HiFive1¶

System¶

Platform RISC-V: RISC-V is an open, free ISA enabling a new era of processor innovation through open standard collaboration. Born in academia and research, RISC-V ISA delivers a new level of free, extensible software and hardware freedom on architecture, paving the way for the next 50 years of computing design and innovation.

Configuration¶

Please use freedom-e300-hifive1 ID for board option in “platformio.ini” (Project Configuration File):

[env:freedom-e300-hifive1]
platform = riscv
board = freedom-e300-hifive1

You can override default HiFive1 settings per build environment using board_*** option, where *** is a JSON object path from board manifest freedom-e300-hifive1.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:freedom-e300-hifive1]
platform = riscv
board = freedom-e300-hifive1

; change microcontroller
board_build.mcu = fe310

; change MCU frequency
board_build.f_cpu = 320000000L

Debugging¶

PIO Unified Debugger - “1-click” solution for debugging with a zero configuration.

You can switch between debugging Tools & Debug Probes using debug_tool option in “platformio.ini” (Project Configuration File).

HiFive1 has on-board debug probe and IS READY for debugging. You don’t need to use/buy external debug probe.

Frameworks¶