Linux-capable RISC-V soft cores for Achronix FPGAs
“Bluespec’s RISC-V processors now integrate into the Achronix 2D network-on-chip architecture, simplifying integration and enabling engineers to add scalable processing to their designs,” according to Achronix. “The network allows multiple instances of the RISC-V core to be added, and relocated to different areas of the FPGA fabric while maintaining performance.”
Developers, it went on to say, can therefore run C/C++ applications on bare metal or operating systems on hardware subsystems, with one to eight 64bit processors individually configured with floating point instructions, custom instructions and hardware accelerators.
Two integer RISC-V architectures are available: RV32I or RV64I, with pipelines up to five stages. To these can be added extensions for multiplication, atomic operations, compressed code, single-precision floating point or double-precision floating point. Modes include privilege level user, supervisor and machine.
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Achronix FPGAs add support for Bluespec’s Linux-capable RISC-V soft processors
Achronix Semiconductor, a developer of FPGAs and embedded FPGA (eFPGA) IP, and Bluespec, a supplier of RISC-V tools and silicon IP, have announced a family of Linux-capable RISC-V soft processors that are available for the Achronix Speedster 7t FPGA family.