A small Hello World Rust application for the AVR.
The program itself toggles a LED on PORTB periodically.
Designed for the ATmega328p.
- A recent version of the nightly Rust compiler. Anything including or greater than
rustc 1.47.0-nightly (0820e54a8 2020-07-23)can be used.
- 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:
rustup override set nightly # Ensure time delays are consistent with a 16MHz microcontroller. export AVR_CPU_FREQUENCY_HZ=16000000 # Compile the crate to an ELF executable. cargo build -Z build-std=core --target avr-atmega328p.json --release
There should now be an ELF file at
can be flashed directly to an AVR microcontroller or ran inside a simulator.
- The AVR-Rust book