Exemplo n.º 1
0
        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]);
        }
Exemplo n.º 2
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();
        }
Exemplo n.º 3
0
        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);
        }
Exemplo n.º 4
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();
        }
Exemplo n.º 5
0
        public byte GetLowGpio()
        {
            _mpsse.Enqueue(MpsseCommand.ReadDataBitsLowByte());
            _mpsse.ExecuteBuffer();
            // Result
            var result = _mpsse.read(1);

            return(result[0]);
        }
Exemplo n.º 6
0
        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();
        }
Exemplo n.º 7
0
        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);
        }
Exemplo n.º 8
0
 public void SetHighGpio()
 {
     _mpsse.Enqueue(MpsseCommand.SetDataBitsHighByte(_mpsse.AdBusValue, _mpsse.AdBusDirection));
     _mpsse.ExecuteBuffer();
 }