コード例 #1
0
        public void PreloadSamples(StreamType channelType, ushort channelNumber, IList <short> samples)
        {
            ITCMM.ITCChannelDataEx[] channelData = new ITCMM.ITCChannelDataEx[1];

            channelData[0].ChannelType   = (ushort)channelType;
            channelData[0].ChannelNumber = channelNumber;
            channelData[0].Value         = (short)samples.Count;

            channelData[0].Command = ITCMM.PRELOAD_FIFO_COMMAND_EX;


            IntPtr samplesPtr = Marshal.AllocHGlobal(samples.Count * sizeof(short));

            try
            {
                Marshal.Copy(samples.ToArray(), 0, samplesPtr, samples.Count);
                channelData[0].DataPointer = samplesPtr;

                uint err = ItcmmCall(() => ITCMM.ITC_ReadWriteFIFO(DevicePtr, 1, channelData));
                if (err != ITCMM.ACQ_SUCCESS)
                {
                    throw new HekaDAQException("Unable to push data", err);
                }
            }
            finally
            {
                Marshal.FreeHGlobal(samplesPtr);
            }
        }