led1h.lst

代码保护功能处于持续发展中。Microchip 承诺将不断改进产品的代码保护功能。任何试图破坏Microchip 代码保护功能的行为均可视 为违反了《数字器件千年版权法案（Digital Mille

MPASM 03.70.01 Released                             LED1H.ASM   3-28-2006  22:18:58         PAGE  1


LOC  OBJECT CODE     LINE SOURCE TEXT
  VALUE

                      00001 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
                      00002 ;
                      00003 ;       Source File:    LED1H.ASM               
                      00004 ;       Author:         MPB              
                      00005 ;       Date:           2-12-05      
                      00006 ;
                      00007 ;       Output binary count incremented
                      00008 ;       and reset with push buttons. 
                      00009 ;       Uses hardware timer to debounce input switch
                      00010 ;
                      00011 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 
                      00012 
                      00013         PROCESSOR 16F877        ; Define MCU type
2007   3733           00014         __CONFIG 0x3733         ; Set config fuses
                      00015 
                      00016 ; Register Label Equates....................................
                      00017 
  00000006            00018 PORTB   EQU     06      ; Port B Data Register        
  00000008            00019 PORTD   EQU     08      ; Port D Data Register  
  00000088            00020 TRISD   EQU     88      ; Port D Direction Register
                      00021 
  00000001            00022 TMR0    EQU     01      ; Hardware Timer Register
  0000000B            00023 INTCON  EQU     0B      ; Interrupt Control Register
  00000081            00024 OPTREG  EQU     81      ; Option Register
                      00025 
                      00026 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
                      00027 
0000                  00028         ORG     000             ; Start of program memory
0000   0000           00029         NOP                     ; For ICD mode
0001   2806           00030         GOTO    init            ; Jump to main program
                      00031 
                      00032 ; Interrupt Service Routine ................................
                      00033 
0004                  00034         ORG     004
0004   110B           00035         BCF     INTCON,2        ; Reset TMR0 interrupt flag
0005   0009           00036         RETFIE                  ; Return from interrupt
                      00037 
                      00038 ; Initialise Port D (Port B defaults to inputs).............
                      00039         
0006   0000           00040 init    NOP                     ; BANKSEL cannot be labelled
0007   1683 1303      00041         BANKSEL TRISD           ; Select bank 1
0009   3000           00042         MOVLW   b'00000000'     ; Port B Direction Code
Message[302]: Register in operand not in bank 0.  Ensure that bank bits are correct.
000A   0088           00043         MOVWF   TRISD           ; Load the DDR code into F86
                      00044 
                      00045 ; Initialise Timer0 ........................................
                      00046 
000B   30D8           00047         MOVLW   b'11011000'     ; TMR0 initialisation code
Message[302]: Register in operand not in bank 0.  Ensure that bank bits are correct.
000C   0081           00048         MOVWF   OPTREG          ; Int clock, no prescale        
000D   1283 1303      00049         BANKSEL PORTD           ; Select bank 0
000F   30A0           00050         MOVLW   b'10100000'     ; INTCON init. code
0010   008B           00051         MOVWF   INTCON          ; Enable TMR0 interrupt
MPASM 03.70.01 Released                             LED1H.ASM   3-28-2006  22:18:58         PAGE  2


LOC  OBJECT CODE     LINE SOURCE TEXT
  VALUE

                      00052 
                      00053 ; Start main loop ...........................................
                      00054 
0011   0188           00055 reset   CLRF    PORTD           ; Clear Port B Data 
                      00056 
0012   1C86           00057 start   BTFSS   PORTB,1         ; Test reset button
0013   2811           00058         GOTO    reset           ; and reset Port B if pressed
0014   1906           00059         BTFSC   PORTB,2         ; Test step button
0015   2812           00060         GOTO    start           ; and repeat if not pressed
                      00061 
0016   0181           00062         CLRF    TMR0            ; Reset timer
0017   1D0B           00063 wait    BTFSS   INTCON,2        ; Check for time out
0018   2817           00064         GOTO    wait            ; Wait if not
0019   1D06           00065 stepin  BTFSS   PORTB,2         ; Check step button
001A   2819           00066         GOTO    stepin          ; and wait until released
Message[305]: Using default destination of 1 (file).
001B   0A88           00067         INCF    PORTD           ; Increment output at Port B 
001C   2812           00068         GOTO    start           ; Repeat main loop always
                      00069 
                      00070         END                     ; Terminate source code......
MPASM 03.70.01 Released                             LED1H.ASM   3-28-2006  22:18:58         PAGE  3


SYMBOL TABLE
  LABEL                             VALUE 

INTCON                            0000000B
OPTREG                            00000081
PORTB                             00000006
PORTD                             00000008
TMR0                              00000001
TRISD                             00000088
__16F877                          00000001
init                              00000006
reset                             00000011
start                             00000012
stepin                            00000019
wait                              00000017


MEMORY USAGE MAP ('X' = Used,  '-' = Unused)

0000 : XX--XXXXXXXXXXXX XXXXXXXXXXXXX--- ---------------- ----------------
2000 : -------X-------- ---------------- ---------------- ----------------

All other memory blocks unused.

Program Memory Words Used:    27
Program Memory Words Free:  8165


Errors   :     0
Warnings :     0 reported,     0 suppressed
Messages :     3 reported,     0 suppressed

Error[173]  : source file path exceeds 62 characters (C:\A PIC INTERFACING BOOK PROJECT\PIC INTERFACING BOOK APPLICATIONS MARCH 06\A
                            PPLICATIONS\CHAP04\LED1H\LED1H.ASM)