Initial support and example for STM32WB55

Cargo.example.toml

@@ -36,6 +36,7 @@ members = [
     #"examples/stm32f4",
     #"examples/stm32h7",
     #"examples/stm32l0",
+    #"examples/stm32wb55",
 
     # rp2040
     #"embassy-rp",

embassy-stm32/Cargo.toml

@@ -544,4 +544,14 @@ stm32l4s7zi = [ "stm32-metapac/stm32l4s7zi",]
 stm32l4s9ai = [ "stm32-metapac/stm32l4s9ai",]
 stm32l4s9vi = [ "stm32-metapac/stm32l4s9vi",]
 stm32l4s9zi = [ "stm32-metapac/stm32l4s9zi",]
+stm32wb55cc = [ "stm32-metapac/stm32wb55cc",]
+stm32wb55ce = [ "stm32-metapac/stm32wb55ce",]
+stm32wb55cg = [ "stm32-metapac/stm32wb55cg",]
+stm32wb55rc = [ "stm32-metapac/stm32wb55rc",]
+stm32wb55re = [ "stm32-metapac/stm32wb55re",]
+stm32wb55rg = [ "stm32-metapac/stm32wb55rg",]
+stm32wb55vc = [ "stm32-metapac/stm32wb55vc",]
+stm32wb55ve = [ "stm32-metapac/stm32wb55ve",]
+stm32wb55vg = [ "stm32-metapac/stm32wb55vg",]
+stm32wb55vy = [ "stm32-metapac/stm32wb55vy",]
 # END GENERATED FEATURES

embassy-stm32/gen_features.py

@@ -11,6 +11,7 @@ supported_families = [
     'STM32L0',
     'STM32L4',
     'STM32H7',
+    'STM32WB55',
 ]
 
 # ======= load chip list

examples/stm32wb55/.cargo/config.toml

@@ -0,0 +1,21 @@
+[unstable]
+build-std = ["core"]
+
+[target.'cfg(all(target_arch = "arm", target_os = "none"))']
+# replace STM32WB55CCUx with your chip as listed in `probe-run --list-chips`
+runner = "probe-run --chip STM32WB55CCUx --speed 1000 --connect-under-reset"
+
+rustflags = [
+  # LLD (shipped with the Rust toolchain) is used as the default linker
+  "-C", "link-arg=--nmagic",
+  "-C", "link-arg=-Tlink.x",
+  "-C", "link-arg=-Tdefmt.x",
+
+  # Code-size optimizations.
+  "-Z", "trap-unreachable=no",
+  "-C", "inline-threshold=5",
+  "-C", "no-vectorize-loops",
+]
+
+[build]
+target = "thumbv7em-none-eabihf"

examples/stm32wb55/Cargo.toml

@@ -0,0 +1,35 @@
+[package]
+authors = ["Dario Nieuwenhuis <dirbaio@dirbaio.net>"]
+edition = "2018"
+name = "embassy-stm32f4-examples"
+version = "0.1.0"
+resolver = "2"
+
+[features]
+default = [
+    "defmt-default",
+]
+defmt-default = []
+defmt-trace = []
+defmt-debug = []
+defmt-info = []
+defmt-warn = []
+defmt-error = []
+
+[dependencies]
+embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt", "defmt-trace"] }
+embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "defmt-trace", "stm32wb55cc"]  }
+embassy-extras = {version = "0.1.0", path = "../../embassy-extras" }
+stm32wb-pac = "0.2"
+
+defmt = "0.2.0"
+defmt-rtt = "0.2.0"
+
+cortex-m = "0.7.1"
+cortex-m-rt = "0.6.14"
+embedded-hal = { version = "0.2.4" }
+panic-probe = { version = "0.2.0", features= ["print-defmt"] }
+futures = { version = "0.3.8", default-features = false, features = ["async-await"] }
+rtt-target = { version = "0.3", features = ["cortex-m"] }
+heapless = { version = "0.7.1", default-features = false }

