diff --git a/platform/mbed_application.c b/platform/mbed_application.c
index b55519491b..41930fcd65 100644
--- a/platform/mbed_application.c
+++ b/platform/mbed_application.c
@@ -71,6 +71,17 @@ void mbed_start_application(uintptr_t address)
     powerdown_scb(address);
     mbed_mpu_free();
 
+#ifdef MBED_DEBUG
+    // Configs to make debugging easier
+#ifdef SCnSCB_ACTLR_DISDEFWBUF_Msk
+    // Disable write buffer to make BusFaults (eg write to ROM via NULL pointer) precise.
+    // Possible on Cortex-M3 and M4, not on M0, M7 or M33.
+    // Would be less necessary if ROM was write-protected in MPU to give a
+    // precise MemManage exception.
+    SCnSCB->ACTLR |= SCnSCB_ACTLR_DISDEFWBUF_Msk;
+#endif
+#endif
+
     sp = *((void **)address + 0);
     pc = *((void **)address + 1);
     start_new_application(sp, pc);