private FXReadCommentResult ReadCommentInside()
{
FXReadCommentResult result = new FXReadCommentResult();
try
{
FXRegionInfoResult regionInfo = ReadParamRegionInside();
FXRegionInfo infoAddr = regionInfo.Items[(int)FXParamType.CommentRegisterFrom];
FXRegionInfo infoLen = regionInfo.Items[(int)FXParamType.CommentRegisterBlockLen];
int commentAddr = Convert.ToInt32(infoAddr.ValueStr, 16) + 0x8000; //获得注释起始地址
int commentLen = Convert.ToInt32(infoLen.ValueStr, 16) * 1000; //一块是1000字节
if (!this.mSerialPort.IsOpen)
this.mSerialPort.Open();
int commentOffset = 0;
List<byte[]> cmdList;
List<byte[]> readResultList;
while (true)
{
cmdList = this.CreateRegionCMDList(FXSeriesCmd.ReadProgram, commentAddr + commentOffset, COMMENTREADLEN, null); //每次读取20长度，直到读到第一个就是00结束
readResultList = this.mSerialPort.Read(cmdList);
string aaa = BitConverter.ToString(readResultList[0]);
if (readResultList[0][0] == (byte)FXSeriesControl.NAK) //如果设备返回NAK，那直接返回
{
result.Msg = "device return NAK";
break;
}
string str = Utils.BytesToStrInRightOrder(false, readResultList[0]);
if (str.StartsWith("00")) //如果读到的字符串以00开头，说明没有注释了，可以直接返回
break;
FXCommentInfo comment = new FXCommentInfo(); //添加这个注释
comment.SetComment(str);
result.Comments.Add(comment);
commentOffset += COMMENTREADLEN;
if (commentOffset + COMMENTREADLEN > commentLen) //如果已经超过注释区大小了，那么可以直接返回
break;
}
this.mSerialPort.Close();
}
catch (System.Exception ex)
{
result.Msg = ex.Message;
}
return result;
}