private void ComputeRateParameters(int picClockSpeed)
{
int rate;
if (Int32.TryParse(DesiredBaudRateText, out rate))
{
Rates.Clear();
Rates.Add(BaudRateCalculator.Compute(SerialDeviceType.PIC32, rate, picClockSpeed));
Rates.Add(BaudRateCalculator.Compute(SerialDeviceType.FtdiLow, rate));
Rates.Add(BaudRateCalculator.Compute(SerialDeviceType.FtdiHigh, rate));
ActualBaudRateText = String.Format("{0:F1}", Rates[0].ActualBaud);
ErrorRateText = String.Format("{0:F1}", Rates[0].PercentError);
}
}
private void PrepareSerialSpeeds(int picClockSpeed)
{
int[] desiredRates =
{
9600,
19200,
38400,
56000,
57600,
115200,
250000,
500000,
750000,
1000000
};
// create possible PIC32 UART speeds, given by
// picClockRate/(4*(num+1)) for num = 1 to 65535
SerialSpeeds.Clear();
foreach (var targetRate in desiredRates)
{
SerialSpeeds.Add(BaudRateCalculator.Compute(SerialDeviceType.PIC32, targetRate, picClockSpeed));
}
// add the rest of the speeds that hit exactly
var rate = desiredRates[desiredRates.Length - 1];
var br = BaudRateCalculator.Compute(SerialDeviceType.PIC32, rate, picClockSpeed);
var divider = Int32.Parse(br.Setting);
while (divider > 0)
{
--divider;
if ((picClockSpeed % (divider + 1)) == 0)
{
rate = BaudRateCalculator.ComputePic32BaudRateFromClockDivider(picClockSpeed, divider);
SerialSpeeds.Add(BaudRateCalculator.Compute(SerialDeviceType.PIC32, rate, picClockSpeed));
}
}
}
