ADC0809模数转换与显示实例 -

标题: ADC0809模数转换与显示实例 [打印本页]

作者: ziba108 时间: 2018-6-8 11:55
标题: ADC0809模数转换与显示实例

ADC0809模数转换与显示实例

以下51单片机加ADC0809模数转换与显示实例对于初学者学习A/D原理很有帮助。
--------------------------------------------------------------------------------------------------

#include <reg52.h>

#define uint unsigned int

#define uchar unsigned char

uchar code LEDData[]= //定义数码管数字

{

0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f

};

sbit OE = P1^0;

sbit EOC = P1^1;

sbit ST = P1^2;

sbit CLK = P1^3;

void DelayMS(uint ms) { //延迟模块

uchar i;

while(ms--)

{

for(i=0;i<120;i++);

}

void Display_Result(uchar d) { //A/D转换结果返回模块

P2 = 0xf7;

P0 = LEDData[d%10];

DelayMS(5);

P2 = 0xfb;

P0 = LEDData[d%100/10];

DelayMS(5);

P2 = 0xfd;

P0 = LEDData[d/100];

DelayMS(5);

}

void main() {

TMOD = 0x02;

TH0 = 0x14;

TL0 = 0x00;

IE = 0x82;

TR0 = 1;

P1 = 0x3f;

while(1) {

ST = 0;

ST = 1;

ST = 0;

while(EOC == 0);

OE = 1;

Display_Result(P3);

OE = 0;

}

void Timer0_INT() interrupt 1 //中断程序

{

CLK = !CLK;

}

0809.jpg (121.54 KB, 下载次数: 93)

51单片机ADC0809模数转换与显示实例.docx

31.46 KB, 下载次数: 92, 下载积分: 黑币 -5

作者: ymj；‘。’ 时间: 2020-5-28 20:14
没有仿真

作者: 91532 时间: 2020-6-1 15:02
感谢楼主

欢迎光临 (http://www.51hei.com/bbs/)