用于mini2440与周立功非接触式ic卡模块的通信

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1、一个在linux下的串口程序例子    用于mini2440与周立功非接触式ic卡模块的通信头文件#include#include#include#include#include#include#include#include#include#include#includeclassCardreader:publicQThread{    Q_OBJECTpublic:  

2、  Cardreader();    intfd_port;    intopen_port(intcomport);    intset_opt(intfd,intnSpeed,intnBits,charnEvent,intnStop);    intinitcardreader(intfd_port);    unsignedintcheckcard(intfd_port);    unsignedintreadcardid(intfd_port);    intbeep(intfd_port);    voidautorun(void);    voidsendmessage(intda

3、ta);signals:    voidmessage(QString);protected:private:};cpp文件#include"cardreader.h"Cardreader::Cardreader(){}intCardreader::open_port(intcomport){        /*打开端口成功返回文件描述符失败返回0*/        /*openCOMPort*/        /*comport=1openCOM1comport=2openCOM2comport=3openCOM3*/        //char*dev[]={"/dev/ttySAC0",

4、"/dev/ttySAC1","/dev/ttySAC2"};        long  vdisable;        intfd;        if(comport==1)        {    fd=open("/dev/ttySAC0",O_RDWR

5、O_NOCTTY

6、O_NDELAY);                if(0==fd)                {                    emitmessage("Openporterror1");                        return(0);              }       

7、 }        elseif(comport==2)        {    fd=open("/dev/ttySAC1",O_RDWR

8、O_NOCTTY

9、O_NDELAY);                if(0==fd)            {                    emitmessage("Openporterror1");                        return(0);                    }        }        elseif(comport==3)        {                fd=open

10、("/dev/ttySAC2",O_RDWR

11、O_NOCTTY

12、O_NDELAY);                if(0==fd)                {                    emitmessage("Openporterror1");                        return(0);                    }        }        if(fcntl(fd,F_SETFL,0)<0)        {            emitmessage("Openporterror2");                re

13、turn(0);            }        if(isatty(STDIN_FILENO)==0)        {            emitmessage("Openporterror3");          //return(0);        }        returnfd;}intCardreader::set_opt(intfd,intnSpeed,intnB