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三個單片機串行通信，1號從機和2號從機在p1口處個接八個按鍵, 主機p0口有八個燈，另外主機在p1.0和p1.1有兩個按鍵，第一個按鍵按下接通一號從機，當(dāng)1號從機有按鍵按下時候，主機p0對應(yīng)的燈亮，同理同理主機第2個按鍵按下 接通2號從機，當(dāng)2號從機有按鍵按下時候，主機p0對應(yīng)的燈亮
程序如下，在protues 里仿真一點沒反應(yīng)，請教下誰能幫我看下程序錯在哪里怎么改? 麻煩了 謝謝！！
主機：
ORG 00H
AJMP MAIN
ORG 30H
MAIN:
MOV SCON,#98H
START: MOV A,P1
CJNE A,#0FFH,M1
SJMP START
M1: CJNE A,#0FEH,M2
SJMP L1
M2: CJNE A,#0FDH,START
SJMP L2
L1: MOV SBUF,#01H
JBC TI,S1
SJMP L1
L2: MOV SBUF,#02H
JBC TI,S2
SJMP L2
S1: JBC RI,WT1
SJMP S1
S2: JBC RI,WT2
SJMP S2
WT1: MOV A,SBUF
XRL A,#01H
JZ RIGHT
SJMP WT1
WT2: MOV A,SBUF
XRL A,#02H
JZ RIGHT
SJMP WT2
RIGHT: CLR TB8
JBC RI,REC
SJMP RIGHT
REC: MOV A,SBUF
MOV P0,A
AJMP RIGHT
END
從機：
ORG 00H
AJMP MAIN
ORG 30H
MAIN: MOV SCON,#0B0H
MOV 30H,#0FFH
M1: JBC RI,S1
SJMP M1
S1: MOV A,SBUF
XRL A,#02H
JNZ M1
MOV SBUF,#02H
MOV P0,#0FDH
WT: JBC TI,S2
SJMP WT
S2: JNB RB8,RIGHT
SETB SM2
SJMP M1
RIGHT:MOV A,P1
CJNE A,30H,SENT
JMP RIGHT
SENT: MOV 30H,A
MOV SBUF,A
WAIT: JBC TI, RIGHT
SJMP WAIT
END
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