avr单片机带小数点数码管的程式 -

标题: avr单片机带小数点数码管的程式 [打印本页]

作者: jinsheng7533967 时间: 2018-12-15 14:33
标题: avr单片机带小数点数码管的程式

//------------2_8数码管键调时带小数点功能

#include<iom128v.h>
#define uchar unsigned char
#define uint  unsigned int

#define P0_1  PORTA |= (1<<0)
#define P0_0  PORTA &=~ (1<<0)
#define P1_1  PORTA |= (1<<1)
#define P1_0  PORTA &=~ (1<<1)
#define P2_1  PORTA |= (1<<2)
#define P2_0  PORTA &=~ (1<<2)
#define P3_1  PORTA |= (1<<3)
#define P3_0  PORTA &=~ (1<<3)
#define P4_1  PORTA |= (1<<4)
#define P4_0  PORTA &=~ (1<<4)
#define P5_1  PORTA |= (1<<5)
#define P5_0  PORTA &=~ (1<<5)
#define P6_1  PORTA |= (1<<6)
#define P6_0  PORTA &=~ (1<<6)
#define P7_1  PORTA |= (1<<7)
#define P7_0  PORTA &=~ (1<<7)

uchar i,m,h;
uint j;

uchar led_discode[]={0xc0,0xf9,0xa4,0xb0,0x99,
0x92,0x82,0xf8,0x80,0x90,0xbf,0xef,};    //共阳数码管数字码

void delay(uint mS) //微秒
{
{
uchar x,y;
for(x=0;x<mS;x++)
for(y=0;y<10;y++);
}
}

void init(void) //初始化PORUT口
{
DDRA=0XFF;          //LED IO口设为输出
PORTA=0X00;

DDRB |=0X10;          //PB4设为输出
PORTB|=0X10;          //关闭PB4外接的LED

DDRC=0XFF;          //数码管段选设为输出
PORTC=0X00;

DDRF |=0X03;          //LED及数码管锁存IO口设为输出
PORTF|=0X0E;
PORTF&=0xF7;          //锁存数据关闭数码管

DDRD=0;//全部设为输入
PORTD=0xff;//全部上拉
PIND=0xff;//设初始值
}

void playh(uchar h)
{

PORTC = led_discode[h/10] ;
P0_1;
delay(1);
P0_0;

PORTC =tablee[h%10];
P1_1;
delay(1);
P1_0;

PORTC = led_discode[10] ;
P2_1;
delay(1);
P2_0;

}

void key1(void)
{
if(PIND == 0xfe)  //按键扫描函数----------加键
{
delay(5);
if(PIND == 0xfe)
{
while(PIND == 0xfe);
m++;
}
}
}

void key2(void)
{
if(PIND == 0xfd)  //按键扫描函数----------减键
{
delay(5);
if(PIND == 0xfd)
{
while(PIND == 0xfd) play(i);
h++;

}
}
}

void main (viod)
{
init() ;
while(1)
{
key1();
key2();
j=300;
while(j--)
{
play(i); //显示函数

}
i++;
if(i==60)
{
i=0; //如果秒计满60，将秒计数变量清0
m++; //分钟计数变量加1
}
if(m == 60)
{
m=0; //如果分钟计满60，将分钟计数变量清0
h++;    //小时计数变量加1
}
if(h == 24)
{
h=0; //如果小时计满24，将小时计数变量清0
}
}
}

完全代码与仿真文件附件中

带点数码管.zip (25.14 KB, 下载次数: 15)

作者: 深蓝色的猫 时间: 2020-12-4 04:11
代码不对吧，不全

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