/// <summary>
/// Encode DM1 fault code object
/// </summary>
/// <param name="DM1FaultCode"></param>
/// <returns></returns>
public static ulong EncodeDM1(DM1Value DM1FaultCode)
{
uint b5 = DM1FaultCode.SPN >> 16;
b5 = (b5 << 5) | DM1FaultCode.FMI;
return((DM1FaultCode.SPN & 0xffff) | (b5 << 16));
}
public object DecodeCANMessage(ulong signalValue)
{
switch (sType)
{
//连续值解析
case SignalType.Continuous:
double value = signalValue;
value *= cRatio;
value += cOffset;
return(value);
//离散值解析
case SignalType.Discrete:
return(DiscreteDecodeTable.ContainsKey(signalValue) ? DiscreteDecodeTable[signalValue] : string.Format("Undef:{0}", signalValue));
//开关量解析
case SignalType.Switch:
return(SwitchMap[signalValue]);
//DM1故障码
case SignalType.DM1FaultCode:
DM1Value dm1Obj = new DM1Value()
{
FMI = (uint)(signalValue >> 16 & 0x1F),
SPN = (uint)(signalValue >> 21 & 7 << 16 | (signalValue & 0xFFFF))
};
return(dm1Obj);
case SignalType.UserDefined:
//用匿名函数的形式描述解析器（少用）
//JS: function(var_ulong_value){...}
return(JavaScriptEngine.runCmd(string.Format("{0}({1})", UDFName, signalValue)));
default:
throw new Exception("Undefined signal type, please check your code:" + sType.ToString());
}
}