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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	2025.1	6/26/2025	ZIP	3.57 GB

Linux

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 7.9 64-bit, 8.10 64-bit and Ubuntu 20.04 or 22.04 LTS 64-bit.

Package	Operating System	Version	Date	Format	Size
Lattice Radiant Software	Linux 64-bit	2025.1	6/26/2025	ZIP	4.1 GB

Software Downloads & Documentation

Quick Reference

Technical Resources

Product Bulletins

Information Resources

Downloads

Downloadable Software

		TITLE	NUMBER	VERSION	DATE	FORMAT	SIZE
a		Select All
a	a	Lattice Radiant Software Design Flow Overview for Intel Quartus Users	FPGA-UG-02151	1.1	5/3/2022	PDF	2.3 MB
a	a	High Reliability & Functional Safety for FPGAs with Synplify & Radiant	WP0036	1.0	3/25/2024	PDF	2.3 MB
a	a	Lattice Licensing User Guide for Linux		1.2	1/20/2025	PDF	2.4 MB
a	a	Lattice Licensing User Guide for Windows		1.2	1/20/2025	PDF	4.4 MB
a	a	Lattice Radiant Software Design Flow Overview for Xilinx Vivado Users	FPGA-UG-02165	1.0	7/7/2022	PDF	2.6 MB
a	a	Migrating iCEcube2 iCE40 UltraPlus Designs to Lattice Radiant Software		2.2	11/12/2020	PDF	1.3 MB
a	a	Lattice Memory Mapped Interface (LMMI) and Lattice Interrupt Interface (LINTR) User Guide	FPGA-UG-02039	1.2	5/31/2022	PDF	1.7 MB

		TITLE	NUMBER	VERSION	DATE	FORMAT	SIZE
a		Select All
a	a	Migrating Designs from AMD ISE Design Suite to Lattice Radiant Software	FPGA-AN-02087	1.0	3/17/2024	PDF	809.3 KB
a	a	Migrating Designs from AMD CPLD/FPGA Devices to Lattice FPGA Devices	FPGA-AN-02081	1.1	8/27/2024	PDF	2.6 MB
a	a	Timing Constraints Methodology for Source-Synchronous Interfaces	FPGA-AN-02078	1.0	1/30/2024	PDF	870.9 KB
a	a	Interactive Timing Analysis Using TCL in Lattice Radiant Design Software	FPGA-AN-02091	1.0	7/30/2024	PDF	434.7 KB
a	a	Programming and Debugging Mixed Platform Devices	FPGA-AN-02061	1.0	3/28/2023	PDF	607.9 KB
a	a	Lattice Radiant Timing Constraints Methodology	FPGA-AN-02059	1.5	7/28/2024	PDF	1.9 MB
a	a	PCIe Host Driver Software with Certus-Pro AXI MM DMA - Technical Note	FPGA-TN-02386	1.2	5/6/2025	PDF	1.3 MB
a	a	Third-Party Simulation Tools Usage Guidelines and Tips	FPGA-AN-02084	1.1	7/22/2024	PDF	910.1 KB
a	a	Timing Closure Techniques for Mid-Size FPGAs	FPGA-AN-02074	1.1	4/24/2025	PDF	1.8 MB
a	a	Lattice Radiant Constraints Propagation Engine	FPGA-AN-02097	1.0	2/12/2025	PDF	648.3 KB
a	a	Scripting Lattice FPGA Build Flow	FPGA-AN-02073	1.0	10/31/2023	PDF	1.2 MB
a	a	Debugging with Reveal Usage Guidelines and Tips	FPGA-AN-02060	1.1	5/1/2024	PDF	1.2 MB
a	a	Analyzing Designs Using Lattice Radiant Software Tools	FPGA-AN-02080	1.0	2/27/2024	PDF	843.3 KB
a	a	Global Set/Reset Usage for Nexus Platform	FPGA-AN-02062	1.0	9/4/2023	PDF	1.6 MB
a	a	Multi-Corner Timing Analysis for Lattice Nexus Devices	FPGA-AN-02063	1.0	3/31/2023	PDF	777.6 KB
a	a	QuestaSim Lattice Edition Usage Guidelines and Tips	FPGA-AN-02053	1.1	2/5/2025	PDF	1.7 MB
a	a	Avant-G/X PCIe Host DMA Driver Software User Guide	FPGA-TN-02405	1.0	6/26/2025	PDF	1023 KB
a	a	JESD204B Driver API Reference	FPGA-TN-02412	1.0	6/26/2025	PDF	573.3 KB

		TITLE	NUMBER	VERSION	DATE	FORMAT	SIZE
a		Select All
a	a	Lattice Radiant Software 2025.1 Installation Guide for Windows		2025.1	6/26/2025	PDF	1.4 MB
a	a	Lattice Radiant Software 2025.1 Installation Guide for Linux Ubuntu		2025.1	6/26/2025	PDF	751.6 KB

