created separate function for hex to char

Dependencies:   SDFileSystem ds3231 eeprom_Nikita mbed testUniGraphic_150217

Fork of SS_SensePOC2P0_11Dec2017_USERPID by rashmi v

Revision:
63:76be11c4a208
Parent:
62:7d2a844ed639
Child:
64:5a76653792e8
--- a/main.cpp	Thu Nov 16 09:42:29 2017 +0000
+++ b/main.cpp	Thu Nov 16 09:51:07 2017 +0000
@@ -463,8 +463,8 @@
                 state=6;
                 eprom_write_8(30,0);
                 nstate=state;  
-                wait(2);
-                screen_main_2(pid);       
+                wait(2);                                                        //added on 16-NOV rashmi
+                screen_main_2(pid);                                             //added on 16-NOV rashmi       
                 EnableTouch();
                 break;
     
@@ -481,8 +481,8 @@
                 eprom_write_8(30,1);
                 nstate=state;
                 screen_ecg_bp();
-                wait(2);
-                screen_main_2(pid);
+                wait(2);                                                        //added on 16-NOV rashmi
+                screen_main_2(pid);                                             //added on 16-NOV rashmi
                 EnableTouch();
                 break;
              
@@ -499,8 +499,8 @@
                 state=6;
                 eprom_write_8(30,2);
                 nstate=state;
-                wait(2);
-                screen_main_2(pid); 
+                wait(2);                                                        //added on 16-NOV rashmi
+                screen_main_2(pid);                                             //added on 16-NOV rashmi 
                 EnableTouch();
                  break;