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;******************************************************************************
; This file is a basic template for assembly code for a PIC18F6620. Copy *
; this file into your project directory and modify or add to it as needed. *
; *
; Refer to the MPASM User's Guide for additional information on the *
; features of the assembler. *
; *
; Refer to the PIC18FXX20 Data Sheet for additional information on the *
; architecture and instruction set. *
; *
;******************************************************************************
; *
; Filename: *
; Date: *
; File Version: *
; *
; Author: *
; Company: *
; *
;******************************************************************************
; *
; Files Required: P18F6620.INC *
; *
;******************************************************************************
LIST P=18F6620 ;directive to define processor
#include <P18F6620.INC> ;processor specific variable definitions
;******************************************************************************
;Configuration bits
;Microchip has changed the format for defining the configuration bits, please
;see the .inc file for futher details on notation. Below are a few examples.
; Oscillator Selection:
CONFIG OSC=HS , OSCS=ON
;******************************************************************************
;Variable definitions
; These variables are only needed if low priority interrupts are used.
; More variables may be needed to store other special function registers used
; in the interrupt routines.
CBLOCK 0x060
WREG_TEMP ;variable used for context saving
STATUS_TEMP ;variable used for context saving
BSR_TEMP ;variable used for context saving
ENDC
CBLOCK 0x000
EXAMPLE ;example of a variable in access RAM
ENDC
;******************************************************************************
;EEPROM data
; Data to be programmed into the Data EEPROM is defined here
ORG 0xf00000
DE "Test Data",0,1,2,3,4,5
;******************************************************************************
;Reset vector
; This code will start executing when a reset occurs.
ORG 0x0000
goto Main ;go to start of main code
;******************************************************************************
;High priority interrupt vector
; This code will start executing when a high priority interrupt occurs or
; when any interrupt occurs if interrupt priorities are not enabled.
ORG 0x0008
;bra HighInt ;go to high priority interrupt routine
;******************************************************************************
;Low priority interrupt vector and routine
; This code will start executing when a low priority interrupt occurs.
; This code can be removed if low priority interrupts are not used.
ORG 0x0018
movff STATUS,STATUS_TEMP ;save STATUS register
movff WREG,WREG_TEMP ;save working register
movff BSR,BSR_TEMP ;save BSR register
; *** low priority interrupt code goes here ***
MOVLW H'8'
BTFSC EXAMPLE,7
XORWF PORTG
MOVLW H'4'
XORWF PORTG
BCF INTCON,2
movff BSR_TEMP,BSR ;restore BSR register
movff WREG_TEMP,WREG ;restore working register
movff STATUS_TEMP,STATUS ;restore STATUS register
retfie
;******************************************************************************
;High priority interrupt routine
; The high priority interrupt code is placed here to avoid conflicting with
; the low priority interrupt vector.
HighInt:
; *** high priority interrupt code goes here ***
retfie FAST
;******************************************************************************
;Start of main program
; The main program code is placed here.
Main:
; *** main code goes here ***
clrf PORTG
clrf TRISG
CLRF LATG
MOVLW H'88'
MOVWF T0CON
MOVLW H'E0'
MOVWF INTCON
bsf PORTG,3
T1:
INCF EXAMPLE
goto T1
;******************************************************************************
;End of program
END
... и провери изводи 5 и 6
