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83 浏览量 2022-09-20 20:04:13 上传评论收藏 193KB RAR 举报

PWM（Pulse Width Modulation）是一种常见的数字信号处理技术，常用于控制电子设备的功率输出或实现模拟信号的数字化表示。在本示例中，"PWM example in Fez Domino board, in C#" 描述了一个使用C#编程语言在Fez Domino开发板上实现的PWM应用。Fez Domino是一款基于.NET Micro Framework的开发平台，它提供了丰富的硬件接口，包括PWM输出，便于开发者进行嵌入式系统开发。 Fez Domino板载的PWM功能主要由微控制器的硬件定时器支持。在C#中，我们可以通过.NET Micro Framework提供的类库来访问和配置这些硬件资源。例如，`System.Device.Gpio`命名空间下的`PwmChannel`类可以用来创建和管理PWM通道。需要打开一个特定的PWM引脚，设置其频率和占空比，然后启用该通道，以开始输出PWM波形。以下是使用C#操作PWM的基本步骤： 1. **初始化PWM通道**：需要导入`System.Device.Gpio`库，并实例化一个`PwmController`对象。这通常涉及到选择合适的PWM控制器和通道，例如`PwmController.Default`获取默认的PWM控制器。 2. **配置PWM参数**：设置PWM的频率（单位通常是Hz）和占空比。占空比决定了高电平持续时间相对于周期的比例，从而控制输出功率或模拟电压的大小。例如，`pwmChannel.SetPulseParameters(frequency, dutyCycle)`。 3. **启用PWM输出**：通过调用`PwmChannel.Start()`方法开启PWM输出。 4. **调整和关闭PWM**：在需要改变占空比或者关闭PWM输出时，可以使用`SetDutyCycle()`和`Stop()`方法。 5. **释放资源**：完成PWM操作后，记得关闭PWM通道和控制器，以避免占用不必要的硬件资源，如`pwmChannel.Dispose()`和`pwmController.Dispose()`。在"pwm_example_v1"这个压缩文件中，很可能包含了实现上述操作的C#源代码文件。可能的文件结构可能包括一个或多个`.cs`文件，如`Program.cs`，其中定义了主程序逻辑；以及可能的配置文件或README文档，用于解释如何编译、运行和理解代码。通过这个示例，开发者可以学习如何在Fez Domino板上使用C#控制PWM，进而应用于电机控制、LED亮度调节、音频信号生成等场景。理解并掌握这一技术有助于提升对嵌入式系统和实时控制的理解。在实际项目中，开发者还需要考虑硬件限制、实时性能、功耗优化等因素，以实现更高效和可靠的解决方案。

