public byte ReceiveByte(bool ACK)
{
// Clock in one data byte
MpsseCommand.BytesInOnPlusEdgeWithMsbFirst(1);
_mpsse.Enqueue(CommandCode.BytesInOnPlusEdgeWithMsbFirst, 0x00, 0x00);
// clock out one bit as ack/nak bit
var ack = ACK ? 0x00 : 0xFF;
_mpsse.Enqueue(CommandCode.BitsOutOnMinusEdgeWithMsbFirst, 0x00, (byte)ack);
// I2C lines back to idle state
_mpsse.AdBusValue.SetBit(1).UnsetBit(0);
_mpsse.AdBusDirection.SetBit(1).SetBit(1);
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
// This command then tells the MPSSE to send any results gathered back immediately
_mpsse.Enqueue(MpsseCommand.SendImmediate());
// Execute
_mpsse.ExecuteBuffer();
// Result
var result = _mpsse.read(1);
return(result[0]);
}
public void Stop()
{
_mpsse.AdBusDirection.SetBit(1).SetBit(0);
_mpsse.AdBusValue.UnsetBit(1).UnsetBit(0);
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.AdBusValue.SetBit(0);
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.AdBusValue.SetBit(1);
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
// Execute
_mpsse.ExecuteBuffer();
}
public bool SendDeviceAddrAndCheckACK(byte address, bool read)
{
// Address
address <<= 1;
if (read)
{
address |= 0x01;
}
_mpsse.Enqueue(MpsseCommand.BytesOutOnMinusEdgeWithMsbFirst(new[] { address }));
// Put line back to idle (data released, clock pulled low)
_mpsse.AdBusValue.SetBit(1).UnsetBit(0);
_mpsse.AdBusDirection.SetBit(1).SetBit(1);
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
// CLOCK IN ACK
_mpsse.Enqueue(MpsseCommand.BitsInOnPlusEdgeWithMsbFirst(1));
// Send off the commands
_mpsse.Enqueue(MpsseCommand.SendImmediate());
// Execute
_mpsse.ExecuteBuffer();
// Result
var ack = _mpsse.read(1);
return((ack[0] & 0x01) == 0);
}
public Gpio(MpsseDevice mpsse)
{
_mpsse = mpsse;
_mpsse.AdBusDirection.Mask(false, false, true, true, true, null, null, null);
_mpsse.AdBusValue.Set((byte)0x0);
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.ExecuteBuffer();
}
public I2cBus(MpsseDevice mpsse)
{
_mpsse = mpsse;
_mpsse.Enqueue(MpsseCommand.DisableClkDivideBy5());
_mpsse.Enqueue(MpsseCommand.TurnOffAdaptiveClocking());
_mpsse.Enqueue(MpsseCommand.Enable3PhaseDataClocking());
_mpsse.Enqueue(MpsseCommand.SetClkDivisor(mpsse.ClkDivisor));
_mpsse.Enqueue(MpsseCommand.DisconnectTdiTdoLoopback());
_mpsse.Enqueue(MpsseCommand.SetIoToOnlyDriveOn0andTristateOn1(FtdiPin.DO | FtdiPin.DI | FtdiPin.CK, FtdiPin.None));
_mpsse.AdBusDirection.SetBit(0).SetBit(1);
_mpsse.AdBusValue.SetBit(0).SetBit(1);
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.ExecuteBuffer();
}
public bool SendBytes(byte[] DataByteToSend)
{
// clock data byte out
_mpsse.Enqueue(MpsseCommand.BytesOutOnMinusEdgeWithMsbFirst(DataByteToSend));
// Put line back to idle (data released, clock pulled low)
_mpsse.AdBusValue.SetBit(1).UnsetBit(0);
_mpsse.AdBusDirection.SetBit(1).SetBit(1);
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
// CLOCK IN ACK
_mpsse.Enqueue(MpsseCommand.BitsInOnPlusEdgeWithMsbFirst(1));
// Send off the commands
_mpsse.Enqueue(MpsseCommand.SendImmediate());
// Execute
_mpsse.ExecuteBuffer();
// Result
var ack = _mpsse.read(1);
return((ack[0] & 0x01) == 0);
}
public void SetLowGpio()
{
_mpsse.Enqueue(MpsseCommand.SetDataBitsLowByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
_mpsse.ExecuteBuffer();
}