protected override ushort Read(Stm32Command command, ushort data, bool dataAvailable)
{
if (_disposed)
{
throw new ObjectDisposedException(Strings.Message_3);
}
Span <byte> writeBuffer;
Span <byte> readBuffer = new byte[2];
if (dataAvailable)
{
writeBuffer = new byte[3];
Unsafe.As <byte, Stm32Command>(ref writeBuffer[0]) = command;
Unsafe.As <byte, ushort>(ref writeBuffer[1]) = data;
}
else
{
writeBuffer = new byte[1];
Unsafe.As <byte, Stm32Command>(ref writeBuffer[0]) = command;
}
_gpioExpander.WriteRead(writeBuffer, readBuffer);
return(MemoryMarshal.Read <ushort>(readBuffer));
}
protected override void Write(Stm32Command command, ushort data, bool dataAvailable)
{
if (_disposed)
{
throw new ObjectDisposedException(Strings.Message_3);
}
Span <byte> writeBuffer;
if (dataAvailable)
{
writeBuffer = new byte[3];
Unsafe.As <byte, Stm32Command>(ref writeBuffer[0]) = command;
Unsafe.As <byte, ushort>(ref writeBuffer[1]) = data;
}
else
{
writeBuffer = new byte[1];
Unsafe.As <byte, Stm32Command>(ref writeBuffer[0]) = command;
}
_gpioExpander.Write(writeBuffer);
}
protected override ushort Read(Stm32Command command, ushort data, bool dataAvailable)
{
if (dataAvailable)
{
_gpioExpander.WriteAddressWord(Unsafe.As <Stm32Command, byte>(ref command), data);
return(_gpioExpander.ReadAddressWord(Unsafe.As <Stm32Command, byte>(ref command)));
}
return(_gpioExpander.ReadAddressWord(Unsafe.As <Stm32Command, byte>(ref command)));
}
protected override void Write(Stm32Command command, ushort data, bool dataAvailable)
{
if (dataAvailable)
{
_gpioExpander.WriteAddressWord(Unsafe.As <Stm32Command, byte>(ref command), data);
}
else
{
_gpioExpander.Write(Unsafe.As <Stm32Command, byte>(ref command));
}
}
