using System;
using System.IO;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using NationalInstruments.VisaNS; // Add Reference for National Instrument Common and Nation Instrument VisaNS

namespace Example6_Send2MDOarb
{
    public partial class Form1 : Form
    {
        private MessageBasedSession mbSession;
        // Instrument VISA address
        string resourceString = "USB0::0x0699::0x0408::C011373::INSTR";

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            // example waveform: sine wave using 8 sample points, floating points between -1.00 to
            // 1.00 (range of AFG).  
            float[] FArray = { 0.78f, 0.00f, -0.78f, 0.00f, 0.78f, 0.00f, -0.78f, 0.00f };
            
            // pre-processing
            // encode float 'FArray' into binary waveform data for AFG.  This is
            // the same as AWG5000B but marker bits are ignored.  see AWG5000B series
            // programmer manual for bit definitions.
            byte[] Str2Byt = FArray.SelectMany(value => BitConverter.GetBytes(value)).ToArray();
            string EnCdStr = System.Text.Encoding.UTF7.GetString(Str2Byt);
            
            // build binary block header
            int bytes = EnCdStr.Length;
            string header = "#" + Convert.ToString(Convert.ToString(bytes).Length) + Convert.ToString(bytes);

            // Send BINary waveform to MDO AFG
            SendBINary(header, EnCdStr);
            
            // Send ASCii waveform to MDO AFG
            SendASCii(FArray);
        }

        private void SendBINary(string header, string EnCdStr)
        {
            // Open connection to instrument
            mbSession = (MessageBasedSession)ResourceManager.GetLocalManager().Open(resourceString);

            // Write commands as stated in programmers manual
            mbSession.Write("*rst");
            mbSession.Write("*cls");
            mbSession.Write("AFG:ARBitrary:EMEM:POINTS:ENCdg BINary");
            mbSession.Write("AFG:ARBitrary:EMEM:POINTS:BYTEORDer LSB");
            mbSession.Write("AFG:ARBitrary:EMEM:POINTS " + header + EnCdStr);
            mbSession.Write("AFG:FUNCtion ARBitrary");
            mbSession.Write("AFG:OUTPut:STATE 1");

            // Close instrument connection
            mbSession.Dispose();
        }

        private void SendASCii(float[] FArray)
        {
            // Make CSV from floating point array
            string CSV = string.Join(",", FArray);

            // Open connection to instrument
            mbSession = (MessageBasedSession)ResourceManager.GetLocalManager().Open(resourceString);

            // Write commands as stated in programmers manual
            mbSession.Write("*rst");
            mbSession.Write("*cls");
            mbSession.Write("AFG:ARBitrary:EMEM:POINTS:ENCdg ASCii");
            mbSession.Write("AFG:ARBitrary:EMEM:POINTS " + CSV);
            mbSession.Write("AFG:FUNCtion ARBitrary");
            mbSession.Write("AFG:OUTPut:STATE 1");

            // Close instrument connection
            mbSession.Dispose();
        }
    }
}