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pwm_example_v1.rar （86个子文件）

pwm_example_v1

pwm_example_v1.sln 1KB

pwm_example_v1.suo 17KB

pwm_example_v1

bin

Release

Debug

cvd.NETMF.System.xml 32KB

cvd.NETMF.USBClent.dll 19KB

pwm_example_v1.pe 1KB

cvd.NETMF.FEZ.pe 900B

cvd.NETMF.Hardware.pe 8KB

cvd.NETMF.USBClent.pdbx 40KB

MFConsoleApplication1.pe 1KB

cvd.NETMF.System.pdbx 11KB

GHIElectronics.NETMF.USBClient.pdbx 40KB

cvd.NETMF.System.pe 2KB

GHIElectronics.NETMF.USBClient.pe 8KB

MFConsoleApplication1.pdbx 3KB

cvd.NETMF.Hardware.pdbx 36KB

cvd.NETMF.USBClent.pe 8KB

MFConsoleApplication1.exe 5KB

cvd.NETMF.FEZ.pdbx 2KB

cvd.NETMF.oO.pdbx 2KB

cvd.NETMF.oO.pe 664B

pwm_example_v1.pdb 16KB

pwm_example_v1.pdbx 3KB

pwm_example_v1.exe 6KB

MFConsoleApplication1.pdb 14KB

GHIElectronics.NETMF.USBClient.xml 66KB

cvd.NETMF.oO.dll 5KB

cvd.NETMF.Hardware.xml 103KB

cvd.NETMF.USBClent.xml 66KB

GHIElectronics.NETMF.USBClient.dll 19KB

MFConsoleApplication1.exe 5KB

cvd.NETMF.oO.xml 25KB

cvd.NETMF.System.dll 9KB

pwm_example_v1.pdb 16KB

pwm_example_v1.pe 1KB

cvd.NETMF.FEZ.pe 900B

cvd.NETMF.Hardware.pe 8KB

cvd.NETMF.USBClent.pdbx 40KB

MFConsoleApplication1.pe 1KB

cvd.NETMF.System.pdbx 11KB

GHIElectronics.NETMF.USBClient.pdbx 40KB

cvd.NETMF.System.pe 2KB

GHIElectronics.NETMF.USBClient.pe 8KB

MFConsoleApplication1.pdbx 3KB

cvd.NETMF.Hardware.pdbx 36KB

cvd.NETMF.USBClent.pe 8KB

MFConsoleApplication1.exe 5KB

cvd.NETMF.FEZ.pdbx 2KB

cvd.NETMF.oO.pdbx 2KB

cvd.NETMF.oO.pe 664B

pwm_example_v1.pdb 16KB

pwm_example_v1.pdbx 3KB

pwm_example_v1.exe 6KB

MFConsoleApplication1.pdb 14KB

GHIElectronics.NETMF.Hardware.dll 16KB

pwm_example_v1.exe 6KB

cvd.NETMF.Hardware.dll 16KB

cvd.NETMF.FEZ.dll 6KB

MFConsoleApplication1.pdb 14KB

Program.cs 5KB

obj

Release

Debug

MFConsoleApplication1.csproj.FileListAbsolute.txt 5KB

MFConsoleApplication1.Resources.resources 221B

pwm_example_v1.pe 1KB

MFConsoleApplication1.pe 1KB

MFConsoleApplication1.pdbx 3KB

pwm_example_v1.pdbx 3KB

TinyResGen.cache 771B

MFConsoleApplication1.Resources.tinyresources 41B

GenerateResource.write.1.tlog 604B

pwm_example_v1.csproj.FileListAbsolute.txt 5KB

DesignTimeResolveAssemblyReferencesInput.cache 6KB

DesignTimeResolveAssemblyReferences.cache 2KB

GenerateResource.read.1.tlog 354B

MFConsoleApplication1.exe 5KB

TempPE

TinyCLR_DebugReferences.cache 44KB

pwm_example_v1.pdb 16KB

pwm_example_v1.pe 1KB

MFConsoleApplication1.pe 1KB

MFConsoleApplication1.pdbx 3KB

pwm_example_v1.pdbx 3KB

pwm_example_v1.exe 6KB

MFConsoleApplication1.pdb 14KB

Resources.resx 6KB

pwm_example_v1.csproj 3KB

pwm_example_v1.csproj.user 328B

Properties

AssemblyInfo.cs 911B

Resources.Designer.cs 1KB

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Projects\MFConsoleApplication1\bin\Debug\cvd.NETMF.System.xml C:\Users\Cavid\AppData\Local\Temporary Projects\MFConsoleApplication1\bin\Debug\cvd.NETMF.USBClent.xml C:\Users\Cavid\AppData\Local\Temporary Projects\MFConsoleApplication1\obj\Debug\ResolveAssemblyReference.cache C:\Users\Cavid\AppData\Local\Temporary Projects\MFConsoleApplication1\obj\Debug\TinyCLR_DebugReferences.cache C:\Users\Cavid\AppData\Local\Temporary Projects\MFConsoleApplication1\obj\Debug\MFConsoleApplication1.Resources.resources C:\Users\Cavid\AppData\Local\Temporary Projects\MFConsoleApplication1\obj\Debug\GenerateResource.read.1.tlog C:\Users\Cavid\AppData\Local\Temporary Projects\MFConsoleApplication1\obj\Debug\GenerateResource.write.1.tlog C:\Users\Cavid\AppData\Local\Temporary Projects\MFConsoleApplication1\obj\Debug\MFConsoleApplication1.Resources.tinyresources C:\Users\Cavid\AppData\Local\Temporary Projects\MFConsoleApplication1\obj\Debug\TinyResGen.cache C:\Users\Cavid\AppData\Local\Temporary 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