public void ConnectStateCallback(MCUConnectState state)
{
Debug.Log("state = " + state);
if (state == MCUConnectState.connect)
{
KeyFlag.color = new Color(0.0f, 1.0f, 0.0f);
button0.enabled = true;
button1.enabled = true;
}
else
{
KeyFlag.color = new Color(0.0f, 0.0f, 0.0f);
button0.enabled = false;
button1.enabled = false;
}
}
private void ResetState()
{
lock (_lockObject)
{
if (_serialPort != null)
{
_serialPort.Close();
}
}
//JW.Common.Log.LogE("关闭串口：" + _portNames[_checkCount]);
_checkCount++;
if (_checkCount == _portNames.Length)
{
_checkCount = 0;
//得到的串口都检查一遍了，没有发现下位机，就重新获取串口列表重试
_state = 0;
}
else
{
//还有没有把所有的串口都尝试一遍，所以尝试下一个了哦
_state = 1;
}
_connectState = MCUConnectState.disconnect;
}
/// <summary>
/// 工作线程
/// </summary>
private void WorkThreadProcess()
{
while (true)
{
//状态0表示在搜索串口
if (_state == 0)
{
lock (_lockObject)
{
_portNames = SerialPort.GetPortNames();
}
if (_portNames == null || _portNames.Length == 0)
{
//JW.Common.Log.LogE("没有串口 等待重新检查");
_state = 0;
Thread.Sleep(5000);
}
else
{
JW.Common.Log.LogD("全部串口如下：");
foreach (var name in _portNames)
{
JW.Common.Log.LogD(name);
}
_state = 1;
Thread.Sleep(5);
}
}
//打开不同的串口
if (_state == 1)
{
try
{
string realName = string.Empty;
lock (_lockObject)
{
int index = _portNames[_checkCount].IndexOf("M");
int A = int.Parse(_portNames[_checkCount].Substring(index + 1));
if (A < 9)
{
realName = _portNames[_checkCount];
_serialPort = new SerialPort(_portNames[_checkCount], 19200, Parity.None, 8, StopBits.One);
}
else
{
realName = "\\\\.\\" + _portNames[_checkCount];
_serialPort = new SerialPort("\\\\.\\" + _portNames[_checkCount], 19200, Parity.None, 8, StopBits.One);
}
_serialPort.Open();
//下位机会10ms发送一次信息，这里设置40ms，是发送间隔的3+倍，只要下位机正常，肯定能收到完成的一帧。至于什么，自己根据采样定律想去！
_serialPort.ReadTimeout = 40;
}
//开始读取
_state = 2;
_frameState = 0;
_frameDataCount = 0;
_contentErrorNum = 0;
JW.Common.Log.LogD("打开串口成功：" + realName);
}
catch (IOException exp)
{
//JW.Common.Log.LogE("打开串口：" + _portNames[_checkCount] + "失败:" + exp.Message);
_checkCount++;
if (_checkCount == _portNames.Length)
{
//得到的串口都检查一遍了，没有发现下位机，就重新获取串口列表重试
_checkCount = 0;
_state = 0;
//JW.Common.Log.LogE("没找到串口 等待重试!");
}
_serialPort = null;
}
Thread.Sleep(5);
}
//读取串口数据
if (_state == 2)
{
try
{
int realReadNum;
lock (_lockObject)
{
realReadNum = _serialPort.Read(_readBytes, 0, 100);
}
for (int i = 0; i < realReadNum; i++)
{
switch (_frameState)
{
case 0:
if (_readBytes[i] == 0x55)
{
//有帧头了，就到接收其他的
_frameState = 1;
_frameDataCount = 0;
}
else
{
_contentErrorNum++;
}
break;
case 1:
_frameBytes[_frameDataCount++] = _readBytes[i];
if (_frameDataCount == 8)
{
if (_frameBytes[0] == _frameBytes[4] && _frameBytes[1] == _frameBytes[5] && _frameBytes[2] == _frameBytes[6])
{
_frameState = 2;
}
else
{
_frameState = 0;
_contentErrorNum++;
}
}
break;
case 2:
if (_readBytes[i] == 0xcc)
{
uint keyStateL = _frameBytes[0];
uint keyStateH = _frameBytes[1];
_keyState = keyStateL | (keyStateH << 8);
int tmpRotationCount = BitConverter.ToInt16(_frameBytes, 2);
//这是原子操作哦
Interlocked.Add(ref _rotationCount, tmpRotationCount);
_frameState = 0;
_contentErrorNum = 0;
//连接了
_connectState = MCUConnectState.connect;
}
else
{
_contentErrorNum++;
}
break;
default: break;
}
if (_contentErrorNum > 3)
{
//JW.Common.Log.LogE("McuInput 接收内容错误");
ResetState();
}
}
}
catch (TimeoutException)
{
//JW.Common.Log.LogE("McuInput 接收时间超时");
ResetState();
}
Thread.Sleep(5);
}
}
}
