DisplayPort IP Design Example User Guide: Agilex™ 5 FPGAs

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ID 823560
Date 8/15/2025
Public
Document Table of Contents
Document Table of Contents x
1. DisplayPort IP Design Example Quick Start Guide 2. DisplayPort IP Design Examples 3. DisplayPort SST Parallel Loopback without PCR Design Example 4. DisplayPort SST Parallel Loopback with AXI4-S Video Interface Design Example 5. DisplayPort SST TX-Only Design Example 6. DisplayPort SST RX-Only Design Example 7. Document Revision History for the DisplayPort IP Design Example User Guide: Agilex™ 5 FPGAs
1. DisplayPort IP Design Example Quick Start Guide x
1.1. Directory Structure 1.2. Hardware and Software Requirements 1.3. Generating the Design 1.4. Simulating the Design 1.5. Compiling and Testing the Design 1.6. Regenerating the Nios V .elf File 1.7. DisplayPort IP Design Example Parameters
1.5. Compiling and Testing the Design x
1.5.1. Compiling and Testing the Design Using Agilex™ 5 E-Series 065B Premium Development Kit 1.5.2. Compiling and Testing the Design Using Agilex™ 5 E-Series 065B Modular Development Kit Connector with No FMC Mode 1.5.3. Compiling and Testing the Design Using Agilex™ 5 E-Series 065B Modular Development Kit Connecter with Bitec Rev 8 Daughter Card
2. DisplayPort IP Design Examples x
2.1. Design Components 2.2. DisplayPort IP Design Example Clock Domains 2.3. Interface Signals and Parameters 2.4. Simulation Testbench 2.5. DisplayPort Duplex or Dual Simplex Design Examples
2.5. DisplayPort Duplex or Dual Simplex Design Examples x
2.5.1. DisplayPort Duplex Designs 2.5.2. DisplayPort Dual-Simplex Designs
3. DisplayPort SST Parallel Loopback without PCR Design Example x
3.1. Features 3.2. Functional Description
4. DisplayPort SST Parallel Loopback with AXI4-S Video Interface Design Example x
4.1. Features 4.2. Functional Description
5. DisplayPort SST TX-Only Design Example x
5.1. DisplayPort SST TX-Only Features 5.2. DisplayPort SST TX-Only Functional Description
6. DisplayPort SST RX-Only Design Example x
6.1. DisplayPort SST RX-Only Features 6.2. DisplayPort SST RX-Only Functional Description
1. DisplayPort IP Design Example Quick Start Guide
2. DisplayPort IP Design Examples
3. DisplayPort SST Parallel Loopback without PCR Design Example
4. DisplayPort SST Parallel Loopback with AXI4-S Video Interface Design Example
5. DisplayPort SST TX-Only Design Example
6. DisplayPort SST RX-Only Design Example
7. Document Revision History for the DisplayPort IP Design Example User Guide: Agilex™ 5 FPGAs

1.4. Simulating the Design

The DisplayPort IP design example testbench simulates a serial loopback design from a TX instance to an RX instance. An internal video pattern generator module drives the DisplayPort TX instance and the RX instance video output connects to CRC checkers in the testbench.
Figure 4. Design Simulation Flow
Note: The testbench only supports 4 lanes of TX and 4 lanes of RX for simulation.
  1. Navigate to the simulation folder of your choice.
  2. Run the simulation script for the supported simulator. The script compiles and runs the testbench in the simulator.
  3. Analyze the results.
    A successful simulation ends with Source and Sink SRC comparison, as shown below: 
    # SINK CRC_R = ac9c, CRC_G = ac9c, CRC_B = ac9c,
# SOURCE CRC_R = ac9c, CRC_G = ac9c, CRC_B = ac9c,
# Pass: Test Completed
    Table 1.  Steps to Run Simulation
    Simulator Working Directory Instructions
    QuestaSim* /simulation/mentor
    In the command line, type 
    vsim -c -do mentor.do
    Riviera-PRO* /simulation/aldec

    In the command line, type

    vsim -c do aldec.do
    Xcelium* /simulation/xcelium
    In the command line, type 
    source xcelium.sh
    VCS* MX /simulation/synopsys/vcsmx
    In the command line, type 
    source vcsmx_sim.sh
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