Master ()
{
int buf[4];
char pStr[25]="0x00,0xff,0xff,0x 00 ";
for(int I = 0; I<4; i++)
{
char p[3]= " ";
strncpy(p & amp; pStr[i*5+2],2);
int t 1,T2;
if(p[0]& gt; ='a ')
{
t 1 = p[0]-87;
}
else if(p[0]& gt; = ' 0 ' & amp& ampp[0]& lt; ='9')
{
t 1 = p[0]-48;
}
if(p[ 1]>='a ')
{
T2 = p[ 1]-87;
}
else if(p[ 1]& gt; = ' 0 ' & amp& ampp[ 1]& lt; ='9')
{
T2 = p[ 1]-48;
}
buf[I]= t 1 * 16+T2;
}
}