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pcnt_types.h
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pcnt_types.h
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/*
* SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief PCNT channel action on control level
*/
typedef enum {
PCNT_CHANNEL_LEVEL_ACTION_KEEP, /*!< Keep current count mode */
PCNT_CHANNEL_LEVEL_ACTION_INVERSE, /*!< Invert current count mode (increase -> decrease, decrease -> increase) */
PCNT_CHANNEL_LEVEL_ACTION_HOLD, /*!< Hold current count value */
} pcnt_channel_level_action_t;
/**
* @brief PCNT channel action on signal edge
*/
typedef enum {
PCNT_CHANNEL_EDGE_ACTION_HOLD, /*!< Hold current count value */
PCNT_CHANNEL_EDGE_ACTION_INCREASE, /*!< Increase count value */
PCNT_CHANNEL_EDGE_ACTION_DECREASE, /*!< Decrease count value */
} pcnt_channel_edge_action_t;
/**
* @brief PCNT unit zero cross mode
*/
typedef enum {
PCNT_UNIT_ZERO_CROSS_POS_ZERO, /*!< start from positive value, end to zero, i.e. +N->0 */
PCNT_UNIT_ZERO_CROSS_NEG_ZERO, /*!< start from negative value, end to zero, i.e. -N->0 */
PCNT_UNIT_ZERO_CROSS_NEG_POS, /*!< start from negative value, end to positive value, i.e. -N->+M */
PCNT_UNIT_ZERO_CROSS_POS_NEG, /*!< start from positive value, end to negative value, i.e. +N->-M */
} pcnt_unit_zero_cross_mode_t;
#ifdef __cplusplus
}
#endif