10 releases (5 breaking)

0.6.1	Aug 1, 2022
0.6.0	Jul 4, 2022
0.5.1	May 14, 2022
0.4.1	Mar 22, 2022
0.1.0	Mar 26, 2021

#1621 in Embedded development

Used in 2 crates

MIT/Apache

740KB
11K SLoC

stm32wlxx-hal

Embedded rust HAL (hardware abstraction layer) for the STM32WL series.

This is still in development, the code that exists today covers basic usage of:

SubGHz LoRa TX + RX
SubGHz (G)FSK TX + RX
SPI
GPIO
UART
I2C
Low-power timers
ADC
DAC
PKA ECDSA signing + verification
Secure random number generation
AES ECB encryption + decryption
RTC date and time

Usage

[dependencies.stm32wlxx-hal]
version = "0.6.1"
features = [
    # use exactly one to match your target hardware
    "stm32wl5x_cm0p",
    "stm32wl5x_cm4",
    "stm32wle5",
    # optional: use the cortex-m-rt interrupt interface
    "rt",
    # optional: use defmt
    "defmt",
    # optional: enable conversions with embedded-time types
    "embedded-time",
    # optional: use the real time clock (RTC)
    "chrono",
]

Examples

All examples run on the NUCLEO-WL55JC2. Examples are located in the examples crate. The arguments got long for this, so a run-ex cargo alias is provided.

DEFMT_LOG=trace cargo run-ex gpio-blink

The on-target tests are also excellent reference material.

System Level Example

The testsuites and examples are a good starting point, but they demonstrate features independent of each-other. A system-level example using multiple features simultaneously is provided in a separate repo: stm32wl-lightswitch-demo

Unit Tests

Off-target unit tests use the built-in cargo framework. You must specify the target device as a feature.

cargo test --features stm32wl5x_cm4

no-std stm32wlxx-hal