public void comm_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
int i;
try
{
byte[] framebuffer = new byte[128];
byte frametype = 0;
int n = CVar.GetComm().BytesToRead;//先记录下来，避免某种原因，人为的原因，操作几次之间时间长，缓存不一致
if (n == 0)
{
return;
}
byte[] buf = new byte[n]; //声明一个临时数组存储当前来的串口数据
received_count += n; //增加接收计数
comm.Read(buf, 0, n); //读取缓冲数据
//Add receive data to que
for (i = 0; i < n; i++)
{
FifoClass.EnFifo(buf[i]);
}
if (GetFrame(ref framebuffer, ref frametype) > 0)
{
st_CommParaSet commPara = new st_CommParaSet();
commPara = (st_CommParaSet)CommProtocol.BytesToStruct(framebuffer, commPara.GetType());
UploadData.hall_angle = commPara.hall_angle;
UploadData.zeroAngle = commPara.hall_zero_angle;
UploadData.hall_x = commPara.hall_x;
UploadData.hall_y = commPara.hall_y;
UploadData.maxDegree = commPara.maxDegree;
UploadData.maxCurrent = commPara.maxCurrent;
UploadData.Kp = commPara.pid_p;
UploadData.Ki = commPara.pid_i;
UploadData.Ke1 = commPara.pid_ke1;
UploadData.Ke2 = commPara.pid_ke2;
UploadData.reversse = commPara.reverse;
UploadData.run2zero = commPara.run2zero;
UploadData.traceMode = commPara.traceMode;
}
}
finally
{
}
}
private void buttonOpenClose_Click(object sender, EventArgs e)
{
if (buttonOpenClose.Text == "关闭")
{
if (comm.IsOpen)
{
comm.Close();
}
buttonOpenClose.Text = "打开";
return;
}
//根据当前串口对象，来判断操作
if (comm == null)
{
//关闭时点击，则设置好端口，波特率后打开
comm.PortName = comboPortName.Text;
comm.BaudRate = int.Parse(comboBaudrate.Text);
comm.DataBits = 8;
comm.Parity = Parity.None;
comm.StopBits = StopBits.One;
comm.WriteBufferSize = 1024 * 1024 * 5;
comm.ReadBufferSize = 1024 * 1024 * 5;
try
{
comm.Open();
MessageBox.Show("串口已打开");
}
catch (Exception ex)
{
//捕获到异常信息，创建一个新的comm对象，之前的不能用了。
comm = new SerialPort();
//现实异常信息给客户。
MessageBox.Show(ex.Message);
}
}
else
{
if (comm.IsOpen)
{
while (CVar.GetCommBusy())
{
Application.DoEvents();
}
//打开时点击，则关闭串口
comm.Close();
MessageBox.Show("串口已关闭");
}
else
{
//关闭时点击，则设置好端口，波特率后打开
comm.PortName = comboPortName.Text;
comm.BaudRate = int.Parse(comboBaudrate.Text);
comm.DataBits = 8;
comm.Parity = Parity.Even;
comm.StopBits = StopBits.One;
comm.WriteBufferSize = 1024 * 1024 * 5;
comm.ReadBufferSize = 1024 * 1024 * 5;
try
{
comm.Open();
MessageBox.Show("串口已打开");
}
catch (Exception ex)
{
//捕获到异常信息，创建一个新的comm对象，之前的不能用了。
comm = new SerialPort();
//现实异常信息给客户。
MessageBox.Show(ex.Message);
}
}
}
//设置按钮的状态
buttonOpenClose.Text = comm.IsOpen ? "关闭" : "打开";
if (comm.IsOpen)
{
CommPara.portnum = comm.PortName;
CommPara.baudrate = comm.BaudRate;
CommPara.ParaWrite();
CVar.form1.button1.Text = CommPara.portnum.ToString() + "已打开";
comm.DataReceived += CVar.form1.comm_DataReceived;
}
}
public static void SendCmd(byte Cmd)
{
MakeFrame(Cmd);
CVar.GetComm().Write(FrameBuffer, 0, Marshal.SizeOf(commPara));
}