private void SendDataIntoFifo()
{
FTDI.FT_STATUS status;
uint txQueue = 0;
// check buffer
status = ftHandle.GetTxBytesWaiting(ref txQueue);
if (txQueue == 0)
{
// write data
uint written = 0;
ftHandle.Write(data, data.Length, ref written);
if (written == 0)
{
MessageBox.Show("No data have been written");
return;
}
}
Thread.Sleep(20);
status = ftHandle.GetRxBytesAvailable(ref rxQueue);
if (rxQueue > 0 && status == FTDI.FT_STATUS.FT_OK)
{
// read data
uint read = 0;
ftHandle.Read(recData, (uint)rxQueue, ref read);
if (read == 0)
{
MessageBox.Show("No data have been read from FIFO");
return;
}
}
//status = ftHandle.GetTxBytesWaiting(ref txQueue);
//if (txQueue == 0)
//{
// // write data
// uint written = 0;
// ftHandle.Write(data, data.Length, ref written);
// if (written == 0)
// {
// MessageBox.Show("No data have been written");
// return;
// }
//}
}
static FTDI.FT_STATUS Sync_MPSSE(ref FTDI ftdi, byte[] TransferBuffer)
{
/*
* See FTDI AN_114 Page 10-11 Synchronize the MPSSE interface by sending bad command ＆xAA＊
* For Check MPSSE is sucsessfully running send a bad obcode (0xaa)
* The request must be 0xfa and the bad obcode
* In the AN make it at twice.
* Im too lazy for this!
*/
uint NumBytesToTransfer, TxRxQ = 0;
uint NumBytesTransfered = 0;
FTDI.FT_STATUS s;
NumBytesToTransfer = 0;
TransferBuffer[NumBytesToTransfer++] = 0xaa;
ftdi.Write(TransferBuffer, NumBytesToTransfer, ref NumBytesTransfered);
do
{
Thread.Sleep(5);
ftdi.GetTxBytesWaiting(ref TxRxQ);
} while (TxRxQ != 0);
Thread.Sleep(20);
s = ftdi.GetRxBytesAvailable(ref NumBytesToTransfer);
if (s == FTDI.FT_STATUS.FT_OK)
{
ftdi.Read(TransferBuffer, NumBytesToTransfer, ref NumBytesTransfered);
//if we get 0xfa and 0xaa MPSSE should be working
if (TransferBuffer[0] != 0xfa || TransferBuffer[1] != 0xaa)
{
return(FTDI.FT_STATUS.FT_OTHER_ERROR);
}
}
else
{
return(FTDI.FT_STATUS.FT_OTHER_ERROR);
}
return(FTDI.FT_STATUS.FT_OK);
}
public void GetTxBytesWaiting(ref uint num_bytes_write_queue)
{
myFtdiDevice.GetTxBytesWaiting(ref num_bytes_write_queue);
}
public object write(byte[] payload)
{
byte[] Start = { 0x00 };
byte[] MAB = new byte[256];
if (!dmx512Pro.IsOpen)
{
dmx512Pro.OpenByDescription("DMX USB PRO");
}
//DMX_PRO.SetDataCharacteristics(FTDI.FT_DATA_BITS.FT_BITS_8, FTDI.FT_STOP_BITS.FT_STOP_BITS_2, FTDI.FT_PARITY.FT_PARITY_NONE);
dmx512Pro.Purge(FTDI.FT_PURGE.FT_PURGE_RX);
dmx512Pro.Purge(FTDI.FT_PURGE.FT_PURGE_TX);
//DMX_PRO.SetBreak(true);
dmx512Pro.SetTimeouts(1000, 500);
uint tx = 0;
dmx512Pro.SetBaudRate(250000);
dmx512Pro.SetBreak(true);
System.Threading.Thread.Sleep(10);
dmx512Pro.SetBreak(false);
dmx512Pro.Write(MAB, 0, ref tx);
dmx512Pro.Write(Start, Start.Length, ref tx);
//DMX_PRO.Purge(FTDI.FT_PURGE.FT_PURGE_TX);
uint rx = 0;
int _try = 0;
msg _out = (msg)parse(payload, 0, 0, null);
_out.info();
Console.WriteLine(string.Format("Try: {0} ", ++_try));
dmx512Pro.Write(payload, payload.Length, ref tx);
do
{
dmx512Pro.GetTxBytesWaiting(ref tx);
//Console.WriteLine("Bytes Waiting: " + tx);
System.Threading.Thread.Sleep(100);
} while (tx != 0);
dmx512Pro.GetRxBytesAvailable(ref rx);
byte line_status = 0;
byte[] buffer = new byte[rx];
dmx512Pro.Read(buffer, rx, ref rx);
msg _in = (msg)parse(buffer, 1, _out.TransactionNumber, _out._pid);
///////////////////////////////////////////////////////////////////
_in.info();
Console.WriteLine("\n");
///////////////////////////////////////////////////////////////////
return(_in);
}