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Bluespec, Inc. Releases a Second Family of Open-Source RISC-V Processors to Spur Open Innovation


Bluespec Inc. has released Flute, its second in a family of commercially supported open-source RISC-V processors to spur open innovation

December 17, 2018 - Bluespec Inc. has released Flute, its second in a family of commercially supported open-source RISC-V processors.

Flute is a configurable 5-stage application processor complementing the previously released 3-stage Piccolo microcontroller, both of which are suitable for IoT. The initial release provides synthesizable Verilog for a bare metal RV32IMA core and a supervisor level RV64IMA core. Future releases will add floating point and compressed instructions (RV32GC/RV64GC) and run Linux and FreeRTOS. The Flute download (here) provides working Verilator and Icarus simulations and the Verilog has been tested in Xilinx UltraScale/UltraScale+ boards.

“The availability of commercially-backed open-source processor cores is a unique RISC-V value proposition”, says Rick O’Connor, Executive Director of the RISC-V Foundation. “With the emergence of the free and open RISC-V ISA an open-source business model is now possible for processor IP. This will certainly help RISC-V ignite a new era of hardware innovation, as Linux did for software.”



RISC-V processor IP Cores

RISC-V has demonstrated that open collaboration can produce an industrial strength ISA. The independent RISC-V Foundation (http://www.riscv.org) maintains the ISA and has over 200 members, including many notable high-tech companies. RISC-V dominates computer architecture

“We are using Bluespec’s Flute core as a fast and efficient way to take to market our Posit Numeric Unit IP," says Anantha Kinnal, Co-founder & Director of Calligo Technologies, an HPC/AI Company based in Bangalore, India. “It provides us customization opportunities, an ability to focus on our value-added technology and confidence to go to market with the necessary commercial support.”

About Bluespec, Inc.

Bluespec, Inc. provides hardware development tools that reduce the time, effort and risk of developing RISC-V processors and systems. It is a founding member of the RISC-V Foundation and a leader in the RISC-V open-source movement that is paving the way for a new wave of open innovation in processor-based systems.

Bluespec, Inc. Releases a Second Family of Open-Source RISC-V Processors to Spur Open Innovation

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