HiFive1 Rev B

Since the launch of the original HiFive1 and the FE310 in 2016 we have received lots of great community feedback. The FE310-G002 is an upgrade to the Freedom Everywhere SoC that adds support for the latest RISC-V Debug Spec 0.13 hardware I²C two UARTs and power gating the core rail in low power sleep modes. Like the original FE310 the FE310-G002 features SiFive’s E31 CPU core complex a high-performance 32-bit RV32IMAC core with a 16 KB L1 instruction cache a 16 KB data SRAM scratchpad and hardware multiply/divide. Running at 320+ MHz the FE310 is among the fastest microcontrollers on the market. The HiFive1 dev board has also been upgraded. Powered by the FE310-G002 the new HiFive1 Rev B has wireless connectivity through an onboard Wi-Fi/Bluetooth module. The USB debugger has been upgraded to Segger J-Link with support for drag & drop code download. In favor of driving GPIO directly from the FE310 the HiFive1 Rev B supports 3.3 V I/O only.