Hello there. I have written a simple code but it seems not to work properly. I am not sure what I am missing here and any help will be appreciated.
The code is as follows:
When I comment the INTCON, my led blinks fine @ 500mS. When I uncomment it, the timings go out.
I want to run my PIC16F688 at internal 8MHz and not sure if I am missing any configuration register.
The code is as follows:
Code:
#CONFIG
ifdef PM_USED
device pic16F688, intrc_osc_noclkout, wdt_on, mclr_on, protect_off
else
__config _INTRC_OSC_NOCLKOUT & _WDT_OFF & _PWRTE_ON & _MCLRE_OFF & _CP_ON & _CPD_ON & _BOD_ON & _IESO_ON & _FCMEN_ON
endif
#ENDCONFIG
DEFINE OSC 8 ' OSCCON defaults to 8MHz on reset
DEFINE NO_CLRWDT 1
Include "modedefs.bas"
' declare the interrupt handler
define INTHAND _ISR
goto main
ISR:
asm
; my asm code
endasm
main:
PAUSE 50
OSCCON = %01110001 ' Internal Oscillator 8MHz
TRISA = %000100
TRISC = %000010
CMCON0 = 7
ANSEL = 0 ' NO ANALOGS
OPTION_REG = %10000011 ' RAPU = off, PS 1:16 to TMR0
PORTA=0
PORTC=0
' setup iZCD to interrupt on change
' INTCON= %10110000
' | Global interrupts enabled
' | Timer0 interrupt enabled
' | Zero Crossing interrupt enabled
' ---- Flags are cleared
while 1
toggle PortA.4
pause 500
wendI want to run my PIC16F688 at internal 8MHz and not sure if I am missing any configuration register.