从代码禁用pyserial中的DTR

25-02-25 10

本文将带您了解关于从代码禁用pyserial中的DTR的新内容，另外，我们还将为您提供关于5行PHP代码禁用HTTP缓存、Code-Serialization：System.Web.Serializa

本文将带您了解关于从代码禁用pyserial中的DTR的新内容，另外，我们还将为您提供关于5 行 PHP 代码禁用 HTTP 缓存、Code-Serialization：System.Web.Serialization.JavaScriptSerializer.cs、com.esotericsoftware.kryo.serializers.DefaultArraySerializers.BooleanArraySerializer的实例源码、com.esotericsoftware.kryo.serializers.DefaultArraySerializers.CharArraySerializer的实例源码的实用信息。

本文目录一览：

从代码禁用pyserial中的DTR
5 行 PHP 代码禁用 HTTP 缓存
Code-Serialization：System.Web.Serialization.JavaScriptSerializer.cs
com.esotericsoftware.kryo.serializers.DefaultArraySerializers.BooleanArraySerializer的实例源码
com.esotericsoftware.kryo.serializers.DefaultArraySerializers.CharArraySerializer的实例源码

从代码禁用pyserial中的DTR

我正在尝试使用pyserial将数据发送到arduino。但是，当我打开COM端口时，它会将DTR设置为低电平并重置板。但是，我已经设置了arduino代码，因此必须按住两个按钮1秒钟，使其进入串行接收模式。如果可能的话，我宁愿不必在arduino引导时进行串行输入。

显然，您可以修改serialWin32.py文件，更改以下内容：

self._dtrState = win32.DTR_CONTROL_ENABLE

至：

self._dtrState = win32.DTR_CONTROL_DISABLE

但是，有什么方法可以直接在我的python脚本中直接禁用它吗？我还需要对所有系统执行此操作。我不想强迫人们仅使用此脚本来更改其基本串行配置。

串行端口如下打开：

 com = serial.Serial(port,baud,timeout=1);

更新：
最后，我找到了一种适用于我的设置的解决方案。因为我不需要一直都做串行数据，所以只有当我将设备置于串行接收模式时，我才找到了一种从arduino本身禁用串行连接重置的方法。

许多帖子说，可以通过在5V和复位之间放置一个〜100
Ohm电阻来禁用DTR复位。但是我不希望这成为永久的事情。因此，我在PD5和复位之间放置了一个电阻。然后，在软件中：

void setup() {
    //.......
    DDRD &= ~(_BV(PD5)); //Set PD5 as input initially
    PORTD |= (_BV(PD5)); //Set high
    //.......
}

inline void setResetDisable(bool state)
{
  if(state)
    DDRD |= (_BV(PD5)); //Set PD5 as output to put 5V on reset line
  else
    DDRD &= ~(_BV(PD5)); //set back to input mode
}

所以现在，当我想进入串行模式时，我调用setResetDisable（true），该电阻在100欧姆电阻和复位引脚上抛出5V电压，从而防止DTR将其拉低并复位芯片:)然后我只调用setResetDisable（false
），当我退出串行模式时，可以正常编程该芯片。

5 行 PHP 代码禁用 HTTP 缓存

　　header("Content-Type: application/json");

　　header("Expires: 0");

　　header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");

　　header("Cache-Control: no-store, no-cache, must-revalidate");

　　header("Cache-Control: post-check=0, pre-check=0", false);

　　header("Pragma: no-cache");

Code-Serialization：System.Web.Serialization.JavaScriptSerializer.cs

ylbtech-Code-Serialization：System.Web.Serialization.JavaScriptSerializer.cs

1.返回顶部

1、

using System;
using System.Collections.Generic;
using System.Web.Script.Serialization;  //引用序列化类库

public partial class _Default : System.Web.UI.Page
{
    /// <summary>
    /// 应对 Json.NET 使用序列化和反序列化。 为启用 AJAX 的应用程序提供序列化和反序列化功能。
    /// ByYlbtech
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void Page_Load(object sender, EventArgs e)
    {
        var RegisteredUsers = new List<Person>();
        RegisteredUsers.Add(new Person() { PersonID = 1, Name = "Bryon Hetrick", Registered = true });
        RegisteredUsers.Add(new Person() { PersonID = 2, Name = "Nicole Wilcox", Registered = true });
        RegisteredUsers.Add(new Person() { PersonID = 3, Name = "Adrian Martinson", Registered = false });
        RegisteredUsers.Add(new Person() { PersonID = 4, Name = "Nora Osborn", Registered = false });

