adc.asm

8051 进行加解密的源代码

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;Copy right Notice;;;;;;;;;;;;;;;;
;;This program is for personal use only.You may change/modify it regarding ur requirements. 
;;This program has been tested and verfied, but in case of any queries, feel free to 
;;email([e-mail]) me.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;##################################Program for Data Acquisition using ADC with 16 channel
;This can be used with any 8-16 bit ADC, with or without MUX
;channel selection on P2.0 --- P2.3: ADC Start coversion on P2.4: ADC busy on P2.5 
;ADC data input at P0(lowbyte) and P1(highbyte)
;Data is  output serially starting from CHANNEL1 to CHANNEL10 
;Each sampling cycle is initiated by receiving 00H on serial port.
        ORG  0000H
	SJMP MAIN
		

MAIN:   MOV SP,#20H
        MOV SCON,#52H           ;#Mode 1-8 bit uart

	MOV TMOD,#21H           ; # TIMER 1 IN AUTORELOAD MODE AND 0 IN 16 BIT TIMER MODE

        MOV TH1,#-13D           ;  #2400 bit/sec buad rate
	SETB TR1
	CLR RI
	SETB TI
	;############
	
	MOV P2,#0FFH            ; INITIALIZE
        MOV A,#'S'
        ACALL SEND

AGAIN:  MOV SP,#20H
        ACALL RECEV
        CJNE A,#0H,AGAIN

;;;;;;;;;;;;;;;;;;;;;;;;;; DATA SAVING SECTION;;;;;;;;;;;;;;;;
        ACALL CH_1
        ACALL SAVE_D1
       
        ACALL CH_2
        ACALL SAVE_D2
        
        ACALL CH_3
        ACALL SAVE_D3
        
        ACALL CH_4
        ACALL SAVE_D4
        
        ACALL CH_5
        ACALL SAVE_D5
        
        ACALL CH_6
        ACALL SAVE_D6
        
        ACALL CH_7
        ACALL SAVE_D7
        
        ACALL CH_8
        ACALL SAVE_D8

        ACALL CH_9
        ACALL SAVE_D9

        ACALL CH_10
        ACALL SAVE_D10

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; DATA SENDING SECTION;;;;;;;

        ACALL SEND_D1
        ACALL SEND_D2
        ACALL SEND_D3
        ACALL SEND_D4
        ACALL SEND_D5
        ACALL SEND_D6
        ACALL SEND_D7
        ACALL SEND_D8
        ACALL SEND_D9
        ACALL SEND_D10



        ACALL AGAIN

;####################MAIN PROGRAM ENDS HERE##########################


SAVE_D1: 
	ACALL START_CONV  ;START CONVERSION

        ACALL BANK1
        MOV P0,#0FFH         ; low byte
        MOV R0,P0

        ACALL BANK2
        MOV P1,#0FFH         ;high byte
        MOV R0,P1
                
        RET
	
SAVE_D2: 
	ACALL START_CONV  ;START CONVERSION

        ACALL BANK1
        MOV P0,#0FFH         ; low byte
        MOV R1,P0

        ACALL BANK2
        MOV P1,#0FFH         ;high byte
        MOV R1,P1
                
        RET
SAVE_D3: 
	ACALL START_CONV  ;START CONVERSION

        ACALL BANK1
        MOV P0,#0FFH         ; low byte
        MOV R2,P0

        ACALL BANK2
        MOV P1,#0FFH         ;high byte
        MOV R2,P1
                
        RET
SAVE_D4: 
	ACALL START_CONV  ;START CONVERSION

        ACALL BANK1
        MOV P0,#0FFH         ; low byte
        MOV R3,P0

        ACALL BANK2
        MOV P1,#0FFH         ;high byte
        MOV R3,P1
                
        RET
SAVE_D5: 
	ACALL START_CONV  ;START CONVERSION

        ACALL BANK1
        MOV P0,#0FFH         ; low byte
        MOV R4,P0

        ACALL BANK2
        MOV P1,#0FFH         ;high byte
        MOV R4,P1
                
        RET
SAVE_D6: 
	ACALL START_CONV  ;START CONVERSION

        ACALL BANK1
        MOV P0,#0FFH         ; low byte
        MOV R5,P0

        ACALL BANK2
        MOV P1,#0FFH         ;high byte
        MOV R5,P1
                
        RET
SAVE_D7: 
	ACALL START_CONV  ;START CONVERSION

        ACALL BANK1
        MOV P0,#0FFH         ; low byte
        MOV R6,P0

        ACALL BANK2
        MOV P1,#0FFH         ;high byte
        MOV R6,P1
                
        RET
SAVE_D8: 
	ACALL START_CONV  ;START CONVERSION

        ACALL BANK1
        MOV P0,#0FFH         ; low byte
        MOV R7,P0

        ACALL BANK2
        MOV P1,#0FFH         ;high byte
        MOV R7,P1
                
        RET

SAVE_D9: 
	ACALL START_CONV  ;START CONVERSION

        ACALL BANK3
        MOV P0,#0FFH         ; low byte
        MOV R0,P0

        ACALL BANK4
        MOV P1,#0FFH         ;high byte
        MOV R0,P1
                
        RET


SAVE_D10: 
	ACALL START_CONV  ;START CONVERSION

        ACALL BANK3
        MOV P0,#0FFH         ; low byte
        MOV R1,P0

        ACALL BANK4
        MOV P1,#0FFH         ;high byte
        MOV R1,P1
                
        RET

SEND:        
S:      JNB TI,S                    ;##########################TRANSMISSION ROUTINE
	CLR TI
        CLR TR1
        SETB TR1
	MOV SBUF,A
	RET

