Changes done in ECG and BT

Dependencies:   SDFileSystem ds3231 eeprom_Nikita mbed testUniGraphic_150217

Fork of merged_code2_20sept_2017_4th_oct_2017 by nikita teggi

Revision:
36:00d96aa14658
Parent:
20:7c64e6ecad76
--- a/ec_bp.cpp	Sat Jul 29 10:38:05 2017 +0000
+++ b/ec_bp.cpp	Sat Jul 29 11:23:19 2017 +0000
@@ -329,9 +329,9 @@
    ADS_START = 1; 
   
   } 
-int readvalue()
+uint32_t readvalue()
   {
-      int concatenate_value;
+      uint32_t concatenate_value;
       while(DRDY_BAR);
     doWrite() ;
     concatenate_value = ((value4<< 16)|(value5 <<8) |(value6));