// WriteGlobalRegister sets the value of one of our network chip's internal registers
void WriteGlobalRegister(AX88796CRegister registerAddress, UInt16 value)
{
lock (_spiLock)
{
// WriteBuffer byte 0 [Opcode]: WriteGlobalRegister
_writeGlobalRegister_WriteBuffer[0] = (byte)AX88796COpcode.WriteGlobalRegister;
// WriteBuffer byte 1 [Address]: register address
_writeGlobalRegister_WriteBuffer[1] = (byte)registerAddress;
// WriteBuffer bytes 2-3: data
_writeGlobalRegister_WriteBuffer[2] = (byte)(value & 0xFF);
_writeGlobalRegister_WriteBuffer[3] = (byte)((value >> 8) & 0xFF);
_chipSelectPin.Write(_chipSelectActiveLevel);
_spi.Write(_writeGlobalRegister_WriteBuffer);
_chipSelectPin.Write(!_chipSelectActiveLevel);
}
}
// ReadGlobalRegister retrieves the value of one of our network chip's internal registers
UInt16 ReadGlobalRegister(AX88796CRegister registerAddress)
{
lock (_spiLock)
{
// WriteBuffer byte 0 [Opcode]: ReadGlobalRegister
// WriteBuffer byte 1 [Address]: register address
_readGlobalRegister_WriteBuffer[0] = (byte)AX88796COpcode.ReadGlobalRegister;
_readGlobalRegister_WriteBuffer[1] = (byte)registerAddress;
// WriteBuffer bytes 2-3: dummy data
// write our ReadGlobalRegister command and retrieve the register data
_chipSelectPin.Write(_chipSelectActiveLevel);
_spi.WriteRead(_readGlobalRegister_WriteBuffer, _readGlobalRegister_ReadBuffer, 4);
_chipSelectPin.Write(!_chipSelectActiveLevel);
// return the register data as a UInt16
return((UInt16)(_readGlobalRegister_ReadBuffer[0] + ((UInt16)_readGlobalRegister_ReadBuffer[1] << 8)));
}
}
// WriteGlobalRegister sets the value of one of our network chip's internal registers
void WriteGlobalRegister(AX88796CRegister registerAddress, UInt16 value)
{
lock (_spiLock)
{
// WriteBuffer byte 0 [Opcode]: WriteGlobalRegister
_writeGlobalRegister_WriteBuffer[0] = (byte)AX88796COpcode.WriteGlobalRegister;
// WriteBuffer byte 1 [Address]: register address
_writeGlobalRegister_WriteBuffer[1] = (byte)registerAddress;
// WriteBuffer bytes 2-3: data
_writeGlobalRegister_WriteBuffer[2] = (byte)(value & 0xFF);
_writeGlobalRegister_WriteBuffer[3] = (byte)((value >> 8) & 0xFF);
_chipSelectPin.Write(_chipSelectActiveLevel);
_spi.Write(_writeGlobalRegister_WriteBuffer);
_chipSelectPin.Write(!_chipSelectActiveLevel);
}
}
// ReadGlobalRegister retrieves the value of one of our network chip's internal registers
UInt16 ReadGlobalRegister(AX88796CRegister registerAddress)
{
lock (_spiLock)
{
// WriteBuffer byte 0 [Opcode]: ReadGlobalRegister
// WriteBuffer byte 1 [Address]: register address
_readGlobalRegister_WriteBuffer[0] = (byte)AX88796COpcode.ReadGlobalRegister;
_readGlobalRegister_WriteBuffer[1] = (byte)registerAddress;
// WriteBuffer bytes 2-3: dummy data
// write our ReadGlobalRegister command and retrieve the register data
_chipSelectPin.Write(_chipSelectActiveLevel);
_spi.WriteRead(_readGlobalRegister_WriteBuffer, _readGlobalRegister_ReadBuffer, 4);
_chipSelectPin.Write(!_chipSelectActiveLevel);
// return the register data as a UInt16
return (UInt16)(_readGlobalRegister_ReadBuffer[0] + ((UInt16)_readGlobalRegister_ReadBuffer[1] << 8));
}
}