RECEV:
R:      JNB RI,R                ;##########################RECEPTION ROUTINE########
	CLR RI
	MOV A,SBUF
	RET


DELAY:  MOV R7,#0FFH     ;DELAY REGISTER "I mSEC"
REP:
        NOP
	NOP
        DJNZ R7,REP
        MOV R7,#0H
	RET


START_CONV:
	CLR	P2.4	;START CONVERSION BY LOW PULSE METHOD
	NOP
	SETB	P2.4
        ;;;;;;;;;;
        SETB P2.5        ; USING P2.5 AS INPUT PIN
	;;;;;;;;;;
	JNB	P2.5,$
	JB	P2.5,$	; TC=35 uS BUSY/CONVERSION
	RET

BANK1:    CLR RS0
          CLR RS1
          RET

BANK2:    SETB RS0
          CLR RS1
          RET

BANK3:    CLR RS0
          SETB RS1
          RET

BANK4:    SETB RS0
          SETB RS1
          RET


SEND_D1:
          ACALL BANK2
          MOV A,R0
          ACALL SEND
          ACALL RECEV
          ACALL BANK1
          MOV A,R0
          ACALL SEND
          ACALL RECEV
          RET

SEND_D2:
          ACALL BANK2
          MOV A,R1
          ACALL SEND
          ACALL RECEV
          ACALL BANK1
          MOV A,R1
          ACALL SEND
          ACALL RECEV
          RET

SEND_D3:
          ACALL BANK2
          MOV A,R2
          ACALL SEND
          ACALL RECEV
          ACALL BANK1
          MOV A,R2
          ACALL SEND
          ACALL RECEV
          RET


SEND_D4:
          ACALL BANK2
          MOV A,R3
          ACALL SEND
          ACALL RECEV
          ACALL BANK1
          MOV A,R3
          ACALL SEND
          ACALL RECEV
          RET

SEND_D5:
          ACALL BANK2
          MOV A,R4
          ACALL SEND
          ACALL RECEV
          ACALL BANK1
          MOV A,R4
          ACALL SEND
          ACALL RECEV
          RET


SEND_D6:
          ACALL BANK2
          MOV A,R5
          ACALL SEND
          ACALL RECEV
          ACALL BANK1
          MOV A,R5
          ACALL SEND
          ACALL RECEV
          RET

SEND_D7:
          ACALL BANK2
          MOV A,R6
          ACALL SEND
          ACALL RECEV
          ACALL BANK1
          MOV A,R6
          ACALL SEND
          ACALL RECEV
          RET

SEND_D8:
          ACALL BANK2
          MOV A,R7
          ACALL SEND
          ACALL RECEV
          ACALL BANK1
          MOV A,R7
          ACALL SEND
          ACALL RECEV
          RET

SEND_D9:
          ACALL BANK4
          MOV A,R0
          ACALL SEND
          ACALL RECEV
          ACALL BANK3
          MOV A,R0
          ACALL SEND
          ACALL RECEV
          RET

SEND_D10:
          ACALL BANK4
          MOV A,R1
          ACALL SEND
          ACALL RECEV
          ACALL BANK3
          MOV A,R1
          ACALL SEND
          ACALL RECEV
          RET

CH_1:
	CLR P2.0
	CLR P2.1
	CLR P2.2
	CLR P2.3
	RET
CH_2:
	SETB P2.0
	CLR P2.1
	CLR P2.2
	CLR P2.3
	RET   
CH_3:
	CLR P2.0
	SETB P2.1
	CLR P2.2
	CLR P2.3
	RET   
CH_4:
	SETB P2.0
	SETB P2.1
	CLR P2.2
	CLR P2.3
	RET   
CH_5:
	CLR P2.0
	CLR P2.1
	SETB P2.2
	CLR P2.3
	RET 
CH_6:
	SETB P2.0
	CLR P2.1
	SETB P2.2
	CLR P2.3
	RET   
CH_7:
	CLR P2.0
	SETB P2.1
	SETB P2.2
	CLR P2.3
	RET   
CH_8:
	SETB P2.0
	SETB P2.1
	SETB P2.2
	CLR P2.3
	RET   
CH_9:
	CLR P2.0
	CLR P2.1
	CLR P2.2
	SETB P2.3
	RET   
CH_10:
	SETB P2.0
	CLR P2.1
	CLR P2.2
	SETB P2.3
	RET   
CH_11:
	CLR P2.0
	SETB P2.1
	CLR P2.2
	SETB P2.3
	RET   
CH_12:
	SETB P2.0
	SETB P2.1
	CLR P2.2
	SETB P2.3
	RET   
CH_13:
	CLR P2.0
	CLR P2.1
	SETB P2.2
	SETB P2.3
	RET   
CH_14:
	SETB P2.0
	CLR P2.1
	SETB P2.2
	SETB P2.3
	RET   
CH_15:
	CLR P2.0
	SETB P2.1
	SETB P2.2
	SETB P2.3
	RET   
CH_16:
	SETB P2.0
	SETB P2.1
	SETB P2.2
	SETB P2.3
	RET   
        END