AN 985: Nios® V Processor Tutorial

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ID 784468
Date 8/28/2025
Public
Document Table of Contents
Document Table of Contents x
1. AN 985: Nios® V Processor Tutorial 2. Hello World on Agilex™ 7 FPGA F-Series Transceiver-SoC Development Kit 3. Hello World on MAX® 10 FPGA 10M50 Evaluation Kit 4. Document Revision History for the AN 985: Nios® V Processor Tutorial
1. AN 985: Nios® V Processor Tutorial x
1.1. Overview
2. Hello World on Agilex™ 7 FPGA F-Series Transceiver-SoC Development Kit x
2.1. Hardware and Software Requirements 2.2. Generating the System 2.3. Simulating the Nios® V Processor System 2.4. Programming the System 2.5. Debugging the System
2.2. Generating the System x
2.2.1. Building Hardware Design in Platform Designer Overview 2.2.2. Building Hardware Design in Platform Designer — Manual Instantiation 2.2.3. Building Hardware Design in Platform Designer — Board-Aware Flow 2.2.4. Building Hardware Design in Platform Designer — Configurable Example Design 2.2.5. Building Software Design with Ashling* RiscFree* IDE for Altera® FPGAs
2.2.2. Building Hardware Design in Platform Designer — Manual Instantiation x
2.2.2.1. Creating a New Project 2.2.2.2. Creating a Platform Designer System 2.2.2.3. Configuring Assignment and Constraint 2.2.2.4. Compiling the Quartus® Prime Software Project
2.2.2.2. Creating a Platform Designer System x
2.2.2.2.1. Adding Nios® V/m Processor IP 2.2.2.2.2. Adding On-Chip Memory II (RAM or ROM) IP 2.2.2.2.3. Adding JTAG UART IP 2.2.2.2.4. Adding Reset Release IP 2.2.2.2.5. Connect Interfaces and Signals 2.2.2.2.6. Clear System Warnings and Errors 2.2.2.2.7. Configuring the Reset Vector of the Nios® V Processor 2.2.2.2.8. Saving and Generating System HDL
2.2.2.3. Configuring Assignment and Constraint x
2.2.2.3.1. Adding Design Files 2.2.2.3.2. Adding Synopsys Design Constraint (SDC) File 2.2.2.3.3. Pin Assignments 2.2.2.3.4. Configuration and Power Management Assignments
2.2.3. Building Hardware Design in Platform Designer — Board-Aware Flow x
2.2.3.1. Creating a New Project 2.2.3.2. Creating a Platform Designer System 2.2.3.3. Configuring Assignment and Constraint 2.2.3.4. Compiling the Quartus® Prime Software Project
2.2.3.2. Creating a Platform Designer System x
2.2.3.2.1. Adding Nios® V/m Processor IP 2.2.3.2.2. Adding On-Chip Memory (RAM or ROM) IP 2.2.3.2.3. Adding JTAG UART IP 2.2.3.2.4. Adding System ID Peripheral IP 2.2.3.2.5. Adding Reset Release IP 2.2.3.2.6. Connect Interfaces and Signals 2.2.3.2.7. Clear System Warnings and Errors 2.2.3.2.8. Saving and Generating System HDL
2.2.3.3. Configuring Assignment and Constraint x
2.2.3.3.1. Adding Design Files 2.2.3.3.2. Adding Synopsys Design Constraint (SDC) File 2.2.3.3.3. Pin Assignments 2.2.3.3.4. Configuration and Power Management Assignments
2.2.4. Building Hardware Design in Platform Designer — Configurable Example Design x
2.2.4.1. Creating a New Project 2.2.4.2. Creating a Platform Designer System 2.2.4.3. Configuring Assignment and Constraint 2.2.4.4. Compiling the Quartus® Prime Software Project
2.2.4.2. Creating a Platform Designer System x
2.2.4.2.1. Saving and Generating System HDL
2.2.4.3. Configuring Assignment and Constraint x
2.2.4.3.1. Adding Design Files 2.2.4.3.2. Pin Assignments 2.2.4.3.3. Configuration and Power Management Assignments
2.2.5. Building Software Design with Ashling* RiscFree* IDE for Altera® FPGAs x
2.2.5.1. Creating a Board Support Package 2.2.5.2. Creating an Application Project File 2.2.5.3. Importing Projects into Ashling* RiscFree* IDE for Altera® FPGAs 2.2.5.4. Building the Hello World Application
2.2.5.3. Importing Projects into Ashling* RiscFree* IDE for Altera® FPGAs x
2.2.5.3.1. Importing Nios® V Processor BSP Project 2.2.5.3.2. Importing Application Project
2.3. Simulating the Nios® V Processor System x
