1、 可调节型多功能流水灯设计
2、 可调节型多功能流水灯设计--程序编写
3、 可调节型多功能流水灯设计--仿真
4、可调节型多功能流水灯--程序如下：
#include <at89X52.h>
#define uchar unsigned char
#define uint unsigned int
#define LED P2 //8个LED接口
#define KEY P1 //按键接口
sbit INDICATOR = P3^3; //指示灯接口
uchar code led_mod_1[8] = {0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f}; //LED从左到右点亮
uchar code led_mod_2[8] = {0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe}; //LED从右到左点亮
uchar code led_mod_3[8] = {0xfe,0xfc,0xf8,0xf0,0xe0,0xc0,0x80,0x00}; //从左到右依次点亮
uchar code led_mod_4[8] = {0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe,0xff}; //从右到左依次点亮
uchar code led_mod_5[4] = {0xe7,0xc3,0x81,0x00}; //中间两个向傍边点亮
//uchar code led_mod_6[8] = {}; //产生堆积的效果
bit led_mod_select; //LED流水灯模式切换标志，0：手动切换：1：自动切换
uchar time = 50; //计时时间,计时time*10ms
uchar mod_count = 0; //模式计数
uchar output_count = 0; //状态输到LED接口计数
bit stop; //停止/运行标志，0：运行；1：停止
bit suspend; //暂停/继续标志，0：继续；1：暂停
void delay_ms(uint n) //延时函数，单位时间为1ms左右
{
uint i;
uchar j;
for(i=0;i<n;i++)
for(j=0;j<110;j++);
}
void led_output(uchar *led_out,uchar num,uchar *num_count,uchar *led_mod) //向LED接口输出8种状态
{
LED = *(led_out+*num_count);
(*num_count)++;
if(*num_count>=num)
{
*num_count = 0;
if(led_mod_select) //自动切换模式
{
(*led_mod)++; //切换到下一个模式
}
}
}
uchar key_scan() //按键扫描
{
uchar key_val;
KEY = 0xff;
if(KEY!=0xff)
{
KEY = 0xff;
delay_ms(10); //按键消抖
if(KEY!=0xff)
{
key_val = KEY;
// key_val = key_val&0x07; //按键只接低3位I/O口，需要屏蔽高5位I/O口
while(KEY!=0xff) //按键是否释放
KEY = 0xff;
return key_val; //返回按键值
}
}
return 0; //无按键按下
}
void key_function() //按键功能
{
uchar val;
val = key_scan();
switch(val)
{
case 0xfe: //上一个模式
if((0==stop)&&(0==suspend)) //处于运行和继续的状态
{
if(led_mod_select==0)
{
mod_count --;
output_count = 0;
}
}
break;
case 0xfd: //下一个模式
if((0==stop)&&(0==suspend))
{
if(led_mod_select==0)
{
mod_count ++;
output_count = 0;
}
}
break;
case 0xfb: //模式切换
if((0==stop)&&(0==suspend))
{
led_mod_select = ~led_mod_select;
INDICATOR = led_mod_select;
output_count = 0;
mod_count = 0;
}
break;
case 0xf7: //时间加
if((0==stop)&&(0==suspend))
{
time = time+10;
if(time>=100)
{
time = 100;
}
}
break;
case 0xef: //时间减
if((0==stop)&&(0==suspend))
{
if(time<10)
{
time = 10;
}
time = time-10;
}
break;
case 0xdf: //暂停/继续
if(0==stop)
{
suspend = ~suspend;
if(suspend)
{
TR0 = 0;
}
else
{
TR0 = 1;
}
}
break;
case 0xbf: //停止/开始
stop = ~stop;
if(stop)
{
TR0 = 0; //定时器停止计数
//初始化变量
LED = 0xff;
led_mod_select = 1;
suspend = 0;
INDICATOR = led_mod_select;
led_mod_select = 1; //LED流水灯自动切换
time = 50; //计时时间,计时time*10ms
mod_count = 0; //模式计数从0开始
output_count = 0; //数组的第一个状态
}
else
{
TR0 = 1; //定时器开始计数
}
break;
case 0x7f:
break;
default:break;
}
}
void main_init() //主函数初始化
{
led_mod_select = 1; //LED流水灯自动切换
TMOD = 0x01; //初始化定时器寄存器
TH0 = (0xffff-10000)/256; //10ms的计时值初值
TL0 = (0xffff-10000)%256;
IE = 0x82;
TR0 = 1;
}
void main() //主函数
{
main_init();
while(1)
{
key_function();
}
}
void led_display() interrupt 1
{
static uchar time_count = 0; //时间计数，单位时间为10ms
TH0 = (0xffff-10000)/256; //重装10ms的计时值
TL0 = (0xffff-10000)%256;
time_count++;
if(time_count>=time)
{
time_count = 0;
switch(mod_count)
{
case 0: led_output(led_mod_1,8,&output_count,&mod_count); break;
case 1: led_output(led_mod_2,8,&output_count,&mod_count); break;
case 2: led_output(led_mod_3,8,&output_count,&mod_count); break;
case 3: led_output(led_mod_4,8,&output_count,&mod_count); break;
case 4: led_output(led_mod_5,4,&output_count,&mod_count); break;
default: mod_count = 0; break;
}
}
}