		TITLE	NUMBER	VERSION	DATE	FORMAT	SIZE
a		Select All
a	a	Lattice Radiant Software Design Flow Overview for Intel Quartus Users	FPGA-UG-02151	1.1	5/3/2022	PDF	2.3 MB
a	a	Lattice Licensing User Guide for Linux		1.2	1/20/2025	PDF	2.4 MB
a	a	Lattice Licensing User Guide for Windows		1.2	1/20/2025	PDF	4.4 MB
a	a	Lattice Radiant Software Design Flow Overview for Xilinx Vivado Users	FPGA-UG-02165	1.0	7/7/2022	PDF	2.6 MB
a	a	Migrating iCEcube2 iCE40 UltraPlus Designs to Lattice Radiant Software		2.2	11/12/2020	PDF	1.3 MB
a	a	Lattice Radiant 2.2.1 Software Guide for Lattice Diamond Users		2.2.1	3/31/2021	PDF	2.9 MB
a	a	Reveal Troubleshooting Guide for Lattice Radiant Software		2022.1	12/5/2022	PDF	212.3 KB
a	a	Avant 1D Filter Module User Guide - Lattice Radiant Software	FPGA-IPUG-02179	1.1	12/5/2023	PDF	543.7 KB
a	a	Synopsys Synplify Pro for Lattice User Guide			12/20/2024	PDF	9 MB
a	a	Lattice Memory Mapped Interface (LMMI) and Lattice Interrupt Interface (LINTR) User Guide	FPGA-UG-02039	1.2	5/31/2022	PDF	1.7 MB
a	a	iCE40 UltraPlus I2C and SPI Hardened IP Usage Guide - Radiant Software	FPGA-TN-02053	1.2	12/21/2021	PDF	1.3 MB
a	a	iCE40 sysCLOCK PLL Design and Usage Guide	FPGA-TN-02052	1.3	8/26/2021	PDF	1.4 MB
a	a	Lattice Radiant Software 2025.1 User Guide		2025.1	6/26/2025	PDF	12.7 MB
a	a	Programming Tools User Guide for Radiant Software 2025.1		2025.1	6/26/2025	PDF	3.9 MB
a	a	DDR Memory Module User Guide - Lattice Radiant Software	FPGA-IPUG-02060	1.5	6/26/2025	PDF	554.1 KB
a	a	Reveal User Guide for Radiant Software		2025.1	6/26/2025	PDF	5.2 MB
a	a	Lattice Radiant Software 2025.1 Intellectual Property User Guide		2025.1	6/26/2025	PDF	368.1 KB
a	a	Lattice Avant SDR Module User Guide - Lattice Radiant Software	FPGA-IPUG-02187	1.3	12/20/2024	PDF	499.3 KB
a	a	LPDDR4 Memory Interface Module User Guide - Lattice Radiant Software	FPGA-IPUG-02154	1.1	6/23/2021	PDF	2 MB
a	a	I/O Interface IP Core - User Guide	FPGA-IPUG-02292	1.0	6/26/2025	PDF	1.1 MB
a	a	Nexus DDR 7:1 Module User Guide - Lattice Radiant Software	FPGA-IPUG-02058	1.8	6/28/2024	PDF	573.3 KB
a	a	ADC Core Module User Guide - Lattice Radiant Software	FPGA-IPUG-02168	1.5	2/17/2025	PDF	860.8 KB
a	a	DDR Memory PHY Module User Guide - Lattice Radiant Software	FPGA-IPUG-02195	1.3	4/26/2025	PDF	1.6 MB
a	a	Adder Tree Module - Lattice Radiant Software	FPGA-IPUG-02087	1.4	12/15/2021	PDF	880.1 KB
a	a	Distributed Memory Module User Guide - Lattice Radiant Software	FPGA-IPUG-02191	1.1	12/5/2023	PDF	874.2 KB
a	a	Always ON Module User Guide - Lattice Radiant Software	FPGA-IPUG-02216	1.0	9/26/2023	PDF	554.6 KB
a	a	FIFO Memory Modules User Guide - Lattice Radiant Software	FPGA-IPUG-02182	1.4	3/17/2024	PDF	1.9 MB
