JTAG Embedded Programming using RPi Reference Design

Raspberry Pi (RPi) JTAG Interface with Lattice Device

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This demo interfaces the Raspberry Pi general purpose input output (GPIO) pins to the JTAG embedded source code in the Lattice Radiant™ and Diamond™ software directories. Refer to Source Code Directory for the location of the embedded programming source code. This demo is applicable to Lattice devices including MachXO2™, MachXO3™, and Nexus™-based FPGA devices.

Features

  • Utilizes Raspberry Pi as a programmer
  • Configure program data for Lattice devices
  • Supports updating configuration and user data on Lattice devices
  • Uses the JTAG interface of Lattice devices to program configuration and user data
  • Serves as a guide for porting embedded programming source code to other processors

Block Diagram

JTAG block diagramExpand Image
CrossLinkU-NX USB3 Vision Reference Design Block Diagram for CrossLinkU-NX

Documentation

Technical Resources
TITLE NUMBER VERSION DATE FORMAT SIZE
Select All
JTAG Embedded Programming using RPi Reference Design - User Guide
FPGA-RD-02317 1.0 8/6/2025 PDF 1.3 MB
JTAG Embedded Programming using RPi Reference Design - Source Code
8/6/2025 ZIP 210.1 KB

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