Sundance SMT326v2 - Manual (Page 15)

Release Page 15 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
while(((temp=(*i2c_s1)&0x01))==0) {
for(i=0;i!=175;i++);
}
/*
Enable I2C mux to point to Codec 0
Set LED=5
*/
fpga+=32; /* point to control register */
*fpga=0x85;
/* Initialise Codec via I2C */
for(channel=0;channel!=8;channel++) {
*fpga=0x85+(channel<<4);
/* printf("ch %d\n",channel);*/
for(delay=0;delay!=175;delay++);
i2c_send_address(0x20,0);
i2c_write(1);
i2c_write(0x00);
i2c_stop();
i2c_send_address(0x20,0);
i2c_write(2);
i2c_write(0x00);
i2c_stop();
i2c_send_address(0x20,0);
i2c_write(3);
i2c_write( 00);
i2c_stop();
i2c_send_address(0x20,0);
i2c_write(4);
i2c_write( 00);
i2c_stop();
ctrl_byte=9;
i2c_send_address(0x20,0);
i2c_write(5);
i2c_write(ctrl_byte);
i2c_stop();
i2c_send_address(0x20,0);
i2c_write(0x80);
i2c_restart(0x21,0);
temp=*i2c_sn; /* discard 1st byte */
temp=i2c_read(1);
for(delay=0;delay!=175;delay++);
i2c_stop();