Lattice Radiant Software

Best in Class, Easy to Use Design Software

Full Featured, Easy to Use Tool Suite - Lattice Radiant software offers all the best in class tools and features to help users develop their FPGA applications efficiently and effectively. Powerful yet intuitive tools provide fast design starts and precise implementation.

Predictable Design Convergence - Powerful optimization and analysis tool help achieve fast and predictable design convergence. Lattice Radiant software utilizes a unified design database, design constraints flow, and timing analysis throughout the flow to ensure consistent optimization and analysis with optimal results.

Unparalleled Ease of Use - To provide the best user experience, Lattice Radiant software brings the ease of use of an FPGA design software to a whole new level with a graphical user interface that is modular and wizard driven, and intuitively guides the user through the design flow that includes design creation, synthesis, constraint entry, design analysis, debugging, and programming.

Features

  • Easy design navigation and debugging with “One Click” execution
  • Powerful optimization tools that feature best in class algorithms to ensure quick timing closure
  • Precise analysis tools for design, timing, and power analysis
  • Complete closed-loop cross probing from physical to logical design implementation
  • IP packaging capability allows users and IP providers to package encrypted IP for distribution

Getting Started

  1. Download Software below - Windows / Linux
  2. Install: follow the installation guide, found in Documents section below.
  3. License: determine which license type you need, then request it on our licensing page via the button below.

Jump To

Award

The Electronics Industry Awards

Engineering Development/Design Tool of the Year

Base & Update Downloads

Windows OSWindows

The Lattice Radiant Software Base executable contains all of the design tools and features for you to use Lattice FPGAs from design entry to bitstream download. The supported Windows Operating System is Windows 10 64-bit or 11 64-bit.

Package Operating System Version Date Format Size
Lattice Radiant Software Windows 64-bit 2025.2 12/11/2025 ZIP 3.61 GB

Linux OSLinux

The Lattice Radiant Software Base executable contains all of the design tools and features for you to use Lattice FPGAs from design entry to bitstream download. The supported Linux Operating Systems are Red Hat Enterprise Linux  8.10 64-bit and Ubuntu 22.04 or 24.04 LTS 64-bit.

Package Operating System Version Date Format Size
Lattice Radiant Software Linux 64-bit 2025.2 12/11/2025 ZIP 5.76 GB

