資源簡(jiǎn)介
實(shí)現(xiàn)DS18B20的測(cè)溫實(shí)現(xiàn),基于linux內(nèi)核版本的,有QT界面,代碼簡(jiǎn)潔已讀,魯棒性還行。PS:該程序?yàn)閼?yīng)用程序,非驅(qū)動(dòng)程序!

代碼片段和文件信息
#include?“l(fā)cd.h“
#include?
#include?
#include?
#include?
#include?
#include?
#include
#include
#include
MyMainWindow::MyMainWindow()
{
????????????????setGeometry(00320240);
label1?=?new?QLabel(this);
label1?->?setGeometry(101030050);
label1?->?setText(“DS18B20?TEST“);
label1?->?setFont(QFont(“times“18QFont::Bold));
label1?->?setAlignment(Qt::AlignCenter);
label2?=?new?QLabel(this);
label2?->?setText(“Temperature?is“);
label2?->?setFixedSize(16080);
label2?->?setFont(QFont(“Courier“10QFont::Light));
label2?->?setAlignment(Qt::AlignCenter|Qt::AlignLeft);
label3?=?new?QLabel(this);
label3?->?setText(“‘C“);
label3?->?setFont(QFont(“Courier“10QFont::Light));
label3?->?setAlignment(Qt::AlignCenter|Qt::AlignRight);
start?=?new?QPushButton(“start“this);
start?->?setMinimumSize(5040);
start?->?setFont(QFont(“times“15QFont::Bold));
stop?=?new?QPushButton(“stop“this);
stop?->?setMinimumSize(5040);
stop?->?setFont(QFont(“times“15QFont::Bold));
????????????????lcdnum?=?new?QLCDNumber(this);
lcdnum?->?setFixedSize(10080);//固定大小
lcdnum?->?setSmallDecimalPoint(true);//顯示一位小數(shù)
lcdnum?->?setNumDigits(4);
lcdnum?->?setSegmentstyle(QLCDNumber::Filled);
QPalette?lcdp?=?lcdnum?->?palette();
lcdp.setColor(QPalette::NormalQPalette::WindowTextQt::black);//前景色為黑色
lcdnum?->?setPalette(lcdp);
QVBoxLayout?*vbox?=?new?QVBoxLayout(this);
QHBoxLayout?*hbox1?=?new?QHBoxLayout();
QHBoxLayout?*hbox2?=?new?QHBoxLayout();
QHBoxLayout?*hbox3?=?new?QHBoxLayout();
vbox?->?addLayout(hbox1);
vbox?->?addLayout(hbox2);
vbox?->?addLayout(hbox3);
hbox1?->?addWidget(label1);
hbox2?->?addWidget(label2);
hbox2?->?addWidget(lcdnum);
hbox2?->?addWidget(label3);
hbox3?->?addWidget(start);
hbox3?->?addWidget(stop);
timer?=?new?QTimer(this);
connect(startSIGNAL(clicked())thisSLOT(start_time()));
connect(timerSIGNAL(timeout())thisSLOT(get_tmp()));
connect(stopSIGNAL(clicked())thisSLOT(stop_tmp()));
}
void?MyMainWindow::start_time()
{
timer?->?start(1000);
}
void?MyMainWindow::get_tmp()
{
stop?->?setEnabled(true);
start?->?setEnabled(false);
fd?=?open(“/dev/TX2440-ds18b20“?0);
if?(fd?0)
{
perror(“open?device?ds18b20“);
exit(1);
}
ret?=?read(fd&data4);
if(ret<0)
printf(“read?ds18b20?error\n“);
printf(“read?ds18b20\n“);
temp?=?data?*?0.0625;
temp1=?(int)(temp?*?10?+?0.5);
z_s?=?temp1/10;
x_s?=?(float)(temp1%10);
wen_du?=?z_s?+?x_s/10;
printf(“Temperature?is??[%d.%d?‘C]\n“?temp1/10?temp1%10);
lcdnum?->?display(wen_du);
::close(fd);
}
void?MyMainWindow::stop_tmp()
{
stop?->?setEnabled(false);
start?-
?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件??????35632??2010-05-06?15:37??ds18b20_time\ds18b20_time
?????文件????????313??2010-05-06?15:37??ds18b20_time\ds18b20_time.pro
?????文件???????3211??2010-05-06?15:36??ds18b20_time\lcd.cpp
?????文件????????683??2010-05-06?14:33??ds18b20_time\lcd.h
?????文件??????13948??2010-05-06?15:37??ds18b20_time\lcd.o
?????文件???????9319??2010-05-06?15:37??ds18b20_time\Makefile
?????文件???????2227??2010-05-06?14:47??ds18b20_time\moc_lcd.cpp
?????文件???????7536??2010-05-06?14:47??ds18b20_time\moc_lcd.o
?????文件??????21314??2011-10-27?13:39??ds18b20_time\ds18b20_time.pro.user
?????目錄??????????0??2010-05-06?15:41??ds18b20_time
-----------?---------??----------?-----??----
????????????????94183????????????????????10
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