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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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namespace USB2XXX
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{
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class CAN_UDS
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{
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//CAN UDS地址定义
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
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public struct CAN_UDS_ADDR
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{
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public UInt32 ReqID; //请求报文ID。
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public UInt32 ResID; //应答报文ID。
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public Byte Flag; //bit[0]-帧类型(0-标准帧，1-扩展帧),bit[1]-FDF(0-普通CAN帧，1-CANFD帧),bit[2]-BRS(0-CANFD帧不加速，1-CANFD帧加速)
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public Byte AddrFormats; //0-normal, 1-extended ,2-mixed
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public Byte AddrExt; //当AddrFormats不为normal时，该数据放到CAN数据域第1字节
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public Byte MaxDLC; //普通CAN设置为8，CANFD帧可以最大设置为64
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};
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//函数返回错误代码定义
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public const Int32 CAN_UDS_OK = 0;
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public const Int32 CAN_UDS_TRAN_USB = -98;
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public const Int32 CAN_UDS_TRAN_CAN = -99;
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public const Int32 CAN_UDS_TIMEOUT_A = -100;
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public const Int32 CAN_UDS_TIMEOUT_Bs = -101;
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public const Int32 CAN_UDS_TIMEOUT_Cr = -102;
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public const Int32 CAN_UDS_WRONG_SN = -103;
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public const Int32 CAN_UDS_INVALID_FS = -104;
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public const Int32 CAN_UDS_UNEXP_PDU = -105;
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public const Int32 CAN_UDS_WFT_OVRN = -106;
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public const Int32 CAN_UDS_BUFFER_OVFLW = -107;
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public const Int32 CAN_UDS_ERROR = -108;
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//USB2CAN相关函数定义
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[DllImport("USB2XXX.dll")]
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public static extern Int32 CAN_UDS_Request(Int32 DevHandle, Byte CANIndex, ref CAN_UDS_ADDR UDSAddr, Byte[] pReqData, Int32 DataLen);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 CAN_UDS_Response(Int32 DevHandle, Byte CANIndex, ref CAN_UDS_ADDR UDSAddr, Byte[] pResData, Int32 TimeOutMs);
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}
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}
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