F-Tile HDMI Intel® FPGA IP Design Example User Guide

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ID 709314
Date 8/05/2022
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Document Table of Contents
Document Table of Contents x
1. HDMI Intel® FPGA IP Design Example Quick Start Guide for Intel® Agilex™ F-tile Devices 2. HDMI 2.1 Design Example (Support FRL = 1, Enable Active Video Protocol = None) 3. HDMI 2.1 Design Example with AXI4-stream Interface Enabled (Support FRL =1, Enable Active Video Protocol = AXIS-VVP Full) 4. Document Revision History for the F-Tile HDMI Intel® FPGA IP Design Example User Guide
1. HDMI Intel® FPGA IP Design Example Quick Start Guide for Intel® Agilex™ F-tile Devices x
1.1. Directory Structure 1.2. Generating the Design 1.3. Simulating the Design 1.4. Compiling and Testing the Design
2. HDMI 2.1 Design Example (Support FRL = 1, Enable Active Video Protocol = None) x
2.1. Design Features 2.2. Hardware and Software Requirements 2.3. HDMI 2.1 RX-TX Retransmit Design Block Diagram 2.4. Design Parameters 2.5. Design Components 2.6. Design Software Flow 2.7. Clocking Scheme 2.8. Interface Signals 2.9. Hardware Setup 2.10. Simulation Testbench 2.11. Debugging Features
2.3. HDMI 2.1 RX-TX Retransmit Design Block Diagram x
2.3.1. Creating RX-Only or TX-Only Designs
2.4. Design Parameters x
2.4.1. IP Parameters 2.4.2. HDMI Intel® FPGA IP Design Example Parameters
2.5. Design Components x
2.5.1. HDMI TX Components 2.5.2. HDMI RX Components 2.5.3. Top-Level Common Blocks
2.5.1. HDMI TX Components x
2.5.1.1. TX PHY Adapter
2.5.1.1. TX PHY Adapter x
2.5.1.1.1. FRL and TMDS
2.5.2. HDMI RX Components x
2.5.2.1. RX PHY Adapter
2.11. Debugging Features x
2.11.1. Software Debug Message 2.11.2. SCDC Information from Sink Connected to TX 2.11.3. Clock Frequency Measurement
3. HDMI 2.1 Design Example with AXI4-stream Interface Enabled (Support FRL =1, Enable Active Video Protocol = AXIS-VVP Full) x
3.1. Design Features 3.2. Hardware and Software Requirements 3.3. HDMI 2.1 RX-TX Retransmit Design Block Diagrams 3.4. Design Parameters 3.5. Design Components 3.6. Design Software Flow 3.7. Clocking Scheme 3.8. Interface Signals 3.9. Hardware Setup 3.10. Debugging Features
3.3. HDMI 2.1 RX-TX Retransmit Design Block Diagrams x
3.3.1. HDMI 2.1 RX-TX Direct Retransmit Design Block Diagram (Without Video Frame Buffer) 3.3.2. HDMI 2.1 RX-TX Retransmit Design Block Diagram (With Video Frame Buffer)
3.4. Design Parameters x
3.4.1. HDMI RX Direction 3.4.2. HDMI TX Direction
3.6. Design Software Flow x
3.6.1. Configure Redriver Setting 3.6.2. Initialize TX Path 3.6.3. Initialize RX Path 3.6.4. Initialize HDMI TX Register 3.6.5. Wait for RX Path Ready 3.6.6. TX Reconfiguration and Link Training 3.6.7. Set TX Video Clock 3.6.8. Set AXI2CV Configuration 3.6.9. HDMI TX Transmit Video
3.7. Clocking Scheme x
3.7.1. HDMI 2.1 RX-TX Retransmit Design without Video Frame Buffer (Enable Active Video Protocol = AXIS-VVP Full, Video In and Out Use the Same Clock = ON) 3.7.2. HDMI 2.1 RX-TX Retransmit Design with Video Frame Buffer(Enable Active Video Protocol = AXIS-VVP Full, Video In and Out Use the Same = ON) 3.7.3. Clock Details
3.8. Interface Signals x
3.8.1. Platform Design System 3.8.2. HDMI RX PHY 3.8.3. HDMI TX PHY 3.8.4. RX-TX Link
3.9. Hardware Setup x
3.9.1. Support additional video resolutions
1. HDMI Intel® FPGA IP Design Example Quick Start Guide for Intel® Agilex™ F-tile Devices
2. HDMI 2.1 Design Example (Support FRL = 1, Enable Active Video Protocol = None)
3. HDMI 2.1 Design Example with AXI4-stream Interface Enabled (Support FRL =1, Enable Active Video Protocol = AXIS-VVP Full)
4. Document Revision History for the F-Tile HDMI Intel® FPGA IP Design Example User Guide

2.6. Design Software Flow

In the design main software flow, the Nios® II processor configures the TI redriver setting and initializes the TX and RX paths upon power-up.
Figure 17. Software Flow in main.c Script
The software executes a while loop to monitor sink and source changes, and to react to the changes. The software may trigger TX reconfiguration, TX link training and start transmitting video.
Note: Refer to the following figures for the detailed flow:
  1. Initialize TX Path: Figure 18.
  2. Initialize RX Path: Figure 19.
  3. TX Reconfiguration and Link Training: Figure 20.
Figure 18. Initialize TX Path Flowchart
Figure 19. Initialize RX Path Flowchart
Figure 20. TX Reconfiguration and Link Training Flowchart
Note: Refer to Figure 21 for more detail about Perform TX Link Training.
Figure 21. Perform TX Link Training Flowchart
Note: Refer to Figure 20 for continuation of Perform TX Link Training.
Note: Refer to Figure 21 for more detail about Perform LTS: 3 Process at Specific FRL Rate.
Figure 22. Perform LTS:3 Process at Specific FRL Rate Flowchart
Note: Refer to Figure 21 for continuation of Perform LTS: 3 Process at Specific FRL Rate.
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