From dcf89ebf7e0a16d0ccb5b8f5f9d1aa3bbbe133d4 Mon Sep 17 00:00:00 2001
From: sheepwall <a.sve@live.se>
Date: Thu, 28 Feb 2019 19:37:56 +0100
Subject: [PATCH] bare1_1
---
examples/bare1.rs | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)
diff --git a/examples/bare1.rs b/examples/bare1.rs
index 24ed553..2bf9442 100644
--- a/examples/bare1.rs
+++ b/examples/bare1.rs
@@ -13,6 +13,8 @@
extern crate panic_halt;
use cortex_m_rt::entry;
+use cortex_m::{iprintln, Peripherals};
+use cortex_m_semihosting::hprintln;
#[entry]
#[inline(never)]
@@ -20,10 +22,15 @@ fn main() -> ! {
// Prepend by `x` by _ to avoid warning (never used).
// The compiler is smart enough to figure out that
// `x` is not used in any meaningful way.
-
let mut _x = 0;
+
+ let mut p = Peripherals::take().unwrap();
+ let stim = &mut p.ITM.stim[0];
+
loop {
+ hprintln!("{}", _x).unwrap();
_x += 1;
+ iprintln!(stim, "{}", _x);
// cortex_m::asm::nop();
// cortex_m::asm::bkpt();
_x -= 1;
@@ -55,10 +62,16 @@ fn main() -> ! {
// loop, (press pause/suspend to verify this).
// what is the output in the ITM console
//
-// ** your answer here **
+// * 1
+// * 1
+// * 1
+// * ...
//
// What is the output in the semihosting (openocd) console
-// ** your answer here **
+// * 0
+// * 0
+// * 0
+// * ...
//
// Commit your answers (bare1_1)
//
--
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