        // 1、创建JavaScriptSerializer
        var serializer = new JavaScriptSerializer();

        // 2、序列化
        // 将对象转换为 JSON 字符串
        var serializedResult = serializer.Serialize(RegisteredUsers);
        // Produces string value of:
        // [
        //     {"PersonID":1,"Name":"Bryon Hetrick","Registered":true},
        //     {"PersonID":2,"Name":"Nicole Wilcox","Registered":true},
        //     {"PersonID":3,"Name":"Adrian Martinson","Registered":false},
        //     {"PersonID":4,"Name":"Nora Osborn","Registered":false}
        // ]

        // 3、反序列化
        // 将指定的 JSON 字符串转换为 T 类型的对象
        var deserializedResult = serializer.Deserialize<List<Person>>(serializedResult);
        // Produces List with 4 Person objects
    }
    /// <summary>
    /// Person实体类
    /// </summary>
    public class Person {
        /// <summary>
        /// 编号【PK】
        /// </summary>
        public int PersonID { get; set; }
        /// <summary>
        /// 姓名
        /// </summary>
        public string Name { get; set; }
        /// <summary>
        /// 是否注册
        /// </summary>
        public bool Registered { get; set; }
    }
}

2、

2.返回顶部

3.返回顶部

4.返回顶部

5.返回顶部

6.返回顶部

作者：ylbtech
出处：http://ylbtech.cnblogs.com/
本文版权归作者和博客园共有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接，否则保留追究法律责任的权利。

com.esotericsoftware.kryo.serializers.DefaultArraySerializers.BooleanArraySerializer的实例源码

项目：Esperdist 文件：Kryo.java

/** @param referenceResolver May be null to disable references. */
public Kryo (ClassResolver classResolver,ReferenceResolver referenceResolver,StreamFactory streamFactory) {
    if (classResolver == null) throw new IllegalArgumentException("classResolver cannot be null.");

    this.classResolver = classResolver;
    classResolver.setKryo(this);

    this.streamFactory = streamFactory;
    streamFactory.setKryo(this);

    this.referenceResolver = referenceResolver;
    if (referenceResolver != null) {
        referenceResolver.setKryo(this);
        references = true;
    }

    addDefaultSerializer(byte[].class,ByteArraySerializer.class);
    addDefaultSerializer(char[].class,ChararraySerializer.class);
    addDefaultSerializer(short[].class,ShortArraySerializer.class);
    addDefaultSerializer(int[].class,IntArraySerializer.class);
    addDefaultSerializer(long[].class,LongArraySerializer.class);
    addDefaultSerializer(float[].class,FloatArraySerializer.class);
    addDefaultSerializer(double[].class,DoubleArraySerializer.class);
    addDefaultSerializer(boolean[].class,BooleanArraySerializer.class);
    addDefaultSerializer(String[].class,StringArraySerializer.class);
    addDefaultSerializer(Object[].class,ObjectArraySerializer.class);
    addDefaultSerializer(KryoSerializable.class,KryoSerializableSerializer.class);
    addDefaultSerializer(BigInteger.class,BigIntegerSerializer.class);
    addDefaultSerializer(BigDecimal.class,BigDecimalSerializer.class);
    addDefaultSerializer(Class.class,ClassSerializer.class);
    addDefaultSerializer(Date.class,DateSerializer.class);
    addDefaultSerializer(Enum.class,EnumSerializer.class);
    addDefaultSerializer(EnumSet.class,EnumSetSerializer.class);
    addDefaultSerializer(Currency.class,CurrencySerializer.class);
    addDefaultSerializer(StringBuffer.class,StringBufferSerializer.class);
    addDefaultSerializer(StringBuilder.class,StringBuilderSerializer.class);
    addDefaultSerializer(Collections.EMPTY_LIST.getClass(),CollectionsEmptyListSerializer.class);
    addDefaultSerializer(Collections.EMPTY_MAP.getClass(),CollectionsEmptyMapSerializer.class);
    addDefaultSerializer(Collections.EMPTY_SET.getClass(),CollectionsEmptySetSerializer.class);
    addDefaultSerializer(Collections.singletonList(null).getClass(),CollectionsSingletonListSerializer.class);
    addDefaultSerializer(Collections.singletonMap(null,null).getClass(),CollectionsSingletonMapSerializer.class);
    addDefaultSerializer(Collections.singleton(null).getClass(),CollectionsSingletonSetSerializer.class);
    addDefaultSerializer(TreeSet.class,TreeSetSerializer.class);
    addDefaultSerializer(Collection.class,CollectionSerializer.class);
    addDefaultSerializer(TreeMap.class,TreeMapSerializer.class);
    addDefaultSerializer(Map.class,MapSerializer.class);
    addDefaultSerializer(TimeZone.class,TimeZoneserializer.class);
    addDefaultSerializer(Calendar.class,CalendarSerializer.class);
    addDefaultSerializer(Locale.class,LocaleSerializer.class);
    lowPriorityDefaultSerializerCount = defaultSerializers.size();

