|
|
今天剛學(xué)習(xí)了A/D轉(zhuǎn)換器，設(shè)計(jì)了一個可測試滑動變阻器電壓的簡易程序代碼如下：
#include<reg51.h>
#define uint unsigned int
#define uchar unsigned char
void display(uchar bai,uchar shi,uchar ge);
void delay(unsigned int xms);
sbit st=P3^0;
sbit oe=P3^1;
sbit eoc=P3^2;
sbit w1=P2^1;
sbit w2=P2^2;
sbit w3=P2^3;
uchar code a[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
uchar adval,bai,shi,ge,t;
int main()
{
while(1)
{
st=0;
delay(1);
st=1;
delay(1);
st=0;
for(t=0;t<10;t++){
display(bai,shi,ge);
}
if(eoc=1){
oe=1;
adval=P1;
bai=adval/100;
shi=adval%100/10;
ge=adval%10;
}
}
return 0;
}
void display(uchar bai,uchar shi,uchar ge){
P0=a[bai];
w1=0;
w2=1;
w3=1;
delay(1);
P2=0xff;
P0=a[shi];
w1=1;
w2=0;
w3=1;
delay(1);
P2=0xff;
P0=a[ge];
w1=1;
w2=1;
w3=0;
delay(1);
P2=0xff;
}
void delay(unsigned int xms){
unsigned int i,j;
for(i=xms;i>0;i--)
for(j=110;j>0;j--);
}
具體仿真圖及代碼見附件
|
-
![89`PQ6[A]F](G[]5[@{LIHH.png](http://c.51hei.com/d/forum/201912/11/194557ykwl1s1e71jw1isi.png "89`PQ6[A]F](G[]5[@{LIHH.png")
-
-
簡易數(shù)字電壓表.zip
2019-12-11 19:49 上傳
點(diǎn)擊文件名下載附件
下載積分: 黑幣 -5
22.71 KB, 下載次數(shù): 41, 下載積分: 黑幣 -5
|
