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Bluespec is a US company that provides RISC-V processors and development tools that “speed integration, debugging and verification of embedded systems”. Their first RISC-V release was the Piccolo 3-stage in-order processor targeting low end embedded systems and IoT applications. The company has now announced Bluespec Flute a 5-stage in-order open source RISC-V processor with the release of a synthesizable Verilog for a bare metal RV32IMA core and a supervisor level RV64IMA core. Bluespec Flute key features: RV32IMU with ‘M’ extension (integer multiply/divide) RV64IMASU with ‘A’ extension (atomic memory ops) and ‘M’ extension (integer multiply/divide) AXI4-Lite interface 5-stage pipeline 100 MHz (Xilinx UltraScale) < 5000 LUTs (Xilinx UltraScale) 4KB Instruction & Data caches Hardware multiply-divide RISC-V Debug Module You’ll find the source code in BSV (Bluespec SystemVerilog) and instructions to get started in Github. Bluespec Flute core has been tested in Xilinx UltraScale/UltraScale+ boards so far. In the future, the company […]