- Added sample for new Microchip Mcp23xxx Gpio expander Library/Driver

Projects/IO Expander/Microchip/Microchip.csproj

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="packages\GHIElectronics.TinyCLR.Core.2.1.0\build\net452\GHIElectronics.TinyCLR.Core.props" Condition="Exists('packages\GHIElectronics.TinyCLR.Core.2.1.0\build\net452\GHIElectronics.TinyCLR.Core.props')" />
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{40EE1C99-A152-4AF9-ADCE-453967FEA98A}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>Microchip</RootNamespace>
+    <AssemblyName>Microchip</AssemblyName>
+    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <ProjectTypeGuids>{A1948822-69DD-4150-919B-F3F42EFB71CC};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
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+    <NuGetPackageImportStamp>
+    </NuGetPackageImportStamp>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <Reference Include="GHIElectronics.TinyCLR.Devices.Gpio">
+      <HintPath>..\..\..\..\TinyCLR-Libraries\GHIElectronics.TinyCLR.Devices.Gpio\bin\Debug\GHIElectronics.TinyCLR.Devices.Gpio.dll</HintPath>
+    </Reference>
+    <Reference Include="GHIElectronics.TinyCLR.Devices.I2c">
+      <HintPath>..\..\..\..\TinyCLR-Libraries\GHIElectronics.TinyCLR.Devices.I2c\bin\Debug\GHIElectronics.TinyCLR.Devices.I2c.dll</HintPath>
+    </Reference>
+    <Reference Include="GHIElectronics.TinyCLR.Devices.Spi">
+      <HintPath>..\..\..\..\TinyCLR-Libraries\GHIElectronics.TinyCLR.Devices.Spi\bin\Debug\GHIElectronics.TinyCLR.Devices.Spi.dll</HintPath>
+    </Reference>
+    <Reference Include="GHIElectronics.TinyCLR.Drivers.Microchip.Mcp23xxx">
+      <HintPath>..\..\..\..\TinyCLR-Drivers\Microchip\Mcp23xxx\GHIElectronics.TinyCLR.Drivers.Microchip.Mcp23xxx\bin\Debug\GHIElectronics.TinyCLR.Drivers.Microchip.Mcp23xxx.dll</HintPath>
+    </Reference>
+    <Reference Include="GHIElectronics.TinyCLR.Native, Version=2.1.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>packages\GHIElectronics.TinyCLR.Native.2.1.0\lib\net452\GHIElectronics.TinyCLR.Native.dll</HintPath>
+    </Reference>
+    <Reference Include="GHIElectronics.TinyCLR.Pins, Version=2.1.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>packages\GHIElectronics.TinyCLR.Pins.2.1.0\lib\net452\GHIElectronics.TinyCLR.Pins.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('packages\GHIElectronics.TinyCLR.Core.2.1.0\build\net452\GHIElectronics.TinyCLR.Core.props')" Text="$([System.String]::Format('$(ErrorText)', 'packages\GHIElectronics.TinyCLR.Core.2.1.0\build\net452\GHIElectronics.TinyCLR.Core.props'))" />
+  </Target>
+</Project>

Projects/IO Expander/Microchip/Microchip.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.31424.327
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Microchip", "Microchip.csproj", "{40EE1C99-A152-4AF9-ADCE-453967FEA98A}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{40EE1C99-A152-4AF9-ADCE-453967FEA98A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{40EE1C99-A152-4AF9-ADCE-453967FEA98A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{40EE1C99-A152-4AF9-ADCE-453967FEA98A}.Debug|Any CPU.Deploy.0 = Debug|Any CPU
+		{40EE1C99-A152-4AF9-ADCE-453967FEA98A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{40EE1C99-A152-4AF9-ADCE-453967FEA98A}.Release|Any CPU.Build.0 = Release|Any CPU
+		{40EE1C99-A152-4AF9-ADCE-453967FEA98A}.Release|Any CPU.Deploy.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {0CFB69D5-28BC-4BAE-9E7D-8D5523B5CDB1}
+	EndGlobalSection
+EndGlobal

