西安软件开发之串口开发
日期:2018-8-20  发布人:润宇软件  浏览量:2
 

1.字符发送

1   string strSend = "00 01 02 03";
2   serialPort1.Write(strSend);

 

2.字符接收

1 ReadDataFromSerial Rdfs_str = new ReadDataFromSerial(DataShowMthod);
2 Serialdata = serialPort1.ReadExisting();
3 Invoke(Rdfs_str);

 

1 this.txtDataReceive.Text +=Serialdata;

3.ASCII发送

 
1   string strSend = "00 01 02 03";
2   string str = strSend.Replace(" ","");
3   int len = str.Length / 2;
4   byte[] ret = new byte[len];
5   for(int i=0;i<len;i++)
6         ret[i]=(byte)(Convert.ToInt32(str.Substring(i*2,2),16));
7   serialPort1.Write(ret,0,ret.Length);
 

 

4.ASCII接收

方法1:

1 ReadDataFromSerial Rdfs_hex = new ReadDataFromSerial(DataShowMethod);
2 Serialdata = serialPort1.ReadExisting();
3 Invoke(Rdfs_hex);

 

1 string str="";
2 byte[] bt = System.Text.Encoding.Default.GetBytes(Serialdata);
3 for (int i = 0; i < bt.Length; i++)
4     str += bt[i].ToString("X2");
5 this.txtDataReceive.Text += str;

 

方法2:

1 byte[] bt=new byte[SP.BytesToRead];
2 SP.Read(bt,0,bt.Length);
3 for(int i=0;i<bt.Length;i++)
4     Str += bt[i].ToString("X2");