    // Primitives and string. Primitive wrappers automatically use the same registration as primitives.
    register(int.class,new IntSerializer());
    register(String.class,new StringSerializer());
    register(float.class,new FloatSerializer());
    register(boolean.class,new BooleanSerializer());
    register(byte.class,new ByteSerializer());
    register(char.class,new CharSerializer());
    register(short.class,new ShortSerializer());
    register(long.class,new LongSerializer());
    register(double.class,new DoubleSerializer());
    register(void.class,new VoidSerializer());

    // Lambdas support
    // Enable only if JVM supports it
    try {
        String version = System.getProperty("java.version");
        char minor = version.charat(2);
        if (minor >= '8') {
            register(Class.forName("java.lang.invoke.SerializedLambda"));
            register(Closure.class,(Serializer)Class.forName("com.esotericsoftware.kryo.serializers.ClosureSerializer")
                .newInstance());
        }
    } catch (Exception e) {
        Log.trace("Serialization of Java8 lambdas is not available on this system.");
    }
}

项目：Esperdist 文件：Kryo.java

/** @param referenceResolver May be null to disable references. */
public Kryo (ClassResolver classResolver,new VoidSerializer());
}

项目：journeyPlanner 文件：Kryo.java

/** @param referenceResolver May be null to disable references. */
public Kryo (ClassResolver classResolver,(Serializer)Class.forName("com.esotericsoftware.kryo.serializers.ClosureSerializer")
                .newInstance());
        }
    } catch (Exception e) {
        Log.trace("Serialization of Java8 lambdas is not available on this system.");
    }
}

项目：kryo-mavenized 文件：Kryo.java

/** @param referenceResolver May be null to disable references. */
public Kryo (ClassResolver classResolver,ObjectArraySerializer.class);
    addDefaultSerializer(BigInteger.class,CollectionsSingletonSetSerializer.class);
    addDefaultSerializer(Collection.class,MapSerializer.class);
    addDefaultSerializer(KryoSerializable.class,KryoSerializableSerializer.class);
    addDefaultSerializer(TimeZone.class,CalendarSerializer.class);
    lowPriorityDefaultSerializerCount = defaultSerializers.size();

    // Primitives and string. Primitive wrappers automatically use the same registration as primitives.
    register(int.class,new DoubleSerializer());
}

com.esotericsoftware.kryo.serializers.DefaultArraySerializers.CharArraySerializer的实例源码

项目：Esperdist 文件：Kryo.java

/** @param referenceResolver May be null to disable references. */
public Kryo (ClassResolver classResolver,ReferenceResolver referenceResolver,StreamFactory streamFactory) {
    if (classResolver == null) throw new IllegalArgumentException("classResolver cannot be null.");

    this.classResolver = classResolver;
    classResolver.setKryo(this);

    this.streamFactory = streamFactory;
    streamFactory.setKryo(this);

    this.referenceResolver = referenceResolver;
    if (referenceResolver != null) {
        referenceResolver.setKryo(this);
        references = true;
    }

