51单片机数码管,用动态显示0到123怎么编程?答:0-123,需要三位数码管。include<reg51.h>#define uchar unsigned char;uchar distab[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x00}; //0到fuchar number,dat[3],nn=0,cnt=0;;void t0isr() interrupt 1{TH0=(65536-5000)...
51单片机利用矩阵按键控制数码管显示0-9数字。。。救救我吧,我快疯...答:include unsigned char code table[10]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x10};unsigned char t=0;unsigned char i=0;void Delay(unsigned char i){ unsigned char j;for(; i>0; i--)for(j=110; j>0; j--);} void DisplayLED(unsigned char n){ P0=table[n...
...1控制数码管上显示的数字加1 KEY2控制数码管上显示数字减1...答:原有key1为P3.4,添加个key2键为P3.5;1、按你显示程序的逻辑,对TAB修改如下:TAB:DB 00H,3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH,77H,7CH,39H,5EH,79H,71H,00H 即数据的首尾为0(这是个标记而已),中间才是七段码 0--F 的显示数据;2、对CK1、CK2键盘按下及松开程序...