unsafe private static Trion.TrionError ReadSR(string sTarget, out string sample_rate)
{
//fixed byte srate[27];
byte[] srate = new byte[255];
Trion.TrionError err = trion_api.API.DeWeGetParamStruct_str(sTarget, "SampleRate", srate, 255);
sample_rate = ByteArrayToString(srate);
return(err);
}
private static void configureNetwork()
{
//
// Enter the local IP here (not the one of the TRIONET device!)
String address = "127.0.0.1";
String netmask = "255.255.255.0";
// Configure the network interface to access TRIONET devices
Trion.TrionError nErrorCode = trion_api.API.DeWeSetParamStruct_str("trionetapi/config", "Network/IPV4/LocalIP", address);
trion_api.API.CheckError(nErrorCode);
nErrorCode = trion_api.API.DeWeSetParamStruct_str("trionetapi/config", "Network/IPV4/NetMask", netmask);
trion_api.API.CheckError(nErrorCode);
}
private static void configureNetwork()
{
//
// Enter the local IP here (not the one of the TRIONET device!)
String address = "169.254.220.141";
String netmask = "255.255.0.0";
// Configure the network interface to access TRIONET devices
Trion.TrionError nErrorCode = trion_api.API.DeWeSetParamStruct_str("trionetapi/config", "Network/IPV4/LocalIP", address);
//System.Console.WriteLine(nErrorCode.ToString());
nErrorCode = trion_api.API.DeWeSetParamStruct_str("trionetapi/config", "Network/IPV4/NetMask", netmask);
//System.Console.WriteLine(nErrorCode.ToString());
}
static int Main(string[] args)
{
Int32 nNoOfBoards = 0;
bool trionet_support = true;
// Select Backend.TRIONET or Backend.TRION
if (trionet_support)
{
trion_api.API.DeWeConfigure(trion_api.API.Backend.TRIONET);
// configure net to access TRIONET devices
configureNetwork();
}
else
{
trion_api.API.DeWeConfigure(trion_api.API.Backend.TRION);
}
// get access to TRIONET devices
configureNetwork();
Trion.TrionError nErrorCode = trion_api.API.DeWeDriverInit(out nNoOfBoards);
System.Console.WriteLine(nNoOfBoards.ToString() + " boards found. err = " + nErrorCode.ToString());
// Check if TRION cards are in the system
if (nNoOfBoards == 0)
{
Console.WriteLine("No Trion cards found. Aborting...\n");
Console.WriteLine("Please configure a system using the DEWE2 Explorer.\n");
return(1);
}
// Retrieve BoardId from the commandline
int nBoardId = 0;
if (args.Length > 0)
{
nBoardId = Convert.ToInt32(args[0]);
if (nBoardId >= Math.Abs(nNoOfBoards))
{
Console.WriteLine("Invalid BoardId: {0}\n", nBoardId);
return(1);
}
}
// Open & Reset the board
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.OPEN_BOARD, 0);
trion_api.API.CheckError(nErrorCode);
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.RESET_BOARD, 0);
trion_api.API.CheckError(nErrorCode);
// Set configuration to use one board in standalone operation
string sTarget = "BoardID" + nBoardId + "/AcqProp";
nErrorCode = trion_api.API.DeWeSetParamStruct_str(sTarget, "OperationMode", "Slave");
trion_api.API.CheckError(nErrorCode);
nErrorCode = trion_api.API.DeWeSetParamStruct_str(sTarget, "ExtTrigger", "False");
trion_api.API.CheckError(nErrorCode);
nErrorCode = trion_api.API.DeWeSetParamStruct_str(sTarget, "ExtClk", "False");
trion_api.API.CheckError(nErrorCode);
// configure the BoardCounter-channel
// for HW - timestamping to work it is necessary to have
// at least one synchronous channel active. All TRION
// boardtypes support a channel called Board-Counter (BoardCNT)
// this is a basic counter channel, that usually has no
// possibility to feed an external signal, and is usually
// used to route internal signals to its input
sTarget = "BoardID" + nBoardId + "/BoardCNT0";
