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Bluespec, Inc. Releases A Second Family Of Open-Source RISC-V Processors To Spur Open Innovation

By December 14, 2018May 12th, 2021No Comments

Bluespec, Inc. releases a second family of open-source RISC-V processors to spur open innovation:

  • New Flute RISC-V processor is easily customized for IoT
  • RISC-V is ushering in a new era of processor innovation
  • Download a 32-bit or 64-it RISC-V core (here)

December 13, 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.”
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