Intel® Simics® Simulator for Intel® FPGAs: Intel Agilex® 5 E-Series Virtual Platform User Guide

ID 786901
Date 10/02/2023
Public

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Document Table of Contents

3.3.1. FPGA Fabric

Two components integrate the FPGA fabric model:

  • Peripheral subsystem
  • On-Chip memory example design

The following sections provide some additional details about these components:

Peripheral Subsystem

In this release, the peripheral subsystem only includes an FPGA fabric example design instance, which consists of an On-chip memory IP. This memory is connected to the HPS through the LWHS2F bridge. For more information about this model, refer to the next section, "On-Chip Memory Example Design".

On-Chip Memory Example Design

The On-Chip memory IP allows read/write operations from/to the HPS software connected through the H2F bridge.
  • An instance of the On-Chip memory is instantiated directly under the qsys_top component and is connected with the HPS through the hps2fpga bridge (example_design).
  • The second instance of the On-Chip memory is instantiated under the peripheral sub-system (also instantiated under the qsys_top component) and is connected with the HPS through the lwhps2fpga bridge (example_design_lw).

The mapping of the memory instances is defined as follows:

Example Design Name

Bridge

Size

Start Address

End Address

example_design

hps2fpga

1 MB

0x0040000000

0x00400FFFFF

example_design_lw

lwhps2fpga

1 MB

0x0020000000

0x00200FFFFF

The example design instances in the FPGA fabric receive a parameter named base_addr that defines an offset value that indicates the mapping of the instance, taking as reference the Start Address value defined in the previous table.

The objects corresponding to the example design are the following:

  • system.board.fpga.soc_inst.example_design
  • system.board.fpga.soc_inst.periph_subsys.example_design_lw