kopia lustrzana https://github.com/OpenRTX/OpenRTX
75 wiersze
2.4 KiB
C
75 wiersze
2.4 KiB
C
/***************************************************************************
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* Copyright (C) 2023 by Federico Amedeo Izzo IU2NUO, *
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* Niccolò Izzo IU2KIN *
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* Frederik Saraci IU2NRO *
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* Silvano Seva IU2KWO *
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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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#ifndef STM32_DAC_H
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#define STM32_DAC_H
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#include <stdbool.h>
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#include <stdint.h>
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#include <stm32f4xx.h>
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#include <interfaces/audio.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Driver for STM32F4xx DAC peripheral used as audio output stream device.
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* Input data format is signed 16-bit, internally converted to unsigned 12-bit
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* values for compatibility with the hardware.
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*
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* This driver has two instances:
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*
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* - instance 0: DAC_CH1, DMA1_Stream5, TIM6,
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* - instance 1: DAC_CH2, DMA1_Stream6, TIM7
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*
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* The possible configuration for each channel is the idle level for the DAC
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* output, ranging from 0 to 4096. Idle level is passed by value directly in the
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* config field.
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*/
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enum Stm32DacInstance
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{
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STM32_DAC_CH1 = 0,
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STM32_DAC_CH2,
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};
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extern const struct audioDriver stm32_dac_audio_driver;
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/**
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* Initialize the driver and the peripherals.
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*/
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void stm32dac_init();
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/**
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* Shutdown the driver and the peripherals.
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*/
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void stm32dac_terminate();
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#ifdef __cplusplus
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}
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#endif
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#endif /* STM32_DAC_H */
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