Projects/IO Expander/Microchip/Program.cs

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+using System;
+using System.Diagnostics;
+using System.Threading;
+
+using GHIElectronics.TinyCLR.Devices.Gpio;
+using GHIElectronics.TinyCLR.Devices.Spi;
+using GHIElectronics.TinyCLR.Pins;
+
+using GHIElectronics.TinyCLR.Drivers.Microchip.Mcp23xxx.Device;
+using static GHIElectronics.TinyCLR.Drivers.Microchip.Mcp23xxx.Mcp23Xxx;
+
+// ReSharper disable InconsistentNaming
+#pragma warning disable IDE1006 // Naming Styles
+
+
+namespace Microchip
+{
+    internal static class Program
+    {
+        private static Timer _outTimer;
+
+        /// <summary>
+        /// Using the Microchip Mcp23S18 gpio expander as a native like TinyClr Gpio Pin
+        /// </summary>
+        private static void Main()
+        {
+            // use default GPIO controller to setup pins for Mcp23xxx IO Expander
+            var gpioController = GpioController.GetDefault();
+            var reset = gpioController.OpenPin(SC13048.GpioPin.PA2);
+            var chipSelect = gpioController.OpenPin(SC13048.GpioPin.PA3);
+            var interruptPin = gpioController.OpenPin(SC13048.GpioPin.PB8);
+            interruptPin.SetDriveMode(GpioPinDriveMode.InputPullUp);
+
+            // create a Microchip MCP23S18 GPIO expander provider using the SPI bus on the FLEA
+            var mcp23S18 = new Mcp23GpioProvider(Product.Mcp23X18, SpiController.FromName(SC13048.SpiBus.Spi2), chipSelect, reset: reset, interruptPin: interruptPin);
+            // use the Mcp23S18 provider to create a 'native' GpioController
+            var externalGpioController = GpioController.FromProvider(mcp23S18);
+
+            // use the external GpioController to set up an external LED
+            // use port A, pin 0, set as output, no pull-up (using external pull up resistor as Mcp23S18 has open drain outputs)
+            var exLed = externalGpioController.OpenPin(ExternalGpioPin.GpA0);
+            exLed.SetDriveMode(GpioPinDriveMode.OutputOpenDrain);
+
+            // use the external GpioController to set up an external Button
+            // use port A, pin 1 set as input, using internal pull-up and 30ms debounce timing, set with a callback when either rising or falling edge is detected
+            var exButton = externalGpioController.OpenPin(ExternalGpioPin.GpA1);
+            exButton.SetDriveMode(GpioPinDriveMode.InputPullUp);
+            exButton.DebounceTimeout = TimeSpan.FromMilliseconds(30);
+            exButton.ValueChangedEdge = GpioPinEdge.FallingEdge | GpioPinEdge.RisingEdge;
+            exButton.ValueChanged += (_, args) =>
+            {
+                Debug.WriteLine($"change: edge:{(args.Edge == GpioPinEdge.RisingEdge ? "rise" : "fall")} ts:{args.Timestamp}");
+                exLed.Write(exLed.Read() == GpioPinValue.Low ? GpioPinValue.High : GpioPinValue.Low);
+            };
+
+            // now you can use an expanded GPIO pin wherever a standard GpioPin is required; without need to extend the sealed GpioPin class
+            var exChipSelect = externalGpioController.OpenPin(ExternalGpioPin.GpB0);
+            exChipSelect.SetDriveMode(GpioPinDriveMode.Output);
+            var s = SpiController.FromName(SC13048.SpiBus.Spi1);
+            s.GetDevice(new SpiConnectionSettings{ ChipSelectType = SpiChipSelectType.Gpio, ChipSelectLine = exLed });
+
+
+            // finally use default GPIO controller to blink the internal LED and ensure things are running as expected :-)
+            var onBoardLed = gpioController.OpenPin(SC13048.GpioPin.PA8);
+            onBoardLed.SetDriveMode(GpioPinDriveMode.Output);
+
+            _outTimer = new Timer(_ =>
+            {
+                onBoardLed.Write(onBoardLed.Read() == GpioPinValue.High ? GpioPinValue.Low : GpioPinValue.High);
+                _outTimer.Change(TimeSpan.FromSeconds(2), TimeSpan.FromMilliseconds(-1));
+
+            }, null, TimeSpan.FromSeconds(1), TimeSpan.FromMilliseconds(-1));
+
+            // put main thread to sleep
+            Thread.Sleep(Timeout.Infinite);
+        }
+    }
+}

