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

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ID 709314
Date 6/06/2024
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Document Table of Contents
Document Table of Contents x
1. HDMI Intel® FPGA IP Design Example Quick Start Guide for Agilex™ 7 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 Agilex™ 7 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. Design Limitation (AXI/CV)
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 = OFF) 3.7.3. Clock Details
3.8. Interface Signals x
3.8.1. Platform Design System
3.9. Hardware Setup x
3.9.1. Supporting Additional Video Resolutions
1. HDMI Intel® FPGA IP Design Example Quick Start Guide for Agilex™ 7 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

3.6.7. Set TX Video Clock

Perform this step only if you are running the design with video frame buffer at the actual video clock. In this use case, a programmable oscillator supplies the video clock for HDMI TX with a frequency based on the following formula:

TX video clock = (actual pixel rate / pixels in parallel) * colour depth ratio

Table 26.  Color Depth Ratio

Color Depth

(Bit per Component)

 Color Depth Ratio
8 1.00
10 1.25
12 1.50
16 2.00

Note that the design is running at 8 pixels in parallel.

The design example uses the TX video clock with the following resolution, color depth, and video clock frequency configurations. Expand this list according to your application.

Note: Both design variants currently only support 8bpc resolution. To add support for deep color resolution, refer to chapter 3.9.1 Supporting Additional Video Resolutions.
Table 27.  TX Video Clock based on Resolution and Color Depth
Resolution

Color Depth

(bit per component)

Pixel Rate

(MHz)

TX Video Clock

(MHz)
720x480p60 8 27 3.375
10 4.21875
12 5.0625
16 6.75
1280x720p60 8 74.25 9.28125
10 11.6015625
12 13.921875
16 18.5625
1920x1080p60 8 148.5 18.5625
10 23.203125
12 27.84375
16 37.125
3840x2160p60 8 594 74.25
10 92.8125
12 111.375
16 148.5
7680x4320p60 8 1188 148.5
10 185.625
12 222.75
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