Rust board support package for the Raspberry Pi Pico
This is a board support package for the Raspberry Pi Pico.
Current state / TODO
For now, a simple blinky example can be compiled, and runs!
The Rasperry Pi Pico contains a microcontroller using the Arm architecture. To cross-compile for that architecture, the matching target needs to be installed:
rustup target add thumbv6m-none-eabi
An example blinking a LED can be compiled with:
cargo build --target thumbv6m-none-eabi --example=blink --release
To flash the program, you must convert the ELF executable to a UF2 image.
cargo install uf2conv cargo-binutils
Convert the ELF executable to a binary image:
cargo objcopy --example blink --release -- -O binary blink.bin
Convert the binary image to a UF2 format suitable for flashing:
uf2conv blink.bin --base 0x10000000 --family 0xe48bff56 --output blink.uf2
Flash the new firmware:
- Plug in the RP2040 while holding down the
BOOTSELbutton to put in in flash mode.
- It should appear as a USB storage drive on your computer.
blink.uf2to the drive - it should automatically restart and the LED will blink!
The stage2 boot loader code in src/bs2_default_padded_checksummed.S was compiled from the pico-sdk. It is Copyright 2020 (c) 2020 Raspberry Pi (Trading) Ltd. and is licensed under the BSD-3-Clause License.