6 files changed, 594 insertions(+), 0 deletions(-)

A .cargo/config
A .gitignore
A Cargo.lock
A Cargo.toml
A memory.x
A src/lib.rs

@@ 1,14 @@
+[target.thumbv7m-none-eabi]
+runner = 'probe-run --chip STM32F103C8'
+rustflags = [
+  "-C", "linker=flip-link",
+  "-C", "link-arg=-Tlink.x",
+  "-C", "link-arg=-Tdefmt.x",
+]
+
+[build]
+target = "thumbv7m-none-eabi"
+
+[alias]
+rb = "run --bin"
+rrb = "run --release --bin"

@@ 1,1 @@
+/target

@@ 1,451 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
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+name = "bare-metal"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5deb64efa5bd81e31fcd1938615a6d98c82eafcbcd787162b6f63b91d6bac5b3"
+dependencies = [
+ "rustc_version",
+]
+
+[[package]]
+name = "bare-metal"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "embedded-alloc",
+ "embedded-hal",
+ "fugit",
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+ "nb 1.1.0",
+ "panic-probe",
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+ "embedded-hal",
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+dependencies = [
+ "vcell",
+]

@@ 1,52 @@
+[package]
+name = "simple_clock"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+harness = false
+
+[dependencies]
+cortex-m = { version = "0.7.7", features = ["critical-section-single-core"] }
+cortex-m-rt = "0.7.3"
+critical-section = "1.1.1"
+embedded-alloc = "0.5.0"
+embedded-hal = "0.2.7"
+fugit = "0.3.7"
+libm = "0.2.7"
+nb = "1.1.0"
+stm32f1xx-hal = { version = "0.10.0", git = "https://github.com/Rutherther/stm32f1xx-hal", features = ["rt", "stm32f103", "medium"] }
+defmt = "0.3"
+defmt-rtt = "0.4"
+panic-probe = { version = "0.3.1", features = ["print-defmt"] }
+
+[dev-dependencies]
+defmt-test = "0.3"
+
+# cargo build/run
+[profile.dev]
+codegen-units = 1
+debug = 2
+debug-assertions = true # <-
+incremental = false
+opt-level = 'z'         # <-
+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  # <-

@@ 1,6 @@
+/* Linker script for the STM32F103C8T6 */
+MEMORY
+{
+  FLASH : ORIGIN = 0x08000000, LENGTH = 64K 
+  RAM : ORIGIN = 0x20000000, LENGTH = 20K
+}

@@ 1,70 @@
+#![no_main]
+#![no_std]
+
+use defmt_rtt as _; // global logger
+
+use embedded_alloc::Heap;
+use stm32f1xx_hal::prelude::*;
+
+use panic_probe as _;
+
+pub mod brightness_manager;
+pub mod button;
+pub mod calendar;
+pub mod clock_app;
+pub mod clock_display;
+pub mod clock_display_viewer;
+pub mod clock_state;
+pub mod count_down;
+pub mod display;
+pub mod display_view;
+pub mod linear_interpolation;
+pub mod number_digits;
+pub mod seven_segments;
+
+extern crate alloc;
+
+#[global_allocator]
+static HEAP: Heap = Heap::empty();
+
+// same panicking *behavior* as `panic-probe` but doesn't print a panic message
+// this prevents the panic message being printed *twice* when `defmt::panic` is invoked
+#[defmt::panic_handler]
+fn panic() -> ! {
+    cortex_m::asm::udf()
+}
+
+/// Terminates the application and makes `probe-run` exit with exit-code = 0
+pub fn exit() -> ! {
+    loop {
+        cortex_m::asm::bkpt();
+    }
+}
+
+#[cfg(test)]
+#[defmt_test::tests]
+mod unit_tests {
+    use crate::linear_interpolation::{LinearInterpolation, Point};
+    use defmt::assert_eq;
+
+    #[init]
+    fn init() {
+        use core::mem::MaybeUninit;
+        const HEAP_SIZE: usize = 512;
+        static mut HEAP_MEM: [MaybeUninit<u8>; HEAP_SIZE] = [MaybeUninit::uninit(); HEAP_SIZE];
+        unsafe { crate::HEAP.init(HEAP_MEM.as_ptr() as usize, HEAP_SIZE) }
+    }
+
+    #[test]
+    fn interpolation() {
+        let li = LinearInterpolation::new(alloc::vec![
+            Point::new(0, 0xFFFF - 12000),
+            Point::new(100, 0xFFFF - 3000),
+        ]);
+
+        assert_eq!(li.interpolate(0).unwrap(), 0xFFFF - 12000);
+        assert_eq!(li.interpolate(50).unwrap(), 0xFFFF - 7500);
+        assert_eq!(li.interpolate(90).unwrap(), 0xFFFF - 3000 - 900);
+        assert_eq!(li.interpolate(100).unwrap(), 0xFFFF - 3000);
+    }
+}