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Mi-V RISC-V Soft CPUs

Mi‑V RISC‑V Soft CPU Ecosystem for FPGA-Based Embedded Systems

We offer a comprehensive ecosystem of software tool chains and IP cores for FPGA designs. Mi-V RV32 RISC-V soft CPUs are available for PolarFire^® SoC, PolarFire^®, RTG4™, SmartFusion^® 2 and IGLOO^® 2 FPGAs with complete design support through Libero^® SoC Design Suite. The Eclipse-based SoftConsole IDE contains a development environment, a Renode emulation platform, GCC compiler and debugger needed for C/C++ embedded firmware development.

The Libero SoC Design Suite and SoftConsole development environments provide all the required tools to integrate Mi-V soft CPUs in our FPGAs and develop, test and debug embedded firmware.

Portfolio

RISC-V Soft CPU	Mi-V RV32	Mi-V RV32IMAF_L1_AHB	Mi-V RV32IMA_L1_AHB	Mi-V RV32IMA_L1_AXI
LEs	4k–20k	26k	10k	10k
CoreMark^® Score	0.18–2.48	2.01	2.01	2.01
Cache Size	1 KB I$	2 KB I$, 8 KB D$	2 KB I$, 8 KB D$	2 KB I$, 8 KB D$
Tightly Coupled Memory (TCM)	Yes, Configurable Depth to 256 KB	N/A	N/A	N/A
Compressed	Optional	N/A	N/A	N/A
Multiply/Divide	Optional: MACC, Pipelined MACC or 32-Cycle Fabric	Yes	Yes	Yes
Atomics	N/A	Yes	Yes	Yes
Trace	Optional**	N/A	N/A	N/A
Floating Point	Optional Single-Precision	Single-Precision	N/A	N/A
Interface(s)	APB3/AHB/AXI	AHB	AHB	AXI
Debug	Optional	Yes	Yes	Yes
ECC	Optional	Optional	Optional	N/A
Availability	Now*	Now	Now	Now

*The Mi-V RV32 is recommended for all new designs

**Raw Trace requires additional Trace Encoder IP

Get Started:

Step 1: Download Latest Tools

Libero SoC Design Suite : Libero SoC Design Suite is a comprehensive tool for designing with our FPGAs and SoCs.

SoftConsole: SoftConsole is a free software development environment for embedded firmware development.

Step 2: Choose a Target Platform

PolarFire Evaluation Kit
PolarFire Splash Kit
RTG4™ FPGA Development Kit
Mi-V Creative Board
Renode

PolarFire Evaluation Kit

The PolarFire FPGA Evaluation kit is a full-featured kit that evaluates high-speed transceivers, 10 GbE, IEEE^® 1588, JESD204B, SyncE, CPRI and more. The kit includes HPC FMC, PCIe^®, dual GbE, SFP+ and USB.

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Step 3: View Compatible Reference Material

Reference Material	Description
AN4997: How to Build a Mi-V Soft CPU Subsystem	A complete user guide to build a basic Mi-V CPU subsystem and execute a first embedded application
Mi-V RV32 User Guide Mi-V RV32IMA_L1_AHB User Guide Mi-V RV32IMA_L1_AXI User Guide Mi-V RV32IMAF_L1_AHB User Guide	User guide for Mi-V soft CPUs
Mi-V RV32 Migration Guide	A guide to aid migration from the Mi-V RV32IMA(F) range of soft CPU cores to the latest high-configurability Mi-V RV32 soft CPU core
AN4660: Application Note (Previously AC466) AN4660: Design Files (Previously AC466)	A guide to implement auto updates and in-application programming using a Mi-V soft CPU
AN4663: Demo Guide (Previously DG0798) AN4663: Design Files (Previously DG0798)	A guide to access the PolarFire^® FPGA system services using a Mi-V soft CPU
AN4623: Demo Guide (Previously DG0799) AN4623: Design Files (Previously DG0799)	A guide to run a 1G Ethernet loopback design using IOD CDR, CoreTSE and a Mi-V soft CPU
AN4664: Demo Guide (Previously DG0802) AN4664: Design Files (Previously DG0802)	A guide to implement, control and communicate using a PCIe^® root port using a Mi-V soft CPU
RISC-V ISA Specification	RISC-V specification documentation
Target: MPF300-EVAL-KIT	Complete kit information including ordering, documentation, support and more

PolarFire Splash Kit

The PolarFire Splash Kit is a general-purpose kit that offers a platform for evaluation and development. The kit includes ports for GbE, PCIe, USB and LPC FMC.

Buy

Step 3: View Compatible Reference Material

Reference Material	Description
Mi-V RV32 User Guide Mi-V RV32IMA_L1_AHB User Guide Mi-V RV32IMA_L1_AXI User Guide Mi-V RV32IMAF_L1_AHB User Guide	User guide for Mi-V soft CPUs
AN4660: Application Note (Previously AC466) AN4660: Design Files (Previously AC466)	A guide to implement auto updates and in-application programming using a Mi-V soft CPU
AN4663: Demo Guide (Previously DG0798) AN4663: Design Files (Previously DG0798)	A guide to access the PolarFire^® FPGA system services using a Mi-V soft CPU
RISC-V ISA Specification RISC-V ISA Privileged Specification RISC-V Debug Specification	RISC-V specification documentation
Target: MPF300-SPLASH-KIT-ES	Complete kit information, including ordering, documentation, support and more (Earlier AC466)

RTG4™ FPGA Development Kit

The RTG4 FPGA Development Kit provides aerospace customers with an evaluation platform for data transmission, serial connectivity, bus interface and high-speed designs using radiation-tolerant, high-performance RTG4 FPGAs.

