PIC16F84A temel assembly kod şablonu.
Gönderen: Seçkin Burak Cengiz · 1 Yorum
PIC16F84A için hazırlanmış kod şeması aşağıdaki gibidir. Bu şema sayesinde kendi kodlarınızı daha rahat oluşturabilirsiniz.
;****************************************************
; This file is a basic code template for assembly code generation *
; on the PICmicro PIC16F84A. This file contains the basic code *
; building blocks to build upon. *
; *
; If interrupts are not used all code presented between the ORG *
; 0x004 directive and the label main can be removed. In addition *
; the variable assignments for 'w_temp' and 'status_temp' can *
; be removed. *
; *
; Refer to the MPASM User's Guide for additional information on *
; features of the assembler (Document DS33014). *
; *
; Refer to the respective PICmicro data sheet for additional *
; information on the instruction set. *
; *
; Template file assembled with MPLAB V4.00.00 and MPASM V2.20.12. *
; *
;*******************************************************
; *
; Filename: xxx.asm *
; Date: *
; File Version: *
; *
; Author: *
; Company: *
; *
; *
;****************************************************
; *
; Files required: *
; *
; *
; *
;****************************************************
; *
; Notes: *
; *
; *
; *
; *
;***************************************************
list p=16F84A ; list directive to define processor
#include <p16F84A.inc> ; processor specific variable definitions
__CONFIG _CP_OFF & _WDT_ON & _PWRTE_ON & _RC_OSC
; '__CONFIG' directive is used to embed configuration data within .asm file.
; The lables following the directive are located in the respective .inc file.
; See respective data sheet for additional information on configuration word.
;***** VARIABLE DEFINITIONS
w_temp EQU 0x0C ; variable used for context saving
status_temp EQU 0x0D ; variable used for context saving
;*****************************************************
ORG 0x000 ; processor reset vector
goto main ; go to beginning of program
ORG 0x004 ; interrupt vector location
movwf w_temp ; save off current W register contents
movf STATUS,w ; move status register into W register
movwf status_temp ; save off contents of STATUS register
; isr code can go here or be located as a call subroutine elsewhere
movf status_temp,w ; retrieve copy of STATUS register
movwf STATUS ; restore pre-isr STATUS register contents
swapf w_temp,f
swapf w_temp,w ; restore pre-isr W register contents
retfie ; return from interrupt
main
; remaining code goes here
END ; directive 'end of program'Related posts:
comment on peut exécuté un programme du pic et le voir résultat dans proteus