led-1.dt

义隆单片机控制8个LED的渐明渐暗

port5   equ  0x05


     org  0x00
     jmp  main
     org  0x10
main:
     mov  a,@0x00
     iow  port5
     mov  a,@0x01;
     mov  port5,a
     call delay
     com  port5
     call delay
     jmp  main
delay:
     mov a,@5
     mov 0x10,a
delay1:
     mov a,@20
     mov 0x11,a
delay2:
     mov a,@250
     mov 0x12,a
delay3:
     djz 0x12
     jmp delay3
     djz 0x11
     jmp delay2
     djz 0x10
     jmp delay1
     ret
     end