Modify the file main.cpp for M487

Revision:
0:a67fc999dd68
diff -r 000000000000 -r a67fc999dd68 NuMaker-mbed-NuBrick/NuBrickMasterKeys.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/NuMaker-mbed-NuBrick/NuBrickMasterKeys.cpp	Fri Sep 29 05:44:02 2017 +0000
@@ -0,0 +1,41 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2016 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "NuBrickMasterKeys.h"
+
+NuBrickMasterKeys::NuBrickMasterKeys(I2C &i2c, bool debug) :
+    NuBrickMaster(i2c, NuBrick_I2CAddr_Key, debug) {
+
+    static const NuBrickField::IndexName keys_feature_field_index_name_arr[] = {
+        NuBrickField::IndexName(NuBrick_ReportDesc_FieldIndex1_Plus1, "sleep_period")
+    };
+
+    static const NuBrickField::IndexName keys_input_field_index_name_arr[] = {
+        NuBrickField::IndexName(NuBrick_ReportDesc_FieldIndex1_Plus1, "key_state")
+    };
+
+    // Add fields of feature report
+    add_feature_fields(keys_feature_field_index_name_arr,
+        sizeof (keys_feature_field_index_name_arr) / sizeof (keys_feature_field_index_name_arr[0]));
+        
+    // Add fields of input report
+    add_input_fields(keys_input_field_index_name_arr,
+        sizeof (keys_input_field_index_name_arr) / sizeof (keys_input_field_index_name_arr[0]));
+        
+    // Add fields of output report
+    
+    // No lock needed in the constructor
+
+}