User Manual - Terasic

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can write to the PIO data register, turning the LED on and off. The PIO is just one of many SOPCperipherals that you can use in a system. To learn about the PIO core and other embedded peripheralcores, refer to Quartus II Version 10.1 Handbook Volume 5: Embedded Peripherals.When developing your own designs, you can use the software functions and resources that areprovided with the Nios II HAL. Refer to the Nios II Software Developer’s Handbook for extensivedocumentation on developing your own Nios II processor-based software applications.7.8 Debugging the ApplicationBefore you can debug a project in the NIOS II IDE, you need to create a debug configuration thatspecifies how to run the software. To set up a debug configuration, perform the following steps:1. In the hello_world.c , double-click the front of the line where you would like to set breakpoint,as shown in Figure 7-60.Figure 7-60 Set Breakpoint2. To debug your application, right-click the application, hello_world_0, and select Debug as >Nios II Hardware.3. If the Confirm Perspective Switch message box appears, click Yes.After a moment, the main() function appears in the editor. A blue arrow next to the first line of codeindicates that execution stopped at that line.126
5. Select Run > Resume to resume execution.When debugging a project in the Nios II IDE, you can pause, stop or single step the program, setbreakpoints, examine variables, and perform many other common debugging tasks.Note: To return to the Nios II C/C++ project perspective from the debug perspective, click the twoarrows >> in the top right corner of the GUI.7.9 Configure System LibraryIn this section you will learn how to configure some advanced options in the Nios II IDE. Byperforming the following steps, you can change all the available settings:1. In the Nios II IDE, right-click hello_world_0 and select System Library Properties. TheProperties for hello_world_0_syslib dialog box opens.2. Click System Library in the tree on the left side. The System Library page contains settingsrelated to how the program interacts with the underlying hardware. The settings have names thatcorrespond to the targeted NIOS II hardware.3. In the Linker Script box, observe which memory has been assigned for Programmemory(.text), Read-only data memory(.rodata), Read/write data memory(.rwdata), Heapmemory, and Stack memory, see Figure 7-61. These settings determine which memory is used tostore the compiled executable program. You can also specify which interface you want to use forstdio , stdin, and stderr. You can also add and configure an RTOS for your application and configurebuild options to support C++, reduced device drivers, etc.4. Select onchip_memory2 for all the memory options in the Linker Script box, as shown inFigure 7-61.127
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Chapter 1IntroductionThe DE0-Nano b
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1.2 About the KITThe kit comes with
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2.3 Power-up the DE0-Nano BoardThe
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Figure 3-1 Programming a serial con
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Figure 3-7 Connections between FPGA
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GPIO_03 PIN_A3 GPIO Connection DATA
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Figure 3-10 Pin distribution of the
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3.7 Digital AccelerometerThe ADXL34
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• Power Distribution SystemFigure
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8. The Control Panel is now ready f
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4.3 Switches and PushbuttonsChoosin
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The Sequential Read function is use
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4.7 Overall Structure of the DE0-Na
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The generated system is described u
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Figure 5-3 The DE0-Nano Board Type
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Figure 5-6 Project Settings• Proj
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6.2 Before You BeginThis tutorial a
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The driver is available within the
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The driver will now be installed as
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Figure 6-9 Project informationd. Cl
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Figure 6-11 my_first_fpga project6.
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always @ (posedge CLOCK_5)// on pos
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14. Press the Esc key or click an e
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d. Click Next.Figure 6-21 MegaWizar
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Figure 6-23 MegaWizard Plug-In Mana
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Figure 6-25 PLL Symbol11. Click OK
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4. Place the new pin onto the BDF s
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Figure 6-31 Change the output BUS n
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Figure 6-34 lpm_mux settings9. Clic
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15. Add input buses and output pins
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Figure 6-40 Adding the KEY [0] Inpu
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Figure 6-42 Completed Pin Planning
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Figure 6-44 Compilation Message for
Page 76 and 77: Figure 6-46 Programmer Window2. Cli
Page 78 and 79: Figure 6-48 Downloading CompleteCon
Page 80 and 81: Figure 6-50 Setting unused pinsClic
Page 82 and 83: Figure 7-1 Start to Create a New Pr
Page 84 and 85: Figure 7-5 New Project Wizard: Fami
Page 86 and 87: Figure 7-8 A New Complete Project5.
Page 88 and 89: Figure 7-12 Create New System[2]7.
Page 90 and 91: Figure 7-15 Nios II Processor9. Cli
Page 92 and 93: Figure 7-17 Rename the CPU (1)Figur
Page 94 and 95: Figure 7-20 JTAG UART’s add wizar
Page 96 and 97: Figure 7-22 Rename JTAG UART15. Add
Page 98 and 99: Figure 7-24 On-Chip Memory Box16. M
Page 100 and 101: Figure 7-26 Add On-Chip memory17. R
Page 102 and 103: Figure 7-29 Updated CPU settings19.
Page 104 and 105: Figure 7-31 Add PIO20. Click Finish
Page 106 and 107: 22. Select System > Auto-Assign Bas
Page 108 and 109: Figure 7-38 SOPC Builder generation
Page 110 and 111: 33. Figure 7-42 show a blank Verilo
Page 112 and 113: Figure 7-43 Input verilog TextFigur
Page 114 and 115: 36. Compile the project, by selecti
Page 116 and 117: Figure 7-51 Blank Pins39. Input Loc
Page 118 and 119: Figure 7-54 Quartus II ProgrammerTh
Page 120 and 121: Figure 7-55 Nios II IDE New Project
Page 122 and 123: ● alt_sys_init.c: an initializati
Page 124 and 125: #include "system.h"#include "altera
Page 128 and 129: Figure 7-61 Configuring System Libr
Page 130 and 131: Figure 8-2 Pulse Width ModulationFi
Page 132 and 133: Table 8-1 DIP Switch SettingsDIP Sw
Page 134 and 135: Figure 8-5 ADC Reading hardware set
Page 136 and 137: • KEYThe KEY button is driven by
Page 138 and 139: Figure 8-11 4-wire SPI Timing Diagr
Page 140 and 141: • Input “1” to start Analog t
Page 142 and 143: In this demo, the accelerometer is
Page 144 and 145: Figure 9-1 Convert Programming File
Page 146 and 147: Figure 9-3 Select Devices Page146
Page 148 and 149: Figure 9-5 Compression the sof file
Page 150 and 151: Figure 9-7 Erasing setting in Quart
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