/// <summary>
/// 清空缓冲区数据
/// </summary>
/// <param name="func">0清空输入,1清空输出,2清空输入输出</param>
public void ClearBuffer(int func)
{
try
{
int result = PcommApi.sio_flush(PortIndex, func);
GetErrorCode(result);
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 设置端口的参数
/// </summary>
public void SetIoctl()
{
try
{
int result = PcommApi.sio_ioctl(PortIndex, (int)baudrate, (int)databit | (int)stopbit | (int)parity);
GetErrorCode(result);
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 写入缓冲的数据
/// </summary>
/// <param name="by">数组集合</param>
/// <param name="len">写入的长度</param>
public void Write(byte[] by, int len)
{
try
{
int result = PcommApi.sio_write(PortIndex, by, len);
GetErrorCode(result);
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 关闭端口
/// </summary>
public void Close()
{
try
{
if (PortIndex == -1)
{
return;
}
int result = PcommApi.sio_close(PortIndex);
GetErrorCode(result);
PortIndex = -1;
_portname = string.Empty;
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 打开端口
/// </summary>
public void Open()
{
try
{
if (PortIndex < 0 || PortIndex > 255)
{
throw new ArgumentOutOfRangeException("PortIndex");
}
int result = PcommApi.sio_open(PortIndex);
GetErrorCode(result);
SetIoctl();
//result = WinApi.sio_SetWriteTimeouts(PortIndex, 100);
//GetErrorCode(result);
if (portdatareceived != null)
{
PcommApi.sio_cnt_irq(PortIndex, portdatareceived, 1);
}
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 获取缓冲区数据的长度
/// </summary>
/// <returns></returns>
public int GetBytesToRead()
{
return(PcommApi.sio_iqueue(PortIndex));
}