附：程序清单;PCON EQU 87H;***********LCM103 LCM101 TEST *************;MCS-51:89C2051,89C51,89C52;fo=2.45MHz;/CS=P1.4 /WR=P1.3 DATA=P1.2 *************;RAM 20H:COMMAND CODE ********************;RAM 21H: LCD ADDR***;RAM 25H: LCD DATA*** ORG 0000H AJMP MAIN ORG 000BH AJMP wto ORG 0013H AJMP PINT1 ORG 0030HMAIN: ;ACALL STOP CLR P3.0 MOV P2,#0F0H acall ql acall start ;ACALL DELAY;ACALL LLL ;ACALL RDNBYT ;MOV 31H,41H ;MOV 32H,42H ;MOV 33H,43H ;MOV 2FH,#08H ;ACALL WRNBYT ;ACALL DELAY1 ;ACALL STARTmain2: MOV SP,#5FH MOV TMOD,#52H MOV TL0,#06H MOV TH0,#06H MOV IE,#82H SETB IT1MAIN3: ACALL KEY1 ;按键控制，前进，清零翻页 ;============ CLR P2.0 SETB P2.1 ACALL CHUAN1ZHI: MOV A,TL1 ;直道行驶 CLR C SUBB A,#30 ;230=S=(TH1,TL1)*14/6 JNC WAN ACALL KUAI AJMP ZHI;===========================;弯道行驶;=============================WAN: SETB 20H.2 ;弯道标志位 ;CLR P2.3 ;SETB P2.2 CLR P2.1 SETB P2.0 MOV 5DH,#02H DJNZ 5DH,$ CLR P2.0 SETB P2.1 ACALL MAN ;到达弯道 JB 20H.3,ZHANG ajmp wan;====================;障碍物行驶;===================ZHANG: mov 20h,#00h clr p2.3 setb p2.2 CLR P2.1 SETB P2.0 MOV 5EH,#50S50: MOV 5DH,#0FFH DJNZ 5DH,$ DJNZ 5EH,S50 CLR P2.0 SETB P3.0 mov 3fh,#05 ;定时器 5 秒程序ffdd: jnb 20h.0, $ clr 20h.0 CPL P3.0 djnz 3fh,FFDD clr p2.3 SETB p2.2 clr p2.0 setb p2.1 setb EX1 ;启用/INT1 MOV 5BH,#0FFHDTDT: MOV 5AH,#0FFH DJNZ 5AH,$ DJNZ 5BH,DTDTOK: mOV A,P0 ANL A,#7FH cjne a,#7FH,K2LZG AJMP STOP2k2lzg: JB P2.6,KKLZG ACALL LZHUAN AJMP OKKKLZG: ACALL RZHUAN AJMP OKSTOP2: MOV P2,#00H MOV IE,#00H setb p3.0 clr tr0 CLR P2.1 setb p2.0 ACALL DELAY1 ACALL DELAY1 ACALL DELAY1 nop CLR P2.0 CLR P3.0LKLK: ACALL AAA ACALL KEY1 ACALL AAA AJMP LKLK SJMP $;======================;外部中断 1;=====================PINT1: CLR EX1 PUSH ACC PUSH PSWQQ: CLR P2.0 ;前 ...
