bitbang_pwm.h

/* ########################################################################
 
   PICSimLab - Programmable IC Simulator Laboratory
 
   ########################################################################
 
   Copyright (c) : 2023-2025  Luis Claudio Gambôa Lopes <lcgamboa@yahoo.com>
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.
 
   This program 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 General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
   For e-mail suggestions :  lcgamboa@yahoo.com
   ######################################################################## */
 
#ifndef BITBANG_PWM
#define BITBANG_PWM
 
class board;
 
#define PWM_CHANNEL_MAX 32
 
typedef struct {
    int TimerID;
    unsigned int counter;
    unsigned char pin;
    unsigned char out;
    unsigned char duty;
    unsigned char enabled;
    unsigned int freq;
    unsigned int res;
} channel_pwm_t;
 
typedef struct {
    unsigned char channels_count;
    board* pboard;
    channel_pwm_t channels[PWM_CHANNEL_MAX];
} bitbang_pwm_t;
 
void bitbang_pwm_init(bitbang_pwm_t* pwm, board* pboard, const unsigned char channels = 8);
void bitbang_pwm_rst(bitbang_pwm_t* pwm);
void bitbang_pwm_end(bitbang_pwm_t* pwm);
void bitbang_pwm_set_duty(bitbang_pwm_t* pwm, const unsigned char channel, const char duty);
void bitbang_pwm_set_duty_f(bitbang_pwm_t* pwm, const unsigned char channel, const float duty);
void bitbang_pwm_set_pin(bitbang_pwm_t* pwm, const unsigned char channel, const char pin);
void bitbang_pwm_set_freq(bitbang_pwm_t* pwm, const unsigned char channel, unsigned int freq);
void bitbang_pwm_set_enable(bitbang_pwm_t* pwm, const unsigned char channel, unsigned char enable);
 
#endif  // BITBANG_PWM