EDIT: I hate going to the message board… naturally I am licking my wounds from getting scolded for daring to use cblock…
GPR_VAR UDATA
var_name RES 1
…. took care of this issue… at least that fiasco is over.. and I thought the PWM was going to be the hard part! /EDIT
This code is killing me. I’ve pulled it out of something I’m working on… it has been kicking my ass for two days now.
The LED on PORTC,2 should be pulses for a few hundred nanoseconds and then go off….. right? No.. the decfsz sits in an endless loop it seems. Why? I’ve messed up somewhere here?
errorlevel -230, -302, -303, -313
LIST R=DEC
#include "p16f1509.inc"
__CONFIG _CONFIG1, _FOSC_INTOSC & _WDTE_OFF & _PWRTE_OFF & _CLKOUTEN_OFF
__CONFIG _CONFIG2, _LVP_OFF & _STVREN_ON
cblock
int_delay1
int_delay2
endc
RES_VECT CODE 0x0000 ; processor reset vector
GOTO START ; go to beginning of program
MAIN_PROG CODE ; let linker place main program
INIT:
;RC5 = PWM1
BANKSEL LATA ;Data Latch
CLRF LATA ;
BANKSEL ANSELC ;
CLRF ANSELC ;Digital IO
BANKSEL PORTC ;
BCF PORTC,5 ;Clear PWM1
BANKSEL TRISC ;Set all PORTC to outputs
CLRF TRISC
BANKSEL OSCCON
MOVLW 0x78 ;16MHZ Clock
MOVWF OSCCON
RETURN
START
CALL INIT
BANKSEL int_delay1
MOVLW 0x01
MOVWF int_delay1
BSF PORTC,2
OLOOP
NOP
BANKSEL int_delay1
DECFSZ int_delay1,1
GOTO OLOOP
BCF PORTC,2
NOP
LOOP:
NOP
GOTO LOOP ;loop forever
END
