QT软件开发-多窗口—定时器与直流电机控制

源码下载地址：http://download.csdn.net/detail/sailor_luo/9866168

定时器：

多窗口—定时器与直流电机控制

#include "dialog1.h"

#include "ui_dialog1.h"

#include <QTimer>

#include <QtCore>

#include<dialog1.h>

Dialog1::Dialog1(QWidget *parent) :

    QDialog(parent),

    ui(new Ui::Dialog1)

{

    ui->setupUi(this);

    QTimer *timer =new QTimer(this);

    connect(timer,SIGNAL(timeout()),this,SLOT(timerupdate()));

    timer->start(1000);

}

Dialog1::~Dialog1()

{

    delete ui;

}

void Dialog1::timerupdate()

{

    QDateTime time=QDateTime::currentDateTime();

    QString str =time.toString("yyyy-MM-dd hh:mm:ss dddd");

    ui->label->setText(str);

}

驱动电机;

#include "dialog2.h"

#include "ui_dialog2.h"

#include <stdio.h>

#include <fcntl.h>

#include <string.h>

#include <sys/ioctl.h>

#include <stdio.h>

#include <unistd.h>

#include <sys/types.h>

#include <sys/ipc.h>

#include <sys/ioctl.h>

#include <pthread.h>

#include <fcntl.h>

#include <fcntl.h>

#include <string.h>

#include <sys/ioctl.h>

#include <QtGui/QApplication>

#define DCM_IOCTRL_SETPWM             (0x10)

#define DCM_TCNTB0                (16384)

int flag=1;

static int dcm_fd = -1;

char *DCM_DEV="/dev/s3c2440-dc-motor0";

Dialog2::Dialog2(QWidget *parent) :

    QDialog(parent),

    ui(new Ui::Dialog2)

{

    ui->setupUi(this);

}

Dialog2::~Dialog2()

{

    delete ui;

}

void Delay(int t)

{

        int i;

        for(;t>0;t--)

                for(i=0;i<400;i++);

}

void Dialog2::on_pushButton_clicked()

{

        int setpwm = 512;

        int factor = DCM_TCNTB0/1024;

        if((dcm_fd=::open(DCM_DEV, O_WRONLY))<0){

                printf("Error opening %s device\n", DCM_DEV);

        }

      

        if(flag==0)

         {

              ::ioctl(dcm_fd, DCM_IOCTRL_SETPWM, (1000 * factor));

               ui->pushButton->setText("close");

          }

          else if(flag==1)

           {

            ::close(dcm_fd);

             ui->pushButton->setText("open");

           }

         printf("setpwm = %d \n", setpwm);

}