From 0ba359bb29c0ce3c8a95e8111d05b6811f1cb2d5 Mon Sep 17 00:00:00 2001
From: Per Lindgren <per.lindgren@ltu.se>
Date: Sun, 4 Feb 2018 10:01:31 +0100
Subject: [PATCH] first working blinky (hack)
---
examples/blinky.rs | 45 +++++++++++++++
src/led.rs | 134 +++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 179 insertions(+)
create mode 100644 examples/blinky.rs
create mode 100644 src/led.rs
diff --git a/examples/blinky.rs b/examples/blinky.rs
new file mode 100644
index 0000000..2570a9e
--- /dev/null
+++ b/examples/blinky.rs
@@ -0,0 +1,45 @@
+//! Blinks an LED on the Nucleo 64
+//! Led connected to PA5
+#![deny(unsafe_code)]
+//#![deny(warnings)]
+#![no_std]
+
+extern crate cortex_m;
+extern crate stm32f4x_hal as f4;
+
+use f4::stm32f4x;
+// use f3::hal::delay::Delay;
+use f4::prelude::*;
+use f4::led::Led;
+
+fn wait(v: u32) {
+ for _ in 0..v {}
+}
+
+fn main() {
+ let cp = cortex_m::Peripherals::take().unwrap();
+ let dp = stm32f4x::Peripherals::take().unwrap();
+
+ let mut flash = dp.FLASH.constrain();
+ let mut rcc = dp.RCC.constrain();
+ let mut gpioa = dp.GPIOA.split(&mut rcc.ahb1);
+
+ // // clock configuration using the default settings (all clocks run at 8 MHz)
+ // let clocks = rcc.cfgr.freeze(&mut flash.acr);
+ // // TRY this alternate clock configuration (all clocks run at 16 MHz)
+ // // let clocks = rcc.cfgr.sysclk(16.mhz()).freeze(&mut flash.acr);
+ let mut led: Led = gpioa
+ .pa5
+ .into_push_pull_output(&mut gpioa.moder, &mut gpioa.otyper)
+ .into();
+ // let mut delay = Delay::new(cp.SYST, clocks);
+
+ loop {
+ led.on();
+ wait(10000);
+ // delay.delay_ms(1_000_u16);
+ led.off();
+ wait(10000);
+ // delay.delay_ms(1_000_u16);
+ }
+}
diff --git a/src/led.rs b/src/led.rs
new file mode 100644
index 0000000..73188bf
--- /dev/null
+++ b/src/led.rs
@@ -0,0 +1,134 @@
+//! On-board user LEDs
+
+use core::ops;
+
+use prelude::*;
+
+use gpio::gpioa::{self, PA5, PAx};
+use gpio::{Output, PushPull};
+
+/// LED
+pub type LD1 = PA5<Output<PushPull>>;
+
+// /// Array of all the user LEDs on the board
+// pub struct Leds {
+// leds: [Led; 8],
+// }
+
+// impl Leds {
+// /// Initializes all the user LEDs
+// pub fn new(mut gpioa: gpioa::Parts) -> Self {
+// let n = gpioe
+// .pe9
+// .into_push_pull_output(&mut gpioe.moder, &mut gpioe.otyper);
+// let ne = gpioe
+// .pe10
+// .into_push_pull_output(&mut gpioe.moder, &mut gpioe.otyper);
+// let e = gpioe
+// .pe11
+// .into_push_pull_output(&mut gpioe.moder, &mut gpioe.otyper);
+// let se = gpioe
+// .pe12
+// .into_push_pull_output(&mut gpioe.moder, &mut gpioe.otyper);
+// let s = gpioe
+// .pe13
+// .into_push_pull_output(&mut gpioe.moder, &mut gpioe.otyper);
+// let sw = gpioe
+// .pe14
+// .into_push_pull_output(&mut gpioe.moder, &mut gpioe.otyper);
+// let w = gpioe
+// .pe15
+// .into_push_pull_output(&mut gpioe.moder, &mut gpioe.otyper);
+// let nw = gpioe
+// .pe8
+// .into_push_pull_output(&mut gpioe.moder, &mut gpioe.otyper);
+
+// Leds {
+// leds: [
+// n.into(),
+// ne.into(),
+// e.into(),
+// se.into(),
+// s.into(),
+// sw.into(),
+// w.into(),
+// nw.into(),
+// ],
+// }
+// }
+// }
+
+// impl ops::Deref for Leds {
+// type Target = [Led];
+
+// fn deref(&self) -> &[Led] {
+// &self.leds
+// }
+// }
+
+// impl ops::DerefMut for Leds {
+// fn deref_mut(&mut self) -> &mut [Led] {
+// &mut self.leds
+// }
+// }
+
+// impl ops::Index<usize> for Leds {
+// type Output = Led;
+
+// fn index(&self, i: usize) -> &Led {
+// &self.leds[i]
+// }
+// }
+
+// impl ops::Index<Direction> for Leds {
+// type Output = Led;
+
+// fn index(&self, d: Direction) -> &Led {
+// &self.leds[d as usize]
+// }
+// }
+
+// impl ops::IndexMut<usize> for Leds {
+// fn index_mut(&mut self, i: usize) -> &mut Led {
+// &mut self.leds[i]
+// }
+// }
+
+// impl ops::IndexMut<Direction> for Leds {
+// fn index_mut(&mut self, d: Direction) -> &mut Led {
+// &mut self.leds[d as usize]
+// }
+// }
+
+/// One of the on-board user LEDs
+pub struct Led {
+ pax: PAx<Output<PushPull>>,
+}
+
+macro_rules! ctor {
+ ($($ldx:ident),+) => {
+ $(
+ impl Into<Led> for $ldx {
+ fn into(self) -> Led {
+ Led {
+ pax: self.downgrade(),
+ }
+ }
+ }
+ )+
+ }
+}
+
+ctor!(LD1);
+
+impl Led {
+ /// Turns the LED off
+ pub fn off(&mut self) {
+ self.pax.set_low()
+ }
+
+ /// Turns the LED on
+ pub fn on(&mut self) {
+ self.pax.set_high()
+ }
+}
--
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