‘壹’ 51单片机 c语言写的电子时钟程序 请帮忙指正！
单片机程序是基于硬件基础上开发的，你至少添加注释和硬件环境说明，不然大家都不知道怎么帮你。
你直接给出代码，也不清楚需要指正什么，这里也没有设置时间/闹钟的代码，发文前应该清楚表达要问的内容。
1）假设你的晶振是12MHz，那一个机器周期是1MHz，定时器的最长定时周期是（65535/10^6）你想要1/6秒触发一次中断就必须结合软件计时，为了尽量精确：硬件计时40000次，软件计时25次那么定时器的设这应该是TH1=(65535-40000)%256；TL1=(65535-40000)%256，（注意计数器大部分是加法计数）
2）按键监听没有给出思路，也没有处理按键抖动，我只能分析程序：
有一个外部中断触发时间设置，P34设置小时、P35设置分钟，但是调整时间后没有进行显示，你至少要让数码管显示结果才能知道怎么调整。
‘贰’ 用C语言编一个数字电子时钟的程序
1.这是用windows api写的程序。所以要求是纯c的话就没有办法了
2.其中定时用了两种方法。一种是用取消息。另一种是延时队列。这里只使用了取消息的方法。延时队列由于我机器上是vc6.0，CreateTimerQueue在本人机器上无法使用，需要新的sdk，所以没有加以验证，但取消息的方式是可行的。
3.稍稍验证了下，基本满足要求。
-------------------------------------------
程序如下：
// DigitalClock.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <windows.h>
#include <winbase.h>
typedef struct _st_time{
int hour;
int min;
int sec;
}ST_TIME;
ST_TIME g_Time; // The struct contain the hour,min and sec.
HANDLE g_hStdout; //
WORD g_cxCenter, g_cyCenter; // Center of the screen.
HANDLE g_DoneEvent; // The program could be over.
BOOL g_ThreadTerminated; // The Thread should be terminated.
#define SECOND_CIRCLE 60
#define MINUTE_CIRCLE 60
#define HOUR_CIRCLE 24
void TimeIncreaseSecond(ST_TIME & st)
{
st.sec ++;
if (st.sec >= SECOND_CIRCLE)
{
st.sec -= SECOND_CIRCLE;
st.min++;
if (st.min >= MINUTE_CIRCLE)
{
st.min -= MINUTE_CIRCLE;
st.hour++;
if (st.hour >= HOUR_CIRCLE)
{
st.hour -= HOUR_CIRCLE;
}
}
}
}
void PrintTimeToScreen(HANDLE hStdout, short cxCenter, short cyCenter, ST_TIME st)
{
char buf[64] = {0};
COORD crdPos;
// make it format to output.
sprintf (buf, "%02d:%02d:%02d", st.hour, st.min, st.sec);
crdPos.X = cxCenter - 4;
crdPos.Y = cyCenter;
SetConsoleCursorPosition(hStdout, crdPos);
printf(buf);
}
#ifdef USE_TIMERQUEUE
// if we use the timer queue function.
// Its procre is in this.
void CALLBACK TimerRoutine (LPVOID lpParam, BOOL TimerOrWaitFired)
{
if (lpParam == NULL)
{
printf ("NULL parameters.\n");
}
else
{
ST_TIME *st = (ST_TIME *)lpParam;
TimeIncreaseSecond(st);
PrintTimeToScreen(g_hStdout, g_cxCenter, g_cyCenter, *st);
}
}
#else
DWORD WINAPI TimerThreadProc(LPVOID lpParam)
{
#define ID_TIMER_SECOND 1
MSG msg;
BOOL ret;
ST_TIME *st = (ST_TIME *)lpParam;
SetTimer(NULL, ID_TIMER_SECOND, 1000, NULL);
PeekMessage(&msg, NULL, WM_USER, WM_USER, PM_NOREMOVE);
while (!g_ThreadTerminated && (ret = GetMessage (&msg, NULL, 0, 0)) != 0)
{
if (ret == -1)
{
//process fatal event.
}
else if (msg.message == WM_TIMER)
{
TimeIncreaseSecond(*st);
PrintTimeToScreen(g_hStdout, g_cxCenter, g_cyCenter, *st);
}
else
{
TranslateMessage (&msg);
DispatchMessage (&msg);
}
}
return 1;
}
#endif
// If the ctrl+break combined key pressed. call this function.
// It set the g_DoneEvent. this terminate the program.
