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Welcome to OpenSiFli at GitHub, Home of SF32!

SiFli Technologies is a fabless semiconductor design company specializing in silicon platforms tailored for modern AIoT applications. These platforms are typically battery-powered and need to deliver either high-performance computing, ultra-low power consumption, or, frequently, both simultaneously.

SiFli’s SF32 series of microcontrollers feature microprocessors that operate at a peak frequency of 240MHz while ensuring minimal leakage current in sleep mode. The integrated I$ and D$ caches enable seamless execution from extended memory like PSRAM and NOR Flash. The series also provide a range of SiP (system-in-package) options, with in-package PSRAM capacities reaching up to 64MB.

All SiFli microcontrollers come standard with an in-house developed 2.5D GPU, providing hardware-accelerated graphics processing for tasks such as alpha blending, rotation, scaling, and more. An independent display controller manages data transfer to displays with various interfaces, including SPI (1/2/4 data lanes), 8080, DPI/RGB, MIPI, JDI, and others.

Low-power wireless connectivity is provided via single-mode BLE or dual-mode BT/BLE, offering industry-leading ultra-low power consumption. For instance, maintaining a BLE connection with a 1-second interval requires as little as 6µA, while keeping a BT sniff mode (1-attempt) with a 1-second interval requires less than 10uA.

Here you can find a list of resources to help you develope your own products.

Website

SDK

Purchasing the Hardware

Discussions and Requests

GitHub discussions are used for various topics and feature and example requests.

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  1. SiFli-SDK SiFli-SDK Public

    C 147 60

Repositories

Showing 10 of 50 repositories
  • sftool Public

    sftool is a download tool for the SiFli family of chips

    OpenSiFli/sftool’s past year of commit activity
    Rust 11 Apache-2.0 9 0 0 Updated Jan 7, 2026
  • hub-mirror-action Public Forked from Yikun/hub-mirror-action

    一个Github Action,用于在Github, Gitee, GitLab和GitCode之间同步代码。Action for mirroring repos between Hubs (like Github, Gitee, GitLab and GitCode).

    OpenSiFli/hub-mirror-action’s past year of commit activity
    Python 0 MIT 199 0 0 Updated Jan 7, 2026
  • SiFli-SDK Public
    OpenSiFli/SiFli-SDK’s past year of commit activity
    C 147 Apache-2.0 60 44 3 Updated Jan 6, 2026
  • sftool-gui Public

    A user-friendly graphical serial port operation tool for SIFLI series SoC chips.

    OpenSiFli/sftool-gui’s past year of commit activity
    Vue 10 Apache-2.0 7 1 1 Updated Jan 6, 2026
  • xiaozhi-sf32 Public Forked from 78/xiaozhi-sf32

    Build your own AI friend via Bluetooth by SF32

    OpenSiFli/xiaozhi-sf32’s past year of commit activity
    C 9 MIT 161 0 0 Updated Jan 6, 2026
  • SiliconSchema Public

    SiFli Chip Structured Data Warehouse, containing chip pin definitions, multiplexing configurations, and variant information

    OpenSiFli/SiliconSchema’s past year of commit activity
    Python 1 0 0 0 Updated Jan 5, 2026
  • probe-rs Public Forked from probe-rs/probe-rs

    A debugging toolset and library for debugging embedded ARM and RISC-V targets on a separate host

    OpenSiFli/probe-rs’s past year of commit activity
    Rust 0 Apache-2.0 517 0 0 Updated Dec 31, 2025
  • SiFli-Wiki Public
    OpenSiFli/SiFli-Wiki’s past year of commit activity
    HTML 5 MIT 11 0 5 Updated Dec 31, 2025
  • OpenSiFli/SiFli-Bluetooth’s past year of commit activity
    C 4 9 1 0 Updated Dec 24, 2025
  • SFDialPlateSDK Public

    SFDialPlateSDK

    OpenSiFli/SFDialPlateSDK’s past year of commit activity
    Swift 0 Apache-2.0 1 0 0 Updated Dec 23, 2025

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