blk1_832.lst

ＡＤuＣ８３１的详细的程序

BLK1_832                                                                                                      PAGE 1

                       1    ;======================================================================
                       2    ;
                       3    ; Author        : ADI - Apps
                       4    ;
                       5    ; Date          : April 20001
                       6    ;
                       7    ; Filename      : blk1_832.asm
                       8    ;
                       9    ; Hardware      : ADuC832 
                      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    $MOD832
                      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
0026 D2C0             49            SETB    WDWR
0028 75C082           50            MOV     WDCON, #82h
                      51    
002B                  52    ERROR:
002B 32               53            RETI
                      54    
                      55    
                      56    ;____________________________________________________________________
                      57                                                                   ; MAIN
002C                  58    MAIN:   
BLK1_832                                                                                                      PAGE 2

                      59            ; enable INT0
002C D288             60            SETB    IT0                     ; INT0 edge triggered
002E D2AF             61            SETB    EA                      ; enable inturrupts
0030 D2A8             62            SETB    EX0                     ; enable INT0
                      63    
                      64            ; configure at fastest freq
0032 75D700           65            MOV     PLLCON, #0      
                      66    
                      67            ; configure UART for 115200
0035 759E82           68            MOV     T3CON, #82h
0038 759D09           69            MOV     T3FD, #09h
003B 759852           70            MOV     SCON, #52H
                      71    
003E                  72    BLINK:
003E B2B4             73            CPL     P3.4
0040 120045           74            CALL    DELAY
0043 013E             75            AJMP    BLINK
                      76    
                      77    
                      78    ;____________________________________________________________________
                      79                                                                  ; DELAY
0045                  80    DELAY:
                      81            ; 92ms DELAY
0045 78FF             82            MOV     R0,#255
0047                  83    DLY:
0047 79FF             84            MOV     R1,#255                 ; 205 x 255 x 1.43us
0049 D9FE             85            DJNZ    R1,$
004B D8FA             86            DJNZ    R0,DLY
                      87    
004D 22               88            RET
                      89    ;____________________________________________________________________
                      90    
                      91    
                      92    END

VERSION 1.2h ASSEMBLY COMPLETE, 0 ERRORS FOUND
BLK1_832                                                                                                      PAGE 3

BLINK. . . . . . . . . . . . . .  C ADDR  003EH  
DELAY. . . . . . . . . . . . . .  C ADDR  0045H  
DLY. . . . . . . . . . . . . . .  C ADDR  0047H  
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  
PLLCON . . . . . . . . . . . . .  D ADDR  00D7H  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