uint8_t distco_startMeasure()
{
i2c_size = 2;
i2c_buf[0] = I2C_TX(DISTCO_I2C_ID);
i2c_buf[1] = 0x01;
return distco_transmit();
}
uint8_t distco_stop()
{
i2c_size = 2;
i2c_buf[0] = I2C_TX(DISTCO_I2C_ID);
i2c_buf[1] = 0x00;
return distco_transmit();
}
uint8_t distco_transmitRC5(uint16_t rc5)
{
i2c_size = 4;
i2c_buf[0] = I2C_TX(DISTCO_I2C_ID);
i2c_buf[1] = 0x02;
i2c_buf[2] = HIBYTE(rc5);
i2c_buf[3] = LOBYTE(rc5);
return distco_transmit();
}
char DS1672_Zero(void)
{
char t;
char s;
I2C_Init(90,1000000);
I2C_Start();
t=I2C_TX(0xD0);
if(t!=0) {
if(t==1)
Log_Error((FARROM*)"DS1672: Zero Address NACK\r\n");
if(t==2)
Log_Error((FARROM*)"DS1672: Zero Address Timeout\r\n");
return t;
}
t=I2C_TX(1);
if(t!=0) {
if(t==1)
Log_Error((FARROM*)"DS1672: Zero Postion NACK\r\n");
if(t==2)
Log_Error((FARROM*)"DS1672: Zero Position Position Timeout\r\n");
}
for(s=0;s<6;s++)
{
t=I2C_TX(0);
if(t!=0) {
if(t==1)
Log_Error((FARROM*)"DS1672: TX NACK\r\n");
if(t==2)
Log_Error((FARROM*)"DS1672: TX Timeout\r\n");
}
}
I2C_Stop();
}
int DS1672_GetNextByte(void)
{
int t;
I2C_Init(100,1000000);
I2C_Start();
t=I2C_TX(DS1672_READ_ADDRESS);
if(t!=0) {
Log_Error((FARROM*)"DS1672: GetNextByte Error sending Address\r\n");
return -1;
}
t=I2C_RX();
if(t==-1) {
Log_Error((FARROM*)"DS1672: GetNextByte Error receiving byte\r\n");
return -1;
}
I2C_NACK();
I2C_Stop();
return t;
}
unsigned long DS1672_Value(void)
{
unsigned long value;
int t;
unsigned long v;
I2C_Init(100,1000000);
I2C_Start();
t=I2C_TX(0xD1);
if(t!=0) return 0xffffffff;
t=I2C_RX();
if(t==-1) return 0xffffffff;
value=t;
I2C_ACK();
t=I2C_RX();
if(t==-1) return 0xffffffff;
v = t;
value+=v<<8;
I2C_ACK();
t=I2C_RX();
if(t==-1) return 0xffffffff;
v = t;
value+=v<<16;
I2C_ACK();
t=I2C_RX();
if(t==-1) return 0xffffffff;
v = t;
value+=v<<24;
I2C_NACK();
I2C_Stop();
return value;
}
