|
ORG 0000H AJMP MAIN ORG 0003H MAIN: CLR P2.0 ; 红灯 MOV P0,#90H LCALL DELAY MOV P0,#80H LCALL DELAY MOV P0,#0F8H LCALL DELAY MOV P0,#82H LCALL DELAY MOV P0,#92H LCALL DELAY MOV P0,#99H LCALL DELAY MOV P0,#0B0H LCALL DELAY MOV P0,#0A4H LCALL DELAY MOV P0,#0F9H LCALL DELAY MOV P0,#0C0H LCALL DELAY SETB P2.0 CLR P2.2 ;绿灯 MOV P0,#90H LCALL DELAY MOV P0,#80H LCALL DELAY MOV P0,#0F8H LCALL DELAY MOV P0,#82H LCALL DELAY MOV P0,#92H LCALL DELAY MOV P0,#99H LCALL DELAY MOV P0,#0B0H LCALL DELAY MOV P0,#0A4H LCALL DELAY SETB P2.2 CLR P2.1 ;黄灯 LCALL DELAY MOV P0,#0F9H LCALL DELAY SETB P2.1 LCALL DELAY CLR P2.1 LCALL DELAY MOV P0,#0C0H LCALL DELAY SETB P2.1 LCALL DELAY CLR P2.1 LCALL DELAY SETB P2.1 LCALL DELAY LJMP MAIN RET DELAY:MOV R0,#10 AA:MOV R1,#200 CC:MOV R2,#248 DD:DJNZ R2,DD DJNZ R1,CC DJNZ R0,AA RET END |