nErrorCode = trion_api.API.DeWeSetParamStruct_str(sTarget, "Used", "True");
trion_api.API.CheckError(nErrorCode);
// Setup the acquisition buffer: Size = BLOCK_SIZE * BLOCK_COUNT
// For the default samplerate 2000 samples per second, 200 is a buffer for
// 0.1 seconds
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.BUFFER_BLOCK_SIZE, 200);
trion_api.API.CheckError(nErrorCode);
// Set the ring buffer size to 50 blocks. So ring buffer can store samples
// for 5 seconds
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.BUFFER_BLOCK_COUNT, 50);
trion_api.API.CheckError(nErrorCode);
// configure the CAN-channel 0
// only two properties that need to be changed for this example are
// SyncCounter: set it to 10Mhz, so the CAN Data will have timestamps with
// Used: enable the channel for usage
sTarget = "BoardID" + nBoardId + "/CANAll";
nErrorCode = trion_api.API.DeWeSetParamStruct_str(sTarget, "SyncCounter", "10 MHzCount");
trion_api.API.CheckError(nErrorCode);
nErrorCode = trion_api.API.DeWeSetParamStruct_str(sTarget, "Termination", "True");
trion_api.API.CheckError(nErrorCode);
nErrorCode = trion_api.API.DeWeSetParamStruct_str(sTarget, "ListenOnly", "False");
trion_api.API.CheckError(nErrorCode);
nErrorCode = trion_api.API.DeWeSetParamStruct_str(sTarget, "BaudRate", "500000");
trion_api.API.CheckError(nErrorCode);
nErrorCode = trion_api.API.DeWeSetParamStruct_str(sTarget, "Used", "True");
trion_api.API.CheckError(nErrorCode);
// Open the CAN - Interface to this Board
nErrorCode = trion_api.API.DeWeOpenCAN(nBoardId);
trion_api.API.CheckError(nErrorCode);
// Configure the ASYNC-Polling Time to 100ms
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.ASYNC_POLLING_TIME, 100);
trion_api.API.CheckError(nErrorCode);
// Update the hardware with settings
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.UPDATE_PARAM_ALL, 0);
trion_api.API.CheckError(nErrorCode);
// Start CAN capture, before start sync-acquisition
// the sync - acquisition will synchronize the async data
nErrorCode = trion_api.API.DeWeStartCAN(nBoardId, -1);
trion_api.API.CheckError(nErrorCode);
// Data Acquisition - stopped with any key
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.START_ACQUISITION, 0);
trion_api.API.CheckError(nErrorCode);
if (nErrorCode <= 0)
{
int CANBUFFER = 1000;
trion_api.BOARD_CAN_FRAME[] aDecodedFrame = new trion_api.BOARD_CAN_FRAME[CANBUFFER];
while (true)
{
if (Console.KeyAvailable) // since .NET 2.0
{
break;
}
Int32 nAvailSamples = 0;
Int32 nRealFrameCount = 0;
// wait for 100ms
System.Threading.Thread.Sleep(100);
// Get the number of samples already stored in the ring buffer
nErrorCode = trion_api.API.DeWeGetParam_i32(nBoardId, Trion.TrionCommand.BUFFER_AVAIL_NO_SAMPLE, out nAvailSamples);
trion_api.API.CheckError(nErrorCode);
// Free the ring buffer after read of all values
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.BUFFER_FREE_NO_SAMPLE, nAvailSamples);
trion_api.API.CheckError(nErrorCode);
// now obtain all CAN - frames that have been collected in this timespan
do
{
nRealFrameCount = 0;
aDecodedFrame[0].CanNo = 42;
nErrorCode = trion_api.API.DeWeReadCAN(nBoardId, ref aDecodedFrame, CANBUFFER, ref nRealFrameCount);
trion_api.API.CheckError(nErrorCode);
for (int i = 0; i < nRealFrameCount; ++i)
{
//Timestamp in 100ns re-formated to seconds
float timestamp = (float)(aDecodedFrame[i].SyncCounter / 10000000.0);
// note here: with a 10Mhz counter @ 32Bit width, the timestamp will wrap
// around after roughly 7 minutes. This Warp around has to be handled by the
// application on raw data
