求用单片机驱动数码二级管的C语言程序,要求二级管显示00~99
20\u5206\u6c42c51\u5355\u7247\u673a\u9a71\u52a8\u4e09\u4f4d8\u6bb5\u6570\u7801\u7ba1\u663e\u793a0.00-9.99\uff0cc\u8bed\u8a00\u7a0b\u5e8f\u3002#include
unsigned char temp[10] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}
unsigned char table[3];
unsigned int num;
void display(unsigned int num)
{
table[0] = temp[num / 100]
table[1] = temp[num / 10 % 10 ] | 0x80;
table[2] = temp[num % 10]
}
void main()
{
EA = 1;
TMOD |= 0x21;
TH0 = 0xfc;
TL0 = 0x18;
ET0 = 1;
TR0 = 1;
while(1)
{
display(num);
}
}
void timer0() interrupt 1//\u5b9a\u65f6\u4e3a2ms
{
static unsigned char i = 0;
static unsigned int j = 0;
TH0 = 0xfc;
TL0 = 0x18;
j++;
if(i < 3)
{
P2 = 0xf8;
P1 = 0x00;
P2 = ~(1 << i);
P1 = table1[i];
i++;
}
else
i = 0;
if(j >= 1000)
{
num++;
if(num > 999)
num = 0;
j = 0;
}
\u7528\u7684\u662f\u5171\u9634\u6781\u6570\u7801\u7ba1\uff0c\u5b9a\u65f6\u5668\u5ef6\u65f6\uff0c\u4e0d\u4f1a\u51fa\u73b0\u6570\u7801\u7ba1\u6296\u52a8\u73b0\u8c61
\u5b9a\u65f6\u5668\u81ea\u52a8\u52a0\uff0c\u4f1a\u4ece0.00-9.99\u81ea\u52a8\u663e\u793a\uff0c9.99\u4ee5\u540e\u53c8\u6e050.00
\u7a0b\u5e8f\u662f\u521a\u505a\u7684\uff0c\u6ca1\u6d4b\u8bd5\u8fc7\uff0c\u4f60\u8bd5\u8bd5\uff0c\u80fd\u7528\u518d\u7ed9\u5206\u5427\u3002P0\u53e3\u662f\u4f4d\u9009\uff0cP2\u53e3\u6bb5\u9009\u3002
#include
unsigned int bittime=0;
unsigned char bitdisplay = 0;
unsigned char mg=0,ms=0;
unsigned char Tab[]={0xFC,0x60,0xDA,0xF2,0x66,0xB6,0xBE,0xE0,0xFE,
0xF6,0xEE,0x3E,0x9C,0x7A,0x9E,0x8E,0x00};
void timer0(void) interrupt 1
{
TH0=0xF0;
TL0=0x60;
switch(bitdisplay)
{
case 0:P2=Tab[mg];P0=0xFE;break;
case 1:P2=Tab[ms];P0=0xFD;break;
}
bitdisplay++;
bittime++;
if(bitdisplay>=2) bitdisplay=0;
if(bittime>=500)
{
bittime=0;
mg++;
if(mg>9) {mg=0;ms++;}
if(ms>9) ms=0;
}
}
void main(void)
{
TMOD=0x01;
TH0=0xF0;
TL0=0x60;
TR0=1;
EA=1;
while(1);
}
两位数码管显示00~99,无需采用数码管扫描，通常采用静态显示。
给你提供一个两位数码管00~99循环加法计数的CC语言程序。
程序中，采用了软件延时的方法，每半秒自动加1。
#include<reg52.h>
unsigned char count=0;
unsigned char code table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};//段码
void delay500ms(); //延时子程序声明
void display(unsigned char X); //显示子程序声明
void main()
{
while(1)
{
delay500ms();
count++;
if(count>=100)count=0;
display(count);
}
}
void delay500ms()
{
unsigned char i,j,k;
for(i=5;i>0;i--)
for(j=200;j>0;j--)
for(k=248;k>0;k--);
}
void display(unsigned char X)
{
P0=table[X/10];
P2=table[X%10];
}
硬件连接图先发给我,不然P 口不好定.
驱动二位数码管，先给数码管的端口（如是使用P0口连接）输入一个值，再延时30MS后，再改变另一位数码管的选择位，再往P0口输出数据就OK了，记得给分哦
//================数码延时T=（N*8+7）/3==============================================
void delay(unsigned int n)
{
unsigned int i;
for(i=0;i<n;i++);
}
//================数码管4位显示==============================================
void disp(unsigned char *str,unsigned char T)
{
unsigned char i,buf;
buf=0xfe;//1111 1110
for(i=0;i<2;i++)
{
P4=buf;
P0=*(str+i);
delay(T);
buf=(buf<<1)|0x01;//保证每一次只选择一个数码管
}
}
//=========================================================================
无图无真相！要有对应的电路原理图，才能知道怎么编写驱动程序。
绛旓細include<reg52.h> include<intrins.h> define uchar unsigned char define uint unsigned int uchar t,temp,flag;sbit key1=P3^4;sbit key2=P3^5;void delay(uint z){ uint x,y;for(x=z;x>0;x--)for(y=110;y>0;y--);} void init(){ TMOD=0x10;TH1=(65536-50000)/256;TL1=(...
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绛旓細cs = 0;wr = 0;//鍏佽CPU灏嗘暟鎹垨鎺у埗瀛楀啓鍏8255 // A1=1.A0=1锛涢夋嫨.鎺у埗瀵勫瓨鍣 //鍋囪00001111鎺у埗D鍙ｇ殑鏁版嵁锛屼粠A鍙ｈ緭鍑猴紱11110000鎺у埗D鍙ｇ殑鏁版嵁锛屼粠B鍙ｈ緭鍑猴紱瀹為檯鎯呭喌鐢卞疄闄呯鑴氳繛鎺ュ喅瀹氥俤0 = d1=d2= d3=0;d4 = d5=d6=d7 = 1;A1=0锛汚0=0锛涢夋嫨PA鍙 //pa鍙--鏁扮爜绠＄殑...
绛旓細include<reg52.h> define uchar unsigned char define uint unsigned int uchar w;sbit shu=P2^1;sbit shift=P2^0;sbit put=P2^2;void delay1(uint z){ uint x,y;for(x=z;x>0;x--)for(y=110;y>0;y--);} void write(uchar dat){ for(w=0;w<8;w++){ shu=dat&0x80;delay...
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绛旓細include<reg52.h> // 杩欐槸涓婂浘鐨勭▼搴忥紝鍙互浠跨湡 璇曡瘯#define uchar unsigned char#define uint unsigned intuchar i;uchar code table[]={0xf6,0xed,0xdb,0xf6,0xed,0xdb}; // 鍙戝厜浜屾瀬绠 鍙互鏈夊緢澶氭柟娉晇oid delay(uint z) // 寤舵椂绋嬪簭{ uint x,y; for(x=z;x>0;x--) ...
绛旓細include<reg52.h> define uchar unsigned char define uint unsigned int uchar count;uint disnum;sbit dula=P2^6;sbit wela=P2^7;uchar code tabledu[]={ 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};display(uchar,uchar,uchar);delay(...
绛旓細LCD_Write_Char(14,1,'C'); //鍐欏叆瀛楃Cwhile (1) //涓诲惊鐜 {if(ReadTempFlag==1) { ReadTempFlag=0; temp=ReadTemperature(); temperature=(float)temp*0.0625; sprintf(displaytemp,"Temp % 7.3f",temperature);//鎵撳嵃娓╁害鍊 LCD_Write_String(0,1,displaytemp);//鏄剧ず绗簩琛 } }}/*--- ...
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