public long GetReceivedCount()
{
return(ECANDLL.GetReceiveNum(deviceType, useDeviceIndex, useCANIndex));
}
/// <summary>
/// 下载
/// </summary>
/// <param name="data">下载的数据</param>
/// <param name="ctoBuffer">返回数据</param>
/// <param name="ctoBufferLength">返回数据长度</param>
/// <returns></returns>
public EcanXcpResult XCP_Download(byte[] data, out byte[] ctoBuffer, UInt16 ctoBufferLength)
{
ctoBuffer = new byte[ctoBufferLength];
CAN_OBJ frameInfo = new CAN_OBJ(); // 报文帧
UInt32 numOfFrameTX; // 实际发送帧数量
UInt32 numOfFrameRX; // 接收帧数量
#region Packet Identifier:CMD Command:DOWNLOAD
// 报文帧ID为
frameInfo.ID = masterID;
// 发送帧类型 正常发送
frameInfo.SendType = 0;
// 是否为远程帧 0为数据帧
frameInfo.RemoteFlag = 0;
// 是否为扩展帧 0为标准帧，11位帧ID
frameInfo.ExternFlag = 0;
// 数据长度
frameInfo.DataLen = (byte)(data.Length + 2);
// CAN报文的数据
frameInfo.data = new byte[8];
// 系统保留
//CANObj.Reserved = new byte[3];
frameInfo.data[0] = 0xF0;
frameInfo.data[1] = (byte)data.Length;
Array.Copy(data, 0, frameInfo.data, 2, data.Length); // 将Data复制到FrameInfo
if ((numOfFrameTX = ECANDLL.Transmit(deviceType, deviceIndex, canIndex, frameInfo, 1)) != 1) // 如果发送命令失败
{
// Function not available / Operation not implemented
return(EcanXcpResult.XCP_ERR_NOT_IMPLEMENTED);
}
#endregion
#region 读取应答数据
for (int i = 0; i < 5; i++) // 尝试读取5次
{
if ((numOfFrameRX = ECANDLL.GetReceiveNum(deviceType, deviceIndex, canIndex)) > 0) // 如果收到数据帧
{
numOfFrameRX = ECANDLL.Receive(deviceType, deviceIndex, canIndex, out frameInfo, 1, 10);
if (frameInfo.data[0] == 0xFF) // Packet Identifier:RES
{
ctoBuffer = frameInfo.data; // 回传接收到的数据
// Acknowledge / no error
return(EcanXcpResult.XCP_ERR_OK);
}
else if (frameInfo.data[0] == 0xFE) // Packet Identifier:ERR
{
ctoBuffer = frameInfo.data; // 回传接收到的数据
#region Error Code
switch (frameInfo.data[1]) // 返回 Error Code
{
case 0:
return(EcanXcpResult.XCP_ERR_CMD_SYNCH);
case 0x10:
return(EcanXcpResult.XCP_ERR_CMD_BUSY);
case 0x11:
return(EcanXcpResult.XCP_ERR_DAQ_ACTIVE);
case 0x12:
return(EcanXcpResult.XCP_ERR_PGM_ACTIVE);
case 0x20:
return(EcanXcpResult.XCP_ERR_CMD_UNKNOWN);
case 0x21:
return(EcanXcpResult.XCP_ERR_CMD_SYNTAX);
case 0x22:
return(EcanXcpResult.XCP_ERR_OUT_OF_RANGE);
case 0x23:
return(EcanXcpResult.XCP_ERR_WRITE_PROTECTED);
case 0x24:
return(EcanXcpResult.XCP_ERR_ACCESS_DENIED);
case 0x25:
return(EcanXcpResult.XCP_ERR_ACCESS_DENIED);
case 0x26:
return(EcanXcpResult.XCP_ERR_PAGE_NOT_VALID);
case 0x27:
return(EcanXcpResult.XCP_ERR_MODE_NOT_VALID);
case 0x28:
return(EcanXcpResult.XCP_ERR_SEGMENT_NOT_VALID);
case 0x29:
return(EcanXcpResult.XCP_ERR_SEQUENCE);
case 0x2A:
return(EcanXcpResult.XCP_ERR_DAQ_CONFIG);
case 0x30:
return(EcanXcpResult.XCP_ERR_MEMORY_OVERFLOW);
case 0x31:
return(EcanXcpResult.XCP_ERR_GENERIC);
case 0x32:
return(EcanXcpResult.XCP_ERR_VERIFY);
case 0x33:
return(EcanXcpResult.XCP_ERR_RESOURCE_TEMPORARY_NOT_ACCESSIBLE);
default:
return(EcanXcpResult.XCP_ERR_INVALID_PARAMETER);
}
#endregion
}
else
{
ctoBuffer = frameInfo.data;// 回传接收到的数据
// Invalid parameter value
return(EcanXcpResult.XCP_ERR_INVALID_PARAMETER);
}
}
else//如果没有数据帧，等待1ms
{
System.Threading.Thread.Sleep(1);
}
}
// 尝试5次，超时
// A timeout was reached by calling a function synchronously
return(EcanXcpResult.XCP_ERR_INTERNAL_TIMEOUT);
#endregion
}