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71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
/*
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* SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include "driver/dac_types.h"
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#include "esp_err.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if SOC_DAC_SUPPORTED
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typedef struct dac_oneshot_s *dac_oneshot_handle_t; /*!< DAC oneshot channel handle */
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/**
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* @brief DAC oneshot channel configuration
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*
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*/
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typedef struct {
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dac_channel_t chan_id; /*!< DAC channel id */
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} dac_oneshot_config_t;
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/**
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* @brief Allocate a new DAC oneshot channel
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* @note The channel will be enabled as well when the channel allocated
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*
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* @param[in] oneshot_cfg The configuration for the oneshot channel
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* @param[out] ret_handle The returned oneshot channel handle
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* @return
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* - ESP_ERR_INVALID_ARG The input parameter is invalid
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* - ESP_ERR_INVALID_STATE The DAC channel has been registered already
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* - ESP_ERR_NO_MEM No memory for the DAC oneshot channel resources
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* - ESP_OK Allocate the new DAC oneshot channel success
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*/
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esp_err_t dac_oneshot_new_channel(const dac_oneshot_config_t *oneshot_cfg, dac_oneshot_handle_t *ret_handle);
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/**
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* @brief Delete the DAC oneshot channel
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* @note The channel will be disabled as well when the channel deleted
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*
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* @param[in] handle The DAC oneshot channel handle
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* @return
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* - ESP_ERR_INVALID_ARG The input parameter is invalid
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* - ESP_ERR_INVALID_STATE The channel has already been de-registered
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* - ESP_OK Delete the oneshot channel success
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*/
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esp_err_t dac_oneshot_del_channel(dac_oneshot_handle_t handle);
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/**
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* @brief Output the voltage
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* @note Generally it'll take 7~11 us on ESP32 and 10~21 us on ESP32-S2
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*
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* @param[in] handle The DAC oneshot channel handle
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* @param[in] digi_value The digital value that need to be converted
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* @return
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* - ESP_ERR_INVALID_ARG The input parameter is invalid
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* - ESP_OK Convert the digital value success
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*/
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esp_err_t dac_oneshot_output_voltage(dac_oneshot_handle_t handle, uint8_t digi_value);
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#endif // SOC_DAC_SUPPORTED
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#ifdef __cplusplus
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}
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#endif
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