从串行端口读取二进制数据

发布于 2024-08-29 04:29:03 字数 633 浏览 5 评论 0原文

我之前一直使用 C# 通过串行端口从 GPS 读取 NMEA 数据。现在我正在做类似的事情，但不是来自串行的 GPS。我正在尝试阅读 TNC 的 KISS 声明。我正在使用这个事件处理程序。

comport.DataReceived += new SerialDataReceivedEventHandler(port_DataReceived);

这是 port_DataReceived。

        private void port_DataReceived(object sender, SerialDataReceivedEventArgs e)
    {
        string data = comport.ReadExisting();

        sBuffer = data;

        try
        {
            this.Invoke(new EventHandler(delegate { ProcessBuffer(sBuffer); }));
        }
        catch { }
    }

我遇到的问题是每个语句都会多次调用该方法。因此，仅使用部分语句调用 ProcessBuffer 方法。我如何阅读整个声明？

原文

I previously have been reading NMEA data from a GPS via a serial port using C#. Now I'm doing something similar, but instead of GPS from a serial. I'm attempting to read a KISS Statement from a TNC. I'm using this event handler.

comport.DataReceived += new SerialDataReceivedEventHandler(port_DataReceived);

Here is port_DataReceived.

        private void port_DataReceived(object sender, SerialDataReceivedEventArgs e)
    {
        string data = comport.ReadExisting();

        sBuffer = data;

        try
        {
            this.Invoke(new EventHandler(delegate { ProcessBuffer(sBuffer); }));
        }
        catch { }
    }

The problem I'm having is that the method is being called several times per statement. So the ProcessBuffer method is being called with only a partial statment. How can I read the whole statement?

分享到QQ

分享到微博