Intel IQ80321 manual Stepping Through the Code, Setting CodeLab Debug Options

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Intel® IQ80321 I/O Processor Evaluation Platform

Getting Started and Debugger

B.7.5 Stepping Through the Code

The “led.c” file contains a function that is called from code in “blink.c”. Tis exercise steps through the code and utilizes a few of the most common step tools.

1.Launch the debugger, open Tester321LED, and open the “blink.c” and “led.c” files.

2.Set a breakpoint on the following line in “blink.c”:

displayLED(leds[8],leds[0]); /* LED display '80'*/

3.Press Go.

Program execution sit on the first breakpoint.

4.

Press the “Step Over” icon

and notice how execution jumps over the function call to the

 

next line of execution.

 

5.

Now try the “Step Into” icon

and note that the pointer has now jumped into the function

“displayLED”, which is located in the “led.c” file.

6.Press the “Step Over” icon again and watch the pointer advance within the function to the next executable line.

7.

Now press the “Step Out of” icon

and notice how execution leaves the called function and

 

waits on the next executable line in “blink.c”.

8.

The animate icon

can also be used to provide a “Step Into” effect that occurs at a

specified time interval (default of 1 second). This can be modified in the “Settings” section of the “View/Options” menu. Experiment with this as desired.

9. Use Halt to stop the animate mode before the next breakpoint.

10.Also note that Go can be pressed at any time to continue execution from the current line to the next breakpoint or program end.

B.7.6 Setting CodeLab Debug Options

Besides the Animate debug time interval setting briefly mentioned in step 8 of the previous exercise, many useful options can be accessed from the “View/Options” menu.

1.

Experiment here by bringing up the Registers window (click

and change the view options

 

between binary and decimal; for example).

 

 

 

Hint: Settings tab, Interface, Radix

 

 

2.

Also try bringing up the Memory window (click

) and change the number of columns

 

between 4 and 2 and notice the changes.

 

 

Hint: Settings tab, Memory Window, Number of Columns

Note: Press window icons a second time to remove them from view.

Again, there are many features of the debug environment not discussed here. Please see the CodeLab manuals for a full description of debug features.

