FPGA AI Suite Handbook

ID 863373
Date 11/21/2025
Public
Document Table of Contents

2.6.3. Hostless DDR-Free Design Example

The FPGA AI Suite provides a design example to demonstrate hostless and DDR-free operation of the FPGA AI Suite IP. Graph filters, bias, and FPGA AI Suite IP configurations are stored in on-chip memory on the FPGA device instead of DDR memory on the board.

The DDR-free design example demonstrates how FPGA AI Suite supports the following features:

  • DDR-free operation
  • Hostless operation (that is, running on the devices without the FPGA AI Suite runtime)
  • Streaming of input features
  • Streaming of inference results

The DDR-Free design example is implemented with the following components:

  • FPGA AI Suite IP
  • Agilex™ 7 FPGA I-Series Development Kit ES2 (DK-DEV-AGI027RBES) 
  • Sample hardware and software systems that illustrate the use of these components

For more details about DDR-free operation, refer to Using FPGA AI Suite in Hostless DDR-Free Mode.

The design example build scripts in FPGA AI Suite Design Example Utility let you choose from a variety of architecture files and build your own bitstreams, provided that you have a license permitting bitstream generation.

This design is provided with the FPGA AI Suite as an example showing how to incorporate the FPGA AI Suite IP into a DDR-Free design. This design is not intended for unaltered use in production scenarios. Any potential production application that uses portions of this design example must be reviewed for both robustness and security.

The following sections in this document describe the steps to build and execute the design:

The related links that follow link to the parts of this document that describe design decisions and architectural details about the design.