System.Console.WriteLine("[{0:f7}] MSGID: {1:X8} Port: {2:D} Errorcount: {3:D} DataLen: {4:D} Data: {5:X2} {6:X2} {7:X2} {8:X2} {9:X2} {10:X2} {11:X2} {12:X2}\n",
timestamp,
aDecodedFrame[i].MessageId,
aDecodedFrame[i].CanNo,
aDecodedFrame[i].ErrorCounter,
aDecodedFrame[i].DataLength,
aDecodedFrame[i].CanData[0], aDecodedFrame[i].CanData[1], aDecodedFrame[i].CanData[2], aDecodedFrame[i].CanData[3],
aDecodedFrame[i].CanData[4], aDecodedFrame[i].CanData[5], aDecodedFrame[i].CanData[6], aDecodedFrame[i].CanData[7]
);
}
}while (nRealFrameCount > (CANBUFFER / 2));
}
}
// Stop CAN capture
nErrorCode = trion_api.API.DeWeStopCAN(nBoardId, -1);
trion_api.API.CheckError(nErrorCode);
// Stop data acquisition
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.STOP_ACQUISITION, 0);
// Close the board connection
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.CLOSE_BOARD, 0);
// Uninitialize
nErrorCode = trion_api.API.DeWeDriverDeInit();
return((int)nErrorCode);
}
static int Main(string[] args)
{
Int32 nNoOfBoards = 0;
bool trionet_support = true;
// Select Backend.TRIONET or Backend.TRION
if (trionet_support)
{
trion_api.API.DeWeConfigure(trion_api.API.Backend.TRIONET);
// configure net to access TRIONET devices
configureNetwork();
}
else
{
trion_api.API.DeWeConfigure(trion_api.API.Backend.TRION);
}
Trion.TrionError nErrorCode = trion_api.API.DeWeDriverInit(out nNoOfBoards);
System.Console.WriteLine(nNoOfBoards.ToString() + " boards found. err = " + nErrorCode.ToString());
// Check if TRION cards are in the system
if (nNoOfBoards == 0)
{
Console.WriteLine("No Trion cards found. Aborting...\n");
Console.WriteLine("Please configure a system using the DEWE2 Explorer.\n");
return(1);
}
// Retrieve BoardId from the commandline
int nBoardId = 0;
if (args.Length > 0)
{
nBoardId = Convert.ToInt32(args[0]);
if (nBoardId >= Math.Abs(nNoOfBoards))
{
Console.WriteLine("Invalid BoardId: {0}\n", nBoardId);
return(1);
}
}
// Open & Reset the board
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.OPEN_BOARD, 0);
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.RESET_BOARD, 0);
// Set configuration to use one board in standalone operation
string sTarget = "BoardID" + nBoardId + "/AcqProp";
nErrorCode = trion_api.API.DeWeSetParamStruct_str(sTarget, "OperationMode", "Slave");
nErrorCode = trion_api.API.DeWeSetParamStruct_str(sTarget, "ExtTrigger", "False");
nErrorCode = trion_api.API.DeWeSetParamStruct_str(sTarget, "ExtClk", "False");
nErrorCode = trion_api.API.DeWeSetParamStruct_str(sTarget, "SampleRate", "2000");
string sample_rate;
nErrorCode = ReadSR(sTarget, out sample_rate);
sTarget = "BoardID" + nBoardId + "/AI0";
nErrorCode = trion_api.API.DeWeSetParamStruct_str(sTarget, "Used", "True");
if (nErrorCode > 0)
{
Console.WriteLine("Could not enable AI channel on board {0}: {1}\n", nBoardId, trion_api.API.DeWeErrorConstantToString(nErrorCode));
return(1);
}
// Set 10V range
nErrorCode = trion_api.API.DeWeSetParamStruct_str(sTarget, "Range", "10 V");
// Setup the acquisition buffer: Size = BLOCK_SIZE * BLOCK_COUNT
// For the default samplerate 2000 samples per second, 200 is a buffer for
// 0.1 seconds
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.BUFFER_BLOCK_SIZE, 200);
// Set the ring buffer size to 50 blocks. So ring buffer can store samples
// for 5 seconds
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.BUFFER_BLOCK_COUNT, 50);
// Update the hardware with settings
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.UPDATE_PARAM_ALL, 0);
// Get the ADC delay. The typical conversion time of the ADC.