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Contents Board Manual Intel IQ80321 I/O Processor Evaluation PlatformBoard Manual Intel IQ80321 I/O Processor Evaluation PlatformContents Debug Interface Dram 100 119 Figures Tables 105 Description Revision HistoryThis page intentionally left blank Related Documents Document Purpose and ScopeComponent Reference Electronic InformationComponent References Electronic InformationTerms and Definitions Terms and DefinitionsDefinition Intel 80321 I/O Processor Intel 80321 I/O Processor Block DiagramIntel IQ80321 I/O Processor Evaluation Platform Intel IQ80321 Evaluation Platform Board Features Summary of FeaturesFeature Definition Power and Backplane Requirements Kit ContentHardware Installation First-Time Installation and TestSupported Tool Buckets Factory SettingsContents of the Flash Development StrategyTarget Monitors Redhat RedbootARM Firmware Suite Semihosting File I/O ARM AngelHost Communications Examples Serial-UART CommunicationEthernet-Network Communication Jtag Debug Communication Jtag Debug CommunicationGNUPro GDB/Insight Communicating with RedbootIntel IQ80321 I/O Processor Evaluation Platform GDB set remotebaud Connecting with GDBARM Extended Debugger This page intentionally left blank Intel Functional DiagramBoard Form-Factor/Connectivity Form-Factor/Connectivity FeaturesPower Features PowerSupported Dimm Types Battery BackupDDR Memory Features Memory SubsystemFlash Memory Requirements Flash Memory RequirementsIntel 80321 I/O Processor Operation Mode 80321 I/O Processor Interrupt RoutingIntel IQ80321 Evaluation Platform Board Peripheral Bus Peripheral Bus FeaturesFlash ROM Flash ROM FeaturesUart Uart FeaturesHEX Display on the Peripheral Bus HEX DisplayRotary Switch Requirements Rotary SwitchBattery Status Buffer Requirements Battery StatusIntel 82544EI Gigabit Ethernet Controller Debug InterfaceConsole Serial Port Ethernet PortJtag Port Pin-out Logic-Analyzer ConnectorsJtag Debug 3.1 Jtag PortMictor J3F2 Micor J3F2 Signal/PinsMicor J2F1 Signal/Pins Schematic Signal NameMictor J2F1 Mictor J1C1 Micor J1C1 Signal/PinsMictor J3C1 Micor J3C1 Signal/PinsMictor J2C1 Micor J2C1 Signal/PinsBoard Reset Scheme Reset Requirements/SchemesReset Sources Switch Summary Switches and JumpersUser Defined Switches PCI-X Bridge Initialization SignalsPcix Initialization Summary Default Switch Settings Visual Connector Summary Jumper SummaryGeneral Purpose Input/Output Header S9E1-1 S9E1-2 S9E1-3 S9E1-4 S8E1-6 Operation Mode Secondary PCI/PCI-X Operation SettingsPrimary PCI/PCI-X Operation Settings Primary PCI/PCI-X Operation SettingsSwitch S7E1- 2/3 Detail Descriptions of Switches/JumpersSwitch S7E1- 6/7 Switch S7E1- 4/5S7E1-8 Switch S7E1Switch S7E1 8 Descriptions Switch S7E1 8 Settings and Operation ModeSwitch S8E1 Switch S8E1 6 Descriptions Switch S8E1 5 DescriptionsSwitch S8E1 5 Settings and Operation Mode Switch S8E1 5 Driver Mode Output ImpedancesSwitch S8E1 8 Settings and Operation Mode Switch S8E1 7 DescriptionsSwitch S8E1 7 Settings and Operation Mode Switch S8E1 8 DescriptionsSwitch S8E2 Switch S8E2 1/2Switch S9E1 4 Descriptions Switch S9E1Switch S9E1 13 Descriptions Switch S9E1 13 Settings and Operation ModeSwitch S1D1 1/2 Switch S4D1 1/2Switch S4D1 3/4 Jumper J1G2 Jumper J3E1Jumper J3G1 Jumper J9F1 Jumper J9E1This page intentionally left blank Private Device Configuration Private Device Configuration RequirementsIdsel Routing for Private Device Configuration Interrupt Routing for Secondary PCI-X Private Device Interrupt Routing for Private Device ConfigurationParameter Voltages DramComponents on the Peripheral Bus DDR Memory Bias Voltage Minimum/Maximum ValuesSoftware Reference Address Read Register Write Register Uart Register SettingsHex Display Connection to Peripheral Bus Register Bitmap 7-Segment Display LSB FE85 0000h Write Only Ethernet Board Support Package BSP Examples Intel 80321 I/O Processor Memory MapIntel 80321 I/O Processor Memory Map Physical Address Range Description Redboot* Intel IQ80321 Memory MapRedboot Intel IQ80310 Physical Memory Map Redboot Intel IQ80321 Physical Memory Map VisualRedboot Intel IQ80310 Virtual Memory Map Redboot Intel IQ80321 Virtual Memory Map VisualRedboot Intel IQ80321 Files Redboot Intel IQ80321 DDR Memory Initialization Sequence Redboot Switching This page intentionally left blank IQ80310 and IQ80321 Comparisons IQ80310 and IQ80321 Comparisons Introduction PurposeNecessary Hardware and Software Related Web Sites Hardware Setup SetupSoftware Flow Diagram Software SetupCreating a New Project New Project SetupConfiguration Overview Flashing with JtagUsing Flash Programmer Building an Executable File From Example Code Debugging Out of FlashRunning the CodeLab Debugger Launching and Configuring DebuggerDisplaying Source Code Manually Loading and Executing an Application ProgramUsing Breakpoints Stepping Through the Code Setting CodeLab Debug OptionsExploring the CodeLab Debug Windows Registers Window Watch WindowVariables Window Hardware Breakpoints Debugging BasicsHardware and Software Breakpoints Software BreakpointsExceptions/Trapping 104 Board Manual 105 106 Board Manual 107 Flash Memory Evaluation Board 108 Board Manual 109 110 Board Manual 111 112 Board Manual 113 114 Board Manual 115 116 4 4 Debug and Console Windows 118 Board Manual 119 3 C.9.3 Exceptions/Trapping
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