51单片机c语言设计,按键控制数码管,依次按下显示0到9循环答:include<reg51.h> sbit k1=P1^0;define uint16 unsigned int define uchar unsigned char uchar code shuzu[ ]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};void delay(){ uint16 i=1000;while(i--);} void main(){ uchar n ;P2=0xfe;P1=0xff;while(1){ if...
汇编语言51单片机怎么用KEY 1控制数码管上显示的数字加1 KEY2控制数码...答:2)显示部分;这个是按你取七段码的思路,递增时是以 0 为结束,那么为了让递减时也以 0 为结束;因此就在前面加 0;TAB:DB 00H,3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH,77H,7CH,39H,5EH,79H,71H,00H;所以递增时 R5=1,指向 3FH,递减时 R5=10H,指向 71H,3)按键部分...
51单片机怎么用一个按键控两个数码管,按一下改变两个数字的显示速度_百 ...答: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f uchar number,dat,dattop=10,cnt=0;sbit keyu=P1^0;sbit keyd=P1^1;void t0isr() interrupt 1 { TH0...