Microcontrollers

The cortex_m_rt crate provides (among other things) a reset handler for Cortex M microcontrollers.

# // Copyright 2023 Google LLC
# // SPDX-License-Identifier: Apache-2.0
#
{{#include microcontrollers/examples/src/bin/minimal.rs:Example}}

Next we'll look at how to access peripherals, with increasing levels of abstraction.

• The cortex_m_rt::entry macro requires that the function have type fn() -> !, because returning to the reset handler doesn't make sense.
• Run the example with cargo embed --bin minimal