Line follower program - Electronic Circuits Projects Diagrams Free

raitl · 19th August 2005, 09:42 PM

Having problems with creating a LF program for my bot. I got an example from the net (Linbot) and tried to modify it to work for me. But I'm using 3 sensors instead of 4 so I'm guessing there's something about SENSOR_REG that I have missed or overlooked. Probably wrong bits or something... Any ideas?

Code:


CLRF SENSOR_REG       
MOVF L_AD_REG,W
SUBWF VR_AD_REG,W
BTFSC STATUS,C
BSF SENSOR_REG,0       

MOVF C_AD_REG,W
SUBWF VR_AD_REG,W
BTFSC STATUS,C
BSF SENSOR_REG,1

MOVF R_AD_REG,W 
SUBWF VR_AD_REG,W
BTFSC STATUS,C
BSF SENSOR_REG,2



MOVLW B'00000111'  
ANDWF SENSOR_REG,W  
ADDWF PCL   
GOTO NO_LINE   
GOTO LEFT_LINE  
GOTO CENTER_LINE  
GOTO LEFT_CENTER_LINE 
GOTO RIGHT_LINE  
GOTO NUL_LINE   
GOTO RIGHT_CENTER_LINE 
GOTO CENTER_LINE

danielsmusic · 23rd August 2005, 01:16 AM

does the program compile?

raitl · 23rd August 2005, 09:24 PM

compiles fine and even works when covering left sensor.

And would like to post another question without making a new topic... how do I change first 4 or last 4 bits of a port? Controlling two stepper motors with PORTB and would like to give the steppers different speeds via changing the pause between steps. That means I need to change one motor status without touching the other... can't figure this out...

Exo · 24th August 2005, 03:07 PM

http://www.electro-tech-online.com/v...ic.php?t=3573&

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19th August 2005, 09:42 PM	#1
raitl	Line follower program Having problems with creating a LF program for my bot. I got an example from the net (Linbot) and tried to modify it to work for me. But I'm using 3 sensors instead of 4 so I'm guessing there's something about SENSOR_REG that I have missed or overlooked. Probably wrong bits or something... Any ideas? Code: CLRF SENSOR_REG MOVF L_AD_REG,W SUBWF VR_AD_REG,W BTFSC STATUS,C BSF SENSOR_REG,0 MOVF C_AD_REG,W SUBWF VR_AD_REG,W BTFSC STATUS,C BSF SENSOR_REG,1 MOVF R_AD_REG,W SUBWF VR_AD_REG,W BTFSC STATUS,C BSF SENSOR_REG,2 MOVLW B'00000111' ANDWF SENSOR_REG,W ADDWF PCL GOTO NO_LINE GOTO LEFT_LINE GOTO CENTER_LINE GOTO LEFT_CENTER_LINE GOTO RIGHT_LINE GOTO NUL_LINE GOTO RIGHT_CENTER_LINE GOTO CENTER_LINE __________________ Here...let me improve it for you! Puff of smoke ....oops...

23rd August 2005, 01:16 AM	#2
danielsmusic	does the program compile? __________________ when you post that reply, im just kidding.

23rd August 2005, 09:24 PM	#3
raitl	compiles fine and even works when covering left sensor. And would like to post another question without making a new topic... how do I change first 4 or last 4 bits of a port? Controlling two stepper motors with PORTB and would like to give the steppers different speeds via changing the pause between steps. That means I need to change one motor status without touching the other... can't figure this out... __________________ Here...let me improve it for you! Puff of smoke ....oops...

24th August 2005, 03:07 PM	#4
Exo	http://www.electro-tech-online.com/v...ic.php?t=3573&