芯片为EM78P153
P64,P65接晶振,振荡模式为4MHz晶振
看门狗关,指令周期为2个CLOCK,P63为复位脚
*******************IO口的定义*********************
PORT6 EQU 0X06
IOC60 EQU 0X06
**************特殊功能寄存器的定义******************
TCC EQU 0X01
PC EQU 0X02
PSW EQU 0X03
IOCD0 EQU 0X0D
IOCE0 EQU 0X0E
IOCF0 EQU 0X0F
RF EQU 0X0F
***************用户自定义的寄存器*******************
COUNTER EQU 0X10
CODE1 EQU 0X11
CODE2 EQU 0X12
CODE3 EQU 0X13
CODE4 EQU 0X14
LP_CNT0 EQU 0X15
LP_CNT1 EQU 0X16
TEMP EQU 0X17
TEMPCODE EQU 0X18
REPEAT_COUNTER EQU 0X19
SEND_DATA EQU 0X1A
USER_CODE EQU 0X1B
FLAG EQU 0X1C
*******************FLAG位定义**********************
C EQU 0
Z EQU 2
TCIF EQU 0
LEAD EQU 0
REPEAT EQU 1
INPUT EQU 1
OUTPUT EQU 0
ORG 0X000
NOP
NOP
NOP
NOP
JMP 0X50
********************表格转换子程序程序******************
TABLE_CONVER:
CLR TEMP
TABLE_CONVER_1:
MOV A,TEMP
CALL TABLE_CONVERSION_IN
BC PSW,Z
XOR A,CODE3
JBC PSW,Z
JMP EXIT_5
INC TEMP
JMP TABLE_CONVER_1
EXIT_5:
CALL TABLE_CONVERSION_OUT
RET
**********************表格转换程序IN*********************
TABLE_CONVERSION_IN:
ADD PC,A
RETL 0XD0 KEY_1
RETL 0X58 KEY_2
RETL 0XD8 KEY_3
RETL 0X90 KEY_4
RETL 0X18 KEY_5
RETL 0X98 KEY_6
RETL 0XE0 KEY_7
RETL 0X68 KEY_8
RETL 0XE8 KEY_9
RETL 0X28 KEY_0
RETL 0X20 KEY_3D
RETL 0XA0 KEY_MUTE
RETL 0X40 KEY_VOCAL
RETL 0XE2 KEY_VOL+
RETL 0XA2 KEY_VOL-
RETL 0X52 KEY_TUNE FWD
RETL 0X22 KEY_TUNE REV
RETL 0X12 KEY_STOP
RETL 0X80 KEY_<|
RETL 0X82 KEY_|>
RETL 0X02 KEY_OK
RETL 0XF0 KEY_TUNER
RETL 0X78 KEY_AM/FM
RETL 0XF8 KEY_SAVE
RETL 0X50 KEY_AUDIO
**********************表格转换程序OUT*********************
TABLE_CONVERSION_OUT:
MOV A,TEMP
ADD PC,A
RETL 0X35 KEY_1
RETL 0X2D KEY_2
RETL 0X25 KEY_3
RETL 0X1D KEY_4
RETL 0X34 KEY_5
RETL 0X2C KEY_6
RETL 0X24 KEY_7
RETL 0X1C KEY_8
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
BS PORT6,OUTPUT
CALL JUDGE_REPEAT_CODE 扫描引导码是否在重复?
JBS FLAG,LEAD
JMP SCAN_LEAD_CODE
JBC FLAG,REPEAT
JMP REP 引导码是重复,继续扫描
JMP RECEIVE_DATA_PROCEE 引导码不重复,去接收新数据
****************引导码的检测子程序*****************
JUDGE_START_CODE:
CLR COUNTER 清计数器
JUDGE_START_CODE_0:
JBC PORT6,INPUT
JMP NO_HIGH
CALL DELAY0.5MS
JBC PORT6,INPUT
JMP NO_HIGH
INC COUNTER
JMP JUDGE_START_CODE_0
NO_HIGH:
MOV A,COUNTER
BC PSW,C
SUB A,@20 20-A
JBS PSW,C
JMP EXIT_0 C=1,COUNTER>20
MOV A,COUNTER
BC PSW,C
SUB A,@16 16-A
JBC PSW,C
JMP EXIT_0 C=0,COUNTER<16
BS FLAG,LEAD
EXIT_0:
JBC PORT6,INPUT
JMP EXIT_0
INC REPEAT_COUNTER
RET
****************接收数据子程序**********************
RECEIVE_DATA:
MOV A,@8
MOV COUNTER,A
MOV A,@0B00100000
CONTW 停止记数
CONTINUE_1:
JBS PORT6,INPUT
JMP CONTINUE_1
CLR TCC
MOV A,@0B00000100
CONTW TCC开始记数
CONTINUE_2:
MOV A,TCC
MOV TEMP,A
BC PSW,C
SUB A,@250
JBS PSW,C
JMP SCAN_LEAD_CODE C=0,TCC>250
JBC PORT6,INPUT
JMP CONTINUE_2
MOV A,TCC
MOV TEMP,A
BC PSW,C
SUB A,@60142
JBC PSW,C
