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tienchuan
Joined: 25 Aug 2009
Posts: 175
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| Disable Chip When Using Timer0 Interrupt in Pic18F97J60 |
 Posted: Wed Apr 25, 2012 10:55 am |
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Hi all
I have a problem: when I make declaration to use timer0 interrupt, my program not run, and when I test delete declaration of timer0, my program run correctly.
I'm using pic 18F97J60
And PCWH complier 4.078
Config fuses :
| Code: |
#fuses NOWDT,HS,NOPROTECT,NODEBUG
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Setup timer0:
| Code: |
setup_timer_0( RTCC_INTERNAL);
set_timer0(0);
enable_interrupts(int_timer0);
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Please show me way to solve this problem: )
Thanks and regards 
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bkamen
Joined: 07 Jan 2004
Posts: 1611
Location: Central Illinois, USA
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| Posted: Wed Apr 25, 2012 2:14 pm |
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You really need to show us a complete example.
I use the 97j60's fairly regularly and don't have the issue you're talking about.
Without seeing the rest, it's hard for me (or any of us) to help.
Post a short but compilable example please.
-Ben
p.s. You're running this on real hardware, right?
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Dazed and confused? I don't think so. Just "plain lost" will do. :D |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19365
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| Posted: Wed Apr 25, 2012 2:48 pm |
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Obvious thing that would hang the chip, is if you enable the interrupt, have already got the global level enabled, and haven't got a handler present. Instant crash....
Best Wishes |
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tienchuan
Joined: 25 Aug 2009
Posts: 175
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| Posted: Thu Apr 26, 2012 3:34 am |
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Thanks Ttelmah and bkamen
My program only declares Timer0 interrupt and don't do anything in timer0 ISR, but when I declare Timer0, my program is not run ?
My program :
| Code: |
void main(void)
{
TRISA=0;
TRISB=0;
TRISJ=0;
TRISE=0;
TRISD=0;
TRISH=0;
TRISG=0X04;//rs232
TRISC=0X80;//rs232
PORTJ=0;
PORTE=0;
PORTD=0;
portb=0;
setup_timer_0( RTCC_INTERNAL);
set_timer0(0);
//enable_interrupts(int_timer0);
enable_interrupts(int_rda2);
enable_interrupts(int_rda);
enable_interrupts(global);
lcd_init();
lcd_putc("\f");
lcd_gotoxy(1,1);
printf(lcd_putc,"DO AN TOT NGHIEP");
lcd_gotoxy(3,2);
printf(lcd_putc,"DTVT-BKDN");
delay_ms(3000);
LCD_MoveLeft(20);
lcd_putc("\f");
lcd_gotoxy(3,1);
printf(lcd_putc,"GPS Tracking");
lcd_gotoxy(3,2);
printf(lcd_putc,"H&C Solutions");
delay_ms(2000);
LCD_MoveRight(20);
lcd_putc("\f");
fputs("AT+CMGD=1",ID1);
fputc(13,ID1);
delay_ms(500);
//fputs("AT+CDNSORIP=1\n",ID1);// da cau hinh tren sim AT+CIPSCONT// luu cau hinh nay!
//delay_ms(1000);
while(1)
{
portb=0;
delay_ms(500);
portb=0xff;
delay_ms(1000);
}
}
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and here is my circuit:
 [/img]
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tienchuan
Joined: 25 Aug 2009
Posts: 175
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| Posted: Mon Apr 30, 2012 8:59 am |
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pls show me way to solve that problem ?
thnks
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