// The ADCDelay is the offset of analog samples to digital or counter samples.
// It is measured in number of samples,
Int32 nADCDelay = 0;
nErrorCode = trion_api.API.DeWeGetParam_i32(nBoardId, Trion.TrionCommand.BOARD_ADC_DELAY, out nADCDelay);
// Data Acquisition - stopped with any key
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.START_ACQUISITION, 0);
if (nErrorCode <= 0)
{
Int64 nBufStartPos; // First position in the ring buffer
Int64 nBufEndPos; // Last position in the ring buffer
Int32 nBufSize; // Total buffer size
float fVal;
// Get detailed information about the ring buffer
// to be able to handle the wrap around
nErrorCode = trion_api.API.DeWeGetParam_i64(nBoardId, Trion.TrionCommand.BUFFER_START_POINTER, out nBufStartPos);
nErrorCode = trion_api.API.DeWeGetParam_i64(nBoardId, Trion.TrionCommand.BUFFER_END_POINTER, out nBufEndPos);
nErrorCode = trion_api.API.DeWeGetParam_i32(nBoardId, Trion.TrionCommand.BUFFER_TOTAL_MEM_SIZE, out nBufSize);
while (true)
{
if (Console.KeyAvailable) // since .NET 2.0
{
break;
}
Int64 nReadPos; // Pointer to the ring buffer read pointer
Int32 nAvailSamples;
Int32 i;
// wait for 100ms
System.Threading.Thread.Sleep(10);
// Get the number of samples already stored in the ring buffer
nErrorCode = trion_api.API.DeWeGetParam_i32(nBoardId, Trion.TrionCommand.BUFFER_AVAIL_NO_SAMPLE, out nAvailSamples);
if (Trion.TrionError.BUFFER_OVERWRITE == nErrorCode)
{
Console.WriteLine("Measurement Buffer Overflow happened - stopping measurement");
break;
}
// Available samples has to be recalculated according to the ADC delay
nAvailSamples = nAvailSamples - nADCDelay;
// skip if number of samples is smaller than the current ADC delay
if (nAvailSamples <= 0)
{
continue;
}
// Get the current read pointer
nErrorCode = trion_api.API.DeWeGetParam_i64(nBoardId, Trion.TrionCommand.BUFFER_ACT_SAMPLE_POS, out nReadPos);
// recalculate nReadPos to handle ADC delay
nReadPos = nReadPos + nADCDelay * sizeof(UInt32);
// Read the current samples from the ring buffer
for (i = 0; i < nAvailSamples; ++i)
{
// Handle the ring buffer wrap around
if (nReadPos >= nBufEndPos)
{
nReadPos -= nBufSize;
}
Int32 nRawData = GetDataAtPos(nReadPos);
fVal = (float)((float)nRawData / 0x7FFFFF00 * 10.0);
// Print the sample value:
string out_str = String.Format("Raw {0,12} {1,17:#.000000000000}", nRawData, fVal);
Console.WriteLine(out_str);
// Increment the read pointer
nReadPos += sizeof(UInt32);
}
// Free the ring buffer after read of all values
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.BUFFER_FREE_NO_SAMPLE, nAvailSamples);
Console.WriteLine("CMD_BUFFER_FREE_NO_SAMPLE {0} (err={1})", nAvailSamples, nErrorCode);
}
}
// Stop data acquisition
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.STOP_ACQUISITION, 0);
// Close the board connection
nErrorCode = trion_api.API.DeWeSetParam_i32(nBoardId, Trion.TrionCommand.CLOSE_BOARD, 0);
// Uninitialize
nErrorCode = trion_api.API.DeWeDriverDeInit();
return((int)nErrorCode);
}
