Sheritronics
Newbie level 6
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- Feb 1, 2014
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Code:
org 0x00
include <P16F877A.inc>
test equ 0x20
setup
bsf STATUS,5
movlw 0x01
movwf TRISB
clrf TRISC
bcf STATUS,5
clrf PORTB
clrf PORTC
movlw D'60'
movwf CCP1CON
movlw D'7'
movwf T2CON
movlw D'163'
movwf CCPR1L
banksel PR2
movlw D'200'
movwf PR2
clrf test
loop
btfss PORTB,0
goto loop
testing
btfss test,0
goto percent_50
goto percent_82
percent_50
movlw D'99'
movwf CCPR1H
comf test
goto loop
percent_82
movlw D'163'
movwf CCPR1H
comf test
goto loop
end- - - Updated - - -
I have a to generate a PWM signal of 934Hz and control between two speeds thats 50% duty cycle when i press the button and then on pressing it again it will switch back to 82% duty cycle