Software Downloads & Documentation

Quick Reference
Technical Resources
Information Resources
Downloads
TITLENUMBERVERSIONDATEFORMATSIZE
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High Reliability & Functional Safety for FPGAs with Synplify & Radiant
WP00361.03/25/2024PDF2.3 MB
Lattice Licensing User Guide for Linux
1.310/9/2025PDF2.8 MB
Lattice Licensing User Guide for Windows
1.310/9/2025PDF4.7 MB
Lattice Memory Mapped Interface (LMMI) and Lattice Interrupt Interface (LINTR) User Guide
FPGA-UG-020391.25/31/2022PDF1.7 MB
Lattice Radiant Software Design Flow Overview for Intel Quartus Users
FPGA-UG-021511.15/3/2022PDF2.3 MB
Lattice Radiant Software Design Flow Overview for Xilinx Vivado Users
FPGA-UG-021651.07/7/2022PDF2.6 MB
Migrating iCEcube2 iCE40 UltraPlus Designs to Lattice Radiant Software
2.211/12/2020PDF1.3 MB
TITLENUMBERVERSIONDATEFORMATSIZE
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Analyzing Designs Using Lattice Radiant Software Tools
FPGA-AN-020801.02/27/2024PDF843.3 KB
Avant-G/X PCIe Host DMA (Hardened DMA) Driver Software User Guide
FPGA-TN-024051.06/26/2025PDF1023 KB
Debugging with Reveal Usage Guidelines and Tips
FPGA-AN-020601.15/1/2024PDF1.2 MB
Global Set/Reset Usage for Nexus Platform
FPGA-AN-020621.09/4/2023PDF1.6 MB
Interactive Timing Analysis Using TCL in Lattice Radiant Design Software
FPGA-AN-020911.07/30/2024PDF434.7 KB
JESD204B Driver API Reference
FPGA-TN-024121.112/11/2025PDF494.3 KB
Lattice Radiant Constraints Propagation Engine
FPGA-AN-020971.02/12/2025PDF648.3 KB
Lattice Radiant Timing Constraints Methodology
FPGA-AN-020591.57/28/2024PDF1.9 MB
Migrating Designs from AMD CPLD/FPGA Devices to Lattice FPGA Devices
FPGA-AN-020811.18/27/2024PDF2.6 MB
Migrating Designs from AMD ISE Design Suite to Lattice Radiant Software
FPGA-AN-020871.03/17/2024PDF809.3 KB
Multi-Corner Timing Analysis for Lattice Nexus Devices
FPGA-AN-020631.03/31/2023PDF777.6 KB
Programming and Debugging Mixed Platform Devices
FPGA-AN-020611.03/28/2023PDF607.9 KB
QuestaSim Lattice Edition Usage Guidelines and Tips
FPGA-AN-020531.12/5/2025PDF1.7 MB
Scripting Lattice FPGA Build Flow
FPGA-AN-020731.010/31/2023PDF1.2 MB
Third-Party Simulation Tools Usage Guidelines and Tips
FPGA-AN-020841.17/22/2024PDF910.1 KB
Timing Closure Techniques for Mid-Size FPGAs
FPGA-AN-020741.14/24/2025PDF1.8 MB
Timing Constraints Methodology for Source-Synchronous Interfaces
FPGA-AN-020781.01/30/2024PDF870.9 KB
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Lattice Radiant Software 2025.2 Installation Guide for Linux Ubuntu
2025.212/11/2025PDF905.5 KB
Lattice Radiant Software 2025.2 Installation Guide for Windows
2025.212/11/2025PDF1.6 MB
TITLENUMBERVERSIONDATEFORMATSIZE
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iCE40 sysCLOCK PLL Design and Usage Guide
FPGA-TN-020521.38/26/2021PDF1.4 MB
iCE40 UltraPlus I2C and SPI Hardened IP Usage Guide - Radiant Software
FPGA-TN-020531.212/21/2021PDF1.3 MB
Lattice Licensing User Guide for Linux
1.310/9/2025PDF2.8 MB
Lattice Licensing User Guide for Windows
1.310/9/2025PDF4.7 MB
Lattice Memory Mapped Interface (LMMI) and Lattice Interrupt Interface (LINTR) User Guide
FPGA-UG-020391.25/31/2022PDF1.7 MB
Lattice Radiant 2.2.1 Software Guide for Lattice Diamond Users
2.2.13/31/2021PDF2.9 MB
Lattice Radiant Constraints Reference Guide
2025.212/11/2025PDF328.6 KB
Lattice Radiant Software 2025.2 Intellectual Property User Guide
