that's because the second-last curly bracket is in the wrong place. the for
loop is ended before you write PWL and PWR to those CCP vars
removing that curly bracket and placing it behind the last one will fix it
Cheers,
Luit
2007/3/20, rhoddy mair <[EMAIL PROTECTED]>:
this is code i have begun to write for what will be a learning robot
controlled by the pic18f452, the code complies and is written to the pic
without major trouble but when i insert it to the robot there is no outputs
as if the pic isnt reading anything, i think i may have a configuration
problem but i cant see anything obviously wrong, does see anything that may
help?
#include <stdio.h>
#include <math.h>
#include "pic16/pic18f452.h"
code char at __CONFIG1H config1h = 0xFF;
code char at __CONFIG2L config2l = 0xFD;
code char at __CONFIG2H config2h = 0x00;
code char at __CONFIG3H config3h = 0xFF;
code char at __CONFIG4L config4l = 0xFB;
code char at __CONFIG5L config5l = 0xFF;
code char at __CONFIG5H config5h = 0xFF;
code char at __CONFIG6L config6l = 0xFF;
code char at __CONFIG6H config6h = 0xFF;
code char at __CONFIG7L config7l = 0xFF;
code char at __CONFIG7H config7h = 0xFF;
void main() {
int PWL=0;
int PWR=0;
PORTA=0x00;
TRISA=0x7F;
PORTB=0x00;
TRISB=0x00;
PORTC=0x00;
TRISC=0x00;
PORTD=0x00;
TRISD=0x00;
PORTE=0x00;
TRISE=0x00;
// KILL WATCHDOG
WDTCON=0x00;
//SET EXT CLOCK
OSCCON=0x00;
// INTERUPT ENABLE
INTCON=0xD4;
//PWM SETUP
PR2=0xFA;
CCPR1L=PWL;
CCPR2L=PWR;
INTCONbits.T0IE=0;
T2CONbits.T2CKPS1=1;
T2CONbits.TMR2ON=1;
CCP1CONbits.CCP1M2=1;
CCP1CONbits.CCP1M3=1;
CCP1CONbits.DCCP1Y=0;
CCP1CONbits.DCCP1X=0 ;
CCP2CONbits.CCP2M2=1;
CCP2CONbits.CCP2M3=1;
CCP2CONbits.DCCP2Y=0;
CCP2CONbits.DCCP2X=0;
// MAIN PROGRAM
for(;;) {
PWL=0x7D;
PWR=0x7D;
if (PORTAbits.RA0==0)
{T0CON=0x87;
while( INTCONbits.T0IF==0) { PORTCbits.RC2=1; PORTCbits.RC3=1;
PWR=0xA3; PWL=0x43;}
T0CON=0x00; INTCONbits.T0IF==0;}
if (PORTAbits.RA1==0)
{T0CON=0x87;
while(INTCONbits.T0IF==0) {PORTCbits.RC2=1 ; PORTCbits.RC3=1;
PWR=0x43; PWL=0xA3;}
T0CON=0x00; INTCONbits.T0IF==0;}
if (PORTAbits.RA2==0)
{T0CON=0x87;
while(INTCONbits.T0IF==0) {PORTCbits.RC2=0; PORTCbits.RC3=0;
PWR=0x43; PWL=0xA3;}
T0CON=0x00; INTCONbits.T0IF==0;}
}
CCPR1L=PWL;
CCPR2L=PWR;
}
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