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:
67:7e07cdb1b150
Parent:
66:d7fc45e328d0
Child:
68:41da0a3ba038
--- a/main.h	Mon Nov 20 09:52:59 2017 +0000
+++ b/main.h	Mon Nov 20 12:23:52 2017 +0000
@@ -75,5 +75,8 @@
 void store_filepid(uint32_t pid);
 bool read_debug_status();
 uint32_t get_timer_debug();
+
+char *get_userpid(char user_pid[]);
+
 #endif