internal void closeAllChannel()
{
for (DevAddress devAddr = DevAddress.SWITCH_BOARD_0; devAddr <= DevAddress.SWITCH_BOARD_9; devAddr++)
{
command(devAddr, DevFunction.SET_SWITCH_CHANNEL, DevChannel.CH_ALL, "0");
}
}
public void SetDeviceId(string a)
{
try
{
a = a.Substring(0, 4);
int num = (((Convert.ToInt16(a.Substring(0, 1)) * 0x1000) + (Convert.ToInt16(a.Substring(1, 1)) * 0x100)) + (Convert.ToInt16(a.Substring(2, 1)) * 0x10)) + Convert.ToInt16(a.Substring(3, 1));
for (int i = 0; i < (identification.Length / 4); i++)
{
if (num == identification[i, 3])
{
device_ID = (deviceID)identification[i, 0];
device_Addr = (DevAddress)identification[i, 1];
return;
}
}
}
catch (Exception)
{
}
}
/// <summary>
/// 与设备通讯
/// </summary>
/// <param name="devAddr">设备地址</param>
/// <param name="devFunc">设备功能</param>
/// <param name="devCh">通道</param>
/// <param name="data">数据</param>
/// <returns>返回接受到的结果</returns>
public string command(DevAddress devAddr, DevFunction devFunc, DevChannel devCh, string data)
{
write_log(new StackFrame(1).GetMethod().Name);
if (ser == null)
{
MessageBox.Show("内部错误,无效的串口对象");
//throw new Exception("内部错误,无效的串口对象");
}
mut.WaitOne();
ser.Recive(1024, 1); //clear rbuffer
//WT 20170730
//修改包头和包尾
string cmdstr = String.Format(":{0}{1}{2}{3}{4}=",
data.Length,
((char)devAddr).ToString(),
((char)devFunc).ToString(),
((char)devCh).ToString(),
data);
int trys = 3;
while (trys-- > 0)
{
try
{
write_log("send command: " + cmdstr);
ser.Send(cmdstr);
//WT 20170730
//添加80m延时
//对于获取测量结果的命令，发送数据是异步的。
//接收到命令后后会在约100 -200ms后完成采样和转换并回复结果.
//增大串口接收的字节数保证数据每次能被接收到（115200bps接收1000字节约需90ms）
Thread.Sleep(80);
string resstr = ser.ReciveString(1000);
write_log("recv result: " + resstr);
int n = resstr.IndexOf("#"); //检查开始字符
string slen = resstr.Substring(n + 1, 1); //获取长度
int len = int.Parse(slen);
DevAddress addr = (DevAddress)(resstr[n + 2]);
DevFunction func = (DevFunction)(resstr[n + 3]);
DevChannel ch = (DevChannel)(resstr[n + 4]);
//WT 20170730
//不去判断通道回复是否一致
//在关闭某通道时，如果恰好是所有开关板都被关闭，会回复所有通道关闭
if (addr != devAddr || func != devFunc) //|| ch != devCh) //判断回复是否一致
{
throw new Exception();
}
string res = len > 0?resstr.Substring(n + 5, len):""; //获取返回结果数据
string end = resstr.Substring(n + 5 + len, 1); //检查结尾字符
if (end != "*")
{
throw new Exception();
}
mut.ReleaseMutex();
return(res); //成功返回
}
catch {
continue;
}
}
mut.ReleaseMutex();
throw new Exception("Device send command, but recive error, cmd: " + cmdstr);
}