BOOL WINAPI CtrlHandler(DWORD fdwCtrlType)
{
switch (fdwCtrlType)
{
case CTRL_BREAK_EVENT:
// Terminate the program.
printf ("Terminate.\n");
SetEvent(g_DoneEvent);
return TRUE;
default:
return FALSE;
}
}
BOOL InitApplication()
{
// Get the stdin and stdout handle.
HANDLE hStdIn;
hStdIn = GetStdHandle(STD_INPUT_HANDLE);
if (hStdIn == INVALID_HANDLE_VALUE)
return FALSE;
g_hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
// Set the mode, make the input echo.
DWORD fOldMode;
GetConsoleMode(hStdIn, &fOldMode);
fOldMode |= ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT;
SetConsoleMode(hStdIn, fOldMode);
// Set the window buffer.
// make a line 40 columns.
CONSOLE_SCREEN_BUFFER_INFO csbiInfo;
GetConsoleScreenBufferInfo(g_hStdout, &csbiInfo);
csbiInfo.srWindow.Right = 40;
// get the center point.
g_cxCenter = csbiInfo.srWindow.Right / 2;
g_cyCenter = csbiInfo.srWindow.Bottom / 2;
// Set the window.
SetConsoleWindowInfo(g_hStdout, TRUE, &csbiInfo.srWindow);
return TRUE;
}
BOOL (HANDLE hStdout, WORD cxCenter, WORD cyCenter, ST_TIME & time)
{
#define GAPS_LEFT_COLON (-2)
#define GAPS_RIGHT_COLON (1)
#define GAPS_LEFT_UNDERLINE_START (-4)
#define GAPS_MIDDLE_UNDERLINE_START (-1)
#define GAPS_RIGHT_UNDERLINE_START (2)
// __:__:__
// So the left ":" center -2
// so the right ":" center + 1
// so the left "_" center - 4;
// so the lfet "_" center - 1;
// so the right "_" center + 2;
COORD crdPos;
crdPos.X = cxCenter + GAPS_LEFT_COLON;
crdPos.Y = cyCenter;
SetConsoleCursorPosition(hStdout, crdPos);
printf (":");
crdPos.X = cxCenter + GAPS_RIGHT_COLON;
SetConsoleCursorPosition(hStdout, crdPos);
printf (":");
crdPos.X = cxCenter + GAPS_LEFT_UNDERLINE_START;
SetConsoleCursorPosition(hStdout, crdPos);
scanf ("%d", &time.hour);
crdPos.X = cxCenter + GAPS_MIDDLE_UNDERLINE_START;
SetConsoleCursorPosition(hStdout, crdPos);
scanf ("%d", &time.min);
crdPos.X = cxCenter + GAPS_RIGHT_UNDERLINE_START;
SetConsoleCursorPosition(hStdout, crdPos);
scanf ("%d", &time.sec);
if (time.hour < 0 || time.hour > HOUR_CIRCLE ||
time.min < 0 || time.min > MINUTE_CIRCLE ||
time.sec < 0 || time.sec > SECOND_CIRCLE)
return FALSE;
return TRUE;
}
int main(int argc, char* argv[])
{
InitApplication();
(g_hStdout, g_cxCenter, g_cyCenter, g_Time);
// create a event to tell the program to terminate.
g_DoneEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
#ifdef USE_TIMERQUEUE
HANDLE hTimerQueue, hTimer;
hTimerQueue = CreateTimerQueue();
if (!CreateTimerQueueTimer(&hTimer,
hTimerQueue, TimerRoutine, &g_Time, 1000, 0, 0))
{
printf("CreateTimerQueueTimer failed (%d)\\n", GetLastError());
return 3;
}
#else
// create the thread.