Projects/IO Expander/Microchip/Properties/AssemblyInfo.cs

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+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("Microchip")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Microchip")]
+[assembly: AssemblyCopyright("Copyright ©  2021")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("40ee1c99-a152-4af9-adce-453967fea98a")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

Projects/IO Expander/Microchip/packages.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="GHIElectronics.TinyCLR.Core" version="2.1.0" targetFramework="net452" />
+  <package id="GHIElectronics.TinyCLR.Native" version="2.1.0" targetFramework="net452" />
+  <package id="GHIElectronics.TinyCLR.Pins" version="2.1.0" targetFramework="net452" />
+</packages>

Projects/TinyCLR/MemoryManager/MemoryManager.csproj

@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="packages\GHIElectronics.TinyCLR.Core.2.1.0\build\net452\GHIElectronics.TinyCLR.Core.props" Condition="Exists('packages\GHIElectronics.TinyCLR.Core.2.1.0\build\net452\GHIElectronics.TinyCLR.Core.props')" />
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{2F8637E4-D64F-4EA1-B6A1-F93088280A67}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>MemoryManager</RootNamespace>
+    <AssemblyName>MemoryManager</AssemblyName>
+    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <ProjectTypeGuids>{A1948822-69DD-4150-919B-F3F42EFB71CC};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <LangVersion>9</LangVersion>
+    <NuGetPackageImportStamp>
+    </NuGetPackageImportStamp>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <Reference Include="GHIElectronics.TinyCLR.Cryptography, Version=2.1.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>packages\GHIElectronics.TinyCLR.Cryptography.2.1.0\lib\net452\GHIElectronics.TinyCLR.Cryptography.dll</HintPath>
+    </Reference>
+    <Reference Include="GHIElectronics.TinyCLR.Devices.Rtc, Version=2.1.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>packages\GHIElectronics.TinyCLR.Devices.Rtc.2.1.0\lib\net452\GHIElectronics.TinyCLR.Devices.Rtc.dll</HintPath>
+    </Reference>
+    <Reference Include="GHIElectronics.TinyCLR.Devices.SecureStorage, Version=2.1.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>packages\GHIElectronics.TinyCLR.Devices.SecureStorage.2.1.0\lib\net452\GHIElectronics.TinyCLR.Devices.SecureStorage.dll</HintPath>
+    </Reference>
+    <Reference Include="GHIElectronics.TinyCLR.Drivers.MemoryManager">
+      <HintPath>..\..\..\..\TinyCLR-Drivers\MemoryManager\GHIElectronics.TinyCLR.Drivers.MemoryManager\bin\Debug\GHIElectronics.TinyCLR.Drivers.MemoryManager.dll</HintPath>
+    </Reference>
+    <Reference Include="GHIElectronics.TinyCLR.Native, Version=2.1.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>packages\GHIElectronics.TinyCLR.Native.2.1.0\lib\net452\GHIElectronics.TinyCLR.Native.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('packages\GHIElectronics.TinyCLR.Core.2.1.0\build\net452\GHIElectronics.TinyCLR.Core.props')" Text="$([System.String]::Format('$(ErrorText)', 'packages\GHIElectronics.TinyCLR.Core.2.1.0\build\net452\GHIElectronics.TinyCLR.Core.props'))" />
+  </Target>
+</Project>

Projects/TinyCLR/MemoryManager/MemoryManager.sln

@@ -0,0 +1,27 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.31624.102
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MemoryManager", "MemoryManager.csproj", "{2F8637E4-D64F-4EA1-B6A1-F93088280A67}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{2F8637E4-D64F-4EA1-B6A1-F93088280A67}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{2F8637E4-D64F-4EA1-B6A1-F93088280A67}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{2F8637E4-D64F-4EA1-B6A1-F93088280A67}.Debug|Any CPU.Deploy.0 = Debug|Any CPU
+		{2F8637E4-D64F-4EA1-B6A1-F93088280A67}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2F8637E4-D64F-4EA1-B6A1-F93088280A67}.Release|Any CPU.Build.0 = Release|Any CPU
+		{2F8637E4-D64F-4EA1-B6A1-F93088280A67}.Release|Any CPU.Deploy.0 = Release|Any CPU
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+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {D82A7AC9-3B46-47A8-86E9-8C18FC655172}
+	EndGlobalSection
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