5 files changed, 158 insertions, 0 deletions

diff --git a/examples/stm32h755cm4/.cargo/config.toml b/examples/stm32h755cm4/.cargo/config.toml
new file mode 100644
index 000000000..f9ae6f2e7
--- /dev/null
+++ b/examples/stm32h755cm4/.cargo/config.toml
@@ -0,0 +1,8 @@
+[target.thumbv7em-none-eabihf]
+runner = 'probe-rs run --chip STM32H755ZITx'
+
+[build]
+target = "thumbv7em-none-eabihf" # Cortex-M4F and Cortex-M7F (with FPU)
+
+[env]
+DEFMT_LOG = "trace"
diff --git a/examples/stm32h755cm4/Cargo.toml b/examples/stm32h755cm4/Cargo.toml
new file mode 100644
index 000000000..c366bc3d2
--- /dev/null
+++ b/examples/stm32h755cm4/Cargo.toml
@@ -0,0 +1,75 @@
+[package]
+edition = "2021"
+name = "embassy-stm32h7-examples"
+version = "0.1.0"
+license = "MIT OR Apache-2.0"
+
+[dependencies]
+# Change stm32h755zi-cm4 to your chip name, if necessary.
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32h755zi-cm4", "time-driver-tim2", "exti", "memory-x", "unstable-pac", "chrono"] }
+embassy-sync = { version = "0.6.0", path = "../../embassy-sync", features = ["defmt"] }
+embassy-embedded-hal = { version = "0.1.0", path = "../../embassy-embedded-hal" }
+embassy-executor = { version = "0.5.0", path = "../../embassy-executor", features = ["task-arena-size-32768", "arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
+embassy-time = { version = "0.3.1", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
+embassy-net = { version = "0.4.0", path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet", "proto-ipv6", "dns"] }
+embassy-usb = { version = "0.2.0", path = "../../embassy-usb", features = ["defmt"] }
+embassy-futures = { version = "0.1.0", path = "../../embassy-futures" }
+
+defmt = "0.3"
+defmt-rtt = "0.4"
+
+cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
+cortex-m-rt = "0.7.0"
+embedded-hal = "0.2.6"
+embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
+embedded-hal-async = { version = "1.0" }
+embedded-nal-async = { version = "0.7.1" }
+embedded-io-async = { version = "0.6.1" }
+panic-probe = { version = "0.3", features = ["print-defmt"] }
+heapless = { version = "0.8", default-features = false }
+rand_core = "0.6.3"
+critical-section = "1.1"
+micromath = "2.0.0"
+stm32-fmc = "0.3.0"
+embedded-storage = "0.3.1"
+static_cell = "2"
+chrono = { version = "^0.4", default-features = false }
+grounded = "0.2.0"
+
+# cargo build/run
+[profile.dev]
+codegen-units = 1
+debug = 2
+debug-assertions = true # <-
+incremental = false
+opt-level = 3 # <-
+overflow-checks = true # <-
+
+# cargo test
+[profile.test]
+codegen-units = 1
+debug = 2
+debug-assertions = true # <-
+incremental = false
+opt-level = 3 # <-
+overflow-checks = true # <-
+
+# cargo build/run --release
+[profile.release]
+codegen-units = 1
+debug = 2
+debug-assertions = false # <-
+incremental = false
+lto = 'fat'
+opt-level = 3 # <-
+overflow-checks = false # <-
+
+# cargo test --release
+[profile.bench]
+codegen-units = 1
+debug = 2
+debug-assertions = false # <-
+incremental = false
+lto = 'fat'
+opt-level = 3 # <-
+overflow-checks = false # <-
diff --git a/examples/stm32h755cm4/build.rs b/examples/stm32h755cm4/build.rs
new file mode 100644
index 000000000..30691aa97
--- /dev/null
+++ b/examples/stm32h755cm4/build.rs
@@ -0,0 +1,35 @@
+//! 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");
+
+    println!("cargo:rustc-link-arg-bins=--nmagic");
+    println!("cargo:rustc-link-arg-bins=-Tlink.x");
+    println!("cargo:rustc-link-arg-bins=-Tdefmt.x");
+}
diff --git a/examples/stm32h755cm4/memory.x b/examples/stm32h755cm4/memory.x
new file mode 100644
index 000000000..f946b6210
--- /dev/null
+++ b/examples/stm32h755cm4/memory.x
@@ -0,0 +1,14 @@
+MEMORY
+{
+    FLASH    : ORIGIN = 0x08100000, LENGTH = 1024K /* BANK_2 */
+    RAM      : ORIGIN = 0x30000000, LENGTH = 128K  /* SRAM1 */
+    RAM_D3   : ORIGIN = 0x38000000, LENGTH = 64K   /* SRAM4 */
+}
+
+SECTIONS
+{
+    .ram_d3 :
+    {
+        *(.ram_d3)
+    } > RAM_D3
+}
\ No newline at end of file
diff --git a/examples/stm32h755cm4/src/bin/blinky.rs b/examples/stm32h755cm4/src/bin/blinky.rs
new file mode 100644
index 000000000..765be5ba1
--- /dev/null
+++ b/examples/stm32h755cm4/src/bin/blinky.rs
@@ -0,0 +1,26 @@
+#![no_std]
+#![no_main]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::gpio::{Level, Output, Speed};
+use embassy_time::Timer;
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
+    info!("Hello World!");
+
+    let mut led = Output::new(p.PE1, Level::High, Speed::Low);
+
+    loop {
+        info!("high");
+        led.set_high();
+        Timer::after_millis(500).await;
+
+        info!("low");
+        led.set_low();
+        Timer::after_millis(500).await;
+    }
+}