單片機(jī)C語言程序設(shè)計(jì)：8 只數(shù)碼管滾動(dòng)顯示數(shù)字、字符

/* 名稱：8 只數(shù)碼管滾動(dòng)顯示單個(gè)數(shù)字

說明：數(shù)碼管從左到右依次滾動(dòng)顯示

0~7，程序通過每次僅循環(huán)選通一只數(shù)碼

管

*/

#includereg51.h>

#includeintrins.h>

#define uchar unsigned char

#define uint unsigned int

uchar code DSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};

//延時(shí)

void DelayMS(uint x)

{

uchar t;

while(x--) for(t=0;t120;t++);

}

//主程序

void main()

{

}

uchar i,wei=0x80;

while(1)

{

for(i=0;i8;i++)

{

P2=0xff; //關(guān)閉顯示

wei=_crol_(wei,1);

P0=DSY_CODE[i];發(fā)送數(shù)字段碼

P2=wei; //發(fā)送位碼

DelayMS(300);

}

}

/* 名稱：8 只數(shù)碼管動(dòng)態(tài)顯示多個(gè)不同字符

說明：數(shù)碼管動(dòng)態(tài)掃描顯示 0~7。

*/

#includereg51.h>

#includeintrins.h>

#define uchar unsigned char

#define uint unsigned int

uchar code DSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};