a	a	SEDC Module - Lattice Radiant Software	FPGA-IPUG-02066	1.2	6/23/2021	PDF	908.3 KB
a	a	I2CFIFO Module User Guide - Lattice Radiant Software	FPGA-IPUG-02064	1.5	7/21/2024	PDF	963.5 KB
a	a	Arithmetic Module User Guide - Lattice Radiant Software	FPGA-IPUG-02032	2.5	12/5/2023	PDF	1.7 MB
a	a	Avant DDR 7:1 Module User Guide - Lattice Radiant Software	FPGA-IPUG-02189	1.4	2/17/2025	PDF	838.8 KB
a	a	Avant Adder Tree Module User Guide - Lattice Radiant Software	FPGA-IPUG-02185	1.2	12/5/2023	PDF	454.8 KB
a	a	MPCS Module User Guide - Lattice Radiant Software	FPGA-IPUG-02118	1.8	6/26/2025	PDF	1.4 MB
a	a	Avant DDR Generic Module User Guide - Lattice Radiant Software	FPGA-IPUG-02188	1.2	7/7/2024	PDF	768.5 KB
a	a	2.5G Ethernet MAC + PHY IP Core - User Guide	FPGA-IPUG-02293	1.0	6/26/2025	PDF	3.6 MB
a	a	1D Filter IP Module User Guide - Lattice Radiant Software	FPGA-IPUG-02099	1.5	5/31/2022	PDF	456.7 KB
a	a	ADC Sequencer Module User Guide - Lattice Radiant Software	FPGA-IPUG-02062	1.8	3/3/2023	PDF	1.9 MB
a	a	Nexus MIPI D-PHY Module User Guide - Lattice Radiant Software	FPGA-IPUG-02061	1.8	4/1/2024	PDF	1 MB
a	a	Nexus OSC Module User Guide - Lattice Radiant Software	FPGA-IPUG-02065	1.9	6/26/2025	PDF	503.4 KB
a	a	PLL Module User Guide - Lattice Radiant Software	FPGA-IPUG-02063	2.0	6/26/2025	PDF	1.6 MB
a	a	SDR Module User Guide - Lattice Radiant Software	FPGA-IPUG-02059	1.6	8/25/2024	PDF	587.3 KB
a	a	Lattice Radiant TCL Scripting User Guide		2025.1	6/26/2025	PDF	357.3 KB
a	a	Avant DSP Arithmetic Module User Guide - Lattice Radiant Software	FPGA-IPUG-02183	1.1	2/7/2024	PDF	1.7 MB
a	a	Barrel Shifter Module User Guide - Lattice Radiant Software	FPGA-IPUG-02088	1.4	1/3/2024	PDF	401.5 KB
a	a	Nexus CRE Module User Guide - Lattice Radiant Software	FPGA-IPUG-02067	1.5	6/26/2025	PDF	1.2 MB
a	a	DDR Generic Module User Guide - Lattice Radiant Software	FPGA-IPUG-02057	1.9	6/28/2024	PDF	776.2 KB
a	a	EBR Memory Modules - Lattice Radiant Software	FPGA-IPUG-02190	1.5	3/11/2025	PDF	2.7 MB
a	a	FFT Butterfly Module User Guide - Lattice Radiant Software	FPGA-IPUG-02119	1.3	12/5/2023	PDF	681.4 KB
a	a	DSP Arithmetic Module User Guide - Lattice Radiant Software	FPGA-IPUG-02050	1.5	12/5/2023	PDF	2.2 MB
a	a	Avant MIPI DPHY Module User Guide - Lattice Radiant Software	FPGA-IPUG-02193	1.1	1/8/2024	PDF	508.3 KB
a	a	Avant OSC Module User Guide - Lattice Radiant Software	FPGA-IPUG-02184	1.2	1/8/2024	PDF	467 KB
a	a	Avant-G/X SEDC Module User Guide - Lattice Radiant Software	FPGA-IPUG-02232	1.2	1/6/2025	PDF	533.1 KB
a	a	Avant PLL Module User Guide - Lattice Radiant Software	FPGA-IPUG-02220	1.4	1/12/2025	PDF	506.4 KB

