Hello everyone!
I'm trying to develop a basic queuing system, using 2 digit 7 segment. Currently I have 3 buttons to trigger a bell and increment the value display. So far the main functionality are working...but at the moment buttons are on PORTA. The problem I'm facing is when buttons are pressed long enough it continues to increment in which I do not want. My solution is to use DT's interrupt library, using external interrupt (on Pic18F4550).
For testing I use the following codes...
Works perfectly for my project...now my question is, I know PORTB has 3 external interrupt. Is there a way I can make the same functionality for 6 buttons? I've read some about interrupt on ANY pins but not really sure how to implement it. Hope anyone can give me an idea/help ..appreciate it very much.
Attachment 6760
Thanks in advance,
tacbanon
I'm trying to develop a basic queuing system, using 2 digit 7 segment. Currently I have 3 buttons to trigger a bell and increment the value display. So far the main functionality are working...but at the moment buttons are on PORTA. The problem I'm facing is when buttons are pressed long enough it continues to increment in which I do not want. My solution is to use DT's interrupt library, using external interrupt (on Pic18F4550).
For testing I use the following codes...
Code:
asm
__CONFIG _CONFIG1L, _PLLDIV_5_1L & _CPUDIV_OSC1_PLL2_1L & _USBDIV_2_1L
__CONFIG _CONFIG1H, _FOSC_HSPLL_HS_1H & _FCMEN_OFF_1H & _IESO_OFF_1H
;__CONFIG _CONFIG2L, _PWRT_ON_2L & _BOR_ON_2L & _BORV_2_2L & _VREGEN_ON_2L
__CONFIG _CONFIG2H, _WDT_OFF_2H
__CONFIG _CONFIG3H, _MCLRE_ON_3H & _LPT1OSC_OFF_3H & _PBADEN_OFF_3H & _CCP2MX_ON_3H
__CONFIG _CONFIG4L, _STVREN_ON_4L & _LVP_OFF_4L & _ICPRT_OFF_4L & _XINST_OFF_4L & _DEBUG_OFF_4L
endasm
Define OSC 20
INCLUDE "DT_INTS-18.bas" ; Base Interrupt System
INCLUDE "ReEnterPBP-18.bas" ; Include if using PBP interrupts
TRISD = %00000000
PORTD = %00000000
Led1 Var POrtD.5
ASM
INT_LIST macro ; IntSource, Label, Type, ResetFlag?
INT_Handler INT0_INT, _ToggleLED1, PBP, yes
INT_Handler INT1_INT, _ToggleLED1, PBP, yes
INT_Handler INT2_INT, _ToggleLED1, PBP, yes
endm
INT_CREATE ; Creates the interrupt processor
ENDASM
@ INT_ENABLE INT0_INT ; enable external (INT) interrupts@ INT_ENABLE INT1_INT ; enable external (INT) interrupts
@ INT_ENABLE INT1_INT
@ INT_ENABLE INT2_INT
Main:
PAUSE 100
GOTO Main
'---[INT - interrupt handler]---------------------------------------------------
ToggleLED1:
TOGGLE LED1
@ INT_RETURNAttachment 6760
Thanks in advance,
tacbanon