37 lines
1.6 KiB
C#
37 lines
1.6 KiB
C#
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namespace Unosquare.RaspberryIO.Native
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{
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using System.Runtime.InteropServices;
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public partial class WiringPi
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{
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#region WiringPi - Shift Library
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/// <summary>
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/// This shifts an 8-bit data value in with the data appearing on the dPin and the clock being sent out on the cPin.
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/// Order is either LSBFIRST or MSBFIRST. The data is sampled after the cPin goes high.
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/// (So cPin high, sample data, cPin low, repeat for 8 bits) The 8-bit value is returned by the function.
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/// </summary>
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/// <param name="dPin">The d pin.</param>
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/// <param name="cPin">The c pin.</param>
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/// <param name="order">The order.</param>
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/// <returns>The result</returns>
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[DllImport(WiringPiLibrary, EntryPoint = "shiftIn", SetLastError = true)]
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public static extern byte ShiftIn(byte dPin, byte cPin, byte order);
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/// <summary>
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/// The shifts an 8-bit data value val out with the data being sent out on dPin and the clock being sent out on the cPin.
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/// order is as above. Data is clocked out on the rising or falling edge – ie. dPin is set, then cPin is taken high then low
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/// – repeated for the 8 bits.
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/// </summary>
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/// <param name="dPin">The d pin.</param>
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/// <param name="cPin">The c pin.</param>
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/// <param name="order">The order.</param>
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/// <param name="val">The value.</param>
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[DllImport(WiringPiLibrary, EntryPoint = "shiftOut", SetLastError = true)]
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public static extern void ShiftOut(byte dPin, byte cPin, byte order, byte val);
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#endregion
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}
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}
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