用AT89C51单片机,4位共阴极数码管,显示出1234 程序怎么写??? 请各位...答:MOV 31H,#01H MOV 32H,#02H MOV 33H,#03H MOV 34H,#04H MOV 35H,#05H MOV 36H,#06H ACALL D0 JMP $-2 D0: MOV R0,#31H MOV R2,#11111110B MOV DPTR,#TAB D1: ORL P1,#00111111B MOV A,@R0 MOVC A,@A+DPTR MOV R3,#8 D2...
本人初学单片机,求第一个数码管显示1,1S后第二个数码管 显示2以此类推...答:0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x40,0x80,0x00}; //数值‘'0-F' '-' '熄灭'uchar code wema[]={0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7}; //位选,0-7位数码管 /*延时子程序*/ void delay(uint time){ while(--time);//当time的值为非0时,执行...