public void initTemp(I2cDevice device)
{
byte[] twoByte = new byte[2];
byte[] oneByte = new byte[1];
if (!RTI2C.Read(device, 0x2a + 0x80, twoByte))
{
var ErrorMessage = "Failed to read HTS221 temperature";
return;
}
if (!RTI2C.Read(device, 0x33 + 0x80, oneByte))
{
var ErrorMessage = "Failed to read HTS221 T1_C_8";
return;
}
var temp0 = oneByte[0];
if (!RTI2C.Read(device, 0x32 + 0x80, oneByte))
{
var ErrorMessage = "Failed to read HTS221 T0_C_8";
return;
}
byte temp1 = oneByte[0];
var T1_C_8 = (UInt16)(((UInt16)(temp1 & 0xC) << 6) | (UInt16)temp0);
var T1 = (double)T1_C_8 / 8.0;
var T0_C_8 = (UInt16)((((UInt16)temp1 & 0x3) << 8) | (UInt16)temp0);
var T0 = (double)T0_C_8 / 8.0;
if (!RTI2C.Read(device, 0x3e + 0x80, twoByte))
{
var ErrorMessage = "Failed to read HTS221 T1_OUT";
return;
}
var T1_OUT = (Int16)((((UInt16)twoByte[1]) << 8) | (UInt16)twoByte[0]);
if (!RTI2C.Read(device, 0x3c + 0x80, twoByte))
{
var ErrorMessage = "Failed to read HTS221 T0_OUT";
return;
}
var T0_OUT = (Int16)((((UInt16)twoByte[1]) << 8) | (UInt16)twoByte[0]);
mTemperature_m = (T1 - T0) / (T1_OUT - T0_OUT);
mTemperature_c = T0 - (mTemperature_m * T0_OUT);
}
public async void CallmeBaby()
{
string aqsFilter = I2cDevice.GetDeviceSelector("I2C1");
DeviceInformationCollection collection = await DeviceInformation.FindAllAsync(aqsFilter);
if (collection.Count == 0)
{
return;
}
I2cConnectionSettings settings = new I2cConnectionSettings(0x5f);
settings.BusSpeed = I2cBusSpeed.FastMode;
I2cDevice device = await I2cDevice.FromIdAsync(collection[0].Id, settings);
if (!RTI2C.Write(device, 0x20, 0x87))
{
var ErrorMessage = "Failed to set HTS221 CTRL_REG_1";
return;
}
if (!RTI2C.Write(device, 0x10, 0x1b))
{
var ErrorMessage = "Failed to set HTS221 AV_CONF";
return;
}
initTemp(device);
byte[] twoByte = new byte[2];
if (!RTI2C.Read(device, 0x2a + 0x80, twoByte))
{
var ErrorMessage = "Failed to read HTS221 temperature";
return;
}
double mTemperature = (Int16)((((UInt16)twoByte[1]) << 8) | (UInt16)twoByte[0]);
mTemperature = mTemperature * mTemperature_m + mTemperature_c;
var mTemperatureValid = true;
//double mTemperature = (Int16)((((UInt16)twoByte[1]) << 8) | (UInt16)twoByte[0]);
// mTemperature = mTemperature * mTemperature_m + mTemperature_c;
//var mTemperatureValid = true;
//var q = mTemperature;
}
