Merge #99

99: impl Mutex on all shared resources r=japaric a=japaric

document how to write generic code that operates on resources

Co-authored-by: Jorge Aparicio <jorge@japaric.io>

1 files changed, 3 insertions, 13 deletions

diff --git a/examples/static.rs b/examples/static.rs
index 3dc0e89..d40fdb1 100644
--- a/examples/static.rs
+++ b/examples/static.rs
@@ -7,20 +7,10 @@
 
 extern crate panic_semihosting;
 
-use cortex_m_semihosting::debug;
+use cortex_m_semihosting::{debug, hprintln};
 use lm3s6965::Interrupt;
 use rtfm::app;
 
-macro_rules! println {
-    ($($tt:tt)*) => {
-        if let Ok(mut stdout) = cortex_m_semihosting::hio::hstdout() {
-            use core::fmt::Write;
-
-            writeln!(stdout, $($tt)*).ok();
-        }
-    };
-}
-
 #[app(device = lm3s6965)]
 const APP: () = {
     static KEY: u32 = ();
@@ -35,13 +25,13 @@ const APP: () = {
 
     #[interrupt(resources = [KEY])]
     fn UART0() {
-        println!("UART0(KEY = {:#x})", resources.KEY);
+        hprintln!("UART0(KEY = {:#x})", resources.KEY).unwrap();
 
         debug::exit(debug::EXIT_SUCCESS);
     }
 
     #[interrupt(priority = 2, resources = [KEY])]
     fn UART1() {
-        println!("UART1(KEY = {:#x})", resources.KEY);
+        hprintln!("UART1(KEY = {:#x})", resources.KEY).unwrap();
     }
 };