2.asm

这是一个实现串口通讯的实验

ORG 0000H
MOV DPTR,#TABLE
MOV TMOD,#20H
MOV TH1,#0E6H
MOV TL1,#0E6H
SETB TR1
MOV SCON,#50H
START:
L0:JBC RI,L1
AJMP L0
L1:MOV A,SBUF
MOVC A,@A+DPTR
MOV SBUF,A
L2:JBC TI,L3
AJMP L2
L3:SJMP START
TABLE:  DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H
        DB 7FH,6FH,77H,7CH,39H,5EH,79H,71H
END