help needed: motor speed control with pic chip and potentiometer

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Rene01

Joined Oct 31, 2012
1
have been doing this small project for a short while. Using 4 LEDs, a potentiometer, PIC16f88 microcontroller. I am having some trouble with setting up the analogue to digital converter to run the motor and light up the LEDs as the motor runs faster
Rich (BB code):
List p=PIC16F88
#INCLUDE <P16F88.INC>

__CONFIG    _CONFIG1, _CP_OFF & _CCP1_RB0 & _DEBUG_OFF & _WRT_PROTECT_OFF & _CPD_OFF & _LVP_OFF & _BODEN_OFF & _MCLR_ON & _PWRTE_OFF & _WDT_OFF & _INTRC_IO
__CONFIG    _CONFIG2, _IESO_OFF & _FCMEN_OFF

;-----------------------------------------------------------------------------
;Start of the inital program

  ORG 0x0000					;

  goto start					;Go to the start loop

start:							;Begin the start loop

    nop							;No operation
	bsf STATUS,RP0				;Go to bank 1 
    movlw b'00000001'			;Set ping 
    movwf TRISA					;
    movlw b'10111111'			;
	movwf TRISB					;

;-----------------------------------------------------------------------------
;Analog to Digital Converter

	clrf ANSEL

	movlw b'00000100'			;Set pin to analog
	movlw ANSEL

	movlw b'00110000' 			;Ref Voltage to external pins
	movwf ADCON1

	movlw .1					;AD format select bits
    movwf ADFM

	movlw b'10000000' 			;Analog Clock
	movwf ADCON0
	bsf ADON,1					;ADC switch on

;-----------------------------------------------------------------------------	
;Motor Speed Control

	bsf 	STATUS,RP0			;Go to bank 1
	movlw 	b'00000000'			;Set the corrct Port
	movwf 	TRISB				;Get to TRISB
;	movlw 	.100				;Set the speed of the motor
	movf 	ADRESH
	movwf 	PR2					;Period Register
    bcf 	STATUS,RP0 			;Go to back 0
    movlw	b'00001100'			;
	movwf	CCP1CON				;
	bsf 	T2CON, TMR2ON		;
	movlw	.100				;Set the speed of the motor
	movwf 	CCPR1L
	
;-----------------------------------------------------------------------------
;End of Program

     goto $						;Endless loop

     end						;End the program
This is the code that i have so far

Any assistance will be greatly appreciated
 

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