2025.212/11/2025PDF544.3 KB
Lattice Radiant Software 2025.2 User Guide
2025.212/11/2025PDF14.5 MB
Lattice Radiant Software Design Flow Overview for Intel Quartus Users
FPGA-UG-021511.15/3/2022PDF2.3 MB
Lattice Radiant Software Design Flow Overview for Xilinx Vivado Users
FPGA-UG-021651.07/7/2022PDF2.6 MB
Lattice Radiant Software Guide for Diamond MachXO3LF to Radiant MachXO4 Device
2025.212/11/2025PDF1.1 MB
Lattice Radiant TCL Scripting User Guide
2025.212/11/2025PDF362.1 KB
Migrating iCEcube2 iCE40 UltraPlus Designs to Lattice Radiant Software
2.211/12/2020PDF1.3 MB
Programming Tools User Guide for Radiant Software 2025.2
2025.212/11/2025PDF4.1 MB
Reveal Troubleshooting Guide for Radiant Software
2025.212/11/2025PDF225.8 KB
Reveal User Guide for Radiant Software
2025.212/11/2025PDF5.2 MB
Synopsys Synplify Pro for Lattice User Guide
12/20/2024PDF9 MB
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Product Bulletin - IP End-of-Life (EOL) Notice 1H 2025
FPGA-PB-020231.011/24/2025PDF222.6 KB
Lattice Radiant 2025.2 Design Advisory
FPGA-DA-2512011.012/11/2025PDF119.8 KB
Lattice Radiant Software and IP Licensing Updates
FPGA-PB-020301.112/15/2025PDF306.2 KB
Product Bulletin PB240501 - Radiant Support for SED in Nexus Platform
PB2405011.06/4/2024PDF242.5 KB
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Radiant Product Brochure
IO-2641.02/27/2018PDF1.4 MB
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Lattice Radiant 2025.2 Release Notes
2025.212/11/2025PDF337.7 KB
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Lattice Power Calculator Tutorial
2025.212/11/2025PDF1.8 MB
Lattice Radiant Block Based Design Tutorial
2025.212/11/2025PDF1.6 MB
Lattice Radiant Post Synthesis Reveal Debug Flow Tutorial
2025.212/11/2025PDF507.1 KB
Lattice Radiant Software Tutorial with CrossLink-NX (LIFCL)
3.27/11/2022PDF6.3 MB
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High Reliability & Functional Safety for FPGAs with Synplify & Radiant
WP00361.03/25/2024PDF2.3 MB
IoT Sensor Connectivity and Processing with Ultra-Low Power, Small Form-Factor FPGAs
1.04/3/2018PDF3 MB
Rapid Prototype Work Flow with HDL Coder - 5G OFDM and Single Tone Modulation Use Case
WP00391.08/8/2024PDF1.8 MB
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Lattice Radiant Software 2025.2 Help
2025.212/11/2025PDF17.2 MB
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FlexNet Utility License Files for Linux v11.19
11.196/28/2024TAZ34 MB
FlexNet Utility License Files for Windows v11.20
11.196/28/2024ZIP101.1 MB
HSM Signing Encrypting Script for Nexus – Linux
Access this document via a Technical Support Request after signing in to the Lattice website. Complete the request form via this link, please click here.
6/28/2024WEB
Linux Installers MD5 Checksums 2025.2
2025.212/11/2025ZIP1.6 KB
Power Estimator for Radiant 2025.2 64-bit for Linux
2025.212/11/2025ZIP1.6 GB
Power Estimator for Radiant 2025.2 64-bit for Windows
2025.212/11/2025ZIP1.5 GB
Programmer Standalone 2025.2 64-bit for Linux
2025.212/11/2025ZIP176.6 MB
Programmer Standalone 2025.2 64-bit for Windows
2025.212/11/2025ZIP144.5 MB
Radiant 2025.2 64-bit for Linux
2025.212/11/2025ZIP5.8 GB
Radiant 2025.2 64-bit for Windows
2025.212/11/2025ZIP3.6 GB
Reveal Standalone 2025.2 64-bit for Linux
2025.212/11/2025ZIP181.2 MB
Reveal Standalone 2025.2 64-bit for Windows
2025.212/11/2025ZIP148 MB

