init project

2021-07-23 17:31:28 +08:00 · 2021-07-23 17:31:28 +08:00 · 093fceb853
commit 093fceb853
6 changed files with 398 additions and 0 deletions
--- a/.cargo/config
+++ b/.cargo/config
@ -0,0 +1,8 @@
+[target.thumbv7m-none-eabi]
+runner = 'gdb-multiarch'
+rustflags = [
+  "-C", "link-arg=-Tlink.x",
+]
+
+[build]
+target = "thumbv7m-none-eabi"
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,2 @@
+/target
+/stm32f1xx-hal
--- a/Cargo.lock
+++ b/Cargo.lock
@ -0,0 +1,312 @@
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--- a/Cargo.toml
+++ b/Cargo.toml
@ -0,0 +1,18 @@
+[package]
+name = "syrostan_mcu"
+version = "0.1.0"
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+embedded-hal = "0.2.3"
+nb = "0.1.2"
+cortex-m = "0.6.2"
+cortex-m-rt = "0.6.11"
+# Panic behaviour, see https://crates.io/keywords/panic-impl for alternatives
+panic-halt = "0.2.0"
+
+[dependencies.stm32f1xx-hal]
+version = "0.6.1"
+features = ["rt", "stm32f103", "high"]
--- a/memory.x
+++ b/memory.x
@ -0,0 +1,6 @@
+/* Linker script for the STM32F103VCT6 */
+MEMORY
+{
+  FLASH : ORIGIN = 0x08000000, LENGTH = 256K
+  RAM : ORIGIN = 0x20000000, LENGTH = 48K
+}
--- a/src/main.rs
+++ b/src/main.rs
@ -0,0 +1,52 @@
+//! Blinks an LED
+//!
+//! This assumes that a LED is connected to pc0 as is the case on the blue pill board.
+//!
+//! Note: Without additional hardware, PC0 should not be used to drive an LED, see page 5.1.2 of
+//! the reference manual for an explanation. This is not an issue on the blue pill.
+
+#![deny(unsafe_code)]
+#![no_std]
+#![no_main]
+
+use panic_halt as _;
+
+use nb::block;
+
+use cortex_m_rt::entry;
+use embedded_hal::digital::v2::OutputPin;
+use stm32f1xx_hal::{pac, prelude::*, timer::Timer};
+
+#[entry]
+fn main() -> ! {
+    // Get access to the core peripherals from the cortex-m crate
+    let cp = cortex_m::Peripherals::take().unwrap();
+    // Get access to the device specific peripherals from the peripheral access crate
+    let dp = pac::Peripherals::take().unwrap();
+
+    // Take ownership over the raw flash and rcc devices and convert them into the corresponding
+    // HAL structs
+    let mut flash = dp.FLASH.constrain();
+    let mut rcc = dp.RCC.constrain();
+
+    // Freeze the configuration of all the clocks in the system and store the frozen frequencies in
+    // `clocks`
+    let clocks = rcc.cfgr.freeze(&mut flash.acr);
+
+    // Acquire the GPIOC peripheral
+    let mut gpioc = dp.GPIOC.split(&mut rcc.apb2);
+
+    // Configure gpio C pin 0 as a push-pull output. The `crl` register is passed to the function
+    // in order to configure the port. For pins 0-7, crl should be passed instead.
+    let mut led = gpioc.pc0.into_push_pull_output(&mut gpioc.crl);
+    // Configure the syst timer to trigger an update every second
+    let mut timer = Timer::syst(cp.SYST, &clocks).start_count_down(1.hz());
+
+    // Wait for the timer to trigger an update and change the state of the LED
+    loop {
+        block!(timer.wait()).unwrap();
+        led.set_high().unwrap();
+        block!(timer.wait()).unwrap();
+        led.set_low().unwrap();
+    }
+}