void OpenFtdiDeviceThenWaitAndWrite()
{
Console.WriteLine("Starting DMX Frame sender thread : id {0} [{1}]", Thread.CurrentThread.ManagedThreadId, Thread.CurrentThread.Name);
uint handle = 0;
try
{
status = FtdiDevice.FT_Open(0, ref handle).CheckStatus("FT_Open()");
}
catch (System.DllNotFoundException dllExc)
{
Console.WriteLine("DllException : " + dllExc.Message);
Console.WriteLine("OpenDMX serial chipset driver may not be installed in your system !");
Console.WriteLine("You can download the latest version here : http://www.ftdichip.com/Drivers/D2XX.htm");
Console.WriteLine("Your DMX interface can not be used, is not correctly installed or is not recognized.");
return;
}
if (status != FT_STATUS.FT_OK)
{
if (status == FT_STATUS.FT_DEVICE_NOT_FOUND)
{
Console.WriteLine("No OpenDMX Interface.");
return;
}
else
{
Console.WriteLine($"ERROR : unknow error in FT_Open() : {status}");
}
}
Console.WriteLine("OpenDMX interface found.");
WriteDmxDataLoop(handle);
}
// Emission d'une trame en DMX
int write(uint handle, byte[] data, int length)
{
IntPtr ptr = Marshal.AllocHGlobal((int)length);
Marshal.Copy(data, 0, ptr, (int)length);
uint bytesWritten = 0;
status = FtdiDevice.FT_Write(handle, ptr, (uint)length, ref bytesWritten).CheckStatus("FT_Write()");
return((int)bytesWritten);
}
// Cette méhtode itère et envoyé les données le buffer en continue sur le port DMX
void WriteDmxDataLoop(uint handle)
{
while (!done)
{
InitOpenDMX(handle);
FtdiDevice.FT_SetBreakOn(handle).CheckStatus("FT_SetBreakOn()");
FtdiDevice.FT_SetBreakOff(handle).CheckStatus("FT_SetBreakOff()");
bytesWritten = write(handle, buffer, buffer.Length);
Thread.Sleep(20);
}
}
/// <summary>
/// Initialise la configuration du port OpenDMX.
/// </summary>
void InitOpenDMX(uint handle)
{
var status = FtdiDevice.FT_ResetDevice(handle).CheckStatus("FT_ResetDevice()");
status = FtdiDevice.FT_SetDivisor(handle, (char)12).CheckStatus("FT_SetDivisor()"); // set baud rate
status = FtdiDevice.FT_SetDataCharacteristics(handle, BITS_8, STOP_BITS_2, PARITY_NONE).CheckStatus("FT_SetDataCharacteristics()");
status = FtdiDevice.FT_SetFlowControl(handle, (char)FLOW_NONE, 0, 0).CheckStatus("FT_SetFlowControl()");
status = FtdiDevice.FT_ClrRts(handle).CheckStatus("FT_ClrRts()");
status = FtdiDevice.FT_Purge(handle, PURGE_TX).CheckStatus("FT_Purge() 1");
status = FtdiDevice.FT_Purge(handle, PURGE_RX).CheckStatus("FT_Purge() 2");
}
