DT_INT + 16F72 - what am I missing?
Hi, I am trying to build a timer based application and using PIC16F72. My problem is that my PIC is not responding to the Serin data. I am using DT_INT to achieve the timing function.
Please help me understand if I am missing something.
My code goes like this:
Code:
;
;-----------------PIC16F72---------------------------
Include "modedefs.bas"
INCLUDE "DT_INTS-14.bas" ; Base Interrupt System
INCLUDE "ReEnterPBP.bas" ; Include if using PBP interrupts
DEFINE OSC 4 ' OSCCON defaults to 4MHz on reset
;-------------CONFIGURATION FUSES SET HERE-------------------------
@ __Config _XT_OSC & _WDT_ON & _PWRTE_ON & _BODEN_ON & _CP_ALL
;---------VARIABLES DECLARED HERE----------------
PAUSE 100
Rx Var PortB.7
buz var PortA.2
green var PortA.1
red var PortA.0
relay var PortC.2
delay VAR word
delayset var word
get0 var byte
o var bit
s var bit
get1 var byte
;------------REGISTERS SET HERE------------------------
ADCON1=7
PORTA=0
PORTB=0
PORTC=0
TRISA = %000000
TRISC = %00000000
TRISB = %10000000
OPTION_REG = %10000000 ' RAPU = off
PORTA=0
PORTC=0
PORTB=0
s=0
high red : pause 500 : high relay : pause 500 : high green : pause 500 : high buz : pause 1000
low red : pause 500 :low relay : pause 500 : low green : pause 500 : low buz : pause 1000
; the above works fine
;---------INTERRUPTS DECLARED HERE------------------------------
ASM
INT_LIST macro ; IntSource, Label, Type, ResetFlag?
INT_Handler TMR1_INT, _delaystop, PBP, yes
endm
INT_CREATE ; Creates the interrupt processor
ENDASM
T1CON=$31
;-------------INTERRUPTS ENABLED HERE-----------------------------
@ INT_ENABLE TMR1_INT ; Enable external (INT) interrupts
; the int works fine as I have toggled an led in ISR and it does toggle at regular intervals
;----------------MAIN PROGRAM STARTS HERE------------------------
main:
game:
Serin PortB.7, N2400,["D33",get0]
high buz : pause 50 : low buz : pause 500
Select case get0
; all select case statements go here which switch on the relay part & leds as well
End Select
goto main
;------------------[INTERRUPTS - interrupt handler]---------------------------------------------------
delaystop:
; All code to switch off the relay goes here after certain time has elapsed
@ INT_RETURN
I dont know what I am missing but my PIC is not respnding to the serial data. The buzzer should beep once, but it doesn't. Am I missing something?
I can upload the missing code if needed.
