给初学单片机的40个实验-1(15)

介绍了单片机的一些简单使用

DJNZ R5,$ DJNZ R4,D1 DJNZ R3,DELAY RET

TABLE: DB 0FEH,0FDH,0FBH,0F7H DB 0EFH,0DFH,0BFH,07FH DB 0FEH,0FDH,0FBH,0F7H DB 0EFH,0DFH,0BFH,07FH DB 07FH,0BFH,0DFH,0EFH DB 0F7H,0FBH,0FDH,0FEH DB 07FH,0BFH,0DFH,0EFH DB 0F7H,0FBH,0FDH,0FEH DB 00H, 0FFH,00H, 0FFH DB 01H END

7． C语言源程序

#include <AT89X51.H>

unsigned char code table[]={0xfe,0xfd,0xfb,0xf7, 0xef,0xdf,0xbf,0x7f, 0xfe,0xfd,0xfb,0xf7, 0xef,0xdf,0xbf,0x7f, 0x7f,0xbf,0xdf,0xef, 0xf7,0xfb,0xfd,0xfe, 0x7f,0xbf,0xdf,0xef, 0xf7,0xfb,0xfd,0xfe, 0x00,0xff,0x00,0xff, 0x01};

unsigned char i;

void delay(void) {

unsigned char m,n,s; for(m=20;m>0;m--) for(n=20;n>0;n--) for(s=248;s>0;s--); }

void main(void) {

while(1) {

if(table[i]!=0x01) {

P1=table[i];

百度搜索“77cn”或“免费范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读，免费范文网，提供经典小说教育文库给初学单片机的40个实验-1(15)在线全文阅读。