图中的串口测试工具可以接收到一条反馈码,我自己写的winform却接收不到,哪位大神了解串口工具的源码或者知道我的代码怎么改嘛,哪位大神指点一下,万分感谢!
int n = sc._serialPort.BytesToRead;
StringBuilder builder=new StringBuilder();
byte[] rec = new byte[n]; //新建一个接受数组
sc._serialPort.Read(rec, 0, n); //将串口接收到的数据写入接收数组
//sc.DataReceived(object sender, EventArgs e, rec);
builder.Append(Encoding.ASCII.GetString(rec));
这个是我自己写的,获取不到东西,还有一个是别人提供的写好的
public SerialPort _serialPort = null;
//定义委托
public delegate void SerialPortDataReceiveEventArgs(object sender, SerialDataReceivedEventArgs e, byte[] bits);
//定义接收数据事件
public event SerialPortDataReceiveEventArgs DataReceived;
void _serialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
if (DataReceived != null)
{
byte[] _data = new byte[_serialPort.BytesToRead];
_serialPort.Read(_data, 0, _data.Length);
DataReceived(sender, e, _data);
//a += _data.Length;
//rec += System.Text.Encoding.Default.GetString(_data)+_data.Length;
}
}
可是这两种都接收不到东西,请大神指教一下我应该怎么改写这两个函数或者是怎样写