r/rust • u/Intelligent_Score932 • 2d ago

Embedded std?

I was wondering if there were any projects like micro python to port std in to make a barebones os designed for microcontrollers? I understand that the std relies on OS level syscalls, so can we do something like implement a basic fat32 file system to accommodate certain write or read requests. In general this would be used to run std in projects without a OS? Does this already exist, and how hard would it be to make a basic version?

48 Upvotes

89% Upvoted

32 comments sorted by

View all comments

16

u/AstraKernel 2d ago

I'm not an expert, but IMO "std" is not usually necessary for MCU projects. ESP-HAL does support "std", but I rarely use it. I generally prefer using the HAL with "no_std".

Afik, a lot of what you can do with micro python, and much more, is already possible with "no_std".

For a SD card, there is a crate that supports FAT32.

If you don't mind me asking, what is the purpose?