Add examples folder and update dependecies

Cargo.toml

@@ -6,17 +6,17 @@ readme = "README.md"
 authors = ["Luca Zulian <lucagiuggia@gmail.com>"]
 
 [dependencies]
-cortex-m = "0.7"
-cortex-m-rt = "0.6.5"
+cortex-m = "0.7.5"
+cortex-m-rt = "0.7.1"
 panic-halt = "0.2.0"
 panic-semihosting = "0.6.0"
 cortex-m-semihosting = "0.5.0"
-stm32l4xx-hal = { version = "0.6.0", features = ["rt", "stm32l4x2"] }
+stm32l4xx-hal = { version = "0.7.1", features = ["rt", "stm32l432"] }
 nb = "1.0.0"
 
 [[bin]]
 name = "stm"
-path = "src/blink.rs"
+path = "examples/blink.rs"
 test = false
 bench = false
 

Makefile

@@ -10,7 +10,7 @@ BINARY=stm
 TARGET=thumbv7em-none-eabihf
 TARGET_FOLDER=target
 LEVEL=release
-STM_PATH=/run/media/luca/NODE_L432KC
+STM_PATH=/media/luca/NODE_L432KC
 
 EL=arm-none-eabi-readelf
 CP=arm-none-eabi-objcopy

examples/blink.rs

+//! Blinks an LED
+
+#![no_std]
+#![no_main]
+
+extern crate cortex_m;
+#[macro_use]
+extern crate cortex_m_rt as rt;
+extern crate cortex_m_semihosting as sh;
+extern crate panic_semihosting;
+extern crate stm32l4xx_hal as hal;
+
+use crate::hal::delay::Delay;
+use crate::hal::prelude::*;
+use crate::rt::entry;
+use crate::rt::ExceptionFrame;
+
+#[entry]
+fn main() -> ! {
+    let cp = cortex_m::Peripherals::take().unwrap();
+    let dp = hal::stm32::Peripherals::take().unwrap();
+
+    let mut flash = dp.FLASH.constrain();
+    let mut rcc = dp.RCC.constrain();
+    let mut pwr = dp.PWR.constrain(&mut rcc.apb1r1);
+
+    // Try a different clock configuration
+    let clocks = rcc.cfgr.hclk(4.MHz()).freeze(&mut flash.acr, &mut pwr);
+
+    let mut gpiob = dp.GPIOB.split(&mut rcc.ahb2);
+    let mut led = gpiob
+        .pb3
+        .into_push_pull_output(&mut gpiob.moder, &mut gpiob.otyper);
+
+    let mut timer = Delay::new(cp.SYST, clocks);
+    loop {
+        timer.delay_ms(1000_u32);
+        led.set_high();
+
+        timer.delay_ms(1000_u32);
+        led.set_low();
+    }
+}
+
+#[exception]
+unsafe fn HardFault(ef: &ExceptionFrame) -> ! {
+    panic!("{:#?}", ef);
+}

src/blink.rs

-#![allow(non_camel_case_types)]
-#![no_std]
-#![no_main]
-
-// Halt when the program panics.
-extern crate panic_halt;
-
-// Includes.
-use cortex_m::peripheral::syst::SystClkSource;
-use cortex_m_rt::entry;
-use stm32l4xx_hal as hal;
-use hal::prelude::*;
-// use cortex_m_semihosting::{hprintln};
-
-#[entry]
-fn main() -> ! {
-    // Set up SysTick peripheral.
-    let cmp = cortex_m::Peripherals::take().unwrap();
-    let mut syst = cmp.SYST;
-    syst.set_clock_source( SystClkSource::Core );
-    // ~1ms period; STM32F3 resets to 8MHz internal oscillator.
-    syst.set_reload( 4_000_000 );
-    syst.enable_counter();
-
-    let p = stm32l4xx_hal::pac::Peripherals::take().unwrap();
-    let mut rcc = p.RCC.constrain();
-    let mut gpioe = p.GPIOB.split( &mut rcc.ahb2 );
-    let mut ld4 = gpioe.pb3.into_push_pull_output( &mut gpioe.moder, &mut gpioe.otyper );
-
-    loop {
-        while !syst.has_wrapped() {};
-        let _ = ld4.set_high();
-
-        // hprintln!("Hello, world!").unwrap();
-
-        while !syst.has_wrapped() {};
-        let _ = ld4.set_low();
-    }
-}
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