Buy

Step 3: View Compatible Reference Material

Reference Material	Description
AC490: Application Note AC490: Design File	A complete user guide to build a basic Mi-V CPU subsystem for RTG4 FPGA and execute your first embedded application
Mi-V RV32 User Guide Mi-V RV32IMA_L1_AHB User Guide Mi-V RV32IMA_L1_AXI User Guide Mi-V RV32IMAF_L1_AHB User Guide	User guide for Mi-V soft CPUs
RISC-V ISA Specification RISC-V ISA Privileged Specification RISC-V Debug Specification	RISC-V specification documentation
Target: RTG4-DEV-KIT	Complete kit information including ordering, documentation, support and more

Mi-V Creative Board

The Mi-V Creative development board by Future Electronics is a low-cost evaluation platform for hardware and software engineers using RISC-V soft CPUs on our IGLOO 2 FPGAs.

Buy

Step 3: View Compatible Reference Material

Reference Material	Description
Website	A complete guide to get started with the Mi-V Creative Development Board
Mi-V RV32 User Guide Mi-V RV32IMA_L1_AHB User Guide Mi-V RV32IMA_L1_AXI User Guide Mi-V RV32IMAF_L1_AHB User Guide	User guide for Mi-V soft CPUs
RISC-V ISA Specification RISC-V ISA Privileged Specification RISC-V Debug Specification	RISC-V specification documentation
Target: Mi-V Creative Development Board	Complete kit information including ordering, documentation, support and more

Renode

Renode provides a simulation model of Mi-V soft CPUs that you can use to debug firmware. Renode is bundled with SoftConsole and you can download it for free.

Step 3: View Compatible Reference Material

Soft CPU	Description
Mi-V RV32IMC User Guide	User Guide
Mi-V RV32IMA_L1_AHB User Guide	User Guide
Mi-V RV32IMA_L1_AXI User Guide	User Guide
Mi-V RV32IMAF_L1_AHB User Guide	User Guide

Documentation

Documentation	Description
Mi-V RISC-V Ecosystem Brochure	Brochure

Application Notes	Description
AN4660: Application Note (Previously AC466) AN4660: Design Files (Previously AC466)	A guide to implement auto updates and in-application programming using a Mi-V soft CPU
AN4663: Demo Guide (Previously DG0798) AN4663: Design Files (Previously DG0798)	A guide to access the PolarFire^® FPGA system services using a Mi-V soft CPU
AN4623: Demo Guide (Previously DG0799) AN4623: Design Files (Previously DG0799)	A guide to run a 1G Ethernet loopback design using IOD CDR, CoreTSE and a Mi-V soft CPU
AN4664: Demo Guide (Previously DG0802) AN4664: Design Files (Previously DG0802)	A guide to implement, control and communicate using a PCIe^® root port using a Mi-V soft CPU
AC490: RTG4™ FPGA: Building a Mi-V Processor Subsystem	A complete user guide to build a basic Mi-V CPU subsystem and execute a first embedded application in an RTG4 FPGA
AN4997: Application Note (Previously TU0775) AN4997: Design Files (Previously TU0775)	A complete user guide to build a basic Mi-V CPU subsystem and execute your first first embedded application in a PolarFire FPGA

Location	Description
Mi-V Ecosystem GitHub Repo	A repository of our RISC-V^® solutions including soft CPUs and PolarFire SoC FPGAs

Soft CPU	Description
Mi-V_RV32 V3.1	User Guide
Mi-V_RV32IMA_L1_AHB	Handbook
Mi-V_RV32IMA_L1_AXI	Handbook
Mi-V_RV32IMAF_L1_AHB	Handbook
MiV_ESS v2.0	User Guide

RISC-V Reference Material	Description
ISA Spec	RISC-V ISA Specification Document

Software Documentation	Description
Libero® SoC Design Suite	Libero SoC Design Suite Documentation
SoftConsole	SoftConsole Documentation
Renode Installation	SoftConsole v6.0 Release Notes

Support

Mi-V Soft CPUs GitHub Discussions

Try our discussions forum on our GitHub page. Browse the available database of questions and answers, post your questions and support others in the discussions.

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Mi-V Partner Information

Please contact partners directly for more information.

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Technical Support

Visit our technical support portal for assistance with your PolarFire SoC FPGA-based design.

Learn More

Mi-V RISC-V Soft CPUs

Mi‑V RISC‑V Soft CPU Ecosystem for FPGA-Based Embedded Systems

Portfolio

Get Started:

Step 1: Download Latest Tools

Step 2: Choose a Target Platform

PolarFire Evaluation Kit

Step 3: View Compatible Reference Material

PolarFire Splash Kit

Step 3: View Compatible Reference Material

RTG4™ FPGA Development Kit

Step 3: View Compatible Reference Material

Mi-V Creative Board

Step 3: View Compatible Reference Material

Renode

Step 3: View Compatible Reference Material

Documentation

Support

Mi-V Soft CPUs GitHub Discussions

Mi-V Partner Information

Technical Support

Need Help?