adcldr.lst

大量ADuc831的程序员代码

ADCLDR                                                                                                        PAGE 1

                       1    ;********************************************************************
                       2    ;
                       3    ; Author        : ADI - Apps            www.analog.com/MicroConverter
                       4    ;
                       5    ; Date          : March 2001
                       6    ;
                       7    ; File          : ADCldr.asm
                       8    ;
                       9    ; Hardware      : ADuC831
                      10    ;
                      11    ; Description   : Performs repeated single ADC conversions on ADC1
                      12    ;                 Adjusts output of DAC0 to vary with LDR 
                      13    ;                 
                      14    ;               
                      15    ;********************************************************************
                      16    
                      17    $MOD831                         ; Use 8052&ADuC831 predefined symbols
                      18    
  0003                19    CHAN    EQU     3               ; convert this ADC input channel..
                      20                                    ; ..chan values can be 0 thru 6
                      21    ;____________________________________________________________________
                      22                                                      ; BEGINNING OF CODE
----                  23    CSEG
                      24    
0000                  25    ORG 0000h
                      26    
0000 02004B           27            JMP     MAIN            ; jump to main program
                      28    ;____________________________________________________________________
                      29                                                 ; INTERRUPT VECTOR SPACE
                      30            
                      31    
                      32    ;====================================================================
                      33                                                           ; MAIN PROGRAM
004B                  34    ORG 004Bh
                      35    
004B                  36    MAIN:
                      37    
                      38    ; PRECONFIGURE...
                      39    
004B 75EF80           40            MOV     ADCCON1,#080h   ; power up ADC
004E 75D803           41            MOV     ADCCON2,#CHAN   ; select channel to convert
0051 75FD3D           42            MOV     DACCON,#03DH    ; Dac 0  0-5V 12bits
                      43            
                      44    
                      45    ; PERFORM REPEATED SINGLE CONVERSIONS...
                      46    
0054 D2DC             47    AGAIN:  SETB    SCONV           ; innitiate single ADC conversion
                      48                                    ; ADC ISR is called upon completion
0056 30DFFD           49            JNB     ADCI,$
0059 C2DF             50            CLR     ADCI
005B 85DAFA           51            MOV     DAC0H,ADCDATAH
005E 85D9F9           52            MOV     DAC0L,ADCDATAL
                      53            
0061 80F1             54            JMP     AGAIN   
                      55            
                      56    ;____________________________________________________________________
                      57    END

VERSION 1.2h ASSEMBLY COMPLETE, 0 ERRORS FOUND
ADCLDR                                                                                                        PAGE 2

ADCCON1. . . . . . . . . . . . .  D ADDR  00EFH  PREDEFINED  
ADCCON2. . . . . . . . . . . . .  D ADDR  00D8H  PREDEFINED  
ADCDATAH . . . . . . . . . . . .  D ADDR  00DAH  PREDEFINED  
ADCDATAL . . . . . . . . . . . .  D ADDR  00D9H  PREDEFINED  
ADCI . . . . . . . . . . . . . .  B ADDR  00DFH  PREDEFINED  
AGAIN. . . . . . . . . . . . . .  C ADDR  0054H  
CHAN . . . . . . . . . . . . . .    NUMB  0003H  
DAC0H. . . . . . . . . . . . . .  D ADDR  00FAH  PREDEFINED  
DAC0L. . . . . . . . . . . . . .  D ADDR  00F9H  PREDEFINED  
DACCON . . . . . . . . . . . . .  D ADDR  00FDH  PREDEFINED  
MAIN . . . . . . . . . . . . . .  C ADDR  004BH  
SCONV. . . . . . . . . . . . . .  B ADDR  00DCH  PREDEFINED