From ea96af4d53cbb8c9a4e393102df2aeb746f14d87 Mon Sep 17 00:00:00 2001
From: Hauke Petersen <hauke.petersen@fu-berlin.de>
Date: Fri, 15 Aug 2014 10:38:34 +0200
Subject: [PATCH] cpu/stm32f3: let LD3 blink on hardFault

---
 cpu/stm32f0/startup.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/cpu/stm32f0/startup.c b/cpu/stm32f0/startup.c
index d29d1ae69d..f696c15c0f 100644
--- a/cpu/stm32f0/startup.c
+++ b/cpu/stm32f0/startup.c
@@ -19,7 +19,7 @@
  */
 
 #include <stdint.h>
-
+#include "board.h"
 
 /**
  * memory markers as defined in the linker script
@@ -109,7 +109,12 @@ void isr_bus_fault(void)
 
 void isr_usage_fault(void)
 {
-    while (1) {asm ("nop");}
+    while (1) {
+        for (int i = 0; i < 250000; i++) {
+            asm ("nop");
+        }
+        LD4_TOGGLE;
+    }
 }
 
 /* Cortex-M specific interrupt vectors */