Sundance SMT326v2 - Manual (Page 18)

Release Page 18 of 24 SMT326 DSP PC/ISA System User Guide
Document Name: SMT326 Ugv2.doc Original Date: 08/11/97
Product Name: SMT326 Revision Date: 08/26/99
Author: Graeme Parker – Fabio Ancona
for(delay=0;delay!=175;delay++);
while((*i2c_s1 & 0xff) != 0x81); /* printf("%02X\n",*i2c_s1 & 0xff); */
for(delay=0;delay!=175;delay++);
}
i2c_write(int data)
{
volatile int delay;
*i2c_sn = data;
for(delay=0;delay!=175;delay++);
while((*i2c_s1 & 0x80) == 0x80);
for(delay=0;delay!=175;delay++);
}
i2c_restart(int address, int setnack)
{
volatile int delay;
while((*i2c_s1 & 0x80) == 0x80);
if(setnack == 1) *i2c_s1 = 0x44;
else *i2c_s1 = 0x45;
for(delay=0;delay!=175;delay++);
*i2c_sn=address;
for(delay=0;delay!=175;delay++);
while((*i2c_s1 & 0x80) == 0x80);
for(delay=0;delay!=175;delay++);
}