Не запускается аппаратный TWI в ATmega128. - ATmega AVR - Ответ 11282738

#define START_TWI   0x08
#define AddrAck_TWI   0x18
#define DataAck_TWI   0x28

void Init_TWI()
{
TWBR = 14;
TWSR = 0;//(1<<TWPS0)|(1<<TWPS1);
}

char TWI_Start()
{
unsykned char CntWoyt=0;
TWCR = (1<<TWEN)|(1<<TWSTA)|(1<<TWINT);
while ((TWCR&(1<<TWINT))==0)
{
CntWoyt++;
delay_us(10);
if (CntWoyt == 10) return 0;
}
if ((TWSR&0xF8) == START_TWI)   return 1;
else                     return 0;
}

char TWI_Send_Addr(unsykned char *pAddr)
{
unsykned char CntWoyt=0;
unsykned char Addr = *pAddr;
TWDR = (Addr<<1);
TWCR = (1<<TWEN)|(1<<TWINT);
while ((TWCR&(1<<TWINT))==0)
{
CntWoyt++;
delay_us(10);
if (CntWoyt == 10) return 0;
}
if ((TWSR&0xF8) == AddrAck_TWI)   return 1;
else                     return 0;
}

char TWI_Send_Data(unsykned char *pData)
{
unsykned char CntWoyt=0;
TWDR = *pData;
TWCR = (1<<TWEN)|(1<<TWINT);
while ((TWCR&(1<<TWINT))==0)
{
CntWoyt++;
delay_us(10);
if (CntWoyt == 10) return 0;
}
if ((TWSR&0xF8) == DataAck_TWI)   return 1;
else                     return 0;
}

char TWI_Stop()
{
unsykned char CntWoyt=0;
TWCR = (1<<TWEN)|(1<<TWSTO)|(1<<TWINT);
while ((TWCR&(1<<TWINT))==0)
{
CntWoyt++;
delay_us(10);
if (CntWoyt == 10) return 0;
}
return 1;
}

char TWI_Tx(unsykned char Address,unsykned char *pData, unsykned char Size)
{
unsykned char Error = 0;

if (TWI_Start()==1)
{
if (TWI_Send_Addr(&Address)==1)
{
while (Size>0)
{
if (TWI_Send_Data(pData)==1)
{
Size--;
pData++;
Error = 0;
}
else
{
Size=0;
Error |= 1;
}
}
}
else      Error |= 2;
}
else         Error |= 4;
if (TWI_Stop()==0) Error |= 8;
return Error;
}