HANDLE hThreadTimer;
DWORD dwThreadId;
g_ThreadTerminated = FALSE;
hThreadTimer = CreateThread(NULL, 0,
TimerThreadProc, &g_Time, 0, &dwThreadId);
if (hThreadTimer == NULL)
{
}
#endif
SetConsoleCtrlHandler(CtrlHandler, TRUE);
if (WaitForSingleObject(g_DoneEvent, INFINITE) != WAIT_OBJECT_0)
printf("WaitForSingleObject failed (%d)\\n", GetLastError());
#ifdef USE_TIMERQUEUE
if (!DeleteTimerQueue(hTimerQueue))
printf("DeleteTimerQueue failed(%d) \\n", GetLastError());
#else
g_ThreadTerminated = TRUE;
if (WaitForSingleObject(hThreadTimer, INFINITE) != WAIT_OBJECT_0)
printf("WaitForSingleObject failed (%d)\\n", GetLastError());
#endif
return 0;
}
--------------------------------------------
下面是纯c的。
有几个问题：
1.textmode函数在turboc中没有办法使用，不知道是什么问题，而borland c就可以。
2.无论怎么设置，自己的ctrlbreak函数在上述两个环境中都不能被调用，非常遗憾。所以不能够优雅的退出。只能按两次ctrlbreak。
下面是程序。
------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
#include <dos.h>
#define ABORT 0
int jump_out_loop = -1;
int jump_out(void)
{
jump_out_loop = 1;
printf("Abort ..\n");
return ABORT;
}
int main(void)
{
struct text_info ti;
int center_x, center_y;
int hour, min, sec;
char str_out[64] = {0};
clrscr();
/*textmode(BW40);*/
/*textmode在turbo c下设置会出问题*/
gettextinfo(&ti);
center_x = ti.winright / 2;
center_y = ti.winbottom / 2;
gotoxy(center_x - 4, center_y);
cprintf(" : : ");
gotoxy(center_x - 4, center_y);
cscanf("%d", &hour);
gotoxy(center_x - 1, center_y);
cscanf("%d", &min);
gotoxy(center_x + 2, center_y);
cscanf("%d", &sec);
/* check input valid or not */
{}
setcbrk(1);
ctrlbrk(jump_out);
/*jump_out没有起到作用,实在不好意思.*/
/*
if (getcbrk())
printf("crtl break is on\n");
else
printf("is off\n");
*/
while (1)
{
delay(1000);
sec++;
if (sec >= 60)
{
sec -= 60;
min++;
if (min >= 60)
{
min -= 60;
hour++;
if (hour >= 24)
{
hour -= 24;
}
}
}
sprintf(str_out, "%02d:%02d:%02d", hour, min, sec);
gotoxy(center_x - 4, center_y);
cprintf(str_out);
}
/* getch();*/
return 0;
}
‘叁’ C语言编图形时钟
给你2个选吧，都是原创：
第1个：
#include<graphics.h>
#include<math.h>
#include<dos.h>
#define pi 3.1415926
#define X(a,b,c) x=a*cos(b*c*pi/180-pi/2)+300;
#define Y(a,b,c) y=a*sin(b*c*pi/180-pi/2)+240;
#define d(a,b,c) X(a,b,c);Y(a,b,c);line(300,240,x,y)
void init()
{int i,l,x1,x2,y1,y2;
setbkcolor(1);
circle(300,240,200);
circle(300,240,205);
circle(300,240,5);
for(i=0;i<60;i++)
{if(i%5==0) l=15;
else l=5;
x1=200*cos(i*6*pi/180)+300;
y1=200*sin(i*6*pi/180)+240;
x2=(200-l)*cos(i*6*pi/180)+300;
y2=(200-l)*sin(i*6*pi/180)+240;
line(x1,y1,x2,y2);
}
}
main()
{
int x,y;
int gd=VGA,gm=2;
unsigned char h,m,s;
struct time t[1];
initgraph(&gd,&gm,"d:\\tc");
init();
setwritemode(1);
gettime(t);
h=t[0].ti_hour;
m=t[0].ti_min;
s=t[0].ti_sec;
setcolor(7);
d(150,h,30);
setcolor(14);
d(170,m,6);
setcolor(4);
d(190,s,6);
while(!kbhit())
{while(t[0].ti_sec==s)
gettime(t);
sound(400);
delay(70);
sound(200);
delay(30);
nosound();
setcolor(4);
d(190,s,6);
s=t[0].ti_sec;
d(190,s,6);
