From 5c272093917b4c2122ff3030ed304857c3c18b2c Mon Sep 17 00:00:00 2001
From: Carson Swoveland <sciencedude2003@gmail.com>
Date: Thu, 8 Feb 2024 11:08:55 -0500
Subject: [PATCH] Initial commit

---
 .cargo/config.toml |  4 ++--
 .gitignore         |  3 ++-
 Cargo.toml         |  4 ++--
 memory.x           | 23 +++++++++++++++++++++++
 src/bin/minimal.rs | 17 +++++++++++------
 src/lib.rs         |  2 +-
 6 files changed, 41 insertions(+), 12 deletions(-)
 create mode 100644 memory.x

diff --git a/.cargo/config.toml b/.cargo/config.toml
index da541f4..f3529af 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -1,6 +1,6 @@
 [target.'cfg(all(target_arch = "arm", target_os = "none"))']
 # TODO(2) replace `$CHIP` with your chip's name (see `probe-rs chip list` output)
-runner = "probe-rs run --chip $CHIP"
+runner = "probe-rs run --chip STM32L412KBUx"
 rustflags = [
   "-C", "linker=flip-link",
   "-C", "link-arg=-Tlink.x",
@@ -17,7 +17,7 @@ rustflags = [
 # target = "thumbv6m-none-eabi"    # Cortex-M0 and Cortex-M0+
 # target = "thumbv7m-none-eabi"    # Cortex-M3
 # target = "thumbv7em-none-eabi"   # Cortex-M4 and Cortex-M7 (no FPU)
-# target = "thumbv7em-none-eabihf" # Cortex-M4F and Cortex-M7F (with FPU)
+target = "thumbv7em-none-eabihf" # Cortex-M4F and Cortex-M7F (with FPU)
 
 [alias]
 rb = "run --bin"
diff --git a/.gitignore b/.gitignore
index 869df07..ad2f0ff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /target
-Cargo.lock
\ No newline at end of file
+Cargo.lock
+.DS_Store
\ No newline at end of file
diff --git a/Cargo.toml b/Cargo.toml
index 67fa538..83ccbd5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,9 +10,9 @@ defmt = { version = "0.3", features = ["encoding-rzcobs"] }
 defmt-brtt = { version = "0.1", default-features = false, features = ["rtt"] }
 panic-probe = { version = "0.3", features = ["print-defmt"] }
 # TODO(4) Select the correct rtic backend
-rtic = { version = "2.0.0", features = [ "$RTIC_BACKEND" ] }
+rtic = { version = "2.0.0", features = [ "thumbv7-backend" ] }
 # TODO(5) Add hal as dependency
-some-hal = "1.2.3"
+stm32l4xx-hal = { version = "0.7.1", features = ["stm32l442"] }
 # TODO add a monotonic if you use scheduling
 # rtic-monotonics = { version = "1.0.0", features = [ "cortex-m-systick" ]}
 
diff --git a/memory.x b/memory.x
new file mode 100644
index 0000000..fdf940d
--- /dev/null
+++ b/memory.x
@@ -0,0 +1,23 @@
+MEMORY
+{
+  /* NOTE K = KiBi = 1024 bytes */
+  /* TODO Adjust these memory regions to match your device memory layout */
+  FLASH : ORIGIN = 0x8000000, LENGTH = 128K
+  RAM : ORIGIN = 0x20000000, LENGTH = 32K
+}
+
+/* This is where the call stack will be allocated. */
+/* The stack is of the full descending type. */
+/* You may want to use this variable to locate the call stack and static
+   variables in different memory regions. Below is shown the default value */
+/* _stack_start = ORIGIN(RAM) + LENGTH(RAM); */
+
+/* You can use this symbol to customize the location of the .text section */
+/* If omitted the .text section will be placed right after the .vector_table
+   section */
+/* This is required only on microcontrollers that store some configuration right
+   after the vector table */
+/* _stext = ORIGIN(FLASH) + 0x400; */
+
+/* Size of the heap (in bytes) */
+/* _heap_size = 1024; */
diff --git a/src/bin/minimal.rs b/src/bin/minimal.rs
index ca09ad5..372eef6 100644
--- a/src/bin/minimal.rs
+++ b/src/bin/minimal.rs
@@ -7,12 +7,16 @@ use test_app as _; // global logger + panicking-behavior + memory layout
 // TODO(7) Configure the `rtic::app` macro
 #[rtic::app(
     // TODO: Replace `some_hal::pac` with the path to the PAC
-    device = some_hal::pac,
+    device = stm32l4xx_hal::pac,
     // TODO: Replace the `FreeInterrupt1, ...` with free interrupt vectors if software tasks are used
     // You can usually find the names of the interrupt vectors in the some_hal::pac::interrupt enum.
-    dispatchers = [FreeInterrupt1, ...]
+    dispatchers = [EXTI0]
 )]
 mod app {
+    use stm32l4xx_hal as hal;
+
+    use hal::{pac, prelude::*};
+
     // Shared resources go here
     #[shared]
     struct Shared {
@@ -26,7 +30,9 @@ mod app {
     }
 
     #[init]
-    fn init(cx: init::Context) -> (Shared, Local) {
+    fn init(_cx: init::Context) -> (Shared, Local) {
+        let peripherals = pac::Peripherals::take();
+
         defmt::info!("init");
 
         // TODO setup monotonic if used
@@ -34,8 +40,7 @@ mod app {
         // let token = rtic_monotonics::create_systick_token!();
         // rtic_monotonics::systick::Systick::new(cx.core.SYST, sysclk, token);
 
-
-        task1::spawn().ok();
+        blink_led::spawn().ok();
 
         (
             Shared {
@@ -59,7 +64,7 @@ mod app {
 
     // TODO: Add tasks
     #[task(priority = 1)]
-    async fn task1(_cx: task1::Context) {
+    async fn blink_led(_cx: blink_led::Context) {
         defmt::info!("Hello from task1!");
     }
 }
diff --git a/src/lib.rs b/src/lib.rs
index 3ac29a5..43db348 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -7,7 +7,7 @@ use defmt_brtt as _; // global logger
 use panic_probe as _;
 
 // TODO(6) Import your HAL
-use some_hal as _; // memory layout
+use stm32l4xx_hal as _; // memory layout
 
 // 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