JMP X1 C=1,TCC<60
JMP X2 C=0,TCC>60
X1:
BC TEMPCODE,0
JMP EXIT_1
X2:
BS TEMPCODE,0
JMP EXIT_1
EXIT_1:
DJZ COUNTER
JMP HH
MOV A,@0B00100000
CONTW 停止记数
RET
HH:
BC PSW,C
RLC TEMPCODE
JMP CONTINUE_1
****************发送数据子程序**********************
TRANSMIT_DATA:
MOV A,@4
MOV COUNTER,A
MOV A,USER_CODE @0B10010000 发送ST的用户码
MOV SEND_DATA,A
CYCLE_1:
JBS SEND_DATA,7
JMP SEND_P_0
JMP SEND_P_1
SEND_P_1:
CALL SEND_CODE_1
JMP EXIT_3
SEND_P_0:
CALL SEND_CODE_0
JMP EXIT_3
EXIT_3:
RLC SEND_DATA
DJZ COUNTER
JMP CYCLE_1
MOV A,@8
MOV COUNTER,A
MOV A,CODE3
MOV SEND_DATA,A
RLC SEND_DATA
CYCLE_2:
JBS SEND_DATA,7
JMP SEND_Q_0
JMP SEND_Q_1
SEND_Q_1:
CALL SEND_CODE_1
JMP EXIT_4
SEND_Q_0:
CALL SEND_CODE_0
JMP EXIT_4
EXIT_4:
RLC SEND_DATA
DJZ COUNTER
JMP CYCLE_2
RET
***************发送数据1子程序********************
SEND_CODE_1:
MOV A,@0B00100000
CONTW 停止记数
MOV A,@0B00000001 允许TCC中断
IOW IOCF0
MOV A,@35 引导脉冲的预置值
MOV TCC,A
MOV A,@0B00000001 选择预分频比为1:4
CONTW
BC PORT6,OUTPUT
WAIT_1:
JBS RF,TCIF
JMP WAIT_1
MOV A,@0B00100000
CONTW 停止记数
BC RF,TCIF
MOV A,@32 代码1的预置值
MOV TCC,A
MOV A,@0B00000101 选择预分频比为1:64
CONTW
BS PORT6,OUTPUT
WAIT_2:
JBS RF,TCIF
JMP WAIT_2
BC RF,TCIF
MOV A,@0B00100000
CONTW 停止记数
RET
***************发送数据0子程序********************
SEND_CODE_0:
MOV A,@0B00100000
CONTW 停止记数
MOV A,@0B00000001 允许TCC中断
IOW IOCF0
MOV A,@35 引导脉冲的预置值
MOV TCC,A
MOV A,@0B00000001 选择预分频比为1:4
CONTW
BC PORT6,OUTPUT
WAIT_3:
JBS RF,TCIF
JMP WAIT_3
MOV A,@0B00100000
CONTW 停止记数
BC RF,TCIF
MOV A,@114 代码0的预置值
MOV TCC,A
MOV A,@0B00000101 选择预分频比为1:64
CONTW
BS PORT6,OUTPUT
WAIT_4:
JBS RF,TCIF
JMP WAIT_4
NOP
BC RF,TCIF
MOV A,@0B00100000
CONTW 停止记数
RET
****************重复码的检测子程序******************
JUDGE_REPEAT_CODE:
CLR COUNTER 清计数器
CLR FLAG
JUDGE_REPEAT_CODE_0:
JBC PORT6,INPUT
JMP JUDGE_REPEAT_CODE_0
SS:
JBC PORT6,INPUT
JMP JUDGE_REPEAT_CODE_1
CALL DELAY0.5MS
JBC PORT6,INPUT
JMP JUDGE_REPEAT_CODE_1
INC COUNTER
JMP SS
JUDGE_REPEAT_CODE_1:
MOV A,COUNTER
BC PSW,C
SUB A,@20 20-A
JBS PSW,C
JMP EXIT_2 C=1,COUNTER>20
MOV A,COUNTER
BC PSW,C
SUB A,@16 16-A
JBC PSW,C
JMP EXIT_2 C=0,COUNTER<16
BS FLAG,LEAD
JMP JUDGE_REPEAT_CODE_2
EXIT_2:
RET
JUDGE_REPEAT_CODE_2:
CLR COUNTER 清计数器
JUDGE_REPEAT_CODE_3:
JBS PORT6,INPUT
JMP JUDGE_REPEAT_CODE_4
CALL DELAY0.5MS
JBS PORT6,INPUT
JMP JUDGE_REPEAT_CODE_4
INC COUNTER
JMP JUDGE_REPEAT_CODE_3
JUDGE_REPEAT_CODE_4:
MOV A,COUNTER
BC PSW,C
SUB A,@7 7-A
JBS PSW,C
JMP NO_REPEAT C=0,COUNTER>7
JMP YES_REPEAT C=1,COUNTER<7
NO_REPEAT:
BC FLAG,REPEAT
CLR REPEAT_COUNTER
RET
YES_REPEAT:
BS FLAG,REPEAT
INC REPEAT_COUNTER
RET
****************延时0.5mS子程序*********************
DELAY0.5MS:
MOV A,@2
MOV LP_CNT0,A
DELAY0.5MS_1:
MOV A,@82
MOV LP_CNT1,A
DELAY0.5MS_2:
NOP
NOP
NOP
DJZ LP_CNT1
JMP DELAY0.5MS_2
DJZ LP_CNT0
JMP DELAY0.5MS_1
RET