diff --git a/examples/bare2.rs b/examples/bare2.rs
index ce6acb20fb9221507961a8586a4ba8211917db1c..4a64493682c38118ff32f9ff5db68633cc1ffb56 100644
--- a/examples/bare2.rs
+++ b/examples/bare2.rs
@@ -78,18 +78,25 @@ fn main() -> ! {
 //    What is the output in the ITM console?
 //
 //    ** your answer here **
+//     Start 1298588265
+//     End 1435588355
+//     Diff 137000090
 //
 //    Rebuild and run in release mode
 //
 //    > cargo build --example bare2 --release
 //
 //    ** your answer here **
-//
+//    bare2
+//    Start 3473919707
+//    End 3477919715
+//Diff 4000008
+
 //    Compute the ratio between debug/release optimized code
 //    (the speedup).
 //
 //    ** your answer here **
-//
+//     137000090/4000008 = 34.25 times faster
 //    commit your answers (bare2_1)
 //
 // 3. *Optional
diff --git a/openocd.cfg b/openocd.cfg
index 12d6eb57be86414df319fe6c622ed716368a0f62..0ac0250e15dd358f3e63b13c7c2dddb07ec5bf3e 100644
--- a/openocd.cfg
+++ b/openocd.cfg
@@ -1,6 +1,6 @@
-source [find interface/stlink.cfg]
+#source [find interface/stlink.cfg]
 # deprecated
-# source [find interface/stlink-v2-1.cfg] 
+ source [find interface/stlink-v2-1.cfg] 
 transport select hla_swd
 
 # increase working area to 64KB