E complete

Cargo.toml

@@ -16,8 +16,8 @@ rtt-target = { version = "0.3.0", features = ["cortex-m"] }
 
 # panic handlers
 panic-halt = "0.2.0"
-panic-semihosting = "0.5.6"
-panic-rtt-target = { version = "0.1.1", features = ["cortex-m"] }
+#panic-semihosting = "0.5.6"
+#panic-rtt-target = { version = "0.1.1", features = ["cortex-m"] }
 
 [dependencies.stm32f4]
 version = "0.12.1"

src/main.rs

@@ -130,3 +130,15 @@ idle
 //
 // Paste the implementation here
 // [Your answer here]
+/*
+The implementation for our panic is found to be an infinite loop with a no reordering compiler fence.
+This means that it is impossible for the program to leave this point in the code. This is a halt. 
+
+#[inline(never)]
+#[panic_handler]
+fn panic(_info: &PanicInfo) -> ! {
+    loop {
+        atomic::compiler_fence(Ordering::SeqCst);
+    }
+}
+*/