code crashes accessing randomization code

Dependencies:   LoRaWAN-SX1272-Application-24-31-9sec X_NUCLEO_IKS01A1 driver_mbed_TH02 LoRaWAN-lib-v1_0_1 SX1272Lib mbed

Fork of LoRaWAN-SX1272-Application-24-31-9sec by Oleh Zvonarov

Revision:
6:dfba69760b76
Parent:
4:d49b89361b67
Child:
7:c63508d8ff9c
--- a/app/Config.h	Fri Nov 10 09:36:09 2017 +0000
+++ b/app/Config.h	Fri Nov 10 09:42:56 2017 +0000
@@ -30,7 +30,8 @@
 
 #else
 
-#define USE_BAND_915_HYBRID_BLOCK_D
+// define channel block: e.g. USE_BAND_915_HYBRID_BLOCK_A, USE_BAND_915_HYBRID_BLOCK_B ... USE_BAND_915_HYBRID_BLOCK_H etc.
+#define USE_BAND_915_HYBRID_BLOCK_A
 
 #endif
 
@@ -44,6 +45,9 @@
  */
 #define APP_TX_DUTYCYCLE                            6000000  // value in us
 
+/*!
+ * Defines the randomness in the dutycycle. 
+ */
 #define APP_TX_DUTYCYCLE_RND                        3000000
 
 /*!