Extend IOP16 minimal example

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Overview

Clone Sources

Alternately download ZIP files

  • Alternately you can download the two ZIP files from GitHub

IOP16 PortingGuide Download-Zip-Files.PNG

  • Unzipped into the same folder

IOP16 PortingGuide Unzipped-to-Folder.PNG

  • Rename the folders to remove the -main from the folder path

IOP16 PortingGuide Remove-main.PNG

Build Minimal Example

Start by building the minimal example in Quartus II

  • Open the Project file in Quartus II

IOP16 PortingGuide Open-Project-File.PNG

  • Entities in Quartus should look like

IOP16 PortingGuide Entities.PNG

  • This example does not cover porting to a different FPGA card
    • Will need to adjust I/O pin assignments if a different FPGA is used
  • May need to re-point to the ROM .MIF file since Quartus II sometimes "forgets"
    • Double clicking on the IOP_ROM file

IOP16 PortingGuide Selecting ROM 2.PNG

Steps

  • Copy baseline design
  • Select/add peripherals
  • Create new peripherals
  • Write assembly code

Baseline Design

  • Starts from IOP example
    • Similar to Arduino "Blink Sketch" and uses the resources
      • Timer Unit 0 1 second timer
      • On-board LED
    • The Timer unit could be removed if desired
      • Timer makes Blink easier
  • Copy the minimal design to a new folder

Select Peripherals

Create new peripherals

Write Assembly code

Test the build