I am trying to write a timer interrupt for a pic16f887. I have checked on several websites and most of them recommend writing the interrupt subroutine as void interrupt Name (void) however my program says that by doing so I am conflicting my interrupt name with the Isr. main.c:42: error: (1375) multiple interrupt functions (_led and _isr) defined for device with only one interrupt vector This is a sample of my code.
/******************************************************************************/ /* Files to Include */ /******************************************************************************/ #define _XTAL_FREQ 4000000 #include #include /* For uint8_t definition */ #include /* For true/false definition */ #include #include "system.h" /* System funct/params, like osc/peripheral config */ #include "user.h" /* User funct/params, such as InitApp */ #include "pic16f887.h" /******************************************************************************/ /* User Global Variable Declaration */ /******************************************************************************/ /* i.e. uint8_t ; */ /******************************************************************************/ /* Main Program */ /******************************************************************************/ // CONFIG1 #pragma config FOSC = INTRC_CLKOUT// Oscillator Selection bits (INTOSC oscillator: CLKOUT function on RA6/OSC2/CLKOUT pin, I/O function on RA7/OSC1/CLKIN) #pragma config WDTE = OFF // Watchdog Timer Enable bit (WDT disabled and can be enabled by SWDTEN bit of the WDTCON register) #pragma config PWRTE = OFF // Power-up Timer Enable bit (PWRT disabled) #pragma config MCLRE = OFF // RE3/MCLR pin function select bit (RE3/MCLR pin function is digital input, MCLR internally tied to VDD) #pragma config CP = OFF // Code Protection bit (Program memory code protection is disabled) #pragma config CPD = OFF // Data Code Protection bit (Data memory code protection is disabled) #pragma config BOREN = ON // Brown Out Reset Selection bits (BOR enabled) #pragma config IESO = OFF // Internal External Switchover bit (Internal/External Switchover mode is disabled) #pragma config FCMEN = OFF // Fail-Safe Clock Monitor Enabled bit (Fail-Safe Clock Monitor is disabled) #pragma config LVP = OFF // Low Voltage Programming Enable bit (RB3 pin has digital I/O, HV on MCLR must be used for programming) // CONFIG2 #pragma config BOR4V = BOR40V // Brown-out Reset Selection bit (Brown-out Reset set to 4.0V) #pragma config WRT = OFF // Flash Program Memory Self Write Enable bits (Write protection off) void interrupt led(void) < PORTA = 0X00;`enter code here` >void main(void) < OSCCON = 0b01110000; TRISA = 0X00; ANSEL = 0X00; ANSELH = 0X00; while(1) < PORTA = 0X03; __delay_ms(1000); PORTA = 0X01; __delay_ms(1000); >>