examples/stm32wb55/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");
+}

examples/stm32wb55/memory.x

@@ -0,0 +1,41 @@
+/*
+    The size of this file must be exactly the same as in other memory_xx.x files.
+    Memory size for STM32WB55xC with 256K FLASH
+*/
+
+MEMORY
+{
+    FLASH (rx)                 : ORIGIN = 0x08000000, LENGTH = 256K
+    RAM (xrw)                  : ORIGIN = 0x20000004, LENGTH = 191K
+    RAM_SHARED (xrw)           : ORIGIN = 0x20030000, LENGTH = 10K
+}
+
+/* Place stack at the end of SRAM1 */
+_stack_start = ORIGIN(RAM) + LENGTH(RAM);
+
+/*
+ * Scatter the mailbox interface memory sections in shared memory
+ */
+SECTIONS {
+    TL_REF_TABLE                     (NOLOAD) : { *(TL_REF_TABLE) } >RAM_SHARED
+
+    TL_DEVICE_INFO_TABLE    0x2003001c (NOLOAD) : { *(TL_DEVICE_INFO_TABLE) } >RAM_SHARED
+    TL_BLE_TABLE            0x2003003c (NOLOAD) : { *(TL_BLE_TABLE) } >RAM_SHARED
+    TL_THREAD_TABLE         0x2003004c (NOLOAD) : { *(TL_THREAD_TABLE) } >RAM_SHARED
+    TL_SYS_TABLE            0x20030058 (NOLOAD) : { *(TL_SYS_TABLE) } >RAM_SHARED
+    TL_MEM_MANAGER_TABLE    0x20030060 (NOLOAD) : { *(TL_MEM_MANAGER_TABLE) } >RAM_SHARED
+    TL_TRACES_TABLE         0x2003007c (NOLOAD) : { *(TL_TRACES_TABLE) } >RAM_SHARED
+    TL_MAC_802_15_4_TABLE   0x20030080 (NOLOAD) : { *(TL_MAC_802_15_4_TABLE) } >RAM_SHARED
+
+    HCI_ACL_DATA_BUFFER     0x20030a08 (NOLOAD) : { *(HCI_ACL_DATA_BUFFER) } >RAM_SHARED
+    BLE_CMD_BUFFER          0x200308fc (NOLOAD) : { *(BLE_CMD_BUFFER) } >RAM_SHARED
+    BLE_SPARE_EVT_BUF       0x200301a8 (NOLOAD) : { *(BLE_SPARE_EVT_BUF) } >RAM_SHARED
+    SYS_SPARE_EVT_BUF       0x200302b4 (NOLOAD) : { *(SYS_SPARE_EVT_BUF) } >RAM_SHARED
+    EVT_POOL                0x200303c0 (NOLOAD) : { *(EVT_POOL) } >RAM_SHARED
+    SYS_CMD_BUF             0x2003009c (NOLOAD) : { *(SYS_CMD_BUF) } >RAM_SHARED
+    SYSTEM_EVT_QUEUE        0x20030b28 (NOLOAD) : { *(SYSTEM_EVT_QUEUE) } >RAM_SHARED
+    EVT_QUEUE               0x20030b10 (NOLOAD) : { *(EVT_QUEUE) } >RAM_SHARED
+    CS_BUFFER               0x20030b18 (NOLOAD) : { *(CS_BUFFER) } >RAM_SHARED
+    TRACES_EVT_QUEUE        0x20030094 (NOLOAD) : { *(TRACES_EVT_QUEUE) } >RAM_SHARED
+    FREE_BUF_QUEUE          0x2003008c (NOLOAD) : { *(FREE_BUF_QUEUE) } >RAM_SHARED
+}

examples/stm32wb55/src/bin/blinky.rs

@@ -0,0 +1,42 @@
+#![no_std]
+#![no_main]
+#![feature(trait_alias)]
+#![feature(min_type_alias_impl_trait)]
+#![feature(impl_trait_in_bindings)]
+#![feature(type_alias_impl_trait)]
+#![allow(incomplete_features)]
+
+#[path = "../example_common.rs"]
+mod example_common;
+use embassy_stm32::gpio::{Level, Output};
+use embedded_hal::digital::v2::OutputPin;
+use example_common::*;
+
+use cortex_m_rt::entry;
+use stm32wb_pac as pac;
+
+#[entry]
+fn main() -> ! {
+    info!("Hello World!");
+
+    let pp = pac::Peripherals::take().unwrap();
+
+    pp.RCC.ahb2enr.modify(|_, w| {
+        w.gpioben().set_bit();
+        w
+    });
+
+    let p = embassy_stm32::init(Default::default());
+
+    let mut led = Output::new(p.PB0, Level::High);
+
+    loop {
+        info!("high");
+        led.set_high().unwrap();
+        cortex_m::asm::delay(10_000_000);
+
+        info!("low");
+        led.set_low().unwrap();
+        cortex_m::asm::delay(10_000_000);
+    }
+}

examples/stm32wb55/src/example_common.rs

@@ -0,0 +1,17 @@
+#![macro_use]
+
+use defmt_rtt as _; // global logger
+use panic_probe as _;
+
+pub use defmt::*;
+
+use core::sync::atomic::{AtomicUsize, Ordering};
+
+defmt::timestamp! {"{=u64}", {
+        static COUNT: AtomicUsize = AtomicUsize::new(0);
+        // NOTE(no-CAS) `timestamps` runs with interrupts disabled
+        let n = COUNT.load(Ordering::Relaxed);
+        COUNT.store(n + 1, Ordering::Relaxed);
+        n as u64
+    }
+}

rust-toolchain.toml

@@ -3,4 +3,4 @@
 [toolchain]
 channel = "nightly-2021-05-07"
 components = [ "rust-src", "rustfmt" ]
-targets = [ "thumbv7em-none-eabi", "thumbv6m-none-eabi" ]
+targets = [ "thumbv7em-none-eabi", "thumbv6m-none-eabi", "thumbv7em-none-eabihf" ]

stm32-data

@@ -1 +1 @@
-Subproject commit a33b0b94b06cda756ed8cff0c404131f0349ae5d
+Subproject commit 8f32d8e4f25276f6f2155e8dd5bbed1acefd657b