短信收发类SerialStream.cs的用例--SerialStreamReader.cs

最新推荐文章于 2024-05-24 21:51:51 发布

最新推荐文章于 2024-05-24 21:51:51 发布 · 78 阅读

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本文介绍了一个使用C#实现的串口通信示例程序。该程序通过COM2端口发送命令，并读取返回的响应。它设置了波特率为9600，并配置了超时时间为20毫秒。

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using System;
using System.IO;
using System.Threading;

using LoMaN.IO;

namespace SerialStreamReader {

class App {

// The main serial stream
static SerialStream ss;

[STAThread]
static void Main(string[] args) {

// Create a serial port
ss = new SerialStream();
try {
ss.Open("COM2");
}
catch (Exception e) {
Console.WriteLine("Error: " + e.Message);
return;
}

// Set port settings
ss.SetPortSettings(9600);

// Set timeout so read ends after 20ms of silence after a response
ss.SetTimeouts(20, 0, 0, 0, 0);

// Create the StreamWriter used to send commands
StreamWriter sw = new StreamWriter(ss, System.Text.Encoding.ASCII);

// Create the Thread used to read responses
Thread responseReaderThread = new Thread(new ThreadStart(ReadResponseThread));
responseReaderThread.Start();

// Read all returned lines
for (;;) {
// Read command from console
string command = Console.ReadLine();

// Check for exit command
if (command.Trim().ToLower() == "exit") {
responseReaderThread.Abort();
break;
}

// Write command to modem
sw.WriteLine(command);
sw.Flush();
}
}

// Main loop for reading responses
static void ReadResponseThread() {
StreamReader sr = new StreamReader(ss, System.Text.Encoding.ASCII);
try {
for (;;) {
// Read response from modem
string response = sr.ReadLine();
Console.WriteLine("Response: " + response);
}
}
catch (ThreadAbortException) {
}
}
}
}