通信发送.asm

电子时钟的单片机设计

        org     0000h
        ljmp    main
        ;org     0023h
;sub1:   ajmp    sub2
        org     0030h
main:   mov     tmod,#20h
        mov     tl1,#0f3h
        mov     th1,#0f3h
        clr     et1
        setb    ea
        clr     es
        anl     PCON,#7FH
        SETB    TR1
        MOV     SCON,#40H
        MOV     SBUF,#05H
await1: jnb     ti,await1
        clr     ti
        mov     sbuf,#00h
        setb    es
        end