-- -- file : jPWMpin.jal -- author : Branko Karaklajic -- date : 21-MAY-2000 -- purpose : PWM-Output on PIC pin -- requires : jPWMpin.jal -- -- Copyright (C) 2000 Branko Karaklajic, firstname.lastname@example.org -- -- This library is free software; you can redistribute it and/or -- modify it under the terms of the GNU Library General Public -- License as published by the Free Software Foundation; either -- version 2 of the License, or (at your option) any later version. -- -- This library is distributed in the hope that it will be useful, -- but WITHOUT ANY WARRANTY; without even the implied warranty of -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -- Library General Public License for more details. -- -- You should have received a copy of the GNU Library General Public -- License along with this library; if not, write to the -- Free Software Foundation, Inc., 59 Temple Place - Suite 330, -- Boston, MA 02111-1307, USA. include jPWMpin procedure PWM_OUT(byte in PWM, byte in TRA) is var byte LoPWM var byte HiPWM PWM_out_pin_direction = output assembler local PWMa local PWMb local PWMtra local PWMend bsf status, status_rp0 movlw 0b_1000_0011 OPTION bcf status, status_rp0 movf PWM, W movwf LoPWM sublw 0xFF movwf HiPWM PWMa: bcf INTCON, intcon_t0if movf HiPWM, W movwf TMR0 PWMb: bsf PWM_out_pin call PWMtra bcf INTCON, intcon_t0if movf LoPWM, W movwf TMR0 bcf PWM_out_pin call PWMtra decfsz TRA,f goto PWMa goto PWMend PWMtra: btfss INTCON, intcon_t0if goto PWMtra return PWMend: end assembler PWM_out_pin_direction = input end procedure
|file: /Techref/piclist/jal/jPWM.jal, 1KB, , updated: 2000/8/15 11:02, local time: 2018/3/20 20:31,
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