SOLVED - IOC works on B0 but not B5

[richard]

did i say ioc pin change is a bad way to do keys

try this and compare results

#CONFIG    __config _CONFIG1, _FEXTOSC_OFF & _RSTOSC_HFINT32 & _CLKOUTEN_OFF & _CSWEN_OFF & _FCMEN_ON
    __config _CONFIG2, _MCLRE_ON & _PWRTE_OFF & _LPBOREN_OFF & _BOREN_ON & _BORV_LO & _ZCD_OFF & _PPS1WAY_OFF & _STVREN_ON & _DEBUG_OFF
    __config _CONFIG3, _WDTCPS_WDTCPS_11 & _WDTE_ON & _WDTCWS_WDTCWS_7 & _WDTCCS_LFINTOSC
    __config _CONFIG4, _WRT_OFF & _SCANE_available & _LVP_ON
    __config _CONFIG5, _CP_OFF & _CPD_OFF
#ENDCONFIG


DEFINE OSC 32
define  CCP4_REG     PORTD              ' PWM Pulse out to LCD contrast
DEFINE  CCP4_BIT     2                  '   2N2907 PNP with 1K on base
define  CCP3_REG     PORTD              ' PWM Pulse out to LCD backlight
DEFINE  CCP3_BIT     3                  '   2N2222A NPN with 1K on base
define  CCP5_REG     0                
DEFINE  CCP5_BIT     0                  
ANSELA = 0
ANSELB = 0
ANSELC = 0
ANSELD = 0
ANSELE = 0
WPUC   = % 00100000                          
WPUB   = % 00110000 
TRISA  = % 00001111
TRISB  = % 11111111
TRISC  = % 11111111
TRISD  = % 11110011


IOCBN  = % 00100000  


PushSwitchA      VAR PortC.5      ;sw2
PushSwitchB      VAR Portb.4       ;sw1
PushSwitchC      VAR Portb.5
InterruptLED     VAR Lata.4
anotherLED       VAR Lata.5
polLED           VAR Lata.6
notherLED        VAR Lata.7




ButtonWasPressed VAR WORD[2]
lc var byte
    Pause 500                                       ' Let PIC stabilize
    InterruptLED = 0
    anotherLED   = 0
    HPWM 3,250,1953                 ' Pulse Contrast
    HPWM 4,150,1953                 ' Pulse Backlight    


Mainloop:
    lc=lc+1
    if lc==50 then
         polLED = !polLED 
         lc=0
    endif
    ButtonWasPressed[0] =  (ButtonWasPressed[0]<<1) +  PushSwitcha  
    ButtonWasPressed[1] =  (ButtonWasPressed[1]<<1) +  PushSwitchb 
    if ButtonWasPressed[0] = $f then                    ' Check flag
         anotherLED = !anotherLED
    endif
    if ButtonWasPressed[1] = $f then                    ' Check flag
        notherLED = !notherLED
    endif 
    if IOCBF then
         InterruptLED = !InterruptLED
        IOCBF = 0
    endif
    pause 10
goto mainloop

pps , my way works fine even with no capacitor on the switches