The FPGA-to-HPS bridges design example excercises the memory mapped interfaces of the hard processor system (HPS) exposed to the FPGA fabric. The design performs memory tests by writing and reading the HPS memory using various ports of the HPS and measures the performance of the data movements.
The design is provided for the following development kits:
The design is compiled using the following tools:
- Intel® Quartus® Prime software v16.0
- Intel SoC FPGA Embedded Design Suite (EDS) v16.0
The design uses a pair of modular SGDMAs and a pseudorandom binary sequence (PRBS) pattern checker and generator to move data between the FPGA fabric and the HPS SDRAM controller and tests the integrity of the data. The design excercises the FPGA-to-HPS bridge to perform cacheable and non-cacheable accesses to SDRAM. The design also excercises the FPGA-to-SDRAM interfaces, which allow the FPGA to access the HPS SDRAM directly without passing data through the HPS L3 interconnect or memory protection unit (MPU) accelerator coherency port.
Hardware Design Specifications
- Arria 10 HPS
- 1GB of DDR4-SDRAM
- Direct memory access (DMA) subsystem
- PRBS Pattern Checker (custom intellectual property (IP) provided with this design)
- PRBS Pattern Generator (custom IP provided with this design)
Figure 1. Top-Level Block Diagram
Figure 2. DMA Sub-system Diagram
Using This Design Example
The use of this design is governed by, and subject to, the terms and conditions of the Hardware Reference Design License Agreement.
The .zip file contains all the necessary hardware and software files to reproduce the example, as well as a readme.txt file. The readme.txt file contains instructions for re-building the design.
Design Examples Disclaimer
These design examples may only be used within Intel FPGA devices and remain the property of Intel. They are being provided on an “as-is” basis and as an accommodation; therefore, all warranties, representations, or guarantees of any kind (whether express, implied, or statutory) including, without limitation, warranties of merchantability, non-infringement, or fitness for a particular purpose, are specifically disclaimed. Intel expressly does not recommend, suggest, or require that these examples be used in combination with any other product not provided by Intel.