Add bus timing helpers

nanoFramework.Device.Can/CanBitTiming.cs

@@ -0,0 +1,58 @@
+//
+// Copyright (c) .NET Foundation and Contributors
+// See LICENSE file in the project root for full license information.
+//
+
+namespace nanoFramework.Device.Can
+{
+    /// <summary>
+    /// CAN bit timings.
+    /// </summary>
+    public enum CanBitTiming
+    {
+        /// <summary>
+        /// None. Manually setted values.
+        /// </summary>
+        _None,
+
+        /// <summary>
+        /// 25kBaud.
+        /// </summary>
+        _25kBaud,
+
+        /// <summary>
+        /// 50kBaud.
+        /// </summary>
+        _50kBaud,
+
+        /// <summary>
+        /// 100kBaud.
+        /// </summary>
+        _100kBaud,
+
+        /// <summary>
+        /// 125kBaud.
+        /// </summary>
+        _125kBaud,
+
+        /// <summary>
+        /// 250kBaud.
+        /// </summary>
+        _250kBaud,
+
+        /// <summary>
+        /// 500kBaud.
+        /// </summary>
+        _500kBaud,
+
+        /// <summary>
+        /// 800kBaud.
+        /// </summary>
+        _800kBaud,
+
+        /// <summary>
+        /// 1000kBaud.
+        /// </summary>
+        _1000kBaud,
+    }
+}

nanoFramework.Device.Can/CanSettings.cs

@@ -22,6 +22,9 @@ public sealed class CanSettings
         [System.Diagnostics.DebuggerBrowsable(System.Diagnostics.DebuggerBrowsableState.Never)]
         private byte _syncJumpWidth;
 
+        [System.Diagnostics.DebuggerBrowsable(System.Diagnostics.DebuggerBrowsableState.Never)]
+        private CanBitTiming _timing = CanBitTiming._None;
+
         /// <summary>
         /// Initializes a new instance of <see cref="CanSettings"/>.
         /// </summary>
@@ -37,6 +40,14 @@ public sealed class CanSettings
             _syncJumpWidth = syncJumpWidth;
         }
 
+        /// <summary>
+        /// Initializes a new instance of <see cref="CanSettings"/>.
+        /// </summary>
+        /// <param name="timing">Bus baud rate timing preset.</param>
+        public CanSettings (CanBitTiming timing) {
+            _timing = timing;
+        }
+
         /// <summary>
         /// Initializes a copy of a <see cref="CanSettings"/> object.
         /// </summary>
@@ -84,5 +95,14 @@ public byte SyncJumpWidth
             get { return _syncJumpWidth; }
             set { _syncJumpWidth = value; }
         }
+
+        /// <summary>
+        /// Gets or sets the <see cref="CanBitTiming"/>.
+        /// </summary>
+        public CanBitTiming Timing
+        {
+            get { return _timing; }
+            set { _timing = value; }
+        }
     }
 }

nanoFramework.Device.Can/nanoFramework.Device.Can.nfproj

@@ -53,6 +53,7 @@
     <Compile Include="CanMessageReceivedEventArgs.cs" />
     <Compile Include="CanControllerEventListener.cs" />
     <Compile Include="CanMessageEvent.cs" />
+    <Compile Include="CanBitTiming.cs" />
     <None Include="key.snk" />
   </ItemGroup>
   <ItemGroup>