Qsys System Design Tutorial

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ID 683378
Date 5/04/2015
Public
Document Table of Contents
Document Table of Contents x
1. Qsys System Design Tutorial
1. Qsys System Design Tutorial x
1.1. Software and Hardware Requirements 1.2. Download and Install the Tutorial Design Files 1.3. Open the Tutorial Project 1.4. Creating Qsys Systems 1.5. Assemble a Hierarchical System 1.6. Viewing the Memory Tester System in Qsys 1.7. Compiling and Downloading Software to a Development Board 1.8. Debugging Your Design 1.9. Verifying Hardware in System Console 1.10. Simulating Custom Components 1.11. View a Diagram of the Completed System
1.4. Creating Qsys Systems x
1.4.1. Create a Data Pattern Generator Qsys System 1.4.2. Create a Data Pattern Checker Qsys System
1.4.1. Create a Data Pattern Generator Qsys System x
1.4.1.1. Create a New Qsys System and Set up the Clock Source 1.4.1.2. Add a Pipeline Bridge 1.4.1.3. Add a Custom Pattern Generator 1.4.1.4. Add a PRBS Pattern Generator 1.4.1.5. Add a Two-to-One Streaming Multiplexer 1.4.1.6. Verify the Memory Address Map 1.4.1.7. Connect the Reset Signals 1.4.1.8. Save the System
1.4.2. Create a Data Pattern Checker Qsys System x
1.4.2.1. Create a New Qsys System and Set Up the Clock Soource 1.4.2.2. Add a Pipeline Bridge 1.4.2.3. Add a Custom Pattern Checker 1.4.2.4. Add the PRBS Pattern Checker 1.4.2.5. Add a One-to-Two Streaming Demultiplexer 1.4.2.6. Verify the Memory Address Map 1.4.2.7. Connect the Reset Signals 1.4.2.8. Save the System
1.5. Assemble a Hierarchical System x
1.5.1. Create the Hierarchical Memory Tester System 1.5.2. Complete the Top-Level System
1.5.1. Create the Hierarchical Memory Tester System x
1.5.1.1. Add the Pattern Generator 1.5.1.2. Add the Pattern Checker 1.5.1.3. Add Memory Master Components 1.5.1.4. Connect the Reset Signals 1.5.1.5. Verify the Memory Address Map 1.5.1.6. Save the System
1.5.1.3. Add Memory Master Components x
1.5.1.3.1. Add a Pattern Writer Component 1.5.1.3.2. Add a Pattern Reader Component 1.5.1.3.3. Add a RAM Test Controller
1.9. Verifying Hardware in System Console x
1.9.1. Open the Tutorial Project 1.9.2. Add the JTAG-to-Avalon Master Bridge 1.9.3. Debug with System Console
1.10. Simulating Custom Components x
1.10.1. Generate a Testbench System in Qsys 1.10.2. Run Simulation In the ModelSim-Altera Software
1.10.1. Generate a Testbench System in Qsys x
1.10.1.1. Create a New Qsys System for the Design Under Test 1.10.1.2. Export Design Under Test 1.10.1.3. Generate a Testbench System 1.10.1.4. Generate Testbench System's Simulation Models
1.10.2. Run Simulation In the ModelSim-Altera Software x
1.10.2.1. Set Up the Simulation Environment 1.10.2.2. Run the Simulation
1. Qsys System Design Tutorial

1.4.1.4. Add a PRBS Pattern Generator

The output of the PRBS pattern generator is a statically-defined PRBS pattern. You can specify the pattern length before the pattern repeats in the parameter editor. The pattern length is defined by 2^(data width) – 1.

For example, a 32-bit PRBS pattern generator repeats the pattern after it sends 4,294,967,295 elements. You set the width of the PRBS generator based on the (local) data width of the memory on your board.

The PRBS pattern generator has two interfaces; the csr and the st_pattern_output streaming source interface. The csr interface controls the behavior of the PRBS pattern generated. The st_pattern_output streaming source interface sends data to the pattern writer component.

  1. In the IP Catalog, expand Memory Test Microcores, and then double-click PRBS Pattern Generator.
  2. In the parameter editor, accept the default parameters, and then click Finish.
  3. Rename the instance to prbs_pattern_generator.
  4. Set the prbs_pattern_generator clock interface to clk_0.
  5. Connect the prbs_pattern_generator csr interface to the mm_bridge m0 interface.
  6. Assign the prbs_pattern_generator csr interface to a base address of 0x0420, which is a base address just higher than the end address of the custom_pattern_generator csr interface of 0x410.
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