设计的程序在mini2440开发板执行，程序自行终止，这是为什么？

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设计的程序在mini2440开发板执行，程序自行终止，这是为什么？


程序如下：

1. #ifndef MOTOR_H
   
2. #define MOTOR_H
   
3. 
   
4. #include<qobject.h>
   
5. 
   
6. class Motor : public QObject
   
7. {
   
8.      Q_OBJECT
   
9. 
   
10. public:
    
11.    explicit Motor(QObject *parent=0);
    
12. 
    
13. public:
    
14.    int fd;
    
15.    int on[3];
    
16. 
    
17. public:
    
18.    ~Motor();
    
19. 
    
20. public:
    
21.    void motor1_on();
    
22.    void motor2_on();
    
23.    void motor3_on();
    
24.    void motor2_off();
    
25. };
    
26. 
    
27. #endif // MOTOR_H

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1. 
   
2. #include"motor.h"
   
3. 
   
4. #include<sys/types.h>
   
5. #include<sys/stat.h>
   
6. #include<fcntl.h>
   
7. #include<stdio.h>
   
8. #include<sys/ioctl.h>
   
9. #include<stdlib.h>
   
10. #include<unistd.h>
    
11. 
    
12. Motor::Motor(QObject *parent):
    
13.        QObject(parent)
    
14. 
    
15. {
    
16.        on[0]=0;
    
17.        on[1]=0;
    
18.        on[2]=0;
    
19. 
    
20. 
    
21.        fd=open("/dev/motor",0);
    
22. 
    
23.      if(fd<0)
    
24.        {
    
25.            perror("Error:fd<0");
    
26.        }   
    
27. 
    
28. }
    
29. 
    
30. 
    
31. void Motor::motor1_on()
    
32. {
    
33.      on[0]=(~on[0])&1;
    
34.      ioctl(fd,on[0],0);
    
35. }
    
36. 
    
37. void Motor::motor2_on()
    
38. {
    
39.      on[1]=(~on[1])&1;
    
40.      ioctl(fd,on[1],1);
    
41. }
    
42. 
    
43. void Motor::motor3_on()
    
44. {
    
45.      on[2]=(~on[2])&1;
    
46.      ioctl(fd,on[2],2);
    
47. }
    
48. 
    
49. void Motor::motor2_off()
    
50. {
    
51.      on[1]=(on[1])&1;
    
52.      ioctl(fd,on[1],1);
    
53. }
    
54. 
    
55. 
    
56. Motor::~Motor()
    
57. {
    
58. 
    
59. }
    

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1. /****************************************************************************
   
2. ** Form interface generated from reading ui file 'motordialog.ui'
   
3. **
   
4. ** Created by User Interface Compiler
   
5. **
   
6. ** WARNING! All changes made in this file will be lost!
   
7. ****************************************************************************/
   
8. 
   
9. #ifndef MOTORDIALOG_H
   
10. #define MOTORDIALOG_H
    
11. 
    
12. #include <qvariant.h>
    
13. #include <qwidget.h>
    
14. 
    
15. #include "motor.h"
    
16. 
    
17. #include <cstdlib>
    
18. 
    
19. class QVBoxLayout;
    
20. class QHBoxLayout;
    
21. class QGridLayout;
    
22. class QSpacerItem;
    
23. class QPushButton;
    
24. 
    
25. class motordialog : public QWidget
    
26. {
    
27.     Q_OBJECT
    
28. 
    
29. public:
    
30.     motordialog( QWidget* parent = 0, const char* name = 0, WFlags fl = 0 );
    
31.     ~motordialog();
    
32. 
    
33.     QPushButton* pushButton1;
    
34.     QPushButton* pushButton2;
    
35.     QPushButton* pushButton3;
    
36.     Motor* motor_PP;
    
37.     Motor* motor_NP;
    
38.     Motor* motor_SON;
    
39. 
    
40. public slots:
    
41.     virtual void motor_start();
    
42.     virtual void motor_stop();
    
43.     virtual void motor_exit();
    
44.     virtual void motor_delay(int times);
    
45. 
    
46. protected:
    
47. 
    
48. protected slots:
    
49.     virtual void languageChange();
    
50. 
    
51. };
    
52. 
    
