Advantech ITA-5831 Series, User Manual

Page: 82 / 96

ITA-5831 User Manual 72
/////////////////////////////////////////////////////////////////////
BYTE check_data (W ORD addr)
{
int i;
BYTE data;
for(i = 0; i <= 6; i++)
{
data = inportb(addr);
if (data!= 0)
break;
}
return data;
}
/////////////////////////////////////////////////////////////////////
void newiodelay()
//Shorter delay
{
outportb(0xeb, 0); // IO port 0xeb No real device occupies.
Write a value to this port can realize delay function. You can also
choose other method according to the real situation.
}
/////////////////////////////////////////////////////////////////////
void moredelay()
//longerdelay
{
int i;
for (i = 0; i < 20; i++)
{
outportb(0xeb, 0); // IO port 0xeb No real device occu-
pies. Write a value to this port can realize delay function. You can
also choose other method according to the real situation.
}
}