//
private void Append(bool isCommand, params byte[] data)
{
//add I2C control flag when operation changed
if (data == null)
{
return;
}
bool needI2CCtrlFlag = _busType == BusTypes.I2C;
TransmissionData.TransmissionDataTypes currType = isCommand ? TransmissionData.TransmissionDataTypes.Command : TransmissionData.TransmissionDataTypes.Data;
if (_lastData == null)
{
//first data
_lastData = new TransmissionData(currType);
needI2CCtrlFlag = needI2CCtrlFlag && true;
}
else if (_lastData.Type != currType)
{
//data type changed
_dataQueue.Enqueue(_lastData);
_lastData = new TransmissionData(currType);
needI2CCtrlFlag = needI2CCtrlFlag && true;
}
else
{
//same type as previous
needI2CCtrlFlag = false;
}
byte[] oriData = _lastData.Data;
int oriSize = oriData.Length;
int newSize = oriSize + data.Length + (needI2CCtrlFlag ? 1 : 0);
//extend array
Array.Resize(ref oriData, newSize);
if (needI2CCtrlFlag)
{
//add I2C control flag
oriData[oriSize++] = isCommand ? SSD1603.I2CTransmissionControlFlags.Command : SSD1603.I2CTransmissionControlFlags.Data;
}
//append data
foreach (byte s in data)
{
oriData[oriSize++] = s;
}
_lastData.Data = oriData;
}
public bool Send()
{
if (!Initialized)
{
return(false);
}
if (_lastData == null)
{
return(false);
}
try
{
//queue the last data
_dataQueue.Enqueue(_lastData);
_lastData = null;
foreach (TransmissionData td in _dataQueue)
{
if (_busType == BusTypes.I2C)
{
_i2cDevic.Write(td.Data);
}
else if (_busType == BusTypes.SPI)
{
_pinCmdData.Write(td.Type == TransmissionData.TransmissionDataTypes.Command ? GpioPinValue.Low : GpioPinValue.High);
_spiDevice.Write(td.Data);
}
}
return(true);
}
catch (Exception ex)
{
Debug.WriteLine(string.Format("Failed to send data to {0} device", _busType), ex.Message);
return(false);
}
finally
{
Empty();
}
}
//
private void Append(bool isCommand, params byte[] data)
{
//add I2C control flag when operation changed
if (data == null)
{
return;
}
bool needI2CCtrlFlag = _busType == BusTypes.I2C;
TransmissionData.TransmissionDataTypes currType = isCommand ? TransmissionData.TransmissionDataTypes.Command : TransmissionData.TransmissionDataTypes.Data;
if (_lastData == null)
{
//first data
_lastData = new TransmissionData(currType);
needI2CCtrlFlag = needI2CCtrlFlag && true;
}
else if (_lastData.Type != currType)
{
//data type changed
_dataQueue.Enqueue(_lastData);
_lastData = new TransmissionData(currType);
needI2CCtrlFlag = needI2CCtrlFlag && true;
}
else
{
//same type as previous
needI2CCtrlFlag = false;
}
byte[] oriData = _lastData.Data;
int oriSize = oriData.Length;
int newSize = oriSize + data.Length + (needI2CCtrlFlag ? 1 : 0);
//extend array
Array.Resize(ref oriData, newSize);
if (needI2CCtrlFlag)
{
//add I2C control flag
oriData[oriSize++] = isCommand ? SSD1603.I2CTransmissionControlFlags.Command : SSD1603.I2CTransmissionControlFlags.Data;
}
//append data
foreach (byte s in data)
{
oriData[oriSize++] = s;
}
_lastData.Data = oriData;
}
public void Empty()
{
_lastData = null;
_dataQueue.Clear();
}
public bool Send()
{
if (!Initialized)
{
return false;
}
if (_lastData == null)
{
return false;
}
try
{
//queue the last data
_dataQueue.Enqueue(_lastData);
_lastData = null;
foreach (TransmissionData td in _dataQueue)
{
if (_busType == BusTypes.I2C)
{
_i2cDevic.Write(td.Data);
}
else if (_busType == BusTypes.SPI)
{
_pinCmdData.Write(td.Type == TransmissionData.TransmissionDataTypes.Command ? GpioPinValue.Low : GpioPinValue.High);
_spiDevice.Write(td.Data);
}
}
return true;
}
catch (Exception ex)
{
Debug.WriteLine(string.Format("Failed to send data to {0} device", _busType), ex.Message);
return false;
}
finally
{
Empty();
}
}
public void Empty()
{
_lastData = null;
_dataQueue.Clear();
}