From 9f7252b2ce1a9b2df3f975e80a044f2ff6a9427e Mon Sep 17 00:00:00 2001 From: Kovacsics Robert Date: Sun, 26 Nov 2023 12:11:39 +0000 Subject: [PATCH] Create a simple working pico application --- .cargo/config.toml | 27 +++ .gitignore | 1 + Cargo.lock | 516 +++++++++++++++++++++++++++++++++++++++++++++ Cargo.toml | 14 ++ build.rs | 31 +++ memory.x | 15 ++ src/main.rs | 16 ++ 7 files changed, 620 insertions(+) create mode 100644 .cargo/config.toml create mode 100644 .gitignore create mode 100644 Cargo.lock create mode 100644 Cargo.toml create mode 100644 build.rs create mode 100644 memory.x create mode 100644 src/main.rs diff --git a/.cargo/config.toml b/.cargo/config.toml new file mode 100644 index 0000000..94bef43 --- /dev/null +++ b/.cargo/config.toml @@ -0,0 +1,27 @@ +[target.'cfg(all(target_arch = "arm", target_os = "none"))'] +# Choose a default "cargo run" tool (see README for more info) +# - `probe-rs` provides flashing and defmt via a hardware debugger, and stack +# unwind on panic +# - elf2uf2-rs loads firmware over USB when the rp2040 is in boot mode +runner = "probe-rs run --chip RP2040 --protocol swd" +# runner = "elf2uf2-rs -d" + +rustflags = [ + "-C", "linker=flip-link", + "-C", "link-arg=--nmagic", + "-C", "link-arg=-Tlink.x", + "-C", "link-arg=-Tdefmt.x", + + # Code-size optimizations. + # trap unreachable can save a lot of space, but requires nightly compiler. + # uncomment the next line if you wish to enable it + # "-Z", "trap-unreachable=no", + "-C", "inline-threshold=5", + "-C", "no-vectorize-loops", +] + +[build] +target = "thumbv6m-none-eabi" + +[env] +DEFMT_LOG = "debug" diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..ea8c4bf --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +/target diff --git a/Cargo.lock b/Cargo.lock new file mode 100644 index 0000000..6a5599a --- /dev/null +++ b/Cargo.lock @@ -0,0 +1,516 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +version = 3 + 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https://doc.rust-lang.org/cargo/reference/manifest.html + +[dependencies] +cortex-m = "0.7.7" +cortex-m-rt = "0.7.3" +defmt = "0.3.5" +defmt-rtt = "0.4.0" +panic-probe = { version = "0.3.1", features = ["print-defmt"] } +rp-pico = "0.8.0" diff --git a/build.rs b/build.rs new file mode 100644 index 0000000..d534cc3 --- /dev/null +++ b/build.rs @@ -0,0 +1,31 @@ +//! This build script copies the `memory.x` file from the crate root into +//! a directory where the linker can always find it at build time. +//! For many projects this is optional, as the linker always searches the +//! project root directory -- wherever `Cargo.toml` is. However, if you +//! are using a workspace or have a more complicated build setup, this +//! build script becomes required. Additionally, by requesting that +//! Cargo re-run the build script whenever `memory.x` is changed, +//! updating `memory.x` ensures a rebuild of the application with the +//! new memory settings. + +use std::env; +use std::fs::File; +use std::io::Write; +use std::path::PathBuf; + +fn main() { + // Put `memory.x` in our output directory and ensure it's + // on the linker search path. + let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap()); + File::create(out.join("memory.x")) + .unwrap() + .write_all(include_bytes!("memory.x")) + .unwrap(); + println!("cargo:rustc-link-search={}", out.display()); + + // By default, Cargo will re-run a build script whenever + // any file in the project changes. By specifying `memory.x` + // here, we ensure the build script is only re-run when + // `memory.x` is changed. + println!("cargo:rerun-if-changed=memory.x"); +} diff --git a/memory.x b/memory.x new file mode 100644 index 0000000..4077aab --- /dev/null +++ b/memory.x @@ -0,0 +1,15 @@ +MEMORY { + BOOT2 : ORIGIN = 0x10000000, LENGTH = 0x100 + FLASH : ORIGIN = 0x10000100, LENGTH = 2048K - 0x100 + RAM : ORIGIN = 0x20000000, LENGTH = 256K +} + +EXTERN(BOOT2_FIRMWARE) + +SECTIONS { + /* ### Boot loader */ + .boot2 ORIGIN(BOOT2) : + { + KEEP(*(.boot2)); + } > BOOT2 +} INSERT BEFORE .text; diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..28ed712 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,16 @@ +#![no_std] +#![no_main] + +use bsp::entry; +use rp_pico as bsp; + +use defmt::*; +use defmt_rtt as _; +use panic_probe as _; + +#[entry] +fn main() -> ! { + println!("Hello, world!"); + + loop {} +}