Last Updated on March 27, 2020
HiFive Unleashed
SiFive has announced their HiFive Unleashed, the first Linux RISC-V developer board.
RISC-V (pronounced “risk-five”) is an open instruction set architecture (ISA) based on established reduced instruction set computing (RISC) principles. RISC-V is an open source ISA that is not subject to patents, and is available under the BSD license.
Specifications
The Freedom U540 is a 64-bit RISC-V CPU built on a 28nm process, with the following specifications:
- Linux-capable RISC-V SoC
- 4+1 Multi-Core Coherent Configuration, up to 1.5 GHz
- 4x U54 RV64GC Application Cores with Sv39 Virtual Memory Support
- 1x E51 RV64IMAC Management Core
- Coherent 2MB L2 Cache
- 64-bit DDR4 with ECC
- 1x Gigabit Ethernet
- Built in 28nm
The development board offers:
- SiFive Freedom U540 SoC
- 8GB DDR4 with ECC for serious application development
- Gigabit Ethernet Port
- 32MB Quad SPI Flash from ISSI
- MicroSD Card for removable storage
- FMC Connector for future expansion with add-in cards
Development boards start at $999 and will ship at the end of June 2018.