Post by thread:ISR mind of its own

The code i wrote below was taken out of another program i was working on but hav ing trouble with the delay routine. When i simulate it with MPLAB by stepping t hrough line for line i notice that in the countdown loop for the delay when the variable INNER = 0, it should execute the line "bcf PORTA, 0"..instead it jumps to address 0X004. The program is written as i simulated it i also tried setting the Option register to 0 as well as intcon, still jumps to address h004. Any i deas? maybe an error in my coding that im overlooking. list P=16C84 include "p16c84.inc" RADIX DEC INNER equ 11 OUTER equ 12 movlw 0 movwf INTCON movlw 0 tris PORTA clrf PORTA bsf PORTA, 0 movlw 5 Delay movwf OUTER ; loop (w) times outerl call delayms ; at 1ms each decfsz OUTER,f goto outerl return delayms movlw 0xC7 ; Set the inner movwf INNER ; count innerl nop ; 5 cycles loop nop ; until done decfsz INNER,f goto innerl bcf PORTA, 1 END MiKe Send someone a cool Dynamitemail flashcard greeting!! And get rewarded. GO AHEAD! http://cards.dynamitemail.com/index.php3?rid=fc-41

On Mon, 1 Nov 1999 23:48:29 -0500 Mike M <spam_OUTelektrikmanTakeThisOuTDYNAMITEMAIL.COM> writes: > > list P=16C84 > include "p16c84.inc" > RADIX DEC > > INNER equ 11 Location 11 (decimal) on a 16C84 is the INTCON register. Trying to use it like RAM will cause a problem. The general-purpose RAM starts at 12 (decimal) or 0x0C. ___________________________________________________________________ Get the Internet just the way you want it. Free software, free e-mail, and free Internet access for a month! Try Juno Web: dl.http://www.juno.com/dynoget/tagj.