/// ------------------------------------------------------------------------------
/// <summary>
/// 名 称: UARTport_recvData（串口接收事件的响应函数）
/// 功 能: 串口接收事件的响应
/// </summary>
/// <returns>无</returns>
/// ------------------------------------------------------------------------------
//-------------------------------串口接收事件的响应函数---------------------------
private void UARTport_recvData(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
{
int i;
//int tmp, brt;
string s1 = string.Empty;
Thread.Sleep(100);
PublicVar.g_ReceiveByteArray = uart1.recvData(); //调用串口接收函数
if (PublicVar.g_ReceiveByteArray == null)
{
return;
}
//if (PublicVar.g_ReceiveByteArray.Length > 0)
//{
// this.Txt_recv2.Text = "Interrupt--- " + System.Text.Encoding.Default.GetString(PublicVar.g_ReceiveByteArray);
// if (PublicVar.g_ReceiveByteArray[2] == 'M')
// {
// tmp = (int)(PublicVar.g_ReceiveByteArray[4] * 255 + PublicVar.g_ReceiveByteArray[3]);
// brt = (int)(PublicVar.g_ReceiveByteArray[6] * 255 + PublicVar.g_ReceiveByteArray[5]);
// }
//}
for (i = 0; i < PublicVar.g_ReceiveByteArray.Length; i++)
{
this.Txt_recv2.Text += "-" + PublicVar.g_ReceiveByteArray[i].ToString("D3") + " ";
}
}
/// ------------------------------------------------------------------------------
/// <summary>
///函数名:
///函数执行状态：
///参数说明：
///
///功能概要：
/// </summary>
/// ------------------------------------------------------------------------------
public byte[] PCNodeSendReturn(byte[] SendByteArray, int cnt, int time)
{
byte[] recvData = null;
int i;
try
{
for (i = 0; i < cnt; i++)
{
uart1.setReceInt(200); //测试串口接收中断使用
uart1.sendData(SendByteArray, SendByteArray.Length); // 通过串口发送数据
System.Threading.Thread.Sleep(time);
recvData = uart1.recvData(); // 通过串口接收数据
if (recvData.Length >= 1)
{
break;
}
}
}
catch
{
return(recvData); //产生错误,返回false
}
return(recvData); // 返回接收数据数据的首地址
}
/// ------------------------------------------------------------------------------
/// <summary>
/// 功 能:寻找PCNode。
/// 形 参:无
/// <returns>无</returns>
/// -----------------------------------------------------------------------------
public string findPCNode()
{
int i, j;
string s1;
int[] uartNoArray; //
System.IO.Ports.SerialPort uartport;
//1.临时变量
bool result = false; //
byte[] recvData = null; ////串口接收返回的信息
byte[] shakeframe = { (byte)'S', 11, (byte)'T', 0xa, 0x0,
(byte)'W', (byte)'h', (byte)'o', (byte)'a', (byte)'r',(byte)'e',
(byte)'y', (byte)'o', (byte)'u', (byte)'?',
(byte)'E', (byte)'N' };
//初始化内部调用函数临时变量
s1 = string.Empty; //初始化临时字符串（置空）
//创建_port1对象
uartport = new System.IO.Ports.SerialPort();
//查询所有串口，串口数在uartNoArray[0]中
uartNoArray = Uart.findCOM();
//没有找到串口情况
if (uartNoArray[0] == 0)
{
return(s1 = "没有找到USB串口");
}
//有找到串口情况，遍历搜寻串口
for (i = uartNoArray[0]; i >= 1; i--)
{
string comName = "COM" + uartNoArray[i].ToString(); //串口名称
//
uart1 = new Uart(uartport, comName, 9600); //初始化串口工具类
// pcNode1 = new PCNode(uart1); //初始化KW01操作工具类
//PE和PC节点握手
//s1 = shake(shakeframe); //与PC节点握手
//2.打开串口
result = uart1.open();
if (!result)
{
continue;
}
uart1.setReceInt(200); //设置触发DataRecieved事件的字节数（目的是关闭该事件）
result = uart1.sendData(shakeframe, shakeframe.Length); //发送握手数据
if (!result)
{
uart1.close(); continue;
}
//
System.Threading.Thread.Sleep(100); //线程休眠0.1s
recvData = uart1.recvData(); //接收数据
if (recvData == null || recvData.Length == 0 || recvData[0] != 'M')
{
uart1.close(); continue;
}
//将握手成功,数组转换成字符串,返回
for (j = 3; j < recvData[1] + 2; j++)
{
s1 += (char)recvData[j];
}
s1 = comName + ":" + s1;
break;
}
if (i == 0)
{
s1 = "有USB串口，但无PCNode";
}
return(s1);
}