VCBA-44

ShimmerAPI/ShimmerAPI/ShimmerBluetooth.cs

@@ -6145,6 +6145,7 @@ public class SignalUnits
             public static readonly String Local_DefaultCal = "local*";
             public static readonly String KiloOhms = "kOhms";
             public static readonly String MicroSiemens = "uSiemens";
+            public static readonly String NanoAmpere = "nA";
         }
     }
 

ShimmerAPI/ShimmerAPI/Utilities/ProgrammerUtilities.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace ShimmerAPI.Utilities
+{
+    public static class ProgrammerUtilities
+    {
+        //Note there is a method Calculatetwoscomplement in ShimmerBluetooth class that would be more suited to be in this class as well
+        public static int ByteArrayToInt(byte[] data, bool lsbOrder, bool isSigned)
+        {
+            var number = 0;
+            int i = 0;
+            foreach (byte b in data)
+            {
+                if (lsbOrder)
+                {
+                    number += (b << i * 8);
+                } else
+                {
+                    number = (number << 8) + b;
+                }
+                i++;
+            }
+
+            if (isSigned)
+            {
+                var bitLength = data.Length * 8;
+                if (number >= (1 << (bitLength - 1)))
+                {
+                    number = -((number ^ (int)(Math.Pow(2, bitLength) - 1)) + 1);
+                }
+            }
+            return number;
+        }
+    }
+}