emperror123
Member level 5
dear all
currently i am doing on program which is safe box by using PIC16F877a
i got the key pad program which i write it b myself
following are my code
since i got it, but i now confused how to put the coding for LCD display code and servo motor code in my code, since i have cracked my head for many days still remain unsolve
2nd is i wan to have a schematic diagram for safe box which is consist of PIC16f877a, servo motor, keypad and LCD display
a lot of article draw with seperately, and i unable to use which 1 to do it,
thank, and ur help is much appreciated
currently i am doing on program which is safe box by using PIC16F877a
i got the key pad program which i write it b myself
following are my code
Code:
list p = 16f877a
#include p16f877a.inc
__CONFIG _CP_OFF & _WDT_OFF & _XT_OSC & _PWRTE_ON
lcd_RS equ 1
lcd_write equ 0
lcd_op equ PORTD
kpad_pat equ 20
kpad_add equ 21
kpad_op equ 22
kpad_char equ 23
org 00
goto start
org 04
call interrupt
start bsf STATUS, RP0
clrf TRISC
clrf TRISD
movlw B'11110000'
movwf TRISB
bcf OPTION_REG, NOT_RBPU ; enable internal power in PORTB
bcf STATUS, RP0
; kaypad program
clrf PORTB
bcf INTCON, RBIF
bsf INTCON, RBIE
bsf INTCON, GIE
loop goto loop
interrupt
kpad_to_lcd call kpad_rd
call kp_code_conv
bsf PORTC, lcd_RS ;ques
movwf lcd_op ;ques
call lcd_write
rel_test call kpad_rd
movf kpad_pat, 0
andlw 0xfe
sublw 0xfe
btfss STATUS, Z
goto rel_test
bcf INTCON, RBIF
retfie
kpad_rd movf PORTB, W
movwf kpad_pat ;ques
bsf STATUS, RP0
movlw B'00001110'
movwf TRISB
bcf STATUS, RP0
movlw 00
movwf PORTB
movf PORTB, W
andlw B'00001110'
iorwf kpad_pat, 1
bsf STATUS, RP0
movlw B'11110000'
movwf TRISB
bcf STATUS, RP0
clrf PORTB
return
kp_code_conv bcf STATUS, C
rrf kpad_pat, 1
clrf kpad_add
btfsc kpad_pat, 6
goto kp1
goto col_find
kp1 btfsc kpad_pat, 6
goto kp2
movlw B'00000100'
iorwf kpad_add, 1
goto col_find
kp2 btfsc kpad_pat, 4
goto kp3
movlw B'00001000'
iorwf kpad_add, 1
goto col_find
kp3 btfsc kpad_pat, 3
goto kp4
movlw B'00001100'
iorwf kpad_add, 1
goto col_find
kp4 movlw D'16'
goto keypad_op
col_find btfsc kpad_pat, 2
goto cf1
goto keypad_op
cf1 btfsc kpad_pat, 1
goto cf2
movlw B'00000001'
iorwf kpad_add, 1
goto keypad_op
cf2 movlw B'00000010'
iorwf kpad_add, 1
keypad_op movf kpad_add, 0
call kp_table
movwf kpad_char
return
kp_table addwf PCL, 1
retlw '1'
retlw '2'
retlw '3'
retlw 'A'
retlw '4'
retlw '5'
retlw '6'
retlw 'B'
retlw '7'
retlw '8'
retlw '9'
retlw 'C'
retlw '*'
retlw '0'
retlw '#'
retlw 'D'
retlw 'E'
endsince i got it, but i now confused how to put the coding for LCD display code and servo motor code in my code, since i have cracked my head for many days still remain unsolve
2nd is i wan to have a schematic diagram for safe box which is consist of PIC16f877a, servo motor, keypad and LCD display
a lot of article draw with seperately, and i unable to use which 1 to do it,
thank, and ur help is much appreciated