*By clicking on the "Notify Me of Changes" button, you agree to receive notifications on changes to the document(s) you selected.

Radiant IP Modules Documentation

To view the full list of documents related to Propel IP Modules, please visit the Lattice IP Modules page.

Licensing

Lattice Design Tools require a license to utilize the software. Download our Licensing User Guide for Windows and Linux or Read Licensing FAQ for more information.

Notice: If you are upgrading to Radiant 2024.1 or later and generated your Radiant license prior to June 2024, please generate a new license to get access to QuestaSim Lattice Edition included in Radiant.

Radiant Software Free License

The Lattice Radiant software offers leading-edge design and implementation tools optimized for our low-power FPGA architectures. The free license enables users to design and evaluate the performance of all Radiant supported devices.

Request Node-locked License

Request Floating License

Radiant Software Subscription License

Design exploration made easy. The full subscription license enables users to design and optimize solutions for all Radiant supported devices, without resorting to workarounds. Implementations can be executed in parallel on multi-core machines to enable you to find the best solution faster.

Buy / Renew License

Software Evaluation License

Explore our powerful Software Tools crafted to enhance your productivity and enjoy the seamless integration and an intuitive interface that elevates your design process. Experience the complete suite of any of the Lattice Software Tools features for 60-days. Click Request Evaluation License to get started.

Done with the evaluation? Purchase the full subscription license in our Online Store or contact a local sales representative or distributor.

Device Support

Lattice Radiant Design Software



Device Support & Features Subscription License Free License
Lattice Avant (LAV-AT-E/G/X) Check Mark Evaluation Mode*
MachXO4 (LFMXO4) Check Mark Check Mark
MachXO5-NX (LFMXO5-25) Check Mark Check Mark
MachXO5-NX (LFMXO5-100T) Check Mark Evaluation Mode
MachXO5-NX (LFMXO5-35) Check Mark Check Mark
MachXO5-NX (LFMXO5-35T) Check Mark Evaluation Mode
MachXO5-NX (LFMXO5-65) Check Mark Check Mark
MachXO5-NX (LFMXO5-65T) Check Mark Evaluation Mode
MachXO5-NX (LFMXO5-15D) Contact Support
MachXO5-NX (LFMXO5-55TD) Contact Support
MachXO5-NX (LFMXO5-55TDQ) Contact Support
MachXO5-NX (LFMXO5-30TD) Contact Support
MachXO5-NX (LFMXO5-30TDQ) Contact Support
Certus-N2 (LN2-CT-ES) Check Mark Evaluation Mode
CertusPro-NX (LFCPNX) Check Mark Evaluation Mode
Certus-NX (LFD2NX) Check Mark Check Mark
CrossLink-NX (LIFCL) Check Mark Check Mark
CrossLinkU-NX (LIFCL-33U) Check Mark Evaluation Mode
Certus-NX-RT (UT24C) Check Mark Evaluation Mode
CertusPro-NX-RT (UT24CP) Check Mark Evaluation Mode
iCE40 UltraPlus (iCE40UP) Check Mark Check Mark
 
Third-Party Software
Siemens QuestaSim Lattice FPGA Edition Check Mark Check Mark
Synopsys Synplify Pro - Lattice Edition
Check Mark Check Mark
Operating System
Windows Windows 10
Windows 11
Linux

RHEL 8.10
Ubuntu 22.04 LTS
Ubuntu 24.04 LTS

Licensing
License Period 1 Year
License Type Node-Locked or Floating
Ordering Part Number LSC-SW-RADIANT-NL (Node-locked)
LSC-SW-RADIANT-FL (Floating)
LSC-SW-RADIANT-NL-R (Node-locked Renewal)
LSC-SW-RADIANT-FL-R (Floating Renewal)
LSC-SW-RADIANT-RT-NL (Node-locked)
LSC-SW-RADIANT-RT-FL (Floating)

  Buy / Renew License Request License

*Note: Device is available in device selector with design flow until Place and Route for Avant-E devices only.


Purchase/Renew Radiant License

The full Radiant license enables users to design and optimize solutions for all Radiant supported devices.

To purchase or renew a Software license, please go to the Online Store or contact a local sales representative or distributor.

If you have purchased a Software license and received a Software Serial Number, please go to our Subscription licensing form.