2.3.1. Preparing Hardware Design for Simulation 2.3.2. Preparing Software Design for Simulation 2.3.3. Checking Simulation Files 2.3.4. Running System Simulation
2.4. Programming the System x
2.4.1. Programming Hardware SOF File 2.4.2. Downloading the Software ELF File 2.4.3. Applying External Tool Configuration 2.4.4. Run Hello World Application
2.5. Debugging the System x
2.5.1. Software Debugging
2.5.1. Software Debugging x
2.5.1.1. Setting Initial Breakpoint 2.5.1.2. Starting the Debugger 2.5.1.3. View Global Variables 2.5.1.4. View Memory 2.5.1.5. Setting a Second Breakpoint 2.5.1.6. Control Debugger
3. Hello World on MAX® 10 FPGA 10M50 Evaluation Kit x
3.1. Hardware and Software Requirements 3.2. Generating the System 3.3. Simulating the Nios® V Processor System 3.4. Programming the System 3.5. Debugging the System
3.2. Generating the System x
3.2.1. Building Hardware Design in Platform Designer 3.2.2. Building Software Design with Ashling* RiscFree* IDE for Altera® FPGAs
3.2.1. Building Hardware Design in Platform Designer x
3.2.1.1. Creating a New Project 3.2.1.2. Creating a Platform Designer System 3.2.1.3. Configuring Assignment and Constraint 3.2.1.4. Compiling the Quartus® Prime Software Project
3.2.2. Building Software Design with Ashling* RiscFree* IDE for Altera® FPGAs x
3.2.2.1. Creating a Board Support Package 3.2.2.2. Creating an Application Project Files 3.2.2.3. Importing Projects into Ashling* RiscFree* IDE for Altera® FPGAs 3.2.2.4. Building the Hello World Application
3.2.2.3. Importing Projects into Ashling* RiscFree* IDE for Altera® FPGAs x
3.2.2.3.1. Importing Nios® V Processor BSP Project 3.2.2.3.2. Importing Application Project
3.3. Simulating the Nios® V Processor System x
3.3.1. Preparing Hardware Design for Simulation 3.3.2. Preparing Software Design for Simulation 3.3.3. Checking Simulation Files 3.3.4. Running System Simulation
3.4. Programming the System x
3.4.1. Programming Hardware SOF File 3.4.2. Downloading the Software ELF File 3.4.3. Applying External Tool Configuration 3.4.4. Run Hello World Application
3.5. Debugging the System x
3.5.1. Software Debugging
3.5.1. Software Debugging x
3.5.1.1. Setting Initial Breakpoint 3.5.1.2. Starting the Debugger 3.5.1.3. View Global Variables 3.5.1.4. View Memory 3.5.1.5. Setting a Second Breakpoint 3.5.1.6. Control Debugger
1. AN 985: Nios® V Processor Tutorial
2. Hello World on Agilex™ 7 FPGA F-Series Transceiver-SoC Development Kit
3. Hello World on MAX® 10 FPGA 10M50 Evaluation Kit
4. Document Revision History for the AN 985: Nios® V Processor Tutorial

2.5.1.6. Control Debugger

Using the two breakpoints, you can control the debugging process using the Debug bar.

Figure 97. Figure 152. Execution Control (Debug bar)
Table 5.  Table 9.  Description of Execution Control
Function Description
Resume Continues the debugging process until the next breakpoint, or until the end of the debugging process.
Suspend Halts the running code while debugging.
Terminate Terminates the debug session. You need to relaunch the debug session after terminated.
Disconnect

Disconnects the debug tool connected to the RiscFree* IDE.

Note: You are required to terminate the debug session before disconnecting the debug tool.
Step Into Steps into the next method call (entering it) at the currently executing line of code.
Step Over Steps over the next method call (without entering it) at the currently executing line of code. The method is still executed.
Step Return (Step Out) Returns from a method which has been stepped into (exiting it). The remainder of the code that was skipped by returning is still executed.
Instruction Stepping Mode Switches to instruction stepping mode.
Drop to Frame Pops the current stack frame and puts control back out to the calling method, resetting any local variables.
Use Step Filters Changes whether step filters should be used in the current Debug View.
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