HDMI Stratix® 10 FPGA IP Design Example User Guide

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ID 683701
Date 4/09/2024
Public
Document Table of Contents
Document Table of Contents x
1. HDMI Intel® FPGA IP Design Example Quick Start Guide for Stratix® 10 Devices 2. HDMI 2.1 Design Example (Support FRL = 1) 3. HDMI 2.0 Design Example 4. HDCP Over HDMI 2.0/2.1 Design Example 5. HDMI Stratix® 10 FPGA IP Design Example User Guide Archives 6. Document Revision History for the HDMI Stratix® 10 FPGA IP Design Example User Guide
1. HDMI Intel® FPGA IP Design Example Quick Start Guide for Stratix® 10 Devices x
1.1. Directory Structure 1.2. Generating the Design 1.3. Hardware and Software Requirements 1.4. Simulating the Design 1.5. Compiling and Testing the Design 1.6. Design Limitation 1.7. HDMI Intel® FPGA IP Design Example Parameters
2. HDMI 2.1 Design Example (Support FRL = 1) x
2.1. HDMI 2.1 RX-TX Retransmit Design Block Diagram 2.2. Creating RX-Only or TX-Only Designs 2.3. Hardware and Software Requirements 2.4. Directory Structure 2.5. Design Components 2.6. Dynamic Range and Mastering (HDR) InfoFrame Insertion and Filtering 2.7. Design Software Flow 2.8. Running the Design in Different FRL Rates 2.9. Clocking Scheme 2.10. Interface Signals 2.11. Design RTL Parameters 2.12. Hardware Setup 2.13. Simulation Testbench 2.14. Design Limitations 2.15. Debugging Features
2.5. Design Components x
2.5.1. HDMI TX Components 2.5.2. HDMI RX Components 2.5.3. Top-Level Common Blocks
2.15. Debugging Features x
2.15.1. Software Debugging Message 2.15.2. SCDC Information from the Sink Connected to TX 2.15.3. Clock Frequency Measurement
3. HDMI 2.0 Design Example x
3.1. HDMI RX-TX Retransmit Design Block Diagram 3.2. Creating TX or RX Only Designs 3.3. Design Components 3.4. Dynamic Range and Mastering (HDR) InfoFrame Insertion and Filtering 3.5. Clocking Scheme 3.6. Interface Signals 3.7. Design RTL Parameters 3.8. Hardware Setup 3.9. Simulation Testbench 3.10. Upgrading Your Design
4. HDCP Over HDMI 2.0/2.1 Design Example x
4.1. High-bandwidth Digital Content Protection (HDCP) 4.2. Nios® V Processor Software Flow 4.3. Design Walkthrough 4.4. Protection of Encryption Key Embedded in FPGA Design 4.5. Security Considerations 4.6. Debug Guidelines
4.1. High-bandwidth Digital Content Protection (HDCP) x
4.1.1. HDCP Over HDMI Design Example Architecture
4.3. Design Walkthrough x
4.3.1. Setting Up the Hardware 4.3.2. Generating the Design 4.3.3. Including HDCP Production Keys 4.3.4. Compiling the Design 4.3.5. Viewing the Results
4.3.3. Including HDCP Production Keys x
4.3.3.1. Storing Plain HDCP Production Keys in the FPGA (Support HDCP Key Management = 0) 4.3.3.2. Storing Encrypted HDCP Production Keys in the External Flash Memory or EEPROM (Support HDCP Key Management = 1)
4.3.3.1. Storing Plain HDCP Production Keys in the FPGA (Support HDCP Key Management = 0) x
4.3.3.1.1. HDCP Key Mapping from DCP Key Files 4.3.3.1.2. hdcp1x_tx_kmem.v and hdcp1x_rx_kmem.v files 4.3.3.1.3. hdcp2x_rx_kmem.v file 4.3.3.1.4. hdcp2x_tx_kmem.v file
4.3.3.2. Storing Encrypted HDCP Production Keys in the External Flash Memory or EEPROM (Support HDCP Key Management = 1) x
4.3.3.2.1. Intel KEYENC 4.3.3.2.2. Key Programmer
4.3.5. Viewing the Results x
4.3.5.1. Push Buttons and LED Functions
4.6. Debug Guidelines x
4.6.1. HDCP Status Signals 4.6.2. Modifying HDCP Software Parameters 4.6.3. Frequently Asked Questions (FAQ)
1. HDMI Intel® FPGA IP Design Example Quick Start Guide for Stratix® 10 Devices
2. HDMI 2.1 Design Example (Support FRL = 1)
3. HDMI 2.0 Design Example
4. HDCP Over HDMI 2.0/2.1 Design Example
5. HDMI Stratix® 10 FPGA IP Design Example User Guide Archives
6. Document Revision History for the HDMI Stratix® 10 FPGA IP Design Example User Guide

2.2. Creating RX-Only or TX-Only Designs

For advanced users, you can use the HDMI 2.1 design to create a TX- or RX-only design.
Figure 7. Components Required for RX-Only or TX-Only Design

To use RX- or TX-only components, remove the irrelevant blocks from the design.

Table 7.  RX-Only and TX-Only Design Requirements
User Requirements Preserve Remove Add
HDMI RX only RX Top
  • TX Top
  • RX-TX Link
  • CPU Subsystem
  • Transceiver Arbiter
 –
HDMI TX only
  • TX Top
  • CPU Sub-System
  • RX Top
  • RX-TX Link
  • Transceiver Arbiter
 Video Pattern Generator

(custom module or generated from the Video and Image Processing (VIP) Suite)

Besides the RTL changes, you need to also edit the main.c script.

  • For HDMI TX-only designs, decouple the wait for the HDMI RX lock status by removing the following lines and replace with tx_xcvr_reconfig(tx_frl_rate);

    rx_hdmi_lock = READ_PIO(PIO_IN0_BASE, PIO_RX_LOCKED_OFFSET, PIO_RX_LOCKED_WIDTH);

    while (rx_hdmi_lock == 0) {

    if (check_hpd_isr()) { break; }

    // rx_vid_lock = READ_PIO(PIO_IN0_BASE, PIO_VID_LOCKED_OFFSET, PIO_VID_LOCKED_WIDTH);

    rx_hdmi_lock = READ_PIO(PIO_IN0_BASE, PIO_RX_LOCKED_OFFSET, PIO_RX_LOCKED_WIDTH);

    // Reconfig Tx after rx is locked

    if (rx_hdmi_lock == 1) {

    if (READ_PIO(PIO_IN0_BASE, PIO_LOOPBACK_MODE_OFFSET, PIO_LOOPBACK_MODE_WIDTH) == 1) {

    rx_frl_rate = READ_PIO(PIO_IN0_BASE, PIO_RX_FRL_RATE_OFFSET, PIO_RX_FRL_RATE_WIDTH);

    tx_xcvr_reconfig(rx_frl_rate);

    } else {

    tx_xcvr_reconfig(tx_frl_rate);

    } } }

  • For HDMI RX-only designs, keep only the following lines in the main.c script:

    REDRIVER_INIT();

    hdmi_rx_init();

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