本帖被 xchinux 執行加亮操作(2008-04-22)
[serial.cpp]
int main(int argc, char *argv)
[mainwindow.h]
#ifndef main_window_h
#define main_window_h
#include
class qlabel;
class qpushbutton;
class qlineedit;
class qpixmap;
class serialthread;
class mainwindow:public qmainwindow ;
void setcounter(int no);
void setmsgtext(char* txt);
public slots:
void serialoperate();
void loadjpegfile();
protected:
void paintevent( qpaintevent * );
private:
qlineedit *msg;
qpushbutton *btn;
qpushbutton *btn2loadimg;
qpixmap *pix;
qlabel *lab;
serialthread *a;
int counter; };
#endif
[mainwindow.cpp]
#include "serialthread.h"
void mainwindow::paintevent( qpaintevent * )
void mainwindow::loadjpegfile()
setmsgtext("load success!");
update(); }
void mainwindow::setcounter(int no)
void mainwindow::serialoperate()
mainwindow::mainwindow(qwidget * parent , const char * name)
:qmainwindow(parent, name) ;
void mainwindow::setmsgtext(char* txt);/
[my_define.h]
#define baudrate b115200
#define block_size 200
#define device "/dev/ttys0"
#define wait_time 5
#define change_line 0x0a
#define ack_num 3
#ifndef true
#define true 1
#endif
#ifndef false
#define false -1
#endif
[serialthread.h]
#ifndef serial_thread_h
#define serial_thread_h
#include
class mainwindow;
class serialthread: public qthread ;
#endif
[serialthread.cpp]
#include
#include
#include
#include
#include
#include "my_define.h"
#include "serialthread.h"
#include "mainwindow.h"
int set_nc_mode(int fd)
/* get current port settings */
bzero(&options, sizeof(options));
options.c_cflag |= baudrate | cs8 | clocal | cread;
options.c_cflag &= ~crtscts;
options.c_iflag = ignpar;
options.c_oflag &=~opost;
// options.c_lflag = 0;
options.c_cc[vtime] = wait_time;
options.c_cc[vmin] = block_size; /* blocking read until 5 chars received */
tcflush(fd, tciflush);
tcsetattr(fd,tcsanow,&options);
return(true); }
int set_c_mode(int fd)
bzero(&options, sizeof(options));
tcflush(fd, tcioflush);
cfsetispeed(&options, baudrate);
cfsetospeed(&options, baudrate);
options.c_cflag |=(clocal|cread);
options.c_cflag &= ~crtscts;
options.c_cflag &= ~csize;
options.c_cflag |= cs8;
options.c_cflag &= ~parenb; /* clear parity enable,clear control mode flag */
options.c_iflag &= ~inpck; /* disable parity checking ,*/
options.c_cflag &= ~cstopb;
options.c_iflag |= ignbrk;
options.c_lflag |= icanon;
options.c_lflag &= ~(echo | echoe | isig);
options.c_oflag &= ~(opost);
tcflush(fd, tcioflush);
if (tcsetattr(fd,tcsanow,&options) != 0)
return(true); }
void send_ack(int fd) ;
write(fd,buf,sizeof(buf)); }
void resend(int fd) ;
write(fd,buf,sizeof(buf)); }
void delay(int i)
serialthread::serialthread(mainwindow *parent)
void serialthread::run()
tcgetattr(fd,&oldtio);
set_nc_mode(fd);
printf("changed to nc mode/n");
/* res=read(fd,( char *)file_name,32);
parent->setcounter(res);
parent->setmsgtext("res is ::::::");
*/ /*
if(res>0)
else
printf("the received file name is error./n");
fp=fopen(file_name,"wb");
if(fp==null)
else
//set_nc_mode(fd);
//printf("changed to nc mode/n");
res=read(fd,buf,4);
printf("res=%d/n",res);
printf("received the block num /n");
for(i=0,block_num=0;i<4;i++)
printf("the number of blocks is %d/n",block_num);
send_ack(fd);
res=read(fd,buf,3);
printf("res=%d/n",res);
printf("received the last block size /n");
for(i=0,last_block=0;i<3;i++)
printf("the last block size is %d/n",last_block);
send_ack(fd);
printf("starting receive blocks/n");
for(i=0;i0)
else
fwrite(buf,1,last_block,fp); }
send_ack(fd);
printf("the file transports end/n");
fclose(fp);
printf("close the file/n");
tcsetattr(fd,tcsanow,&oldtio);
close(fd);
printf("close the serial port/n");
*/ }
qt串列埠程式設計
開啟串列埠後要重新設定一遍波特率，資料位，校驗位等，否則這些都是預設的。連線串列埠 void mainwindow on opencomn clicked ui opencomn settext 開啟串列埠 return qstring comnarg ui comnarg currenttext ...
QT串列埠程式設計
最近開發乙個專案，需要串列埠程式設計，是在qt windows 環境下進行開發。在qt5.0的版本之前都沒有支援串列埠，需要使用第三方類庫qserialport，網上的qt串列埠程式設計的例項也是基於此編寫的。最近安裝5.2 和5.4的版本，在瀏覽其幫助文件的時候，發現qt已經整合了串列埠的類庫，果...
自學Qt之路 串列埠程式設計（使用自帶Qt庫）
之前學習嵌入式驅動，做乙個紅外攝像頭的專案，在作業系統之上直接操作 lcd顯示屏，顯示影象。後來聽說 qt能夠跨平台，跨 window android linux 三個平台，而且做專案必須有個圖形介面，看起來高大上。之後根據這個專案需要，自學 qt5.6 寫個部落格記錄一下自己學習過程。之前看過 q...