if (t[0].ti_min!=m)
{
setcolor(14);
d(170,m,6);
m=t[0].ti_min;
d(170,m,6);
}
if (t[0].ti_hour!=h)
{ setcolor(7);
d(150,h,30);
h=t[0].ti_hour;
d(150,h,30);
sound(1000);
delay(240);
nosound();
delay(140);
sound(2000);
delay(240);
nosound();
}
}
getch();
closegraph();
}
第2个：
#include<graphics.h>
#include<math.h>
#include<dos.h>
#define PI 3.1415926
#define x0 320 /*定义钟表中心坐标*/
#define y0 240
void DrawClock(int x,int y,int color) /*画表盘*/
{ int r=150; /*表盘的半径*/
float th;
setcolor(color);
circle(x,y,r);
circle(x,y,2);
}
void DrawHand(int x,int y,float th,int l,int color)
{
int x1,y1;
x1=x+l*sin(th);
y1=y-l*cos(th);
setcolor(color);
line(x,y,x1,y1);
}
void main()
{int gdriver=DETECT,gmode;
struct time curtime;
float th_hour,th_min,th_sec;
initgraph(&gdriver,&gmode,"");
setbkcolor(0);
while(! kbhit())
{
DrawClock(x0,y0,14);
gettime(&curtime); /*得到当前系统时间*/
gotoxy(35,20); /*定位输出位置*/
if((float)curtime.ti_hour<=12) /*午前的处理*/
{printf("AM ");
if((float)curtime.ti_hour<10) printf("0"); /*十点之前在小时数前加零*/
printf("%.0f:",(float)curtime.ti_hour);
}
else /*午后的处理*/
{printf("PM ");
if((float)curtime.ti_hour-12<10) printf("0");
printf("%.0f:",(float)curtime.ti_hour-12);
}
if((float)curtime.ti_min<10) printf("0");
printf("%.0f:",(float)curtime.ti_min);
if((float)curtime.ti_sec<10) printf("0");
printf("%.0f",(float)curtime.ti_sec);
/*以下三行计算表针转动角度，以竖直向上为起点，顺时针为正*/
th_sec=(float)curtime.ti_sec*0.1047197551; /*2π/60=0.1047197551*/
th_min=(float)curtime.ti_min*0.1047197551+th_sec/60.0;
th_hour=(float)curtime.ti_hour*0.523598775+th_min/12.0; /* 2π/12=0.5235987755 */
DrawHand(x0,y0,th_hour,70,2); /*画时针*/
DrawHand(x0,y0,th_min,110,3); /*分针*/
DrawHand(x0,y0,th_sec,140,12); /*秒针*/
sleep(1); /*延时一秒后刷新*/
cleardevice();
}
closegraph();
}
‘肆’ 单片机C语言编程简易数字电子时钟
#include <AT89X52.h>
unsigned char X=10,sec,flag;
unsigned char key[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};// 数码管显示数字表
unsigned char key2[]={0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10};
unsigned char key1[]={0,0,0,0};//key1[0]=9 key1[1]=1 key1[2]=2 key1[3]=3
void delay02s(void);
void dislplay(void);
void dislplay1(void);
void tim1(void);
void main()
{
tim1();
while(1)
{
if(flag==0) dislplay();
else dislplay1();
}
}
void time1(void) interrupt 3
{
TR1=0;
X=X-1;
if(X==0)
{
flag=flag+1;
if(flag==2)
{
flag=0;
sec=sec+1;
if(sec==60)
{
sec=0;
key1[3]=key1[3]+1;
if(key1[3]==10)；
{
key1[3]=0;
key1[2]=key1[2]+1;
if(key1[2]==6)
{
key1[2]=0;
key1[1]=key1[1]+1;
if(key[0]!=2)
{
if(key1[1]==10)
{
key1[1]=0;
key1[0]=key1[0]+1;
}
}
if(key[0]==2)
{
if(key[1]==4)
{
key1[1]=0;
key1[0]=0;
}
}
}
}
}
}
X=10;
}
TL1=0xb0;
TH1=0x3c;
TF1=0;
TR1=1;
}
void tim1(void)
{
TMOD =0X10;
TL1=0xb0;
TH1=0x3c;
EA=1;
ET1=1;
TR1=1;
}
void dislplay(void)
{
P2=0xfe;
P0=key[key1[0]];
delay02s();
P2=0xfd;
P0=key[key1[1]];
delay02s();
P2=0xfb;
P0=key[key1[2]];
delay02s();
P2=0xf7;
P0=key[key1[3]];
delay02s();
}
void dislplay1(void)
{
P2=0xfe;