		TITLE	NUMBER	VERSION	DATE	FORMAT	SIZE
a		Select All
a	a	Product Bulletin PB240501 - Radiant Support for SED in Nexus Platform	PB240501	1.0	6/4/2024	PDF	242.5 KB

		TITLE	NUMBER	VERSION	DATE	FORMAT	SIZE
a		Select All
a	a	Radiant Product Brochure	IO-264	1.0	2/27/2018	PDF	1.4 MB

		TITLE	NUMBER	VERSION	DATE	FORMAT	SIZE
a		Select All
a	a	Lattice Radiant 2025.1 Release Notes		2025.1	6/26/2025	PDF	276.1 KB
a	a	I/O Interface IP Core - Release Notes	FPGA-RN-02084	1.0	6/26/2025	PDF	177.1 KB

		TITLE	NUMBER	VERSION	DATE	FORMAT	SIZE
a		Select All
a	a	Lattice Radiant Software Tutorial with CrossLink-NX (LIFCL)		3.2	7/11/2022	PDF	6.3 MB
a	a	Lattice Radiant Block Based Design Tutorial		2025.1	6/26/2025	PDF	1.4 MB
a	a	Lattice Power Calculator Tutorial		2025.1	6/26/2025	PDF	1.7 MB
a	a	Lattice Radiant Post Synthesis Reveal Debug Flow Tutorial		2025.1	6/26/2025	PDF	411.2 KB

		TITLE	NUMBER	VERSION	DATE	FORMAT	SIZE
a		Select All
a	a	High Reliability & Functional Safety for FPGAs with Synplify & Radiant	WP0036	1.0	3/25/2024	PDF	2.3 MB
a	a	Rapid Prototype Work Flow with HDL Coder - 5G OFDM and Single Tone Modulation Use Case	WP0039	1.0	8/8/2024	PDF	1.8 MB
a	a	IoT Sensor Connectivity and Processing with Ultra-Low Power, Small Form-Factor FPGAs		1.0	4/3/2018	PDF	3 MB

		TITLE	NUMBER	VERSION	DATE	FORMAT	SIZE
a		Select All
a	a	Lattice Radiant Software 2025.1 Help		2025.1	6/26/2025	PDF	26.4 MB

		TITLE	NUMBER	VERSION	DATE	FORMAT	SIZE
a		Select All
a		FlexNet Utility License Files for Windows v11.19		11.19	6/28/2024	ZIP	101.1 MB
a		FlexNet Utility License Files for Linux v11.19		11.19	6/28/2024	TAZ	34 MB
a		HSM Signing Encrypting Script for Nexus – Linux This document would be provided through Technical Support Request after sign-in to Lattice web site. Please refer to Answer Database FAQ 6876 for detail instruction			6/28/2024	WEB
a		HSM Signing Encrypting Script for Nexus – Windows This document would be provided through Technical Support Request after sign-in to Lattice web site. Please refer to Answer Database FAQ 6876 for detail instruction			6/28/2024	WEB
a		Power Estimator for Radiant 2025.1 64-bit for Linux		2025.1	6/26/2025	ZIP	1.6 GB
a		Power Estimator for Radiant 2025.1 64-bit for Windows		2025.1	6/26/2025	ZIP	1.6 GB
a		Programmer Standalone 2025.1 64-bit for Linux		2025.1	6/26/2025	ZIP	179.7 MB
a		Programmer Standalone 2025.1 64-bit for Windows		2025.1	6/26/2025	ZIP	146.9 MB
a		Reveal Standalone 2025.1 64-bit for Linux		2025.1	6/26/2025	ZIP	184.1 MB
a		Radiant 2025.1 64-bit for Windows		2025.1	6/26/2025	ZIP	3.4 GB
a		Radiant 2025.1 64-bit for Linux		2025.1	6/26/2025	ZIP	4.1 GB
a		Reveal Standalone 2025.1 64-bit for Windows		2025.1	6/26/2025	ZIP	150.1 MB
a	a	Linux Installers MD5 Checksums 2025.1		2025.1	6/26/2025	ZIP	1.2 KB

*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)		Evaluation Mode*
MachXO5-NX (LFMXO5-25)
MachXO5-NX (LFMXO5-100T)		Evaluation Mode
MachXO5-NX (LFMXO5-35)
MachXO5-NX (LFMXO5-35T)		Evaluation Mode
MachXO5-NX (LFMXO5-65)
MachXO5-NX (LFMXO5-65T)		Evaluation Mode
MachXO5-NX (LFMXO5-15D)		Evaluation Mode
Certus-N2 (LN2-CT-ES)		Evaluation Mode
CertusPro-NX (LFCPNX)		Evaluation Mode
Certus-NX (LFD2NX)
CrossLink-NX (LIFCL)
CrossLinkU-NX (LIFCL-33U)		Evaluation Mode
Certus-NX-RT (UT24C)		Evaluation Mode
CertusPro-NX-RT (UT24CP)		Evaluation Mode
iCE40 UltraPlus (iCE40UP)

Third-Party Software
Siemens QuestaSim Lattice FPGA Edition
Siemens ModelSim Lattice FPGA Edition
Synopsys Synplify Pro - Lattice Edition
Operating System
Windows	Windows 10 Windows 11
Linux	RHEL 7.9 RHEL 8.10 Ubuntu 20.04 LTS Ubuntu 22.04 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.

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
Introduction to Lattice Radiant Software	8:32	47.6 MB	Lattice Radiant Software Introductory Video featuring key easy design experience features.
What’s New in Lattice Radiant™ 2025.1	1:43	103 MB	Lattice Radiant 2025.1 focuses on improvement in debugging, ease of use and designer productivity.
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.

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