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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Runtime.InteropServices;
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//注意：使用这些函数需要1.5.30及以上的固件才支持
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namespace USB2XXX
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{
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class USB2ELINS
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{
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//定义函数返回错误代码
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public const int ELINS_SUCCESS = (0); //函数执行成功
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public const int ELINS_ERR_NOT_SUPPORT = (-1); //适配器不支持该函数
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public const int ELINS_ERR_USB_WRITE_FAIL = (-2); //USB写数据失败
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public const int ELINS_ERR_USB_READ_FAIL = (-3); //USB读数据失败
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public const int ELINS_ERR_CMD_FAIL = (-4); //命令执行失败
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public const int ELINS_ERR_PARAMETER = (-5); //参数错误
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//命令值宏定义
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public const byte ELINS_CMD_SDW = 2; //Single Device Write
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public const byte ELINS_CMD_SDR = 3; //Single Device Read
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public const byte ELINS_CMD_BW = 4; //Broadcast Write
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public const byte ELINS_CMD_EBW = 5; //Enhance Broadcast Write
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public const byte ELINS_CMD_ESDW = 6; //Enhance Single Device Write
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public const byte ELINS_CMD_ESDR = 7; //Enhance Single Device Read
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//消息状态定义
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public const byte ELINS_STATUS_NACK = 0x01;//写无应答(非广播帧)
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public const byte ELINS_STATUS_RNRES = 0x02;//读数据无应答
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public const byte ELINS_STATUS_ECRC = 0x04;//CRC校验错误
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public const byte ELINS_STATUS_FERR = 0x08;//帧异常，实际字节数跟规定的不匹配
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public const byte ELINS_STATUS_DLEN = 0x10;//实际数据字节数跟帧头字节数不匹配
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//ELINS帧类型定义
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
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public struct ELINS_MSG
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{
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[MarshalAs(UnmanagedType.U1)]
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public byte DataLen;//Data域中有效数据字节数
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[MarshalAs(UnmanagedType.U1)]
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public byte BreakBits; //发送同步间隔宽度
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[MarshalAs(UnmanagedType.U1)]
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public byte Status; //当前帧状态指示，比如帧数据异常可以在这里显示
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[MarshalAs(UnmanagedType.U1)]
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public byte Flags; ///<bit[0..1]表示通道号
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[MarshalAs(UnmanagedType.U1)]
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public byte SYNC; ///<固定为0x55
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[MarshalAs(UnmanagedType.U1)]
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public byte TimeStampHigh; //时间戳高位
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[MarshalAs(UnmanagedType.U2)]
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public short MsgSendTimes; //当前帧发送次数
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[MarshalAs(UnmanagedType.U4)]
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public uint TimeStamp; //时间戳低位，单位为10us
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[MarshalAs(UnmanagedType.U1)]
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public byte CmdCode; ///<命令
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[MarshalAs(UnmanagedType.U1)]
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public byte DevID;
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[MarshalAs(UnmanagedType.U2)]
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public short RegAddr;
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[MarshalAs(UnmanagedType.U2)]
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public short Crc16;
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.U1)]
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public byte[] Data; //数据
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.U1)]
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public byte[] ACKValue; //应答值
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}
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[DllImport("USB2XXX.dll")]
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public static extern int ELINS_Init(int DevHandle, byte Index, uint BaudRate, byte MasterMode, byte ResEnable, byte Ver);
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[DllImport("USB2XXX.dll")]
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public static extern int ELINS_MasterStartSch(int DevHandle, byte Index, ELINS_MSG[] pMsg, uint MsgLen, uint SendTimes, byte ReadBackFlag);
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[DllImport("USB2XXX.dll")]
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public static extern int ELINS_GetMsg(int DevHandle, byte Index, IntPtr pMsg, uint BufferSize);
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[DllImport("USB2XXX.dll")]
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public static extern int ELINS_MasterStopSch(int DevHandle, byte Index);
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[DllImport("USB2XXX.dll")]
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public static extern int ELINS_Stop(int DevHandle, byte Index);
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[DllImport("USB2XXX.dll")]
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public static extern int ELINS_GetStartTime(int DevHandle, byte Index);
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}
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}
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