jia_tan_diyic/pqQtlib/serialport/pqrtuhelper.h

#ifndef PQ_RTUHELPER_H
#define PQ_RTUHELPER_H

#include <QByteArray>
#include "QDebug"

/***
 * 通讯处理的公共函数
*/

namespace PQ {

class RTUHelper
{
public:
    RTUHelper();
    virtual ~RTUHelper();

    enum RType
    {
        SubAddress,//从站地址
        GetType, //要数类型
        NumLength, //需要的长度
        ReadData, //需要读取数据
        CRCUL, //CRC 低位
        CRCUH // CRC 高位
    };

    inline void setCheckSubAddress(bool check){
        _checkSubAddress = check;

    }
    inline void addCheckSubAddress(char ch){
        _subAddress.append(ch);
    }

    void readed(const QByteArray & data);
protected:
    virtual void doHandle(const QByteArray & data) = 0;
private:
    QByteArray buffer;
    RType readType;
    int toReadlen;
private:
    bool _checkSubAddress;
    QByteArray _subAddress;
};

}

#endif // RTUHELPER_H