mirror of
https://github.com/eddyem/stm32samples.git
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50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
/*
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* This file is part of the usbcangpio project.
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* Copyright 2026 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <stdint.h>
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// used timers
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typedef enum{
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TIM_UNSUPPORTED = 0,
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TIM1_IDX,
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TIM2_IDX,
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TIM3_IDX,
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TIM14_IDX,
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TIM16_IDX,
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TIMERS_AMOUNT
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}timidx_t;
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// Timers for PWM
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typedef struct{
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timidx_t timidx : 3; // timer index from array of timers used
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uint8_t chidx : 2; // channel index (0..3)
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uint8_t collision : 1; // have collision with other channel (1)
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uint8_t collport : 1; // collision port index (0 - GPIOA, 1 - GPIOB)
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uint8_t collpin : 4; // collision pin index (0..15)
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} pwmtimer_t;
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void pwm_setup();
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int canPWM(uint8_t port, uint8_t pin, pwmtimer_t *t);
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int startPWM(uint8_t port, uint8_t pin);
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void stopPWM(uint8_t port, uint8_t pin);
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int setPWM(uint8_t port, uint8_t pin, uint8_t val);
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int16_t getPWM(uint8_t port, uint8_t pin);
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