Rust on BBC micro:bit
@swissgathu
micro:bit
features
pins layout
architecture
<device schemaVersion="1.1" xmlns:xs="..." >
<vendor>Nordic Semiconductor</vendor>
<vendorID>Nordic</vendorID>
<name>nrf51</name>
<series>nrf51</series>
<version>522</version>
<description>nRF51 reference ..</description>
<licenseText>...</licenseText>
<addressUnitBits>8</addressUnitBits>
<width>32</width>
<size>32</size>
<resetValue>0x00000000</resetValue>
<resetMask>0xFFFFFFFF</resetMask>
<cpu>
<name>CM0</name>
<revision>r3p1</revision>
<endian>little</endian>
<mpuPresent>0</mpuPresent>
....Rust
Brief Intro
Embedded Rust
Support
-
cross-compilation
-
build customization
Tools
-
rustup
-
cargo & xargo
-
nightly rust
Rust on the micro:bit
setup
$ rustup toolchain install nightlynightly compiler
$ rustup override set nightly$ cargo new `awesome-project-name`$ arm-none-eabi-gdbARM Embedded Toolchain
$ arm-none-eabi-ld$ cat .cargo/configCargo configuration
[target.thumbv6m-none-eabi]
runner = 'arm-none-eabi-gdb'
rustflags = [
"-C", "link-arg=-Tlink.x",
"-C", "linker=arm-none-eabi-ld",
"-Z", "linker-flavor=ld",
]
[build]
target = "thumbv6m-none-eabi"$ cat cortex-m0.json{
"arch": "arm",
"data-layout": "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64",
"executables": true,
"os": "none",
...
"linker-flavor": "gcc",
"cpu": "cortex-m0",
"llvm-target": "thumbv6m-none-eabi",
"features": "+strict-align",
"relocation-model": "static",
"no-compiler-rt": true
}