Programming Forums > Application Development > Assembly

kyazh1 · Jun 29th, 2007, 3:12 PM

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.

(Toggle Plain Text)

;
;


#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

kyazh · Jun 29th, 2007, 3:54 PM

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!

kyazh · Jun 29th, 2007, 4:29 PM

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?

(Toggle Plain Text)

;
;


#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

Jun 29th, 2007, 3:12 PM	#1
kyazh1 Newbie Join Date: Jun 2007 Posts: 1 Rep Power: 0	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. (Toggle Plain Text) ; ; #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 ; ; #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

Jun 29th, 2007, 4:29 PM	#3
kyazh Newbie Join Date: Apr 2007 Posts: 3 Rep Power: 0	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? (Toggle Plain Text) ; ; #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 ; ; #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 Last edited by kyazh; Jun 29th, 2007 at 4:51 PM.

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Jun 29th, 2007, 3:54 PM	#2
kyazh Newbie Join Date: Apr 2007 Posts: 3 Rep Power: 0	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!

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Programming Forums > Application Development > Assembly

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