I ended up making my own adapter based on a cheap CH32X035 dev board [0] - largely as an excuse to also write an 'RTOS' for RISC-V. The code is available on Git

I ended up making my own adapter based on a cheap CH32X035 dev board [0] - largely as an excuse to also write an 'RTOS' for RISC-V. The code is available on GitHub [1] though I haven't really documented it. [0] - https://www.aliexpress.com/item/1005005718558442.html https://www.aliexpress.com/item/1005005718558442.html [1] - https://github.com/benpye/rtos https://github.com/benpye/rtos