2.sdi

这是一个实现串口通讯的实验

,,,ORG 0000H
0000,90 00 22,,MOV DPTR,#TABLE
0003,75 89 20,,MOV TMOD,#20H
0006,75 8D E6,,MOV TH1,#0E6H
0009,75 8B E6,,MOV TL1,#0E6H
000C,D2 8E,,SETB TR1
000E,75 98 50,,MOV SCON,#50H
0011,,START,START:
0011,10 98 02,L0,L0:JBC RI,L1
0014,01 11,,AJMP L0
0016,E5 99,L1,L1:MOV A,SBUF
0018,93,,MOVC A,@A+DPTR
0019,F5 99,,MOV SBUF,A
001B,10 99 02,L2,L2:JBC TI,L3
001E,01 1B,,AJMP L2
0020,80 EF,L3,L3:SJMP START
0022,3F 06 5B 4F,TABLE,TABLE:  DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H
002A,7F 6F 77 7C,,        DB 7FH,6FH,77H,7CH,39H,5EH,79H,71H
000E,,,END