    addDefaultSerializer(byte[].class,ByteArraySerializer.class);
    addDefaultSerializer(char[].class,ChararraySerializer.class);
    addDefaultSerializer(short[].class,ShortArraySerializer.class);
    addDefaultSerializer(int[].class,IntArraySerializer.class);
    addDefaultSerializer(long[].class,LongArraySerializer.class);
    addDefaultSerializer(float[].class,FloatArraySerializer.class);
    addDefaultSerializer(double[].class,DoubleArraySerializer.class);
    addDefaultSerializer(boolean[].class,BooleanArraySerializer.class);
    addDefaultSerializer(String[].class,StringArraySerializer.class);
    addDefaultSerializer(Object[].class,ObjectArraySerializer.class);
    addDefaultSerializer(KryoSerializable.class,KryoSerializableSerializer.class);
    addDefaultSerializer(BigInteger.class,BigIntegerSerializer.class);
    addDefaultSerializer(BigDecimal.class,BigDecimalSerializer.class);
    addDefaultSerializer(Class.class,ClassSerializer.class);
    addDefaultSerializer(Date.class,DateSerializer.class);
    addDefaultSerializer(Enum.class,EnumSerializer.class);
    addDefaultSerializer(EnumSet.class,EnumSetSerializer.class);
    addDefaultSerializer(Currency.class,CurrencySerializer.class);
    addDefaultSerializer(StringBuffer.class,StringBufferSerializer.class);
    addDefaultSerializer(StringBuilder.class,StringBuilderSerializer.class);
    addDefaultSerializer(Collections.EMPTY_LIST.getClass(),CollectionsEmptyListSerializer.class);
    addDefaultSerializer(Collections.EMPTY_MAP.getClass(),CollectionsEmptyMapSerializer.class);
    addDefaultSerializer(Collections.EMPTY_SET.getClass(),CollectionsEmptySetSerializer.class);
    addDefaultSerializer(Collections.singletonList(null).getClass(),CollectionsSingletonListSerializer.class);
    addDefaultSerializer(Collections.singletonMap(null,null).getClass(),CollectionsSingletonMapSerializer.class);
    addDefaultSerializer(Collections.singleton(null).getClass(),CollectionsSingletonSetSerializer.class);
    addDefaultSerializer(TreeSet.class,TreeSetSerializer.class);
    addDefaultSerializer(Collection.class,CollectionSerializer.class);
    addDefaultSerializer(TreeMap.class,TreeMapSerializer.class);
    addDefaultSerializer(Map.class,MapSerializer.class);
    addDefaultSerializer(TimeZone.class,TimeZoneserializer.class);
    addDefaultSerializer(Calendar.class,CalendarSerializer.class);
    addDefaultSerializer(Locale.class,LocaleSerializer.class);
    lowPriorityDefaultSerializerCount = defaultSerializers.size();

    // Primitives and string. Primitive wrappers automatically use the same registration as primitives.
    register(int.class,new IntSerializer());
    register(String.class,new StringSerializer());
    register(float.class,new FloatSerializer());
    register(boolean.class,new BooleanSerializer());
    register(byte.class,new ByteSerializer());
    register(char.class,new CharSerializer());
    register(short.class,new ShortSerializer());
    register(long.class,new LongSerializer());
    register(double.class,new DoubleSerializer());
    register(void.class,new VoidSerializer());

    // Lambdas support
    // Enable only if JVM supports it
    try {
        String version = System.getProperty("java.version");
        char minor = version.charat(2);
        if (minor >= '8') {
            register(Class.forName("java.lang.invoke.SerializedLambda"));
            register(Closure.class,(Serializer)Class.forName("com.esotericsoftware.kryo.serializers.ClosureSerializer")
                .newInstance());
        }
    } catch (Exception e) {
        Log.trace("Serialization of Java8 lambdas is not available on this system.");
    }
}

项目：Esperdist 文件：Kryo.java

/** @param referenceResolver May be null to disable references. */
public Kryo (ClassResolver classResolver,new VoidSerializer());
}

项目：journeyPlanner 文件：Kryo.java

/** @param referenceResolver May be null to disable references. */
public Kryo (ClassResolver classResolver,(Serializer)Class.forName("com.esotericsoftware.kryo.serializers.ClosureSerializer")
                .newInstance());
        }
    } catch (Exception e) {
        Log.trace("Serialization of Java8 lambdas is not available on this system.");
    }
}

项目：kryo-mavenized 文件：Kryo.java

/** @param referenceResolver May be null to disable references. */
public Kryo (ClassResolver classResolver,ObjectArraySerializer.class);
    addDefaultSerializer(BigInteger.class,CollectionsSingletonSetSerializer.class);
    addDefaultSerializer(Collection.class,MapSerializer.class);
    addDefaultSerializer(KryoSerializable.class,KryoSerializableSerializer.class);
    addDefaultSerializer(TimeZone.class,CalendarSerializer.class);
    lowPriorityDefaultSerializerCount = defaultSerializers.size();

    // Primitives and string. Primitive wrappers automatically use the same registration as primitives.
    register(int.class,new DoubleSerializer());
}

关于从代码禁用pyserial中的DTR的介绍现已完结，谢谢您的耐心阅读，如果想了解更多关于5 行 PHP 代码禁用 HTTP 缓存、Code-Serialization：System.Web.Serialization.JavaScriptSerializer.cs、com.esotericsoftware.kryo.serializers.DefaultArraySerializers.BooleanArraySerializer的实例源码、com.esotericsoftware.kryo.serializers.DefaultArraySerializers.CharArraySerializer的实例源码的相关知识，请在本站寻找。

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