Esempi in C# (CSharp) per NetduinoRGBLCDShield MCP23017.ReadGpioAB

Esempio n. 1

File: RGBLCDShield.cs Progetto: wwkkww1983/ScaleIndicatorPrinter

        private void Write4Bits(int value)
        {
            ushort gpio = mcp23017.ReadGpioAB();

            for (int i = 0; i < 4; i++)
            {
                gpio &= (ushort)(~(1 << dataPins[i]));
                gpio |= (ushort)(((value >> i) & 0x01) << dataPins[i]);
            }

            mcp23017.WriteGpioAB(gpio);

            gpio |= (ushort)(1 << enablePin);
            mcp23017.WriteGpioAB(gpio);

            gpio &= (ushort)((~(1 << enablePin)) & 0xFFFF); // who promotes to int on bit negation?!?
            mcp23017.WriteGpioAB(gpio);
        }