57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/*
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Copyright 2022, Savanni D'Gerinel <savanni@luminescent-dreams.com>
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This file is part of Savanni's AVR library.
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This AVR library 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 3 of the License, or (at your option) any later version.
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This AVR 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 General Public License for more details.
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You should have received a copy of the GNU General Public License along with Lumeto. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef __TIMER_H__
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#define __TIMER_H__
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#include <avr/io.h>
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// ATmega16U4/32U4 Datasheet, table 14.4, page 133
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typedef enum {
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normal,
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pwm_phasecorrect_8bit,
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pwm_phasecorrect_9bit,
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pwm_phasecorrect_10bit,
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ctc,
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fast_pwm_8bit,
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fast_pwm_9bit,
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fast_pwm_10bit,
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pwm_phase_and_frequency_correct_icrtop,
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pwm_phase_and_frequency_correct_ocrtop,
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pwm_phase_correct_icrtop,
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pwm_phase_correct_ocrtop,
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ctc_icr,
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fast_pwm_icrtop,
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fast_pwm_ocrtop,
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} timer_mode_t;
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// Clock prescaler selector, ATmega16U4/32U4 Datasheet, table 14.5, page 1354p
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typedef enum {
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none,
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clk_1,
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clk_8,
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clk_64,
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clk_256,
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clk_1024,
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external_falling_edge,
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external_rising_edge,
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} clock_select_t;
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typedef struct {
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volatile uint8_t count_msb;
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volatile uint8_t count_lsb;
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volatile uint8_t top_msb;
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volatile uint8_t top_lsb;
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} timer_16bit_t;
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#endif
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