标题:
1602液晶显示记一日的计时 单片机源程序
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作者:
c2921707677
时间:
2017-6-18 12:29
标题:
1602液晶显示记一日的计时 单片机源程序
1602液晶显示记一日的计时
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单片机源程序如下:
#include <REGX52.H>
#include <INTRINS.H>
void delayms(unsigned char xms)
{
unsigned char i,j;
for(i=xms;i>0;i--)
for(j=110;j>0;j--);
}
void showTime();
void timer0(void );
unsigned char COUNT = 0;
unsigned char h1 = 2;
unsigned char h2 = 3;
unsigned char m1 = 5;
unsigned char m2 = 9;
unsigned char s1 = 5;
unsigned char s2 = 0;
unsigned char code table[]={
"0123456789"};
#include <1602.H>
#include <1302.H>
void main()
{
Lcd_Int();
TMOD = 0x01;
TL0 = (65536 - 50000)%256;
TH0 = (65536 - 50000)/256;
IE = 0x00;
TR0 = 1;
COUNT = 0x14;
while(1)
{
if (TF0) {
timer0();
TF0 = 0;
}
}
}
void jishi() {
writelcd(7,2,table[h1]);
writelcd(8,2,table[h2]);
writelcd(10,2,table[m1]);
writelcd(11,2,table[m2]);
writelcd(13,2,table[s1]);
writelcd(14,2,table[s2]);
writelcd(9,2,' ');writelcd(12,2,' ');
writelcd(9,2,':');writelcd(12,2,':');
}
void timer0(void ) {
TL0 = (65536 - 50000)%256;
TH0 = (65536 - 50000)/256;
switch(COUNT) {
case 0:{
//showTime();
s2 ++;
//秒
if (s2 > 9) {
s2=0;
s1++;
}
if (s1 > 5) {
s1 = 0;
m2++;
}
//分
if (m2 > 9) {
m2=0;
m1++;
}
if (m1 > 5) {
m1 = 0;
h2++;
}
//时
if (h2 > 9)
h1++;
if ( h2 >3 && h1 == 2 ) {
h2=0;
h1=0;
}
if (h1 > 2) {
h1 = 0;
}
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