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...
...两位数码管实现秒计时,显示秒,能用独立按键控制开始、暂停。求单片...答:暂停CLR TR0CLR ET0SJMP LOOPLOOP3:DEC AJNZ LOOP ;清零MOV 36H,#0MOV 35H,#0MOV 34H,#0MOV 33H,#0SJMP LOOPEXTINT0:PUSH ACCINC KEYVALMOV A,KEYVALCJNE A,#3,EXT00EXT00:JC EXT01MOV KEYVAL,#0EXT01:POP ACCRETIT0ISR:PUSH ACCCLR TR0MOV TH0,#3CHMOV TL0,#0B0HSETB TR0...