C# 编写的简单易懂的串口通讯代码带CRC校验 带详细的注释Word格式文档下载.docx
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C# 编写的简单易懂的串口通讯代码带CRC校验 带详细的注释Word格式文档下载.docx
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,"
gb2312"
fenge"
是否每字符用逗号分隔<
returns>
/returns>
publicstaticstringToHex(strings,stringcharset,boolfenge)
if((s.Length%2)!
=0)
s+="
"
;
//空格
//thrownewArgumentException("
sisnotvalidchinesestring!
"
);
}
System.Text.Encodingchs=System.Text.Encoding.GetEncoding(charset);
byte[]bytes=chs.GetBytes(s);
stringstr="
for(inti=0;
i<
bytes.Length;
i++)
str+=string.Format("
{0:
X}"
bytes[i]);
if(fenge&
&
(i!
=bytes.Length-1))
{0}"
"
returnstr.ToLower();
///从16进制转换成汉字
hex"
publicstaticstringUnHex(stringhex,stringcharset)
if(hex==null)
thrownewArgumentNullException("
hex=hex.Replace("
\n"
\\"
if(hex.Length%2!
hex+="
20"
hexisnotavalidnumber!
//需要将hex转换成byte数组。
byte[]bytes=newbyte[hex.Length/2];
try
//每两个字符是一个byte。
bytes[i]=byte.Parse(hex.Substring(i*2,2),
System.Globalization.NumberStyles.HexNumber);
catch
//Rethrowanexceptionwithcustommessage.
thrownewArgumentException("
hexisnotavalidhexnumber!
returnchs.GetString(bytes);
//________________________________________________________________________
classClass_SerialPort
publicstringToHex(strings,stringcharset,boolfenge)
#regionCRC校验
///CRC高位校验码checkCRCHigh
staticbyte[]ArrayCRCHigh=
0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,
0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,
0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,
0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,
0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,
0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,
0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,
0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,
0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,
0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,
0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,
0x80,0x41,0x00,0xC1,0x81,0x40
};
///CRC地位校验码checkCRCLow
staticbyte[]checkCRCLow=
0x00,0xC0,0xC1,0x01,0xC3,0x03,0x02,0xC2,0xC6,0x06,
0x07,0xC7,0x05,0xC5,0xC4,0x04,0xCC,0x0C,0x0D,0xCD,
0x0F,0xCF,0xCE,0x0E,0x0A,0xCA,0xCB,0x0B,0xC9,0x09,
0x08,0xC8,0xD8,0x18,0x19,0xD9,0x1B,0xDB,0xDA,0x1A,
0x1E,0xDE,0xDF,0x1F,0xDD,0x1D,0x1C,0xDC,0x14,0xD4,
0xD5,0x15,0xD7,0x17,0x16,0xD6,0xD2,0x12,0x13,0xD3,
0x11,0xD1,0xD0,0x10,0xF0,0x30,0x31,0xF1,0x33,0xF3,
0xF2,0x32,0x36,0xF6,0xF7,0x37,0xF5,0x35,0x34,0xF4,
0x3C,0xFC,0xFD,0x3D,0xFF,0x3F,0x3E,0xFE,0xFA,0x3A,
0x3B,0xFB,0x39,0xF9,0xF8,0x38,0x28,0xE8,0xE9,0x29,
0xEB,0x2B,0x2A,0xEA,0xEE,0x2E,0x2F,0xEF,0x2D,0xED,
0xEC,0x2C,0xE4,0x24,0x25,0xE5,0x27,0xE7,0xE6,0x26,
0x22,0xE2,0xE3,0x23,0xE1,0x21,0x20,0xE0,0xA0,0x60,
0x61,0xA1,0x63,0xA3,0xA2,0x62,0x66,0xA6,0xA7,0x67,
0xA5,0x65,0x64,0xA4,0x6C,0xAC,0xAD,0x6D,0xAF,0x6F,
0x6E,0xAE,0xAA,0x6A,0x6B,0xAB,0x69,0xA9,0xA8,0x68,
