private static extern ResultCode GpioCfgClockUnmanaged(uint microSecs, CpuPeripheral peripheral, uint configSource);
/// <summary>
/// Configures pigpio to use a particular sample rate timed by a specified
/// peripheral.
///
/// This function is only effective if called before <see cref="GpioInitialise"/>.
///
/// The timings are provided by the specified peripheral (PWM or PCM).
///
/// The default setting is 5 microseconds using the PCM peripheral.
///
/// The approximate CPU percentage used for each sample rate is:
///
/// A sample rate of 5 microseconds seeems to be the sweet spot.
/// </summary>
/// <remarks>
/// sample cpu
/// rate %
///
/// 1 25
/// 2 16
/// 4 11
/// 5 10
/// 8 15
/// 10 14.
/// </remarks>
/// <param name="microSecs">1, 2, 4, 5, 8, 10.</param>
/// <param name="peripheral">0 (PWM), 1 (PCM).</param>
/// <returns>The result code.</returns>
public static ResultCode GpioCfgClock(uint microSecs, CpuPeripheral peripheral)
{
return(GpioCfgClockUnmanaged(microSecs, peripheral, 0));
}
