SiFive

Registry:: https://registry.platformio.org/platforms/platformio/sifive
Configuration:: platform = platformio/sifive

SiFive brings the power of open source and software automation to the semiconductor industry, making it possible to develop new hardware faster and more affordably than ever before.

For more detailed information please visit vendor site.

Examples 

Examples are listed from SiFive development platform repository:

Debugging 

Debugging - “1-click” solution for debugging with a zero configuration.

Supported debugging tools are listed in “Debug” column. For more detailed information, please scroll table by horizontal. You can switch between debugging Tools & Debug Probes using debug_tool option in “platformio.ini” (Project Configuration File).

Warning

You will need to install debug tool drivers depending on your system. Please click on compatible debug tool below for the further instructions.

On-Board Debug Tools 

Boards listed below have on-board debug probe and ARE READY for debugging! You do not need to use/buy external debug probe.

Name	MCU	Frequency	Flash	RAM
Arty FPGA Dev Kit	FE310	450MHz	16MB	256MB
HiFive Unleashed	FU540	1500MHz	32MB	8GB
HiFive1	FE310	320MHz	16MB	16KB
HiFive1 Rev B	FE310	320MHz	16MB	16KB
SparkFun RED-V RedBoard	FE310	320MHz	16MB	16KB
SparkFun RED-V Thing Plus	FE310	320MHz	16MB	16KB

Stable and upstream versions 

You can switch between stable releases of SiFive development platform and the latest upstream version using platform option in “platformio.ini” (Project Configuration File) as described below.

Stable

; Latest stable version, NOT recommended
; Pin the version as shown below
[env:latest_stable]
platform = sifive
board = ...

; Specific version
[env:custom_stable]
platform = sifive@x.y.z
board = ...

Upstream

[env:upstream_develop]
platform = https://github.com/platformio/platform-sifive.git
board = ...

Packages 

Name	Description
framework-freedom-e-sdk	Open Source Software for Developing on the SiFive Freedom E Platform
framework-zephyr	Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures
tool-cmake	CMake is an open-source, cross-platform family of tools designed to build, test and package software.
tool-dtc	Device tree compiler
tool-gperf	GNU gperf is a perfect hash function generator
tool-jlink	Software and Documentation Pack for SEGGER J-Link debug probes
tool-ninja	Ninja is a small build system with a focus on speed
tool-openocd-riscv	Fork of Open On-Chip Debugger that has RISC-V support
tool-qemu-riscv	QEMU is a generic and open source machine emulator and virtualizer
tool-renode	Renode is a development framework which accelerates IoT and embedded systems development by letting you simulate physical hardware systems
toolchain-riscv	GNU toolchain for RISC-V, including GCC

Warning

Linux Users:

Install “udev” rules 99-platformio-udev.rules

Raspberry Pi users, please read this article Enable serial port on Raspberry Pi.

Windows Users:

Please check that you have a correctly installed USB driver from board manufacturer

Frameworks 

Name	Description
Freedom E SDK	Open Source Software for Developing on the SiFive Freedom E Platform
FreeRTOS	FreeRTOS is a real-time operating system kernel for embedded devices that has been ported to 40 microcontroller platforms.
Zephyr	Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures

Boards 

Note

You can list pre-configured boards by pio boards command
For more detailed board information please scroll the tables below by horizontally.

SiFive

Name	Debug	MCU	Frequency	Flash	RAM
HiFive Unleashed	On-board	FU540	1500MHz	32MB	8GB
HiFive1	On-board	FE310	320MHz	16MB	16KB
HiFive1 Rev B	On-board	FE310	320MHz	16MB	16KB

SparkFun

Name	Debug	MCU	Frequency	Flash	RAM
SparkFun RED-V RedBoard	On-board	FE310	320MHz	16MB	16KB
SparkFun RED-V Thing Plus	On-board	FE310	320MHz	16MB	16KB

Xilinx

Name	Debug	MCU	Frequency	Flash	RAM
Arty FPGA Dev Kit	On-board	FE310	450MHz	16MB	256MB