Cargo Features

[dependencies]
stm32f3 = { version = "0.15.1", default-features = false, features = ["rt", "stm32f301", "stm32f302", "stm32f303", "stm32f373", "stm32f3x4"] }
default = rt

The rt feature is set by default whenever stm32f3 is added without default-features = false somewhere in the dependency tree.

rt default

Enables device of cortex-m-rt

stm32f301

Affects stm32f3::stm32f301

stm32f302

Affects stm32f3::stm32f302

stm32f303

Affects stm32f3::stm32f303

stm32f373

Affects stm32f3::stm32f373

stm32f3x4

Affects stm32f3::stm32f3x4

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

cortex-m-rt rt