53. #endif // MOTORDIALOG_H
    

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1. /****************************************************************************
   
2. ** Form implementation generated from reading ui file 'motordialog.ui'
   
3. **
   
4. ** Created by User Interface Compiler
   
5. **
   
6. ** WARNING! All changes made in this file will be lost!
   
7. ****************************************************************************/
   
8. 
   
9. #include "motordialog.h"
   
10. 
    
11. #include <qvariant.h>
    
12. #include <qpushbutton.h>
    
13. #include <qlayout.h>
    
14. #include <qtooltip.h>
    
15. #include <qwhatsthis.h>
    
16. 
    
17. /*
    
18. *  Constructs a motordialog as a child of 'parent', with the
    
19. *  name 'name' and widget flags set to 'f'.
    
20. */
    
21. motordialog::motordialog( QWidget* parent, const char* name, WFlags fl )
    
22.     : QWidget( parent, name, fl )
    
23. {
    
24.     if ( !name )
    
25.         setName( "motordialog" );
    
26.     setMaximumSize( QSize( 240, 320 ) );
    
27. 
    
28.     pushButton1 = new QPushButton( this, "pushButton1" );
    
29.     pushButton1->setGeometry( QRect( 40, 60, 131, 31 ) );
    
30. 
    
31.     pushButton2 = new QPushButton( this, "pushButton2" );
    
32.     pushButton2->setGeometry( QRect( 40, 150, 131, 31 ) );
    
33. 
    
34.     pushButton3 = new QPushButton( this, "pushButton3" );
    
35.     pushButton3->setGeometry( QRect( 40, 240, 131, 31 ) );
    
36.     languageChange();
    
37.     resize( QSize(240, 320).expandedTo(minimumSizeHint()) );
    
38.     clearWState( WState_Polished );
    
39. 
    
40.     // signals and slots connections
    
41.     connect( pushButton1, SIGNAL( clicked() ), this, SLOT( motor_start() ) );
    
42.     connect( pushButton2, SIGNAL( clicked() ), this, SLOT( motor_stop() ) );
    
43.     connect( pushButton3, SIGNAL( clicked() ), this, SLOT( motor_exit() ) );
    
44. }
    
45. 
    
46. /*
    
47. *  Destroys the object and frees any allocated resources
    
48. */
    
49. motordialog::~motordialog()
    
50. {
    
51.     // no need to delete child widgets, Qt does it all for us
    
52. }
    
53. 
    
54. /*
    
55. *  Sets the strings of the subwidgets using the current
    
56. *  language.
    
57. */
    
58. void motordialog::languageChange()
    
59. {
    
60.     setCaption( tr( "MotorControl" ) );
    
61.     pushButton1->setText( tr( "START" ) );
    
62.     pushButton2->setText( tr( "STOP" ) );
    
63.     pushButton3->setText( tr( "EXIT" ) );
    
64. }
    
65. 
    
66. void motordialog::motor_start()
    
67. {
    
68.     //qWarning( "motordialog::motor_start(): Not implemented yet" );
    
69.     motor_SON->motor1_on();
    
70.    // motor_NP->motor3_on();  
    
71.     int m=10000;
    
72.     while(m)
    
73.        {
    
74.            m--;
    
75.            motor_PP->motor2_on();
    
76.            motor_delay(1000);
    
77.            motor_PP->motor2_off();
    
78.            motor_delay(1000);
    
79.        }   
    
80. }
    
81. 
    
82. void motordialog::motor_stop()
    
83. {
    
84.     //qWarning( "motordialog::motor_stop(): Not implemented yet" );
    
85.      motor_SON->motor1_on();
    
86.      motor_PP->motor2_off();   
    
87. }
    
88. 
    
89. void motordialog::motor_exit()
    
90. {
    
91.     //qWarning( "motordialog::motor_exit(): Not implemented yet" );
    
92.      exit(0);
    
93. }
    
94. 
    
95. 
    
96. void motordialog::motor_delay(int times)
    
97. {
    
98.     int i;
    
99.     int j;
    
100.     for(i=0;i<times;i++)
     
101.         {
     
102.                 for(j=0;j<times;j++)
     
103.                 {
     
104.                 }
     
105.         }
     
106. }
     
107. 
     
108. 
     

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点击START，出现以下错误