Need some help with my program of pic18f452

[huzeeigat]

Hey friends i have written a program in c for pic18f452..i have taken help from Muhammad Ali mazidis book of pic18f...
In my program when i give an interrupt on pin INT0.. a delay of 15sec starts..after this i want pin RD1 to go high..so that my relay works on the other end..

 

[huzeeigat]

I am uploading the c file and the proteus simulation file..have a look...

 

[Sumihere]

Hey friends i have written a program in c for pic18f452..i have taken help from Muhammad Ali mazidis book of pic18f...
In my program when i give an interrupt on pin INT0.. a delay of 15sec starts..after this i want pin RD1 to go high..so that my relay works on the other end..

Just send a high to Port D , RD1 Pin whenever the interrupt occurs. The high at the output pin will switch the relay.
U can control the duration of switching by giving appropriate delay.

 

[huzeeigat]

Hey i hav done that in my program but i dont knw wats the error that is y attached the file if anyone can help..

 

[Sumihere]

Hey i hav done that in my program but i dont knw wats the error that is y attached the file if anyone can help..

Hi..I have attached a code in ASM...

---------- Post added at 12:23 ---------- Previous post was at 12:22 ----------

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Code ASM - [expand]
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;*************************************************************************************************
;                                                                                                                                                                                               *
;*  Source code TO compliment the status of BUZZER on every EXTERNAL INTERRUPT   *
;   (PRESS THE EXTERNAL INTERRUPT SWITCH )
;*                                                                                                                                                                                              *
;*************************************************************************************************
        
 
        INCLUDE"P18F4520.INC"   ; include PIC18F4580 definitions
        ORG 0000H                       ; reset vector location
        CLRF PCLATH                     ; clearing program counter higher bits
        GOTO START                      ; jump to start up location ie, 30H
        ORG 0030H 
        
START                                   ; start of program
        MOVLW 0X0F
        MOVWF ADCON1
        BSF TRISB,0                     ; make RB0 (interrupt pin) as input
        BCF TRISE,0                     ; make RE0 as output for buzzer input
        BSF INTCON,GIE          ; global interrupt enable
        BSF INTCON,PEIE
        BSF INTCON,INT0IE       ; external interrupt enable
        BSF INTCON2,RBPU        ; external interrupt enable
        BCF INTCON2,INTEDG0     ; external interrupt enable     
        BCF PORTE,0
        GOTO $                          ; wait for interrupt
        
        ORG 0008H                       ; interrupt service routine, isr
        BCF INTCON,INT0IF       ; clear interrupt flag
        
        ;check if buzzer connected to RE0       is ON and skip to OFF
    BTFSS 20H,1         
        GOTO ON                         ; if not ON buzzer
        GOTO OFF                        ; if yes OFF buzzer
ON:     
        BSF PORTE,0
        BSF 20H,1
        RETFIE                          ; return from isr
OFF:
        BCF PORTE,0
        BCF 20H,1
        RETFIE                          ; return from isr
        
        END                                     ; end of program

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[huzeeigat]

I have changed my program that i uploaded before..m uploading it again nd the simulation file..please require urgent help..

 

[huzeeigat]

in the above upload i have a delay of 1/2 second..i.e after 1/2 second of giving the interrupt..the led at point rd1 should glow...