EM78P153范例程序

RETL 0X33 ;KEY_9

RETL 0X2B ;KEY_0

RETL 0X10 ;KEY_3D

RETL 0X18 ;KEY_MUTE

RETL 0X11 ;KEY_VOCAL

RETL 0X16 ;KEY_VOL+

RETL 0X15 ;KEY_VOL-

RETL 0X28 ;KEY_TUNE FWD

RETL 0X2A ;KEY_TUNE REV

RETL 0X22 ;KEY_STOP

RETL 0X31 ;KEY_<|

RETL 0X21 ;KEY_|>

RETL 0X29 ;KEY_OK

RETL 0X2E ;KEY_TUNER

RETL 0X20 ;KEY_AUX-1

RETL 0X23 ;KEY_AUX-2

RETL 0X17 ;KEY_DVD

 

ORG 0X050

MAIN:

;*********************初始化寄存器**********************

MOV A,@0B00000000

IOW IOCE0

MOV A,@0B11111101

IOW IOCD0

MOV A,@0B00000010

IOW IOC60

MOV A,@0B00000001

MOV PORT6,A

MOV A,@0B00000001

IOW IOCF0

CLR FLAG

CLR TEMPCODE

CLR COUNTER

CLR CODE1

CLR CODE2

CLR CODE3

CLR CODE4

MOV A,@0B10010000

MOV USER_CODE,A

;*********************扫描引导码**********************

SCAN_LEAD_CODE:

JBC PORT6,INPUT

JMP SCAN_LEAD_CODE

CLR FLAG

CLR REPEAT_COUNTER

CLR TEMPCODE

CALL JUDGE_START_CODE

JBS FLAG,LEAD

JMP SCAN_LEAD_CODE

;*********************接收数据**********************

RECEIVE_DATA_PROCEE:

CLR TEMPCODE

CALL RECEIVE_DATA

MOV A,TEMPCODE

MOV CODE1,A

 

MOV A,@0 ;判断用户码是否是00

BC PSW,Z

XOR A,CODE1

JBS PSW,Z

JMP SCAN_LEAD_CODE

 

 

CLR TEMPCODE

CALL RECEIVE_DATA

MOV A,TEMPCODE

MOV CODE2,A

 

MOV A,@0XFF ;判断用户码是否是FF

BC PSW,Z

XOR A,CODE2

JBS PSW,Z

JMP SCAN_LEAD_CODE

 

CLR TEMPCODE

CALL RECEIVE_DATA

MOV A,TEMPCODE

MOV CODE3,A

 

CLR TEMPCODE

CALL RECEIVE_DATA

MOV A,TEMPCODE

MOV CODE4,A

CLR FLAG

;*********************发送数据**********************

SEND_DATA_PROCEE:

JBS USER_CODE,6 ;ST码的次高位反相

JMP COM_1 ;=0

JMP COM_2 ;=1

COM_1:

BS USER_CODE,6

JMP VVV

COM_2:

BC USER_CODE,6

JMP VVV

VVV:

CALL TABLE_CONVER ;调用码表转换子程序

MOV CODE3,A

REP:

CALL TRANSMIT_DATA

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