blk2_831.lst

大量ADuc831的程序员代码

BLK2_831                                                                                                      PAGE 1

                       1    ;======================================================================
                       2    ;
                       3    ; Author        : ADI - Apps
                       4    ;
                       5    ; Date          : April 2002
                       6    ;
                       7    ; Filename      : blk2_831.asm
                       8    ;
                       9    ; Hardware      : ADuC831
                      10    ;
                      11    ; Description   : Blinks LED continuously at 5Hz
                      12    ;                     Pressing INT0 followed by a UART reception of 'U'
                      13    ;                 (for upgrade code) allows the code to be upgraded
                      14    ;
                      15    ;                       NOTE: This program will only work if the option to
                      16    ;                       always run code from E000H after download is
                      17    ;                               selected.
                      18    ;
                      19    ;======================================================================
                      20    ;       
                      21    $MOD831
                      22    ;____________________________________________________________________
                      23                                                      ; BEGINNING OF CODE
----                  24    CSEG
0000                  25    ORG     0000H
                      26    
0000 012C             27    AJMP     MAIN
                      28    
                      29    ;____________________________________________________________________
                      30                                                               ; INT0 ISR
0003                  31    ORG     0003H
                      32            ; wait to receive a character from the UART
0003 3098FD           33            JNB     RI, $                           ; wait for reception
0006 C298             34            CLR     RI
0008 E599             35            MOV     A, SBUF
000A B4551E           36            CJNE    A, #'U', ERROR
                      37                    
                      38            ; plan to upgrade new code => set BOOTEN
000D 75C700           39            MOV     EADRH, #0
0010 75C600           40            MOV     EADRL, #0
0013 75B901           41            MOV     ECON, #1                        ; read page
0016 43BC01           42            ORL     EDATA1, #1                      ; SET LSB
0019 75B905           43            MOV     ECON, #5                        ; ERASE page
001C 75B902           44            MOV     ECON, #2                        ; program page
001F 75B904           45            MOV     ECON, #4                        ; verify page
0022 E5B9             46            MOV     A, ECON
0024 7005             47            JNZ     ERROR
                      48            ; use the watchdog timer to reset part...run from E000H after reset
                      49            
0026 D2C0             50            SETB    WDWR
0028 75C082           51            MOV     WDCON, #82h
                      52    
002B 32               53    ERROR:  RETI
                      54    
                      55    ;____________________________________________________________________
                      56                                                                   ; MAIN
002C                  57    MAIN:   
                      58            ; enable INT0
BLK2_831                                                                                                      PAGE 2

002C D288             59            SETB    IT0                     ; INT0 edge triggered
002E D2AF             60            SETB    EA                      ; enable inturrupts
0030 D2A8             61            SETB    EX0                     ; enable INT0
                      62    
                      63            ; configure UART for 115200
0032 759E81           64            MOV     T3CON, #81h
0035 759D20           65            MOV     T3FD, #20h
0038 759852           66            MOV     SCON, #52H
                      67    
003B                  68    BLINK:
003B B2B4             69            CPL     P3.4
003D 12004E           70            CALL    DELAY
0040 12004E           71            CALL    DELAY
0043 12004E           72            CALL    DELAY
0046 12004E           73            CALL    DELAY
0049 12004E           74            CALL    DELAY
004C 013B             75            AJMP    BLINK
                      76    
                      77    
                      78    ;____________________________________________________________________
                      79                                                                  ; DELAY
004E                  80    DELAY:
                      81            ; 70ms DELAY 
004E 78FF             82            MOV     R0,#255
0050                  83    DLY:
0050 79FF             84            MOV     R1,#255                 ; 255 x 255 x 1.08us
0052 D9FE             85            DJNZ    R1,$
0054 D8FA             86            DJNZ    R0,DLY
                      87    
0056 22               88            RET
                      89    ;____________________________________________________________________
                      90    
                      91    
                      92    END

VERSION 1.2h ASSEMBLY COMPLETE, 0 ERRORS FOUND
BLK2_831                                                                                                      PAGE 3

BLINK. . . . . . . . . . . . . .  C ADDR  003BH  
DELAY. . . . . . . . . . . . . .  C ADDR  004EH  
DLY. . . . . . . . . . . . . . .  C ADDR  0050H  
EA . . . . . . . . . . . . . . .  B ADDR  00AFH  PREDEFINED  
EADRH. . . . . . . . . . . . . .  D ADDR  00C7H  PREDEFINED  
EADRL. . . . . . . . . . . . . .  D ADDR  00C6H  PREDEFINED  
ECON . . . . . . . . . . . . . .  D ADDR  00B9H  PREDEFINED  
EDATA1 . . . . . . . . . . . . .  D ADDR  00BCH  PREDEFINED  
ERROR. . . . . . . . . . . . . .  C ADDR  002BH  
EX0. . . . . . . . . . . . . . .  B ADDR  00A8H  PREDEFINED  
IT0. . . . . . . . . . . . . . .  B ADDR  0088H  PREDEFINED  
MAIN . . . . . . . . . . . . . .  C ADDR  002CH  
P3 . . . . . . . . . . . . . . .  D ADDR  00B0H  PREDEFINED  
RI . . . . . . . . . . . . . . .  B ADDR  0098H  PREDEFINED  
SBUF . . . . . . . . . . . . . .  D ADDR  0099H  PREDEFINED  
SCON . . . . . . . . . . . . . .  D ADDR  0098H  PREDEFINED  
T3CON. . . . . . . . . . . . . .  D ADDR  009EH  PREDEFINED  
T3FD . . . . . . . . . . . . . .  D ADDR  009DH  PREDEFINED  
WDCON. . . . . . . . . . . . . .  D ADDR  00C0H  PREDEFINED  
WDWR . . . . . . . . . . . . . .  B ADDR  00C0H  PREDEFINED