kopia lustrzana https://github.com/espressif/esp-idf
67 wiersze
1.8 KiB
ReStructuredText
67 wiersze
1.8 KiB
ReStructuredText
Pulse Counter
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=============
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Overview
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--------
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The PCNT (Pulse Counter) module is designed to count the number of rising and/or falling edges of an input signal. Each pulse counter unit has a 16-bit signed counter register and two channels that can be configured to either increment or decrement the counter. Each channel has a signal input that accepts signal edges to be detected, as well as a control input that can be used to enable or disable the signal input. The inputs have optional filters that can be used to discard unwanted glitches in the signal.
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Application Example
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-------------------
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Pulse counter with control signal and event interrupt example: :example:`peripherals/pcnt`.
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API Reference
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-------------
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Header Files
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^^^^^^^^^^^^
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* :component_file:`driver/include/driver/pcnt.h`
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Macros
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^^^^^^
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Type Definitions
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^^^^^^^^^^^^^^^^
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Enumerations
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^^^^^^^^^^^^
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.. doxygenenum:: pcnt_ctrl_mode_t
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.. doxygenenum:: pcnt_count_mode_t
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.. doxygenenum:: pcnt_unit_t
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.. doxygenenum:: pcnt_channel_t
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.. doxygenenum:: pcnt_evt_type_t
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Structures
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^^^^^^^^^^
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.. doxygenstruct:: pcnt_config_t
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Functions
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^^^^^^^^^
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.. doxygenfunction:: pcnt_unit_config
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.. doxygenfunction:: pcnt_get_counter_value
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.. doxygenfunction:: pcnt_counter_pause
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.. doxygenfunction:: pcnt_counter_resume
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.. doxygenfunction:: pcnt_counter_clear
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.. doxygenfunction:: pcnt_intr_enable
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.. doxygenfunction:: pcnt_intr_disable
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.. doxygenfunction:: pcnt_event_enable
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.. doxygenfunction:: pcnt_event_disable
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.. doxygenfunction:: pcnt_set_event_value
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.. doxygenfunction:: pcnt_get_event_value
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.. doxygenfunction:: pcnt_isr_register
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.. doxygenfunction:: pcnt_set_pin
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.. doxygenfunction:: pcnt_filter_enable
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.. doxygenfunction:: pcnt_filter_disable
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.. doxygenfunction:: pcnt_set_filter_value
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.. doxygenfunction:: pcnt_get_filter_value
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.. doxygenfunction:: pcnt_set_mode
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