public void Read(byte[] buffer)
{
int sizeTransfered = 0;
var result = LibMpsseI2C.I2C_DeviceRead(
_handle, _deviceAddress,
buffer.Length, buffer, out sizeTransfered, FtI2CTransferOptions.StartBit);
CheckResult(result);
}
public byte[] Read(int sizeToTransfer)
{
byte[] buffer = new byte[1];
int sizeTransfered = 0;
var result = LibMpsseI2C.I2C_DeviceRead(
_handle, _deviceAddress,
sizeToTransfer, buffer, out sizeTransfered, FtI2CTransferOptions.StartBit);
CheckResult(result);
return(buffer);
}
public bool SetGPIOOn(byte pin)
{
if (_handle == IntPtr.Zero)
{
return(false);
}
_gpo = (byte)(_gpo | (byte)(1 << pin));
lock (_lock)
{
var status = LibMpsseI2C.FT_WriteGPIO(_handle, _direction, _gpo);
CheckResult(status);
}
return(true);
}
void InitLibAndHandle()
{
FtResult result;
if (_handle != IntPtr.Zero)
{
return;
}
LibMpsse.Init();
var num_channels = 0;
var channels = LibMpsseI2C.I2C_GetNumChannels(out num_channels);
CheckResult(channels);
//if (num_channels > 0)
//{
// for (var i = 0; i < num_channels; i++)
// {
// FtDeviceInfo cInfo;
// var channelInfoStatus = LibMpsseI2C.I2C_GetChannelInfo(i, out cInfo);
// CheckResult(channelInfoStatus);
// Debug.WriteLine($"Flags: {cInfo.Flags}");
// Debug.WriteLine($"Type: {cInfo.Type}");
// Debug.WriteLine($"ID: {cInfo.ID}");
// Debug.WriteLine($"LocId: {cInfo.LocId}");
// Debug.WriteLine($"SerialNumber: {cInfo.SerialNumber}");
// Debug.WriteLine($"Description: {cInfo.Description}");
// Debug.WriteLine($"ftHandle: {cInfo.ftHandle}");
// }
//}
result = LibMpsseI2C.I2C_OpenChannel(_i2cConfig.ChannelIndex, out _handle);
CheckResult(result);
if (_handle == IntPtr.Zero)
{
throw new I2CChannelNotConnectedException(FtResult.InvalidHandle);
}
result = LibMpsseI2C.I2C_InitChannel(_handle, ref _cfg);
CheckResult(result);
_currentGlobalConfig = _cfg;
}
public bool ReadGPIO(byte pin, out bool value)
{
if (_handle == IntPtr.Zero)
{
value = false;
return(false);
}
lock (_lock)
{
int valTest;
var status = LibMpsseI2C.FT_ReadGPIO(_handle, out valTest);
var valShift = (valTest >> pin) & 1;
value = valShift == 1;
CheckResult(status);
}
return(true);
}
//Parts of this code are from http://www.chd.at/sites/default/files/files/FTDI.cs
//pin = pin number; dir = 0:=input; 1:=output
public bool SetGPIODirection(byte pin, byte dir)
{
if (_handle == IntPtr.Zero)
{
return(false);
}
if (dir == 1)
{
_direction |= (byte)(1 << pin);
}
else
{
_direction &= ((byte)~(1 << pin));
}
_gpo &= ((byte)~(1 << pin));
lock (_lock)
{
var status = LibMpsseI2C.FT_WriteGPIO(_handle, _direction, _gpo);
CheckResult(status);
}
return(true);
}
public FtResult Read(byte[] buffer, int sizeToTransfer, out int sizeTransfered, FtI2CTransferOptions options)
{
//EnforceRightConfiguration();
return(LibMpsseI2C.I2C_DeviceRead(_handle, _deviceAddress, sizeToTransfer, buffer, out sizeTransfered, options));
}
public FtResult Write(byte[] buffer, int sizeToTransfer, out int sizeTransfered, FtI2CTransferOptions options)
{
return(LibMpsseI2C.I2C_DeviceWrite(_handle, _deviceAddress, sizeToTransfer, buffer, out sizeTransfered, options));
}