Questasim Lattice Edition Features

Feature Value Proposition Questa Lattice Edition
Fully Optimized Simulation User control over optimization for performance vs visibility trade-off Yes
OS Support Compute Environment Windows & Linux
Natively 64-bit Increased range of memory available for application enabling use of more complex simulation models. Yes
VHDL and Verilog Support VHDL-1993, VHDL-2008, Verilog, SystemVerilog Yes
Mixed Language Support Designs that contain VHDL, Verilog and SystemVerilog blocks Yes
SystemVerilog TB Support Support for SystemVerilog testbenches* Yes (Includes Assertions)
qrun Push-button compile and file management Yes
Interactive Debug Observe and control the execution of the simulation Yes
Advanced Visualizer Debug Helps to root-cause bugs faster Generates output for Visualizer use in Questasim Prime

* Does not support OVM/UVM or SystemVerilog Class Debug

Radiant Feature List

  • Integrated Design Environment and Source Editor – Easy design navigation and debugging with integrated tools for constraint editing, design analysis and floorplanning with an HDL source code editor with keyword highlighting support for VHDL, Verilog, SDC and Lattice constraint attributes
  • Process Toolbar & Message Console – Design flow process toolbar and common message console with message classification and filtering
  • Constraint Editors with Industry Standard Constraint Support – Integrated timing and design constraints, floorplanning and I/O planning tools with Synopsys Design Constraints (SDC)
  • IP Catalog with Industry Standard Encryption Support – Integrated interface to access the extensive on-line Lattice IP Catalog with available IEEE1735 Encryption
  • Multiple Implementations and Strategies – Design exploration with multiple implementations and optimization strategies
  • Design Cross Probing and On-Chip Debugging – Comprehensive, close-looped physical to logical design cross probing and signal-centric on-chip debug for real-time debug analysis with waveforms
  • Power Calculator – Accurate data driven graphical power calculation and estimation tool based on silicon performance data
  • Tcl Scripting – Flow automation and script control to streamline design operations
  • Simulation Wizard – Comprehensive guidance for simulation setup, execution, and analysis
  • Third-Party Tools – Siemens QuestaSim Lattice FPGA Edition, ModelSim® Lattice FPGA Edition and Synopsys Synplify Pro® for Lattice

Version History

Click here to see all Radiant Version History.

Videos

Available Videos
Video Title Time Size Abstract
What’s New in Lattice Radiant® 2025.2 1:37 76.0 MB Lattice Radiant 2025.2 focuses on improvement with verification cycle, design productivity and added value with subscription license bundled with IP.
Introduction to Lattice Radiant Software 8:32 47.6 MB Lattice Radiant Software Introductory Video featuring key easy design experience features.
Lattice Radiant Software Tool Flow - Part 1 14:43 55.9 MB Featuring the license software installation guide and technical support, creating new Radiant project and adding design input and source files, and how to customize an IP using the IP Catalog.
Lattice Radiant Software Tool Flow - Part 2 27:58 107.1 MB Featuring the use of Simulation Wizard for design simulation, steps on setting the timing and location assignments, how to process the design and the uses of debugging tools- Netlist Analyzer, Physical Designer, Cross Probing.
Lattice Radiant Software Tool Flow - Part 3 14:31 51.9 MB Featuring the steps on how to use the Power Calculator for analyzing power consumption, how to analyze the static timing through the Timing Analyzer and programming the FPGA using the Programmer, and the usage of Reveal Inserter for design debugging.
Setting up a Floating License Tutorial 5:43 25.4MB Instructional Video on how to setup a floating license on a server and how to setup environment variables on a client machine in order to access the server license.
Lattice Radiant Design Software Video Series -
-
The Lattice Radiant Design Software Video Series is a multi-part video series covering every aspect of FPGA design and implementation using Lattice Radiant Design Software. It is well suited for both experienced users wanting to learn all aspects of the tool or for new users wanting to get started quickly with the tool.

