Hi
Your code looks fine. I usually use void low_isr(void) interrupt 0. Why
did you use 0x08?
Are you sure that the cpu is running? or how do you know that its not
getting into the isr?
Regards,
milan schrieb:
> Hi.
> Sorry, but I don't know how to force this little bit of code to jump
> into isr.
> Can You help?
>
> #include <pic18f1220.h>
> #include <delay.h>
>
> /*
> ----------------------------------------------------------------------- */
> code char at __CONFIG1H CONFIG1H = _OSC_INT_Port_on_RA6_Port_on_RA7_1H &
> _FCMEN_OFF_1H & _IESO_OFF_1H;
> code char at __CONFIG2L CONFIG2L = _PUT_OFF_2L & _BODEN_OFF_2L &
> _BODENV_2_0V_2L;
> code char at __CONFIG2H CONFIG2H = _WDT_DISABLED_CONTROLLED_2H &
> _WDTPS_1_32768_2H;
> code char at __CONFIG3H CONFIG3H = _MCLRE_MCLR_enabled_RA5_input_dis_3H;
> code char at __CONFIG4L CONFIG4L = _STVR_OFF_4L & _LVP_OFF_4L &
> _BACKBUG_OFF_4L;
> code char at __CONFIG5L CONFIG5L = _CP_0_OFF_5L & _CP_1_OFF_5L;
> code char at __CONFIG5H CONFIG5H = _CPB_OFF_5H & _CPD_OFF_5H;
> code char at __CONFIG6L CONFIG6L = _WRT_0_OFF_6L & _WRT_1_OFF_6L;
> code char at __CONFIG6H CONFIG6H = _WRTC_OFF_6H & _WRTB_OFF_6H &
> _WRTD_OFF_6H;
> code char at __CONFIG7L CONFIG7L = _EBTR_0_OFF_7L & _EBTR_1_OFF_7L;
> code char at __CONFIG7H CONFIG7H = _EBTRB_OFF_7H;
>
> unsigned long tmp0;
>
> static void isr(void) interrupt 0x8 { /* no priority */
> T0CONbits.TMR0ON = 0;
> PORTBbits.RB5 = 0;
> INTCONbits.T0IF = 0;
> TMR0L = 0;
> delay100ktcy(5);
> INTCONbits.T0IE = 1;
> T0CONbits.TMR0ON = 1;
> }
>
> void main() {
> TRISB = 0x0B; //00001011
> LATB = 0;
> ADCON1 = 0xFF; //all pins as a digital ports
> OSCCON = 0x6F;
> RCONbits.IPEN = 0; //priority levels disabled
> T0CONbits.T08BIT = 1; //TMR0 8 bit
> T0CONbits.PSA = 1; //TMR0 no prescaler
> T0CONbits.T0CS = 0; //TMR0 internal instruction clock cycle
> //INTCONbits.T0IF = 0; //clear TMR0 int flag
> //INTCONbits.GIE = 1; //global int enabled
> //INTCONbits.PEIE = 1; //peripheral int enabled
> //INTCONbits.T0IE = 1; //TMR0 int enabled
> INTCON = 0xE0; //the same as above
> T0CONbits.TMR0ON = 1; // TMR0
>
>
> while (1){
> PORTBbits.RB5 = 1;
> delay100ktcy(5);
> }
> }
>
> ------------------------------------------------------------------------------
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iPhoneDevCamp asthey present alongside digital heavyweights like Barbarian
Group, R/GA, & Big Spaceship. http://www.creativitycat.com
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