0x78,0xB8,0xB9,0x79,0xBB,0x7B,0x7A,0xBA,0xBE,0x7E,
0x7F,0xBF,0x7D,0xBD,0xBC,0x7C,0xB4,0x74,0x75,0xB5,
0x77,0xB7,0xB6,0x76,0x72,0xB2,0xB3,0x73,0xB1,0x71,
0x70,0xB0,0x50,0x90,0x91,0x51,0x93,0x53,0x52,0x92,
0x96,0x56,0x57,0x97,0x55,0x95,0x94,0x54,0x9C,0x5C,
0x5D,0x9D,0x5F,0x9F,0x9E,0x5E,0x5A,0x9A,0x9B,0x5B,
0x99,0x59,0x58,0x98,0x88,0x48,0x49,0x89,0x4B,0x8B,
0x8A,0x4A,0x4E,0x8E,0x8F,0x4F,0x8D,0x4D,0x4C,0x8C,
0x44,0x84,0x85,0x45,0x87,0x47,0x46,0x86,0x82,0x42,
0x43,0x83,0x41,0x81,0x80,0x40
///CRC校验
data"
校验的字节数组<
length"
校验的数组长度<
该字节数组的奇偶校验字节<
publicbyte[]CRC16(byte[]data,intarrayLength)//CRC校验
byteCRCHigh=0xFF;
//重置CRC高位校验码
byteCRCLow=0xFF;
//重置CRC低位校验码
byteindex;
inti=0;
while(arrayLength-->
0)
index=(System.Byte)(CRCHigh^data[i++]);
CRCHigh=(System.Byte)(CRCLow^ArrayCRCHigh[index]);
CRCLow=checkCRCLow[index];
byte[]ReturnData={data[0],data[1],data[2],data[3],CRCHigh,CRCLow};
//intCRC1=int.Parse(ReturnData[0].ToString());
//intCRC2=int.Parse(ReturnData[1].ToString());
//strings1=CRC1.ToString("
x"
//strings2=CRC2.ToString("
//byte[]Bytedata={byte.Parse(s1),byte.Parse(s2)};
returnReturnData;
#endregion
publicbyte[]TOHex(stringdata)//String转换为Hex码(即16进制数组)
intl=data.Length;
if(data.Length%2!
data+="
byte[]bytes=newbyte[data.Length/2];
bytes[i]=byte.Parse(data.Substring(i*2,2),
returnbytes;
publicbyte[]SendData(stringsenddata)//String转换为Hex码(即16进制数组)
byte[]bytes=newbyte[senddata.Length/2];
bytes[i]=Convert.ToByte(senddata.Substring(i*2,2),16);
Form代码
usingSystem.ComponentModel;
usingSystem.Data;
usingSystem.Drawing;
usingSystem.Windows.Forms;
publicpartialclassForm2:
Form
publicForm2()
InitializeComponent();
Class_SerialPortcp=newClass_SerialPort();
#region串口操作
///打开关闭串口
Protname"
设置串口号<
baudrate"
设置波特率<
privatevoidConnection(stringProtname,intbaudrate)//打开关闭串口
if(!
serialPort.IsOpen)//如果串口是关闭的
this.serialPort.PortName=Protname;
//设置COM端口名称SetPortName
this.serialPort.BaudRate=baudrate;
//设置波特率SetBaudRate
serialPort.Open();
//打开串口
cbx_SerialProt.Enabled=false;
//串口选择变为不可编辑
cbx_baud.Enabled=false;
//波特率选择变为不可编辑
btn_Open_SerialProt.Text="
关闭串口"
//打开串口按钮变更为“关闭串口”
catch(System.Exceptione){MessageBox.Show(e.ToString());
}//扑捉异常并返回异常信息
else//如果串口是打开的
serialPort.Close();
//关闭串口
cbx_SerialProt.Enabled=true;
//串口选择更改为可编辑
cbx_baud.Enabled=true;
//波特率选择便跟为可编辑
打开串口"
//打开串口按钮变更为“打开串口”
catch(System.Exceptione)//扑捉异常并返回异常信息
MessageBox.Show(e.ToString());
///数据发送
senddata"
输入待发送数组<
privatevoidSendData(Byte[]senddata)
if(senddata==null)//如果变量中无数据
MessageBox.Show("
请输入数据"
提示"
MessageBoxButtons.OK,MessageBoxIcon.Asterisk,MessageBoxDefaultButton.Button1);
else//变量中有数据
serialPort.IsOpen)//如果串口未打开
串口未初始化,请打开串口"
else//如果串口已经打开并且变量中有数据
serialPort.Write(senddata,0,senddata.Length);
//将指定数量的字节写入串行端口变量说明{(senddata“数组"
0"
起始字节"
senddata.Length“结束字节”)}
catch(System.Exceptione)
pr
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