CH641

RISC-V2A, 48MHz, 16KB Flash, 2KB SRAM.

USB-PD/Type-C, BC1.2, HV DCP. ISP/ISN, QII.

Note CH641 is a riscv32ec core, which is not supported by ofiicial Rust yet. ch32-rs team maintains a fork of Rust at https://github.com/ch32-rs/rust. You can check Noxim’s Blog for riscv32ec support.

Chips

* CH641F-0x641005x0
* CH641D-0x641105x0
* CH641U-0x641505x0
* CH641P-0x641605x0