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Showing content from https://github.com/avr-rust/blink below:

avr-rust/blink: A blinking LED program written in Rust for the AVR

A small Hello World Rust application for the AVR.

The program itself toggles a LED on PORTB periodically.

Designed for the ATmega328p.

The AVR-Rust Book

• A recent version of the nightly Rust compiler. Anything including or greater than rustc 1.63.0-nightly (fee3a459d 2022-06-05) can be used.
• A recent version of Cargo. At least 1.52.0 or greater.
• The rust-src rustup component - $ rustup component add rust-src
• AVR-GCC on the system for linking
• AVR-Libc on the system for support libraries

Now to build, run:

# Ensure time delays are consistent with a 16MHz microcontroller.
export AVR_CPU_FREQUENCY_HZ=16000000

# Compile the crate to an ELF executable.
cargo build --release

There should now be an ELF file at target/avr-atmega328p/release/blink.elf. It can be flashed directly to an AVR microcontroller or ran inside a simulator.

• The AVR-Rust book

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