Question

求at89c51单片机和adc0809 ad转换器的连接方法 有图的发847926557@qq.com

最好发个PROTEUS原图 好的加分

Answer 1

把8031直接换成8951就行啦
管脚是一样的

电路如图

程序如下

#include <reg52.h>
#define uint unsigned int
#define uchar unsigned char

uchar code LEDData[]=
{
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)
{
uchar i;
while(ms--)
{
for(i=0;i<120;i++);
}
}

void Display_Result(uchar d)
{
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
{
CLK = !CLK;
}

Answer 2

呵呵，如果谁有也顺便发给我吧，我也要做这个，十分感谢啊。我的542371324@qq.com

Answer 3

pokopkpo

Answer 4

求连接方法 个图 有的5405001@qq.com