Radiant Video Series 1.1: Installation and Licensing

Introduction to downloading, licensing, and installing the Lattice Radiant Design Software

Length: 6:00 (Minutes)

Radiant Video Series 1.2: Project Environment

Introduction to the Radiant workspace for FPGA implementation

Length: 7:50 (Minutes)

Radiant Video Series 1.3: Project Strategies and Implementations

How to use Radiant project strategies and project implementations

Length: 13:17 (Minutes)

Radiant Video Series 2.1: Creating and Opening Projects

How to create new projects and open existing projects

Length: 8:28 (Minutes)

Radiant Video Series 2.2: Managing Project Files

Using the Radiant File List tab for design file management

Length: 7:15 (Minutes)

Radiant Video Series 2.3: IP Catalog

Using the IP Catalog in Radiant to download and install soft IP

Length: 8:23 (Minutes)

Radiant Video Series 2.4: Implementing IP

How to generate and configure soft IP modules and instantiate in a design

Length: 7:03 (Minutes)

Radiant Video Series 2.5: Using Source Templates

Using the Source Templates provided in Radiant to create a design file

Length: 5:27 (Minutes)

Radiant Video Series 3.1: Simulation Basics

How to set up a simulation for Radiant projects

Length: 4:45 (Minutes)

Radiant Video Series 3.2: ModelSim Environment

How to use the ModelSim Lattice Edition software included with Radiant

Length: 4:31 (Minutes)

Radiant Video Series 3.3: Simulation Wizard

How to use the Simulation Wizard to simplify simulation setup

Length: 8:42 (Minutes)

Radiant Video Series 4.1: Constraint Basics

Introduction to timing constraints in Radiant and the Timing Constraints Editor

Length: 6:24 (Minutes)

Radiant Video Series 4.2: Creating Timing Constraints

How to use the Timing Constraint Editor to create timing constraints for synthesis

Length: 8:34 (Minutes)

Radiant Video Series 4.3: Synthesis

How to run synthesis using the process toolbar and task detail view

Length: 6:00 (Minutes)

Radiant Video Series 4.4: Design & Timing Reports

Introduction to Radiant reports and understanding how to use them

Length: 5:38 (Minutes)

Radiant Video Series 4.5: Netlist Analyzer

Using the Netlist Analyzer to understand design results after synthesis and technology mapping

Length: 5:17 (Minutes)

Radiant Video Series 5.1: Creating Design Constraints

Introduction to Radiant Design Constraints and the Design Constraints Editor

Length: 6:34 (Minutes)

Radiant Video Series 5.2: Post-Synthesis Timing Constraints

How to create timing constraints after synthesis using the Timing Constraints Editor

Length: 6:43 (Minutes)

Radiant Video Series 5.3: Physical Designer

Using the Radiant Physical Designer to view and modify the FPGA implementation

Length: 11:55 (Minutes)

Radiant Video Series 5.4: Power Calculator

How to use the Radiant Power Calculator for static and dynamic power analysis

Length: 8:44 (Minutes)

Radiant Video Series 5.5: Timing Analyzer

How to analyze static timing performance of a design using the Radiant Timing Analyzer

Length: 10:18 (Minutes)

Radiant Video Series 5.6: Run Manager

How to use the Run Manager to launch multiple implementations through the project flow

Length: 8:08 (Minutes)

Radiant Video Series 5.7: ECO Editor

Using the Radiant ECO Editor to make changes to an existing FPGA implementation

Length: 5:53 (Minutes)

Radiant Video Series 6.1: Programming Basics

Introduction to the programming flow for Radiant supported FPGAs

Length: 7:39 (Minutes)

Radiant Video Series 6.2: Device Programming

Using the Radiant Programmer tool to program an FPGA device

Length: 7:13 (Minutes)

Radiant Video Series 6.3: Debug: Reveal Inserter

How to add debug cores to an FPGA implementation with Reveal Inserter

Length: 10:33 (Minutes)

Radiant Video Series 6.4: Debug: Reveal Analyzer and Controller

How to control and instrument debug probe points in the design with Reveal Controller and Analyzer

Length: 7:24 (Minutes)