cnlohr/ch32fun

Health v2 · maintenance only

Adoption not part of the score

1585 stars · 275 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A minimal open-source development environment (headers, examples, and tooling) for WCH RISC-V microcontrollers like the CH32V003, built around gcc-riscv64 without a heavy HAL. It includes minichlink for cross-platform flashing/debugging and a single self-contained source/header pair for compiling bare-metal firmware.

Use cases

• blink an LED on a CH32V003 with minimal firmware size
• flash and debug WCH RISC-V microcontrollers from Linux or Windows
• program a 10-cent RISC-V chip without a heavyweight vendor HAL
• printf-debug over a single wire on a CH32V003
• build bare-metal firmware for CH32V and CH5xx series chips
• use gdbserver-style debugging with Visual Studio on a cheap RISC-V MCU

When to choose

• you want tiny, fast-booting firmware and direct register access via the TRM instead of a bulky HAL
• you need cross-platform flashing/debugging for WCH CH32/CH5xx chips with common programmers
• you're doing cost-sensitive embedded projects with the CH32V003 or related WCH parts

When to avoid

• you prefer a full vendor HAL with extensive peripheral libraries and official support
• you're targeting non-WCH microcontrollers like STM32 or ESP32
• you need extensive per-chip example coverage beyond what the project provides

Facets

library · maturity active

embedded developer-tools compiler sdk testing embedded-systems developer-tools hardware embedded windows cli cross-platform risc-v microcontroller wch ch32v003 bare-metal no-hal toolchain minichlink gdbserver swio-programming linux macos

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