TM4C129ENCPDT: uController will hang on sprintf statment

Hi,

I am trying to run a function that is otherwise tested and work very well. However if I run the function on uController. The uController will hang on the sprintf statement.

This functions is actually combining two arrays such that one array is holding a string and another array is holding HEX characters. This function works very well if I simulate on my linux machine.

char Generate_Hostname(char *header, unsigned char *MacAddr, char *GeneratedHostName)
{
    char hex_tmp[50];
    unsigned char i;
    strcpy(GeneratedHostName, header); //Copy Header of the hostname i.e. BECMS to GeneratedHostName
    for (i = 0; i < 4; i++){sprintf(&hex_tmp[i*2],"%02x", *(MacAddr+i+2));} //Convert MacAddr numbers starting from MAC_Addr[2] upto MAC_Addr[5]
    strcat(GeneratedHostName,hex_tmp);

    return 1;
}

one can try by simply copying and pasting the following code to see quickly the function itself is working

#include<stdio.h>
#include<string.h>

#define HostNameHeader "TI_Device_"


char Generate_Hostname(char *header, unsigned char *MacAddr, char *hostname)
{
    char hex_tmp[20];
    unsigned char i;
    strcpy(hostname, header);
    for (i = 0; i < 4; i++){sprintf(&hex_tmp[i*2],"%02x", *(MacAddr+i+2));}
    strcat(hostname,hex_tmp);
}

int main(void)
{
    
char hostname[50];
unsigned char  MAC_Addr[6]={0xE0,0xC0,0x01,0x00,0xAF,0x60};

Generate_Hostname(HostNameHeader,&MAC_Addr[0],hostname);
printf("\n%s",hostname);

return 0;
}

.