45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include "soc/sigmadelta_caps.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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* @brief SIGMADELTA port number, the max port number is (SIGMADELTA_NUM_MAX -1).
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*/
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typedef int sigmadelta_port_t;
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/**
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* @brief Sigma-delta channel list
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*/
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typedef int sigmadelta_channel_t;
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/**
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* @brief Sigma-delta configure struct
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*/
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typedef struct {
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sigmadelta_channel_t channel; /*!< Sigma-delta channel number */
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int8_t sigmadelta_duty; /*!< Sigma-delta duty, duty ranges from -128 to 127. */
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uint8_t sigmadelta_prescale; /*!< Sigma-delta prescale, prescale ranges from 0 to 255. */
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uint8_t sigmadelta_gpio; /*!< Sigma-delta output io number, refer to gpio.h for more details. */
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} sigmadelta_config_t;
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#ifdef __cplusplus
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}
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#endif |