单片机跑马灯程序 汇编语言编写,很简单答:程序1: ORG 0000H LJMP MAIN ORG 0030HMAIN: MOV SP,#5FHLOOP: MOV A,P2 MOV B,A MOV P0,A MOV P1,#0FFHLOOP1: LCALL DELAY MOV C,P1.7 MOV A,P0 RLC A MOV P0,A MOV A,P1 RLC A MOV P1,A MOV A,P2 CJNE A,B,...
怎么用单片机按键控制循环跑马灯???答:/*硬件电路连接:流水灯接在P0口, 阳极接高电平,阴极接P0口,4个按键分别接P3.4,P3.5, P3.6,P3.7 ,按下时是低电平 */ include <regx51.h> sbit key1=P3^4;sbit key2=P3^5;sbit key3=P3^6;sbit key4=P3^7;int a[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};/...