使用 elf2uf2-rs 在 Raspberry Pi Pico 上運行 cargo run 代碼

Question

我嘗試在 Raspberry Pi Pico 上運行 Rust 代碼。 一個簡單的“blink”示例應用程序成功（看起來）使用：

cargo build --release --target=thumbv6m-none-eabi

我已經安裝了elf2uf2-rs ：

cargo install elf2uf2-rs

然后我嘗試使用以下命令在 Raspberry Pi Pico 上運行 Blink 應用程序：

cargo run --release --target=thumbv6m-none-eabi

但此消息失敗，其中“rp2”是我的二進制文件的名稱：

target/thumbv6m-none-eabi/release/rp2: cannot execute binary file

關於什么可能是錯誤的任何建議？

這是我的Cargo.toml ：

[package]
name = "rp2"
version = "0.1.0"
edition = "2021"

[dependencies]
rp2040-hal = "0.3.0"
cortex-m = "0.7.2"
embedded-hal = { version = "0.2.5", features = ["unproven"] }
eh1_0_alpha = { version="=1.0.0-alpha.6", package="embedded-hal", optional=true }
embedded-time = "0.12.0"
panic-halt = "0.2.0"
rp2040-boot2 = "0.2.0"
cortex-m-rt = "0.7"
rp-pico = "0.2.0"

[dev-dependencies]
cortex-m-rt = "0.7"
panic-halt = "0.2.0"
rp2040-boot2 = "0.2.0"

[profile.dev]
panic = "abort"

[profile.release]
panic = "abort"

---

更新

我現在添加了一個包含以下內容的文件.cargo/config.toml ：

# Choose a default "cargo run" tool.
# probe-run is recommended if you have a debugger
# elf2uf2-rs loads firmware over USB when the rp2040 is in boot mode
[target.'cfg(all(target_arch = "arm", target_os = "none"))']
# runner = "probe-run --chip RP2040"
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"

和一個包含以下內容的memory.x文件：

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;

但隨后cargo build --release命令失敗並出現以下錯誤：

error: linking with `rust-lld` failed: exit status: 1
...
= note: rust-lld: error: cannot find linker script defmt.x

---

我使用帶有 M1 Apple Silicon 芯片的 MacBook，這可能是AArch64 系統下的相關問題 rust-lld 問題。

Answer 1

我現在已經在 Raspberry Pi Pico 上運行了代碼。

第一個問題是我沒有創建.cargo/config.toml文件，其中包含使用 elf2uf2“運行”的指令：

[target.'cfg(all(target_arch = "arm", target_os = "none"))']
runner = "elf2uf2-rs -d"

另一個問題是我的.cargo/config.toml還包含對我的系統上沒有的defmt的引用，因此在注釋掉這一行時（在rustflags下），使用cargo build --release編譯的代碼和它使用cargo run --release在 Raspberry Pi Pico 上運行：

# "-C", "link-arg=-Tdefmt.x",