panic_fmt

.vscode/launch.json

@@ -25,8 +25,11 @@
                         "label": "Name",
                         "port": 0
                     }
-                ]
+                ],
             },
+            "postLaunchCommands": [
+                "monitor arm semihosting enable",
+            ],
             "cwd": "${workspaceRoot}",
         },
         {

Cargo.toml

@@ -33,10 +33,10 @@ version = "0.5.0"
 version = "0.3.0"
 
 [dependencies.panic-abort]
-version = "0.1.1"
+version = "0.2.0"
 
 [dependencies.panic-semihosting]
-version = "0.2.0"
+version = "0.3.0"
 
 [dependencies.stm32f40x]
 path = "../STM32F40x"

examples/hello.rs

 //! Prints "Hello, world!" on the OpenOCD console using semihosting
 //!
 //! ---
-
+#![feature(panic_implementation)]
 #![no_main]
 #![no_std]
 
@@ -24,8 +24,8 @@ fn main() -> ! {
     writeln!(stdout, "Hello, world!").unwrap();
 
     panic!("panic");
-    loop {}
 
+    // loop {}
     // panic!("panic");
 }
 
@@ -40,3 +40,11 @@ exception!(*, default_handler);
 fn default_handler(irqn: i16) {
     panic!("Unhandled exception (IRQn = {})", irqn);
 }
+
+// use core::intrinsics;
+// use core::panic::PanicInfo;
+
+// #[panic_implementation]
+// fn panic(_info: &PanicInfo) -> ! {
+//     unsafe { intrinsics::abort() }
+// }