Programming Forums - PIC10F206, TOCKI not shutting off so I can use GP2... help?

Programming Forums (http://www.programmingforums.org/forumindex.php)

- Assembly (http://www.programmingforums.org/forum20.html)

- - PIC10F206, TOCKI not shutting off so I can use GP2... help? (http://www.programmingforums.org/showthread.php?t=13446)

PIC10F206, TOCKI not shutting off so I can use GP2... help?

Hello folks, I have a PIC10F206 Im working with here. It is connected to 3 LED's on GP0 GP1 GP2, and a push button switch that shorts to ground on GP3. GP0 does nothing, GP1 and GP2 are supposed to start blinking when the button is pushed. I'm having some trouble with the setup. It appears that GP2 is using the TOCKI option somehow, although I believe I have that disabled by setting bit 5 in the option to 0. When I push the button, GP1 starts blinking too, So I know that the program is functioning, Im just having a hard time with setup. How do I shut of TOCKI and make GP2 an output? Thanks in advance.

;

;





#include P10F206.INC        ; standard Microchip register names definitions

#include header.inc          ; standard header stuff including OSCCAL save and GOTO MAIN



        __config (_MCLRE_OFF & _CP_OFF & _WDT_OFF & _IntRC_OSC )











dly0.5msec                        ; 0.5msec delay

        MOVLW        D'100'

        MOVWF        DDY0

dl0.5_0        

        DECFSZ        DDY1, 1

        GOTO        dl100_0

        DECFSZ        DDY0, 1

        GOTO        dl100_1

        RETLW        0









dly100msec                        ; 100msec delay accomplished by just idling in a loop

        MOVLW        D'130'

        MOVWF        DDY0                ; load the outer loop delay

dl100_1

        MOVLW        D'255'        

        MOVWF        DDY1                ; load the inner loop delay

dl100_0        

        DECFSZ        DDY1, 1

        GOTO        dl100_0

        DECFSZ        DDY0, 1

        GOTO        dl100_1

        RETLW        0

        

MAIN                                ; here we start the main program with some setup stuff

        MOVLW        B'00001111'

        OPTION                        ; set up WDT with a long prescale; wakeup on pin change

        MOVLW        B'11110111'

        MOVWF        CMCON0                ; set up comparator controls so they don't get in the wayo they don't get in the way



        MOVLW        B'00001001'        ; Tris controls

        TRIS        GPIO



;***************************************************************************

; here we really get started on the program







buttonstate

        CALL        dly100msec        ; wait for button-bounce

        BTFSS        GPIO, 3                ; check if button is high, if so skip the next step



step_loop        

        BSF        GPIO, 1                ; Set GPIO,1 high

        BSF        GPIO, 2                ; Set GPIO,2 high

        CALL        dly0.5msec        ; wait for 0.5msec

        BCF        GPIO, 1                ; Set GPIO,1 low

        BCF        GPIO, 2                ; Set GPIO,2 low





        GOTO        MAIN



        END

well now that I've fiddled with it a bit more, it seem to be the 'buttonstate' or more specifically the BTFSS command that not working like it should be ... any suggestions?

Whats supposed to happen is when I push the button that is attached to GP3, GP1 and GP2 should start pulsing. It will get a bit more complicated than that, but I think its better to do this 1 step at a time. Thanks again!

Heres the updated code. When I push the button on GP3, the LEDs on GP1 & GP2 blink. Now, I need to set up some type of count down, so that when I push the button and release it, the LED's will continue blinking for anouther 5 seconds. I can't figure out how to tell the PIC10F206 how to do two things at once?

;

;





#include P10F206.INC        ; standard Microchip register names definitions

#include header.inc          ; standard header stuff including OSCCAL save and GOTO MAIN



        __config (_MCLRE_OFF & _CP_OFF & _WDT_OFF & _IntRC_OSC )











dly0.5msec                        ; 0.5msec delay

        MOVLW        D'50'

        MOVWF        DDY0

dl0.5_0        

        DECFSZ        DDY1, 1

        GOTO        dl100_0

        DECFSZ        DDY0, 1

        GOTO        dl100_1

        RETLW        0









dly100msec                        ; 100msec delay accomplished by just idling in a loop

        MOVLW        D'130'

        MOVWF        DDY0                ; load the outer loop delay

dl100_1

        MOVLW        D'255'        

        MOVWF        DDY1                ; load the inner loop delay

dl100_0        

        DECFSZ        DDY1, 1

        GOTO        dl100_0

        DECFSZ        DDY0, 1

        GOTO        dl100_1

        RETLW        0

        



step_loop        

        BSF        GPIO, 1                ; Set GPIO,1 high

        BSF        GPIO, 2                ; Set GPIO,2 high

        GOTO        dly0.5msec        ; wait 

        BCF        GPIO, 1                ; Set GPIO,1 low

        BCF        GPIO, 2                ; Set GPIO,2 low

        GOTO        dly0.5msec        ; wait 











MAIN                                ; here we start the main program with some setup stuff



        MOVLW        B'00011111'

        OPTION                        ; set up WDT with a long prescale; wakeup on pin change

        MOVLW        B'11110111'

        MOVWF        CMCON0                ; set up comparator controls so they don't get in the way



        MOVLW        B'00001001'        ; set up to load tristate controls

        TRIS        GPIO                ; load tristate controls

;***************************************************************************

; here we really get started on the program





buttonstate

        BCF        GPIO, 1

        BCF        GPIO, 2

        CALL        dly100msec        ; wait for button-bounce

        BTFSS        GPIO, 3                ; check if button is high, if so skip the next step

        CALL        step_loop

        GOTO        buttonstate





        END