/// <summary>
/// Set Transmission Power
/// </summary>
/// <param name="pga"></param>
public void SetRFGAIN(RFGAIN rfgain)
{
byte[] buff = new byte[1];
int reg1, reg2, reg10;
sensor.WriteRead(new byte[] { 0x01 }, buff);
reg1 = buff[0];
sensor.WriteRead(new byte[] { 0x02 }, buff);
reg2 = buff[0];
sensor.WriteRead(new byte[] { 0x13 }, buff);
reg10 = buff[0];
int rfgainVal = (int)rfgain & 0x0F;
reg1 = (reg1 & 0x3F) | (rfgainVal << 6);
if ((rfgainVal & 0x04) > 0)
{
reg10 |= 0x80;
}
else
{
reg10 &= ~0x80;
}
if ((rfgainVal & 0x08) > 0)
{
reg2 |= 0x40;
}
else
{
reg2 &= ~0x40;
}
if ((int)rfgain >= 8)
{
sensor.Write(new byte[] { 0x0E, 0x10 });
}
sensor.Write(new byte[] { 0x01, (byte)reg1 });
sensor.Write(new byte[] { 0x02, (byte)reg2 });
sensor.Write(new byte[] { 0x13, (byte)reg10 });
}
/// <summary>
/// Initialize KT0803L
/// </summary>
/// <param name="mhz">FM Channel ( Range from 70Mhz to 108Mhz )</param>
/// <param name="country">Region</param>
/// <param name="rfgain">Transmission Power</param>
/// <param name="pga">PGA ( Programmable Gain Amplifier ) Gain</param>
public async Task InitializeAsync(double mhz, Country country = Country.CHINA, RFGAIN rfgain = RFGAIN.RFGAIN_98_9dBuV, PGA pga = PGA.PGA_0dB)
{
var settings = new I2cConnectionSettings(KT_ADDR);
settings.BusSpeed = I2cBusSpeed.StandardMode;
var controller = await I2cController.GetDefaultAsync();
sensor = controller.GetDevice(settings);
SetChannel(mhz);
SetRFGAIN(rfgain);
SetPGA(pga);
SetPHTCNST(country);
}