P0=key[key1[0]];
delay02s();
P2=0xfd;
P0=key2[key1[1]];
delay02s();
P2=0xfb;
P0=key[key1[2]];
delay02s();
P2=0xf7;
P0=key[key1[3]];
delay02s();
}
void delay02s(void)
{
unsigned char i,j,k;
for(i=2;i>0;i--)
{
for(j=15;j>0;j--) //198
{
for(k=25;k>0;k--)//248
{
;
}
}
}
}
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‘伍’ c语言电子毫秒表计时程序
使用time()函数。它在头文件time.h中
具体使用方法如下：
time_t
a,b;//time_t是表示时间的结构体，你可以在time.h中找到它的原型。
a=time(null);//表示获取当前的机器时间。
代码段
b=time(null);//表示获取当前的机器时间。
a是代码段执行前的时间，b是代码段执行后的时间(单位是秒），那么b-a当然是代码段的执行时间了。输出时，以长整型输出时间。
希望这个解答可以帮到你。
‘陆’ 谁能帮我用c语言编写桌面钟表啊！
#include<math.h>
#include<dos.h>
#include<graphics.h>
#define
CENTERX
320
/*表盘中心位置*/
#define
CENTERY
175
#define
CLICK
100
/*喀嗒声频率*/
#define
CLICKDELAY
30
/*喀嗒声延时*/
#define
HEBEEP
10000
/*高声频率*/
#define
LOWBEEP
500
/*低声频率*/
#define
BEEPDELAY
200
/*报时声延时*/
/*表盘刻度形状*/
int
Mrk_1[8]={-5,-160,5,-160,5,-130,-5,-130,
};
int
Mrk_2[8]={-5,-160,5,-160,2,-130,-2-130,
};
/*时针形状*/
int
HourHand[8]={-3,-100,3,-120,4,
10,-4,10};
/*分针形状*/
int
MiHand[8]={-3,-120,3,-120,4,
10,-4,10};
/*秒针形状*/
int
SecHand[8]={-2,-150,2,-150,3,
10,-3,10};
/*发出喀嗒声*/
void
Click()
{
sound(CLICK);
delay(CLICKDELAY);
nosound();
}
/*高声报时*/
void
HighBeep()
{
sound(HEBEEP);
delay(BEEPDELAY);
nosound;
}
/*低声报时*/
void
LowBeep()
{
sound(LOWBEEP);
}
/*按任意角度画多边形*/
void
DrawPoly(int
*data,int
angle,int
color)
{
int
usedata[8];
float
sinang,cosang;
int
i;
sinang=sin((float)angle/180*3.14);
cosang=cos((float)angle/180*3.14);
for(i=0;i<8;i+=2)
{
usedata[i]
=CENTERX+
cosang*data[i]-sinang*data[i+1]+.5;
usedata[i+1]=CENTERY+sinang*data[i]+cosang*data[i+1]+.5;
}
setfillstyle(SOLID_FILL,color);
fillpoly(4,usedata);
}
/*画表盘*/
void
DrawClock(struct
time
*cutime)
{
int
ang;
float
hourrate,minrate,secrate;
setbkcolor(BLUE);
cleardevice();
setcolor(WHITE);
/*
画刻度*/
for(ang=0;ang<360;ang+=90)
{
DrawPoly(Mrk_1,ang,WHITE);
DrawPoly(Mrk_2,ang+30,WHITE);
DrawPoly(Mrk_2,ang+60,WHITE);
}
secrate=(float)cutime->ti_sec/60;
minrate=((float)cutime->ti_min+secrate)/60;
hourrate=(((float)cutime->ti_hour/12)+minrate)/12;
ang=hourrate*360;
DrawPoly(HourHand,ang,YELLOW);/*画时针*/
ang=minrate*360;
DrawPoly(MiHand,ang,
GREEN);/*画分针*/
ang=secrate*360;
DrawPoly(SecHand,ang,
RED);/*画秒针*/
}
main()
{
int
gdriver=EGA,
gmode=EGAHI;
int
curpage;
struct
time
curtime
,newtime
;
initgraph(&gdriver,&gmode,"c:\\tc");
setbkcolor(BLUE);
cleardevice();
gettime(&curtime);
curpage=0;
DrawClock(&curtime);
while(1)
{
if(kbhit())
break;
/*按任意键退出*/
gettime(&newtime);
/*检测系统时间*/
if(newtime.ti_sec!=curtime.ti_sec)/*每1秒更新一次时间*/
{
if(curpage==0)
curpage=1;
else
curpage=0;
curtime=newtime;
/*设置绘图页*/
setactivepage(curpage);
/*在图页上画表盘*/
DrawClock(&curtime);
/*设置绘图页为当前可见页*/
setvisualpage(curpage);
/*0分0秒高声报时*/
if(newtime.ti_min==0&&newtime.ti_sec==0)
HighBeep();
/*
59分55至秒时低声报时*/
else
if(newtime.ti_min==59&&
newtime.ti_sec<=59)
LowBeep();/*其他时间只发出喀嗒声*/
else
Click();
}
}
closegraph();
}