[Sdcc-user] TMR0

[milan <mi...@ma...>]

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);
	}
}