can
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8Basic editingCrossStudio has a bui
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KeystrokeLeftRightHomeEndPageUpPage
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—or—•From the Edit menu, clic
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•Either click somewhere in the do
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To cut whole lines from the current
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•From the Edit menu, click Advanc
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•Set the Indent Closing Brace pro
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•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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Page 125 and 126: Memory window updatesThe memory win
Page 127 and 128: Showing the Registers windowTo disp
Page 129 and 130: clicking on one of the entries in t
Page 131 and 132: Watch tool barButtonDescriptionDisp
Page 133 and 134: Expressions you can watchHelp windo
Page 135 and 136: Output windowThe Output window cont
Page 137 and 138: The Project Explorer tool barButton
Page 139 and 140: Source navigator windowOne of the b
Page 141 and 142: —or—•On the Source Navigator
Page 143 and 144: variables, the range is the range o
Page 145 and 146: Grouping symbols by source fileWhen
Page 147 and 148: •In the Symbol Browser, right cli
Page 149 and 150: —or—•In the Targets window, c
Page 151 and 152: Controlling target connectionsReset
Page 153 and 154: 13Target interfacesA target interfa
Page 155 and 156: •Parallel Port Address The base a
Page 157 and 158: •Identify Target Specifies whethe
Page 159 and 160: •Processor Stop Time The timeout
Page 161 and 162: 14ARM Target SupportWhen a target s
Page 163 and 164: •fiq_handler - This is the defaul
Page 165 and 166: There is a Heap Size linker project
Page 167 and 168: Target script fileThe target interf
Page 169 and 170: efore the debugger starts accessing
Page 171 and 172: DescriptionTargetInterface.peekByte
Page 173: DescriptionTargetInterface.setICEBr
Page 177 and 178: 15DialogsDebug file search editorWh
Page 179 and 180: •Show full path in title bar. Ena
Page 181 and 182: 16CrossStudio menu summaryThe follo
Page 183 and 184: Menu command Keystroke DescriptionR
Page 185 and 186: Menu command Keystroke DescriptionC
Page 187 and 188: Menu command Keystroke DescriptionP
Page 189 and 190: The Edit Selection menuEdit Selecti
Page 191 and 192: Advanced menuThe Advanced menu prov
Page 193 and 194: Menu command Keystroke DescriptionL
Page 195 and 196: The Browser menuBrowser commandsMen
Page 197 and 198: Search menu commandsMenu command Ke
Page 199 and 200: The Build menuBuild menu commandsMe
Page 201 and 202: Menu command Keystroke DescriptionS
Page 203 and 204: Debug Control commandsMenu command
Page 205 and 206: The Debug Windows menuDebug Windows
Page 207 and 208: Menu command Keystroke DescriptionD
Page 209 and 210: The Help menuHelp menu commandsMenu
Page 211 and 212: Part IIITasking Library TutorialThi
Page 213 and 214: 17OverviewThe CTL enables your appl
Page 215 and 216: Timer supportIf your application ca
Page 217 and 218: 18TasksEach task has a correspondin
Page 219 and 220: #include void task1(void *p){// tas
Page 221 and 222: 19Event setsAn event set is a means
Page 223 and 224: 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
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If the subject sequence begins with
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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
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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
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408 Chapter 39 Glossary
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