Embedded Rust device crates for WCH's RISC-V and Cortex-M microcontrollers.

• Support CH32V3x/CH32V2x family
• Support CH32V103x family
• Toolchains
  • wchisp for Linux/macOS/Windows
• HAL crate for CH32V3x/CH32V2x family
• HAL crate for CH32V103x family
• CHxxx interface or BLE MCUs.
• Cortex-M MCUs.

• 32-bit General Purpose RISC-V
• 32-bit General Purpose Cortex-M3
• 32-bit High-speed Interface MCU, RISC-V or Unmentioned
• 32-bit BLE MCU, RISC-V or Coretex-M

NOTE: Will never support 8-bit MCUs.

• D6: Low-and-medium-density general
• D8: High-density general
• D8C: Connectivity or interconnectivity
• D8W: Wireless

Nick name: "赤菟"(Chitu). IP Core brand: 青稞(Qingke).

• CH32V103x Qingke-V3A RV32IMAC
• CH32V203x Qingke-V4B Hardware Interrupt stack
• CH32V208x Qingke-V4C Hardware division, memory protect
• CH32V303x/305x/307x Qingke-V4F Hardware floating point
• CH56x: RISC-V3A
• CH571, CH573: RISC-V3A BLE
• CH58x: RISC-V3A BLE

CH32V20x_D6: CH32V203F6, CH32V203G6, CH32V203K6, CH32V203K8, CH32V203C6 and CH32V203C8. CH32V20x_D8: CH32V203RB.
CH32V20x_D8W: CH32V208GB, CH32V208CB, CH32V208RB and CH32V208WB.
CH32V30x_D8: CH32V303CB, CH32V303RB, CH32V303RC and CH32V303VC.
CH32V30x_D8C: CH32V305FB, CH32V305RB, CH32V307RC, CH32V307WC and CH32V307VC.

CH32F20x_D6: CH32F203K8, CH32F203C6 and CH32F203C8.
CH32F20x_D8: CH32F203CB, CH32F203RC and CH32F203VC.
CH32F20x_D8C: CH32F205RB and CH32F207VC.
CH32F20x_D8W: CH32F208RB and CH32F208WB.

• MRS: MounRiver Studio
• Official Flash Tool: NanjingQinheng/WCH-Link
• OpenOCD fork with WCH-Link support(wlink)
• ch32-rs/wchisp

• https://github.com/openwch